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Direct satellite inference of ecosystem light use efficiency for carbon exchange using MODIS on Terra and Aqua

Summary

Abstract of the paper presented to the IEEE International Geoscience and Remote Sensing Symposium (IGARSS). September 20-24, 2004. Anchorage, Alaska. 3: 2038-2041.

Understanding the dynamics of the global carbon cycle requires an accurate determination of the spatial and temporal distribution of photosynthetic CO2 uptake by terrestrial vegetation. Optimal photosynthetic function is negatively affected by stress factors that cause down-regulation (i.e., reduced rate of photosynthesis). Present approaches to determine ecosystem carbon exchange rely on meteorological data as inputs to models that predict the relative photosynthetic function in response to environmental conditions inducing stress (e.g., drought, high/low temperatures). (...)

Sector(s): 

Forests

Categorie(s): 

Conference and Presentation

Theme(s): 

Forestry Research

Departmental author(s): 

Drolet, Guillaume

Author(s)

MIDDLETON, Elizabeth M., Guillaume DROLET, K. Fred HUEMMRICH, Forrest G. HALL, Robert G. KNOX, Andy BLACK, Alan BARR, Alexei I. LYAPUSTIN, Janette C. GERVIN et Hank MARGOLIS

Year of publication :

2004

Format :

Paper

ISBN

0-7803-8742-2

Keywords :

écosystèmes et environnement, ecosystems and environment, light use efficiency, atmospheric correction

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