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V01754
Réf V01754 : Researching Coral Reefs from Space (Poster)
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DIMENSIONS
TIRAGE Haute Définition
TRANSPARENT*
40 x 60 cm
23.00 €
20.70 €
125.00 €
50 x 75 cm
29.90 €
26.91 €
140.00 €
60 x 90 cm
45.00 €
40.50 €
170.00 €
80 x 120 cm
75.00 €
220.00 €
100 x 150 cm
109.00 €
290.00 €
*Le transparent est un support translucide
que l'on applique devant un néon
Thème :
Terre vue de l'espace - Iles - Récifs
Description
:
(La description de cette image n'existe qu'en anglais)
Part of the problem in studying the health of the world's coral is the lack of a comprehensive database. Many experts consider the current standard to be imprecise, incomplete, and unreliable for the kind of detailed, modern analysis that's required for monitoring coral health around the world. But using a new program written in the computer language Perl for the World Wide Web, developers at the Goddard Space Flight Center have designed a browsable system that can access a wide range of data. The program is dynamic in the sense that as researchers collect varying resolutions and types of data from different parts of the world, the database can store and cross-reference all the available information. Heavily studied regions will have detailed and complex layers of data available, while less well observed areas will simply be catalogued with as much information as is available. As the system evolves, it's expected to develop into a huge data repository regarding coral around the planet. As a natural by-product it will also collect other vital oceanographic information gathered at varying levels of spatial resolution.The searchable coral database is still a work in progress, but it's available for consideration at The following poster shows how several instruments with different spatial resolutions can be used for studying coral reefs. Goddard's scientific and Visualization Studio developed the poster in collaboration with members of the Science Team. One year, 900 locations, thousands of coral reefs. That's the tally of NASA's Landsat 7 satellite as it continues to deliver cutting edge images and information about the Earth. Data being presented this week at an international conference in Indonesia is the first assessment of the physical condition of major reefs from the the new Landsat 7 collection of images. More than 5000 coral reef scenes have been amassed in the first year of Landsat 7's operation. In that collection, many reefs have been seen more than once, offering scientists an opportunity to study seasonal variations as well as other changes in the reefs caused by hurricanes and climate change.
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Dernière Mise à Jour lundi 20 mai 2024