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            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Black Marble night time imagery from Suomi NPP satellite",
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            "id": 5262,
            "url": "https://svs.gsfc.nasa.gov/5262/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Geostationary imagery from NOAA and JAXA satellites",
            "description": "MC02_stage1_WorldView_geostationary_2048x1024_en.png (2480x1240) [1.6 MB] || MC02_stage1_WorldView_geostationary_2048x1024_en_print.jpg (1024x512) [75.9 KB] || MC02_stage1_WorldView_geostationary_2048x1024_en_searchweb.png (320x180) [43.5 KB] || MC02_stage1_WorldView_geostationary_2048x1024_en_thm.png (80x40) [4.3 KB] ||",
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            "url": "https://svs.gsfc.nasa.gov/5263/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Active fires detected by Suomi NPP satellite",
            "description": "MC03_stage1_WorldView_fires_2048x1024_en.png (2480x1240) [3.3 MB] || MC03_stage1_WorldView_fires_2048x1024_en_print.jpg (1024x512) [164.9 KB] || MC03_stage1_WorldView_fires_2048x1024_en_searchweb.png (320x180) [91.5 KB] || MC03_stage1_WorldView_fires_2048x1024_en_thm.png (80x40) [6.6 KB] ||",
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            "id": 5264,
            "url": "https://svs.gsfc.nasa.gov/5264/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Rain and Snow",
            "description": "MC01_stage2_WorldView_rain_snow_2048x1024_en.png (2480x1240) [1.2 MB] || MC01_stage2_WorldView_rain_snow_2048x1024_en_print.jpg (1024x512) [158.5 KB] || MC01_stage2_WorldView_rain_snow_2048x1024_en_searchweb.png (320x180) [58.2 KB] || MC01_stage2_WorldView_rain_snow_2048x1024_en_thm.png (80x40) [6.1 KB] ||",
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            "url": "https://svs.gsfc.nasa.gov/5265/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Sea Surface Temperature",
            "description": "MC02_stage2_WorldView_sea_surface_2048x1024_en.png (2480x1240) [2.1 MB] || MC02_stage2_WorldView_sea_surface_2048x1024_en_print.jpg (1024x512) [143.9 KB] || MC02_stage2_WorldView_sea_surface_2048x1024_en_searchweb.png (320x180) [74.2 KB] || MC02_stage2_WorldView_sea_surface_2048x1024_en_thm.png (80x40) [6.1 KB] ||",
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            "url": "https://svs.gsfc.nasa.gov/5266/",
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            "title": "Worldview: Land Surface Temperature",
            "description": "MC04_stage2_WorldView_land_surface_2048x1024_en.png (2480x1240) [3.7 MB] || MC04_stage2_WorldView_land_surface_2048x1024_en_print.jpg (1024x512) [208.3 KB] || MC04_stage2_WorldView_land_surface_2048x1024_en_searchweb.png (320x180) [99.3 KB] || MC04_stage2_WorldView_land_surface_2048x1024_en_thm.png (80x40) [7.2 KB] ||",
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            "url": "https://svs.gsfc.nasa.gov/5267/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Polar Sea Ice Concentration",
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            "url": "https://svs.gsfc.nasa.gov/5269/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Aerosol Optical Depth (AOD) by Suomi NPP satellite",
            "description": "MC02_stage1_WorldView_no2_1024x1024_aq.png (2480x1240) [14.6 KB] || MC02_stage1_WorldView_no2_1024x1024_aq_print.jpg (1024x512) [1.2 KB] || MC02_stage1_WorldView_no2_1024x1024_aq_searchweb.png (320x180) [278 bytes] || MC02_stage1_WorldView_no2_1024x1024_aq_thm.png (80x40) [262 bytes] ||",
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            "url": "https://svs.gsfc.nasa.gov/5270/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Carbon Monoxide (CO) by Aqua satellite",
            "description": "MC03_stage1_WorldView_co_2048x1024_aq.png (2480x1240) [14.6 KB] || MC03_stage1_WorldView_co_2048x1024_aq_print.jpg (1024x512) [1.2 KB] || MC03_stage1_WorldView_co_2048x1024_aq_searchweb.png (320x180) [278 bytes] || MC03_stage1_WorldView_co_2048x1024_aq_thm.png (80x40) [262 bytes] ||",
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            "url": "https://svs.gsfc.nasa.gov/5271/",
            "result_type": "Visualization",
            "release_date": "2024-09-13T00:00:00-04:00",
            "title": "Worldview: Nitrogen Dioxide (NO2) by Aura satellite",
            "description": "MC04_stage1_WorldView_ozone_2048x1024_aq.png (2480x1240) [14.6 KB] || MC04_stage1_WorldView_ozone_2048x1024_aq_print.jpg (1024x512) [1.2 KB] || MC04_stage1_WorldView_ozone_2048x1024_aq_searchweb.png (320x180) [278 bytes] || MC04_stage1_WorldView_ozone_2048x1024_aq_thm.png (80x40) [262 bytes] ||",
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            "url": "https://svs.gsfc.nasa.gov/5260/",
            "result_type": "Visualization",
            "release_date": "2024-09-09T09:00:00-04:00",
            "title": "Worldview: True color imagery from Terra satellite",
            "description": "MC01_stage1_WorldView_truecolor_2048x1024_en.png (2480x1240) [14.6 KB] || MC01_stage1_WorldView_truecolor_2048x1024_en_print.jpg (1024x512) [1.2 KB] || MC01_stage1_WorldView_truecolor_2048x1024_en_searchweb.png (320x180) [278 bytes] || MC01_stage1_WorldView_truecolor_2048x1024_en_thm.png (80x40) [262 bytes] ||",
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            "url": "https://svs.gsfc.nasa.gov/5257/",
            "result_type": "Visualization",
            "release_date": "2024-04-12T00:00:00-04:00",
            "title": "04/08/24 Total Solar Eclipse: NOAA GOES-East True Color Imagery",
            "description": "A true color view of the Earth from GOES-16 (GOES-East) from 2024/04/08 15:00 UTC to 2024/04/08 20:30 UTC. This view of the Americas captures the passage of the total solar eclipse over North America on 04/08/2024. || PR_WorldView_geostationary_east_2160x2160_en.00200_print.jpg (1024x1024) [322.2 KB] || PR_WorldView_geostationary_east_2160x2160_en.00200_searchweb.png (320x180) [126.2 KB] || PR_WorldView_geostationary_east_2160x2160_en.00200_thm.png (80x40) [8.2 KB] || PR_WorldView_geostationary_east_2160x2160_en.mp4 (2160x2160) [48 bytes] || ",
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        {
            "id": 5120,
            "url": "https://svs.gsfc.nasa.gov/5120/",
            "result_type": "Visualization",
            "release_date": "2023-06-26T09:00:00-04:00",
            "title": "NOAA GOES-East and NOAA GOES-West True Color Imagery Over Past 5 Days",
            "description": "A true color view of the Earth from GOES-16 (GOES-East) over the past 5 days. || PR_WorldView_geostationary_east_2160x2160_en.00001_print.jpg (1024x1024) [306.7 KB] || PR_WorldView_geostationary_east_2160x2160_en.00001_searchweb.png (320x180) [105.7 KB] || PR_WorldView_geostationary_east_2160x2160_en.00001_thm.png (80x40) [7.5 KB] || east (2160x2160) [0 Item(s)] || PR_WorldView_geostationary_east_2160x2160_en.mp4 (2160x2160) [1.1 GB] ||",
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        {
            "id": 12819,
            "url": "https://svs.gsfc.nasa.gov/12819/",
            "result_type": "Produced Video",
            "release_date": "2018-06-05T09:50:00-04:00",
            "title": "NASA's Worldview – Two Decades of Earth Data",
            "description": "Two decades of planetary change are available to explore in NASA's Worldview.  Detailed views of volcanoes fuming, hurricanes flooding, dams being built, and wildfires sweeping across landscapes are just some of the data accessible.  Worldview users can even create data animations at the touch of a button and easily share imagery, giving NASA's worldwide audience the ability to interactively view their world their way and interactively explore almost 20 years of planetary change. Complete transcript available.Watch this video on the NASA Goddard YouTube channel.Music: Natural Time Cycles by Laurent Dury || Hurricane_Katrina_print.jpg (1024x576) [183.3 KB] || Hurricane_Katrina.png (1920x1080) [3.0 MB] || Hurricane_Katrina_thm.png (80x40) [8.1 KB] || Hurricane_Katrina_searchweb.png (180x320) [111.0 KB] || TWITTER_720_MODIS18years_29.97_V10_twitter_720.mp4 (1280x720) [36.2 MB] || MODIS18years_29.97_V10.webm (960x540) [66.0 MB] || MODIS18years_29.97_V10_appletv_subtitles.m4v (1280x720) [96.9 MB] || MODIS18years_29.97_V10_large.mp4 (1920x1080) [169.2 MB] || MODIS18years_29.97_V10_appletv.m4v (1280x720) [96.9 MB] || YOUTUBE_720_MODIS18years_29.97_V10_youtube_720.mp4 (1280x720) [280.9 MB] || FACEBOOK_720_MODIS18years_29.97_V10_facebook_720.mp4 (1280x720) [226.7 MB] || YOUTUBE_1080_MODIS18years_29.97_V10_youtube_1080.mp4 (1920x1080) [307.0 MB] || MODIS18years_Captions.en_US.vtt [1.8 KB] || MODIS18years_Captions.en_US.srt [1.8 KB] || CH28_MODIS18years_29.97_V10_ch28.mov (1280x720) [1.6 GB] || MODIS18years_29.97_V10_lowres.mp4 (480x272) [22.8 MB] || MODIS18years_29.97_V10.mov (1920x1080) [2.3 GB] || ",
            "hits": 97
        },
        {
            "id": 12928,
            "url": "https://svs.gsfc.nasa.gov/12928/",
            "result_type": "Animation",
            "release_date": "2018-04-17T14:00:00-04:00",
            "title": "How to View and Share Your Planet with Worldview",
            "description": "NASA’s Worldview app lets you explore Earth as it looks right now or as it looked almost 20 years ago. Through an easy-to-use map interface, you can watch tropical storms developing over the Pacific Ocean; track the movement of icebergs after they calve from glaciers and ice shelves; see wildfires spread and grow as they burn vegetation in its path. Pan-and-zoom to your region of the world to see not only what it looks like today, but to investigate changes over time. Worldview's nighttime lights layers provides a truly unique perspective of our planet at night.What else can you do with Worldview? Add imagery layers by discipline, natural hazard, or key word to learn more about what’s happening on this dynamic planet. View Earth’s frozen regions with the Arctic and Antarctic views. Take a look at current natural events like tropical storms, volcanic eruptions, wildfires and icebergs at the touch of a button using the “Events” tab.  See a view you like? Take a snapshot and share your map with a friend or colleague. Want to track the spread of a wildfire? You can even create an animated gif to see change over time.Explore your Earth your way with Worldview today! #NASA4Earthhttps://worldview.earthdata.nasa.gov || ",
            "hits": 72
        },
        {
            "id": 10840,
            "url": "https://svs.gsfc.nasa.gov/10840/",
            "result_type": "Produced Video",
            "release_date": "2011-10-18T00:00:00-04:00",
            "title": "Tour Of The Cryosphere",
            "description": "Water doesn't flow here; it freezes. Snow falls often, and if it melts it is likely to freeze again and add to the accumulation of ice that can date back thousands of millennia. If you can see the ground, it is frozen. If you cannot see the ground, it could be sitting under ice miles thick, like in Antarctica. This is the cryosphere, those regions of Earth from the North and South poles to mountain ranges near the Equator where water is found in solid form. The cryosphere covers many landscapes, but remains dominated by the polar regions. A cover of floating sea ice cracks, shrinks and expands constantly over the Arctic. Sheets of ice cover the bases of mountain ranges and cling to craggy bedrock in Antarctica and Greenland—the two ice sheets alone account for 90 percent of the fresh water on the planet. These regions of the cryosphere are important to scientists because they regulate global climate and are seeing more dramatic climate-driven changes than other regions. The Arctic is warming faster than any spot on Earth while receding and accelerating glaciers in Antarctica and Greenland raise the concern of sea level rise. Watch in the narrated tour below how NASA uses its satellite fleet to observe the remote reaches of the cryosphere. || ",
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        {
            "id": 10574,
            "url": "https://svs.gsfc.nasa.gov/10574/",
            "result_type": "Produced Video",
            "release_date": "2010-02-22T00:00:00-05:00",
            "title": "Piecing Together the Temperature Puzzle",
            "description": "The decade from 2000 to 2009 was the warmest in the modern record. \"Piecing Together the Temperature Puzzle\" illustrates how NASA satellites enable us to study possible causes of climate change. The video explains what role fluctuations in the solar cycle, changes in snow and cloud cover, and rising levels of heat-trapping gases may play in contributing to climate change. For complete transcript, click here. || Temperature_Puzzle_fullres.01252_print.jpg (1024x576) [113.2 KB] || Temperature_Puzzle_fullres_web.png (320x180) [207.8 KB] || Temperature_Puzzle_fullres_thm.png (80x40) [16.9 KB] || Temperature_Puzzle_AppleTV.webmhd.webm (960x540) [83.9 MB] || Temperature_Puzzle_fullres.mov (1280x720) [166.2 MB] || Temperature_Puzzle_AppleTV.m4v (960x720) [211.4 MB] || Temperature_Puzzle__Youtube.mov (1280x720) [87.7 MB] || Temperature_Puzzle_iPod_small.m4v (640x360) [67.9 MB] || Temperature_Puzzle_iPod_large.m4v (320x180) [27.9 MB] || Temperature_Puzzle_svs.mpg (512x288) [136.6 MB] || Temperature_Puzzle_portal.wmv (346x260) [38.8 MB] || ",
            "hits": 85
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        {
            "id": 10503,
            "url": "https://svs.gsfc.nasa.gov/10503/",
            "result_type": "Produced Video",
            "release_date": "2009-10-12T00:00:00-04:00",
            "title": "Melting Ice, Rising Seas",
            "description": "Sea level rise is an indicator that our planet is warming. Much of the world's population lives on or near the coast, and rising seas are something worth watching. Sea level can rise for two reasons, both linked to a warming planet. When ice on land, such as mountain glaciers or the ice sheets of Greenland or Antarctica, melt, that water contributes to sea level rise. And when our oceans get warmer - another indicator of climate change - the water expands, also making sea level higher. Using satellites, lasers, and radar in space, and dedicated researchers on the ground, NASA is studying the Earth's ice and water to better understand how sea level rise might affect us all.For complete transcript, click here. || Melting_Seas_ipod_640x480.03027_print.jpg (1024x576) [80.7 KB] || Melting_Seas_ipod_640x480_web.png (320x180) [156.6 KB] || Melting_Seas_ipod_640x480_thm.png (80x40) [16.6 KB] || Melting_Seas_appletv_1280x720.webmhd.webm (960x540) [67.9 MB] || Melting_Seas_H264_1280x720_30fps.mov (1280x720) [128.9 MB] || Melting_Seas_1280x720.mp4 (1280x720) [125.1 MB] || Melting_Seas_broll_prores.mov (1280x720) [4.4 GB] || Melting_Seas_youtube_1280x720.mov (1280x720) [69.1 MB] || Melting_Seas_appletv_1280x720.m4v (960x540) [160.0 MB] || Melting_Seas_ipod_640x480.m4v (640x360) [49.7 MB] || Melting_Seas_ipod_320x240.m4v (320x180) [21.1 MB] || Rising_Seas.wmv (346x260) [38.5 MB] || ",
            "hits": 26
        },
        {
            "id": 3619,
            "url": "https://svs.gsfc.nasa.gov/3619/",
            "result_type": "Visualization",
            "release_date": "2009-09-01T18:00:00-04:00",
            "title": "A Tour of the Cryosphere 2009",
            "description": "The cryosphere consists of those parts of the Earth's surface where water is found in solid form, including areas of snow, sea ice, glaciers, permafrost, ice sheets, and icebergs. In these regions, surface temperatures remain below freezing for a portion of each year. Since ice and snow exist relatively close to their melting point, they frequently change from solid to liquid and back again due to fluctuations in surface temperature. Although direct measurements of the cryosphere can be difficult to obtain due to the remote locations of many of these areas, using satellite observations scientists monitor changes in the global and regional climate by observing how regions of the Earth's cryosphere shrink and expand.This animation portrays fluctuations in the cryosphere through observations collected from a variety of satellite-based sensors. The animation begins in Antarctica, showing some unique features of the Antarctic landscape found nowhere else on earth. Ice shelves, ice streams, glaciers, and the formation of massive icebergs can be seen clearly in the flyover of the Landsat Image Mosaic of Antarctica. A time series shows the movement of iceberg B15A, an iceberg 295 kilometers in length which broke off of the Ross Ice Shelf in 2000. Moving farther along the coastline, a time series of the Larsen ice shelf shows the collapse of over 3,200 square kilometers ice since January 2002. As we depart from the Antarctic, we see the seasonal change of sea ice and how it nearly doubles the apparent area of the continent during the winter.From Antarctica, the animation travels over South America showing glacier locations on this mostly tropical continent. We then move further north to observe daily changes in snow cover over the North American continent. The clouds show winter storms moving across the United States and Canada, leaving trails of snow cover behind. In a close-up view of the western US, we compare the difference in land cover between two years: 2003 when the region received a normal amount of snow and 2002 when little snow was accumulated. The difference in the surrounding vegetation due to the lack of spring melt water from the mountain snow pack is evident.As the animation moves from the western US to the Arctic region, the areas affected by permafrost are visible. As time marches forward from March to September, the daily snow and sea ice recede and reveal the vast areas of permafrost surrounding the Arctic Ocean.The animation shows a one-year cycle of Arctic sea ice followed by the mean September minimum sea ice for each year from 1979 through 2008. The superimposed graph of the area of Arctic sea ice at this minimum clearly shows the dramatic decrease in Artic sea ice over the last few years.While moving from the Arctic to Greenland, the animation shows the constant motion of the Arctic polar ice using daily measures of sea ice activity. Sea ice flows from the Arctic into Baffin Bay as the seasonal ice expands southward. As we draw close to the Greenland coast, the animation shows the recent changes in the Jakobshavn glacier. Although Jakobshavn receded only slightly from 1964 to 2001, the animation shows significant recession from 2001 through 2009. As the animation pulls out from Jakobshavn, the effect of the increased flow rate of Greenland costal glaciers is shown by the thinning ice shelf regions near the Greenland coast.This animation shows a wealth of data collected from satellite observations of the cryosphere and the impact that recent cryospheric changes are making on our planet.For more information on the data sets used in this visualization, visit NASA's EOS DAAC website.Note: This animation is an update of the animation 'A Short Tour of the Cryosphere', which is itself an abridged version of the animation 'A Tour of the Cryosphere'. The popularity of the earlier animations and their continuing relevance prompted us to update the datasets in parts of the animation and to remake it in high definition. In certain cases, our experiences in using the earlier work have led us to tweak the presentation of some of the material to make it clearer. Our thanks to Dr. Robert Bindschadler for suggesting and supporting this remake. || ",
            "hits": 30
        },
        {
            "id": 3372,
            "url": "https://svs.gsfc.nasa.gov/3372/",
            "result_type": "Visualization",
            "release_date": "2006-09-30T00:00:00-04:00",
            "title": "Loop of AMSR-E Daily Arctic Sea Ice  from Aug 2005 to Aug 2006",
            "description": "Sea ice is frozen seawater floating on the surface of the ocean. Some sea ice is permanent, persisting from year to year, and some is seasonal, melting and refreezing from season to season. Sea ice is almost always in motion, reacting to ocean currents and to winds. The AMSR-E instrument on the Aqua satellite acquires high resolution measurements of the 89 GHz brightness temperature near the poles. Because this is a passive microwave sensor and independent of atmospheric effects, this sensor is able to observe the entire polar region every day, even through clouds and snowfalls. This animation of AMSR-E 89 GHz brightness temperature in the northern hemisphere during late 2005 and early 2006 clearly shows the dynamic motion of the ice as well as its seasonal expansion and contraction. This animation shows the seasonal advance and retreat of sea ice over the Arctic from 8/5/2005 through 8/4/2006. The false color of the sea ice, derived from the AMSR-E 6.25 km 89 GHz brightness temperature, highlights the fissures in the sea ice by showing warmer areas of ice in a deeper blue and colder areas of sea ice in a brighter white. The sea ice extent is defined by a three-day moving average of the AMSR-E 12.5 km sea ice concentration, showing as ice all areas having a sea ice concentration greater than 15%. || ",
            "hits": 28
        },
        {
            "id": 3373,
            "url": "https://svs.gsfc.nasa.gov/3373/",
            "result_type": "Visualization",
            "release_date": "2006-09-30T00:00:00-04:00",
            "title": "Zoom from Jakobshavn Glacier with AMSR-E Daily Sea Ice and MODIS Daily Snow Cover",
            "description": "Beginning from a view of Greenland's Jakobshavn glacier, this animation shows motion of sea ice and snow cover over the Arctic from 10/1/2002 through 6/23/2003 as the camera pulls out to frame the full globe. The false color of the sea ice is derived from the AMSR-E 6.25 km brightness temperature. The sea ice extent is defined by AMSR-E 12.5 km sea ice concentration, identifying all regions having a sea ice concentration of greater than 15%. Because AMSR-E is a passive microwave sensor that functions independently from atmospheric effects, this sensor is able to observe the entire polar region every day, even through clouds and snowfalls. || ",
            "hits": 14
        },
        {
            "id": 3355,
            "url": "https://svs.gsfc.nasa.gov/3355/",
            "result_type": "Visualization",
            "release_date": "2006-05-20T23:55:00-04:00",
            "title": "A Short Tour of the Cryosphere",
            "description": "A newer version of this animation is available here.This narrated, 5-minute animation shows a wealth of data collected from satellite observations of the cryosphere and the impact that recent cryospheric changes are making on our planet. This is a shorter version of a narrated, 7 1/2 minute animation entitled  'A Tour of the Cryosphere'.See the above link for a detailed description of the full animation.Two sections have been removed from the original animation: one showing a flyby of the South Pole station and glaciers feeding the Ross Ice Shelf and one showing solar data related to the Earth's energy balance.For more information on the data sets used in this visualization, visit NASA's EOS DAAC website. || ",
            "hits": 26
        },
        {
            "id": 3181,
            "url": "https://svs.gsfc.nasa.gov/3181/",
            "result_type": "Visualization",
            "release_date": "2005-12-04T23:55:00-05:00",
            "title": "A Tour of the Cryosphere",
            "description": "A new HD version of this animation is available here.Click here to go to the media download section.The cryosphere consists of those parts of the Earth's surface where water is found in solid form, including areas of snow, sea ice, glaciers, permafrost, ice sheets, and icebergs. In these regions, surface temperatures remain below freezing for a portion of each year. Since ice and snow exist relatively close to their melting point, they frequently change from solid to liquid and back again due to fluctuations in surface temperature. Although direct measurements of the cryosphere can be difficult to obtain due to the remote locations of many of these areas, using satellite observations scientists monitor changes in the global and regional climate by observing how regions of the Earth's cryosphere shrink and expand.This animation portrays fluctuations in the cryosphere through observations collected from a variety of satellite-based sensors. The animation begins in Antarctica, showing ice thickness ranging from 2.7 to 4.8 kilometers thick along with swaths of polar stratospheric clouds. In a tour of this frozen continent, the animation shows some unique features of the Antarctic landscape found nowhere else on earth. Ice shelves, ice streams, glaciers, and the formation of massive icebergs can be seen. A time series shows the movement of iceberg B15A, an iceberg 295 kilometers in length which broke off of the Ross Ice Shelf in 2000. Moving farther along the coastline, a time series of the Larsen ice shelf shows the collapse of over 3,200 square kilometers ice since January 2002. As we depart from the Antarctic, we see the seasonal change of sea ice and how it nearly doubles the size of the continent during the winter.From Antarctica, the animation travels over South America showing areas of permafrost over this mostly tropical continent. We then move further north to observe daily changes in snow cover over the North American continent. The clouds show winter storms moving across the United States and Canada, leaving trails of snow cover behind. In a close-up view of the western US, we compare the difference in land cover between two years: 2003 when the region received a normal amount of snow and 2002 when little snow was accumulated. The difference in the surrounding vegetation due to the lack of spring melt water from the mountain snow pack is evident.As the animation moves from the western US to the Arctic region, the areas effected by permafrost are visible. In December, we see how the incoming solar radiation primarily heats the Southern Hemisphere. As time marches forward from December to June, the daily snow and sea ice recede as the incoming solar radiation moves northward to warm the Northern Hemisphere.Using satellite swaths that wrap the globe, the animation shows three types of instantaneous measurements of solar radiation observed on June 20, 2003: shortwave (reflected) radiation, longwave (thermal) radiation and net flux (showing areas of heating and cooling). Correlation between reflected radiation and clouds are evident. When the animation fades to show the monthly global average net flux, we see that the polar regions serve to cool the global climate by radiating solar energy back into space throughout the year.The animation shows a one-year cycle of the monthly average Arctic sea ice concentration followed by the mean September minimum sea ice for each year from 1979 through 2004. A red outline indicates the mean sea ice extent for September over 22 years, from 1979 to 2002. The minimum Arctic sea ice animation clearly shows how over the last 5 years the quantity of polar ice has decreased by 10 - 14% from the 22 year average.While moving from the Arctic to Greenland, the animation shows the constant motion of the Arctic polar ice using daily measures of sea ice activity. Sea ice flows from the Arctic into Baffin Bay as the seasonal ice expands southward. As we draw close to the Greenland coast, the animation shows the recent changes in the Jakobshavn glacier. Although Jakobshavn receded only slightly from 1042 to 2001, the animation shows significant recession over the past three years, from 2002 through 2004.This animation shows a wealth of data collected from satellite observations of the cryosphere and the impact that recent cryospheric changes are making on our planet.For more information on the data sets used in this visualization, visit NASA's EOS DAAC website. || ",
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