Skip all navigation and jump to content Jump to site navigation Jump to section navigation.
NASA Logo - Goddard Space Flight Center + Visit NASA.gov
HOME PROJECTS RESOURCES SEARCH MAP

+ Advanced Search
Home
Home
View Most Recently Released Imagery
View Gallery of Imagery: A topical collection of SVS Imagery
Search Imagery by the keywords assigned to it
Search Imagery by the instruments that supplied data for a visualization product
Search Imagery by the series of visualizations that have been produced
Search Imagery by the scientist providing the data used in a visualization product
Search Imagery by the animator that created the product
Search Imagery by the identification number assigned to the visualization product
See other search options
Learn about the SVS Image Server
  + About the Server
  + Animation List
  + How to Use the Server
blank image
Previous Animation
Next Animation
Landsat 7 Looks at Coral Reefs: (1 of 2)
Coral forms off shore from volcanic islands in tropical latitudes, developing a barrier reef that's separated by a growing lagoon.But over time, while the surrounding ocean wears away the main body of the island, the coral ring remains.

These elegant whorls of color are atolls, enclosed coral reefs almost always surrounding a lagoon. Generally speaking, atolls are the products of volcanic islands that have eroded away.    These elegant whorls of color are atolls, enclosed coral reefs almost always surrounding a lagoon. Generally speaking, atolls are the products of volcanic islands that have eroded away.
Duration: 4.0 seconds
Available formats:
  320x240 (30 fps) MPEG-1   672 KB
  160x80       PNG           5 KB
  80x40         PNG           1 KB
  320x266     JPEG         4 KB
How to play our movies


Landsat 7 "sees" the Earth differently than a camera. By detecting light in discretely separate ranges of color or more accurately, electromagnetic bands the instrument can tailor images to highlight particular features being studied by experts. The different shades in these images highlight various features specific to each coral colony. Patches of bright red show places where coral reefs are actively populated with living organisms.    Landsat 7 "sees" the Earth differently than a camera. By detecting light in discretely separate ranges of color or more accurately, electromagnetic bands the instrument can tailor images to highlight particular features being studied by experts. The different shades in these images highlight various features specific to each coral colony. Patches of bright red show places where coral reefs are actively populated with living organisms.

Available formats:
  1440 x 972       TIFF 221 KB
  160 x 80           PNG   4 KB
  320 x 216         JPEG 4 KB
  80 x 40             PNG   1 KB


Near infrared data instead makes some areas on the reef jump out in bright red relief. The near infrared band best gathers the electromagnetic signature of a thriving ecosystem.    Near infrared data instead makes some areas on the reef jump out in bright red relief. The near infrared band best gathers the electromagnetic signature of a thriving ecosystem.

Available formats:
  1440 x 972       TIFF 163 KB
  160 x 80           PNG   4 KB
  320 x 216         JPEG 4 KB
  80 x 40             PNG   1 KB


The different shades in these images highlight various features specific to each coral colony.    The different shades in these images highlight various features specific to each coral colony.

Available formats:
  1440 x 972       TIFF 223 KB
  160 x 80           PNG   4 KB
  320 x 216         JPEG 4 KB
  80 x 40             PNG   1 KB

Animation Number:2008
Animator:Stuart A. Snodgrass (Lead)
Studio:SVS
Completed:2000-10-23
Scientist:Serge Andrefouet (University of South Florida)
Instrument:Landsat-7/ETM+
Data Collected:1999, 2000
Series:Landsat 7 Coral Reefs
Video:SVS2000-0019 *
Goddard TV Tape:G2000-097
Keywords:
DLESE >> Biological oceanography
SVS >> Coral Reefs
 
 
Please give credit for this item to
NASA/Goddard Space Flight Center
Scientific Visualization Studio


*Please note: the SVS does not fulfill requests for copies of the tapes in our library. On some of our animation pages, there is a direct link to a video distribution service from which tapes, handled by the Public Affairs Office (PAO)/Goddard TV, including some of our animations may be ordered. General information on this service can be found here.


Back to Top

USA.gov logo - the U.S. Government's official Web portal. + Privacy Policy and Important Notices
+ Reproduction Guidelines 		NASA NASA Official:
SVS Contact:
Curator: