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Detection of vegetation change using reconnaissance imagery


Nancy H. F. French, fax +1/734-6232501, e-mail
1Information about the declassified (DISP) imagery used in this analysis can be found at: http://edc pL/glis/hyper/guide/disp


Vegetation occurs at its highest elevations on equatorial mountains. Inspection of archival and recent high-resolution reconnaissance imagery of tropical mountains shows, in all cases, features indicating an increase in the elevation of mountain vegetation zones and an increase in vigour in the high-elevation vegetation. These changes are consistent with an increased plant performance from increased levels of carbon dioxide in the atmosphere as well as with a warmer or more favourable climate.