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Table of Contents
2002 |
|---|
 | 02903 | Global Ozone from TOMS: August 15, 2002 - October 9, 2002 |
| | | This animation shows stratospheric ozone over the entire earth. It is meant to be wrapped around a three-dimensional globe. Of particular interest is the yearly ozone "hole" over Antartica. In 2002, this region of lowered ozone density split into two regions. Red and yellow areas denote regions of high ozone density and dark blue represents areas of low ozone. |
 | 02596 | Maximum Ozone Hole Area for 2002 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 2002. |
 | 02573 | Antarctic Ozone from TOMS: August 15, 2002, to September 29, 2002 |
| | | An animation of the stratospheric ozone hole over Antarctica, as measured by Earth Probe TOMS from August 15, 2002, to September 29, 2002. Red and yellow denote regions of high ozone and dark blue denotes regions of low ozone. |
2001 |
|---|
 | 02617 | Minimum Measured Ozone Level in 2001 |
 | 02595 | Maximum Ozone Hole Area for 2001 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 2001. |
 | 02284 | Total Ozone from Earth Probe TOMS: 7/26/1996-11/4/2001 |
| | | Ozone in the northern and southern hemispheres as measured by Earth Probe TOMS from 7/26/1996 to 11/4/2001 |
 | 02275 | Antarctic Ozone from TOMS: July 15, 2001 to October 9, 2001 |
| | | An animation of the stratospheric ozone hole over Antarctica, as measured by Earth Probe TOMS from July 15, 2001 through October 9, 2001. Red and yellow denote regions of high ozone and dark blue denotes regions of low ozone. |
 | 02256 | Erythemal Index for August 2000 through July 2001: Rotating Globe |
| | | Rotating Globe shows the fluctuation in the erythemal index over the course of a year (August, 2000, through July, 2001). This mpeg is a different rendering of animation 2221. |
 | 02229 | Erythemal Index for August 2000 through July 2001: Australia and Asia (With Dates) |
| | | This erythemal index for Asia and Australia shows the range of ground levels of UV radiation from the highest (in red) to the lowest (in purple). This animation shows the fluctuation with the red areas moving from the equatorial region, Southward, then back to the middle as time passes from August, 2000 to July, 2001. |
 | 02227 | Erythemal Index for August 2000 through July 2001: Europe and Africa (With Dates) |
| | | This erythemal index for Europe and Africa shows the range of ground levels of UV radiation from the highest (in red) to the lowest (in purple). This animation shows the fluctuation with the red areas moving from the equatorial region, Southward, then back to the middle as time passes from August, 2000 to July, 2001. |
 | 02225 | Erythemal Index for August 2000 through July 2001: North and South America (With Dates) |
| | | This erythemal index for North and South America shows the range of ground levels of UV radiation from the highest (in red) to the lowest (in purple). This animation shows the fluctuation with the red areas moving from the equatorial region, Southward, then back to the middle as time passes from August, 2000 to July, 2001. |
 | 02223 | Erythemal Index for August 2000 through July 2001: Full Earth (With Dates) |
| | | Flat view of the Earth showing reds and yellows over the
equatorial regions (denoting the higher ground levels of UV radiation) and cool
greens, blues, and purples as you move towards the poles (denoting lower ground
levels of UV radiation). |
 | 02220 | Erythemal Index for August 2000 through July 2001: Rotating Globe (With Dates) |
| | | Rotating Globe shows the fluctuation in the erythemal index over the course of a year (August, 2000, through July, 2001). |
 | 02218 | Erythemal Index for August 2000 through July 2001: Zoom to North America (With Dates) |
| | | A global view of the Earth, gradually zooming into North America covered in purples (to the North) and blues (to the South), denoting low levels of ground level ultraviolet radiation in August, 2000. This animation shows the fluctuation in the levels through the year. By January, 2001, the red showing high levels of ground level ultraviolet radiation creep in and then fade away. The data covers August, 2000 through July, 2001. |
 | 02217 | Daily Erythemal Index over the United States for July 2001 (With Dates) |
| | | View of the United States with red (showing high levels of ground level ultraviolet radiation) covering the Western US and then changing to splotchy yellows, greens and blues as you move East (denoting lower levels of ground level ultraviolet radiation). Daily data is presented for July 1, 2001 through August 2, 2001. |
 | 02166 | EPTOMS Ozone (7/26/96 - 12/4/00) |
| | | Ozone in the northern and southern hemisphere as measured by Earth Probe TOMS from 7/26/96 to 12/4/00 |
2000 |
|---|
 | 02621 | TOMS Ozone of the South Pole for the National Geographic Society |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02594 | Maximum Ozone Hole Area for 2000 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 2000. |
| 02284 | Total Ozone from Earth Probe TOMS: 7/26/1996-11/4/2001 |
| | | Ozone in the northern and southern hemispheres as measured by Earth Probe TOMS from 7/26/1996 to 11/4/2001 |
| 02256 | Erythemal Index for August 2000 through July 2001: Rotating Globe |
| | | Rotating Globe shows the fluctuation in the erythemal index over the course of a year (August, 2000, through July, 2001). This mpeg is a different rendering of animation 2221. |
| 02229 | Erythemal Index for August 2000 through July 2001: Australia and Asia (With Dates) |
| | | This erythemal index for Asia and Australia shows the range of ground levels of UV radiation from the highest (in red) to the lowest (in purple). This animation shows the fluctuation with the red areas moving from the equatorial region, Southward, then back to the middle as time passes from August, 2000 to July, 2001. |
| 02227 | Erythemal Index for August 2000 through July 2001: Europe and Africa (With Dates) |
| | | This erythemal index for Europe and Africa shows the range of ground levels of UV radiation from the highest (in red) to the lowest (in purple). This animation shows the fluctuation with the red areas moving from the equatorial region, Southward, then back to the middle as time passes from August, 2000 to July, 2001. |
| 02225 | Erythemal Index for August 2000 through July 2001: North and South America (With Dates) |
| | | This erythemal index for North and South America shows the range of ground levels of UV radiation from the highest (in red) to the lowest (in purple). This animation shows the fluctuation with the red areas moving from the equatorial region, Southward, then back to the middle as time passes from August, 2000 to July, 2001. |
| 02223 | Erythemal Index for August 2000 through July 2001: Full Earth (With Dates) |
| | | Flat view of the Earth showing reds and yellows over the
equatorial regions (denoting the higher ground levels of UV radiation) and cool
greens, blues, and purples as you move towards the poles (denoting lower ground
levels of UV radiation). |
| 02220 | Erythemal Index for August 2000 through July 2001: Rotating Globe (With Dates) |
| | | Rotating Globe shows the fluctuation in the erythemal index over the course of a year (August, 2000, through July, 2001). |
| 02218 | Erythemal Index for August 2000 through July 2001: Zoom to North America (With Dates) |
| | | A global view of the Earth, gradually zooming into North America covered in purples (to the North) and blues (to the South), denoting low levels of ground level ultraviolet radiation in August, 2000. This animation shows the fluctuation in the levels through the year. By January, 2001, the red showing high levels of ground level ultraviolet radiation creep in and then fade away. The data covers August, 2000 through July, 2001. |
 | 02201 | Erythemal Index 2000: United States Loop (With Dates) |
| | | View of North America covered in purples (to the North) and blues (to the South), denoting low levels of ground level ultraviolet radiation in January, 2000. This animation shows the fluctuation in the levels through the year. By mid-year, the red showing high levels of ground level ultraviolet radiation creep in and then fade away. This data was collected over the year 2000. |
 | 02199 | Erythemal Index 2000: Full Globe Loop (With Dates) |
| | | Earth view of the Western Hemisphere. Red (denoting highest ground levels of ultraviolet radiation) covers most of South America and the colors fading to blues (denoting lowest ground levels of ultraviolet radiation) over North America. This data was collected over the year 2000. |
 | 02197 | Erythemal Index 2000: Push-in to the United States (With Dates) |
| | | View of North and South America with red (denoting highest ground levels of ultraviolet radiation) dominating most of South America and the colors fading to blues (denoting lowest ground levels of ultraviolet radiation) over North America. This data was collected over the year 2000. |
 | 02166 | EPTOMS Ozone (7/26/96 - 12/4/00) |
| | | Ozone in the northern and southern hemisphere as measured by Earth Probe TOMS from 7/26/96 to 12/4/00 |
 | 02165 | EPTOMS Ozone: Northern Hemisphere (1/1/00 - 12/31/00) |
| | | Ozone in the northern hemisphere as measured by Earth Probe TOMS from 1/1/2000 to 12/31/2000 |
 | 02164 | EPTOMS Ozone: Southern Hemisphere (1/4/99 - 12/31/00) |
| | | Ozone in the southern hemisphere as measured by Earth Probe TOMS from 1/4/1999 to 12/31/2000 |
 | 02018 | Safari 2000 Tropospheric Ozone |
| | | Tropospheric Ozone over Southern Africa from 9/5/2000 to 9/25/2000 as measured by Earth Probe TOMS |
 | 01204 | TOMS Ozone at the South Pole: August 1, 2000 to October 2, 2000 |
| | | Total ozone over the South Pole from August 1, 2000 through October 2, 2000 as measured by Earth Probe TOMS. Dark blue represents regions of very low ozone concentration in the stratosphere. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
 | 01167 | TOMS Ozone over Antarctica: August 1, 2000 to September 6, 2000 |
| | | Ozone over Antarctica from August 1, 2000 to September 6, 2000 as measured by Earth Probe TOMS |
 | 01087 | TOMS Ozone in the Northern Hemisphere: Feb 1, 2000-March 30, 2000 |
| | | Ozone in the northern hemisphere from February 1, 2000, to March 30, 2000, as measured by Earth Probe TOMS |
1999 |
|---|
 | 02836 | Ozone Visualization Comparison |
| | | Total ozone density over the South Pole, as measured by Earth Probe TOMS in 1999 |
 | 02620 | Total Ozone Over Antarctica from TOMS: October 3, 1999 |
| | | Total ozone over Antarctica for October 3, 1999 as measured by Earth Probe TOMS. Dark blue represents regions of low ozone and red represents regions of high ozone. |
 | 02616 | Minimum Measured Ozone Level in 1999 |
| 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02593 | Maximum Ozone Hole Area for 1999 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1999. |
| 02284 | Total Ozone from Earth Probe TOMS: 7/26/1996-11/4/2001 |
| | | Ozone in the northern and southern hemispheres as measured by Earth Probe TOMS from 7/26/1996 to 11/4/2001 |
 | 02192 | Tropospheric Ozone in Tropical Air Masses from Earth Probe TOMS |
| | | Tropospheric ozone in tropical air masses over North and South America, Europe, and Africa from 7/1/99 through 7/31/99 |
| 02166 | EPTOMS Ozone (7/26/96 - 12/4/00) |
| | | Ozone in the northern and southern hemisphere as measured by Earth Probe TOMS from 7/26/96 to 12/4/00 |
| 02164 | EPTOMS Ozone: Southern Hemisphere (1/4/99 - 12/31/00) |
| | | Ozone in the southern hemisphere as measured by Earth Probe TOMS from 1/4/1999 to 12/31/2000 |
 | 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
 | 00719 | Arctic Ozone from TOMS: September 1, 1999 through November 30, 1999 |
| | | Total ozone over the arctic for September 1, 1999 through November 30, 1999, as measured by Earth Probe TOMS |
 | 00718 | Peak of the Antarctic Ozone Hole: September 15, 1999 (Still) |
 | 00717 | Ozone update on 3 October 1999 |
| | | Total ozone over Antarctica for July 25, 1999 through October 3, 1999, as measured by Earth Probe TOMS |
 | 00714 | Antarctic Ozone from Earth Probe TOMS: July 25, 1999 through September 25, 1999 |
| | | Total ozone measurements from Earth Probe TOMS over Antarctica for the period July 25, 1999 through September 25, 1999 |
 | 00708 | TOMS Ozone over Antarctica: June 1999 to September 1999 |
| | | Total ozone over Antarctica from June 1999 through September 1999, as measured by Earth Probe TOMS |
 | 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
 | 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1998 |
|---|
 | 02619 | Total Ozone Over Antarctica from TOMS: September 19, 1998 and October 1, 1998 (with color bar and dates) |
| | | Total ozone over Antarctica for September 19, 1998 and October 1, 1998 as measured by Earth Probe TOMS. Dark blue represents regions of low ozone and red represents regions of high ozone. |
 | 02615 | Minimum Measured Ozone Level in 1998 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02592 | Maximum Ozone Hole Area for 1998 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1998. |
| 02284 | Total Ozone from Earth Probe TOMS: 7/26/1996-11/4/2001 |
| | | Ozone in the northern and southern hemispheres as measured by Earth Probe TOMS from 7/26/1996 to 11/4/2001 |
| 02166 | EPTOMS Ozone (7/26/96 - 12/4/00) |
| | | Ozone in the northern and southern hemisphere as measured by Earth Probe TOMS from 7/26/96 to 12/4/00 |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
 | 00713 | Antarctic Ozone from Earth Probe TOMS: June 1998 through December 1998 |
| | | Total ozone measurements from Earth Probe TOMS over Antarctica for the period June 1998 through December 1998 |
 | 00380 | Tropospheric Ozone from Earth Probe TOMS: Atlantic Ocean - 9 Day Averages (May 1997 - May 1998) |
| | | Aerosol concentrations over the Atlantic Ocean from May 1997 through May 1998 from Earth Probe TOMS |
 | 00379 | Tropospheric Ozone from Earth Probe TOMS: Indonesia - 9 Day Averages (May 1997 - May 1998) |
| | | Aerosol concentrations over Indonesia from May 1997 through May 1998 from Earth Probe TOMS |
 | 00378 | Tropospheric Ozone from Earth Probe TOMS: Global - 9 Day Averages (May 1997 - May 1998) |
| | | Global aerosol concentrations from May 1997 through May 1998 from Earth Probe TOMS |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
 | 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
 | 00232 | Total Ozone over Antarctica from TOMS: Jul 1, 1998 through Oct 1, 1998 (Rotation to Pole with Dates) |
| | | Total ozone over Antarctica for the period July 1, 1998 through October 1, 1998 as measured by Earth Probe TOMS. Dark blue represents regions of low ozone and red represents regions of high ozone. |
1997 |
|---|
 | 02614 | Minimum Measured Ozone Level in 1997 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02591 | Maximum Ozone Hole Area for 1997 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1997. |
| 02284 | Total Ozone from Earth Probe TOMS: 7/26/1996-11/4/2001 |
| | | Ozone in the northern and southern hemispheres as measured by Earth Probe TOMS from 7/26/1996 to 11/4/2001 |
| 02166 | EPTOMS Ozone (7/26/96 - 12/4/00) |
| | | Ozone in the northern and southern hemisphere as measured by Earth Probe TOMS from 7/26/96 to 12/4/00 |
 | 02073 | Tropospheric Ozone and Smoke from Earth Probe TOMS: Indonesia |
| | | Tropospheric Ozone and Smoke over Indonesia from July 6, 1997
to October 22, 1997 |
 | 02072 | Tropospheric Ozone and Smoke from Earth Probe TOMS: Indian Ocean |
| | | Tropospheric Ozone and Smoke over the Indian Ocean from July 6, 1997 to October 22, 1997 |
 | 02071 | Tropospheric Ozone and Smoke from Earth Probe TOMS: Indian Ocean to Indonesia Zoom |
| | | Tropospheric Ozone and Smoke over the Indian Ocean and Indonesia from July 6, 1997 to October 22, 1997 |
 | 02004 | Indonesian Tropospheric Ozone and Aerosol Index |
| | | Tropospheric Ozone and Aerosol Index over Indonesia from July 6, 1997 to October 30, 1997 |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
 | 00712 | Arctic Ozone Hole from Earth Probe TOMS: February 1, 1997 through May 31, 1997 |
| | | Ozone measurements from Earth Probe TOMS for February 1, 1997 through May 31, 1997 showing the formation of an Arctic ozone hole |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00380 | Tropospheric Ozone from Earth Probe TOMS: Atlantic Ocean - 9 Day Averages (May 1997 - May 1998) |
| | | Aerosol concentrations over the Atlantic Ocean from May 1997 through May 1998 from Earth Probe TOMS |
| 00379 | Tropospheric Ozone from Earth Probe TOMS: Indonesia - 9 Day Averages (May 1997 - May 1998) |
| | | Aerosol concentrations over Indonesia from May 1997 through May 1998 from Earth Probe TOMS |
| 00378 | Tropospheric Ozone from Earth Probe TOMS: Global - 9 Day Averages (May 1997 - May 1998) |
| | | Global aerosol concentrations from May 1997 through May 1998 from Earth Probe TOMS |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1996 |
|---|
 | 02613 | Minimum Measured Ozone Level in 1996 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02590 | Maximum Ozone Hole Area for 1996 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1996. |
| 02284 | Total Ozone from Earth Probe TOMS: 7/26/1996-11/4/2001 |
| | | Ozone in the northern and southern hemispheres as measured by Earth Probe TOMS from 7/26/1996 to 11/4/2001 |
| 02166 | EPTOMS Ozone (7/26/96 - 12/4/00) |
| | | Ozone in the northern and southern hemisphere as measured by Earth Probe TOMS from 7/26/96 to 12/4/00 |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1994 |
|---|
 | 02612 | Minimum Measured Ozone Level in 1994 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02589 | Maximum Ozone Hole Area for 1994 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1994. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1993 |
|---|
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02588 | Maximum Ozone Hole Area for 1993 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1993. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
 | 00038 | 1993 Daily Ozone from Meteor-3 |
| | | Total ozone as measured by Meteor-3 TOMS during the period 1/1/1993 through 12/31/1993 |
 | 00037 | 1993 Daily Ozone from Nimbus-7 |
| | | Total ozone as measured by Nimbus-7 TOMS during the period 1/1/1993 through 5/7/1993 |
 | 00014 | Restorer: An Example with Ozone Data |
| | | A comparison of restorer and non-restorer techniques applied to ozone data from Nimus-7 TOMS from 1/1/1992 through 4/30/1993 |
1992 |
|---|
 | 02611 | Minimum Measured Ozone Level in 1992 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02587 | Maximum Ozone Hole Area for 1992 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1992. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
 | 00835 | TOMS Data Showing the Ozone Hole over Antarctica (8/20/92 - 10/19/92) |
| | | TOMS Ozone over Antarctica from 8/20/92 to 10/19/92. The ozone hole is indicated in shades of blue. The missing data region over the south pole is due to the inability of the TOMS instrument to measure data during the polar night. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
 | 00036 | 1992 Daily Ozone from Nimbus-7 |
| | | Total ozone as measured by Nimbus-7 TOMS during the period 1/1/1992 through 12/31/1992 |
| 00014 | Restorer: An Example with Ozone Data |
| | | A comparison of restorer and non-restorer techniques applied to ozone data from Nimus-7 TOMS from 1/1/1992 through 4/30/1993 |
1991 |
|---|
 | 02610 | Minimum Measured Ozone Level in 1991 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02586 | Maximum Ozone Hole Area for 1991 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1991. |
 | 02183 | Mt. Pinatubo eruption effect on equatorial ozone |
| | | Mt. Pinatubo Eruption caused Equatorial Ozone Hole |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1990 |
|---|
 | 02609 | Minimum Measured Ozone Level in 1990 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02585 | Maximum Ozone Hole Area for 1990 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1990. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1989 |
|---|
 | 02608 | Minimum Measured Ozone Level in 1989 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02584 | Maximum Ozone Hole Area for 1989 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1989. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1988 |
|---|
 | 02607 | Minimum Measured Ozone Level in 1988 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02583 | Maximum Ozone Hole Area for 1988 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1988. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1987 |
|---|
 | 02606 | Minimum Measured Ozone Level in 1987 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02582 | Maximum Ozone Hole Area for 1987 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1987. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1986 |
|---|
 | 02605 | Minimum Measured Ozone Level in 1986 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02581 | Maximum Ozone Hole Area for 1986 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1986. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1985 |
|---|
 | 02604 | Minimum Measured Ozone Level in 1985 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02580 | Maximum Ozone Hole Area for 1985 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1985. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1984 |
|---|
 | 02603 | Minimum Measured Ozone Level in 1984 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02579 | Maximum Ozone Hole Area for 1984 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1984. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1983 |
|---|
 | 02602 | Minimum Measured Ozone Level in 1983 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02578 | Maximum Ozone Hole Area for 1983 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1983. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1982 |
|---|
 | 02601 | Minimum Measured Ozone Level in 1982 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02577 | Maximum Ozone Hole Area for 1982 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1982. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1981 |
|---|
 | 02600 | Minimum Measured Ozone Level in 1981 |
| 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02576 | Maximum Ozone Hole Area for 1981 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1981. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1980 |
|---|
| 02621 | TOMS Ozone of the South Pole for the National Geographic Society |
 | 02599 | Minimum Measured Ozone Level in 1980 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02575 | Maximum Ozone Hole Area for 1980 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1980. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
1979 |
|---|
 | 02598 | Minimum Measured Ozone Level in 1979 |
 | 02597 | TOMS Ozone at the South Pole: October Averages from 1979 through 2000 |
| | | The year 2000's Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASA's Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planet's climate may be changing. The following animation shows how ozone loss at the south pole has grown since the mid-80s. Early readings over Antarctica indicate little or no ozone depletion beyond naturally predicted levels. But as the 80s and 90s progress, a clear change in atmospheric chemistry takes place at the bottom of the world. The hole starts small in the late 80s and spreads as subsequent winter cycles break apart ozone molecules. |
 | 02574 | Maximum Ozone Hole Area for 1979 |
| | | This still shows the maximum stratospheric ozone hole over the Antarctic for 1979. |
| 01395 | Average October Ozone Levels Over Antarctica for 1979 to 1999 |
| | | For more information and related images, please go to (http://svs.gsfc.nasa.gov/~gshirah/toms). Average September ozone levels over Antarctica for these years can be found in animation 710. |
 | 01203 | TOMS Ozone at the South Pole: September Averages from 1979 through 2000. |
| | | Total ozone over the South Pole for each September from 1979 through 2000 as measured by the TOMS instruments on Nimbus 7, Meteor 3, and Earth Probe. Dark blue represents regions of very low ozone concentration in the stratosphere. |
| 00711 | Average March Ozone Levels over the Arctic for 1979 to 1999 |
| | | The evolution of ozone over the Arctic as shown through measurements of average ozone for March for the years 1979 through 1999, excluding 1995 and 1996. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00710 | Average September Ozone Levels over Antarctica for 1979 to 1999 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1999, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
| 00236 | Average September Ozone Levels over Antarctica for 1979 to 1998 |
| | | The evolution of the ozone hole over Antarctica as shown through measurements of average ozone for September for the years 1979 through 1998, excluding 1995. These measurements were made by the TOMS instruments on Nimbus-7, Meteor-3 and Earth Probe. Dark blue represent regions of low ozone and red represents regions of high ozone. |
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