Remote sensing : hydrology

Remote sensing in physical geography : a twenty-first-century-perspective. Special issue

Auteur(s) et Affiliation(s)



Description :
Over the last 10 years, the study of land surface hydrology using remote sensing techniques has advanced greatly with the launch of NASA’s Earth Observing System (EOS) and other research satellite platforms, and with the development of more sophisticated retrieval algorithms. Most of the constituent variables in the land surface water balance (eg, precipitation, evapotranspiration, snow and ice, soil moisture, and terrestrial water storage variations) are now observable at varying spatial and temporal resolutions and accuracy via remote sensing. The AA. evaluate the current status of estimates of each of these variables, as well as river discharge, the direct estimation of which is not yet possible. Although most of the constituent variables are observable by remote sensing, attempts to close the surface water budget from remote sensing alone have generally been unsuccessful, suggesting that current generation sensors and platforms are not yet able to provide hydrologically consistent observations of the land surface water budget at any spatial scale.


Type de document :
Article de monographie

Source :
Progress in physical geography, issn : 0309-1333, 2009, vol. 33, n°. 4, p. 490-509, nombre de pages : 20, Références bibliographiques : 7,5 p.

Date :
2009

Editeur :
Pays édition : Royaume-Uni, London, Sage Publications