Multispectral remote-sensing contribution to land surface evaporation

Bhaskar J. Choudhury

doi:10.1117/12.21387

1 December 1990 Multispectral remote-sensing contribution to land surface evaporation

Bhaskar J. Choudhury

Proceedings Volume 1300, Remote Sensing of the Biosphere; (1990) https://doi.org/10.1117/12.21387
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

The global water cycle is perhaps the most important of all the biogeochemical cycles and evaporation, which is a significant component of the water cycle, is also linked with the energy and carbon cycles. Long-term evaporation over large areas has generally been computed as the difference of precipitation and river runoff. Analysis of short-term evaporation rate and its spatial pattern, however, is extremely complex, and multispectral remotely sensed data could aid in such analysis. Multispectral data considered here are visible and near-infrared reflectances, infrared surface temperature and the 37 GHz brightness temperatures. These observations are found to be not totally independent of each other. A few of their relationships are established and discussed considering physically-based models.

Citation Download Citation

Bhaskar J. Choudhury "Multispectral remote-sensing contribution to land surface evaporation", Proc. SPIE 1300, Remote Sensing of the Biosphere, (1 December 1990); https://doi.org/10.1117/12.21387

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