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Global Biosphere

auteur: Nasa/Novapix

référence: t-glb50-00107

Image Size 300 DPI: 37 * 22 cm

This SeaWiFS image of our world depicts the global biosphere—the ocean's long-term average phytoplankton chlorophyll concentration acquired between September 1997 and August 2000 combined with the SeaWiFS-derived Normalized Difference Vegetation Index over land during July 2000. This image shows where there is more or less plant life on our planet. On land, the dark greens show where there is abundant vegetation and tans show relatively sparse plant cover. In the oceans, red, yellow, and green pixels show dense phytoplankton blooms while blues and purples show where there is very little of the microscopic marine plant.

Keywords for this photo:

2000 - CLIMATE - EARTH - EARTH FROM SPACE - GLOBAL VIEW - OCEAN - PHYTOPLANKTON - PLANET - PLANISPHERE - PLANT - SATELLITE IMAGE - VEGETATION -