A verification of the 'triangle' method for obtaining surface soil water content and energy fluxes from remote measurements of the Normalized Difference Vegetation Index (NDVI) and surface e

Autor:	W. P. Kustas, R. R. Gillies, K. S. Humes
Rok vydání:	1997
Předmět:	Radiometer Soil water General Earth and Planetary Sciences Environmental science Radiometry Enhanced vegetation index Surface finish Atmospheric sciences Water content Surface water Normalized Difference Vegetation Index Remote sensing
Zdroj:	International Journal of Remote Sensing. 18:3145-3166
ISSN:	1366-5901 0143-1161
Popis:	An inversion procedure is presented for estimating surface soil water content (as surface moisture availability, Mo ), fractional vegetation cover ( Fr ), and the instantaneous surface energy fluxes, using remote multispectral measurements made from an aircraft. The remotely derived values of these fluxes and the soil water content are compared with field measurements from two intensive field measurement programs FIFE and MONSOON '90. The measurements from the NS001 multispectral radiometer were reduced to fractional vegetation cover, surface soil water content (surface moisture availability), and turbulent energy fluxes, with the application of a soil vegetation atmosphere transfer (SVAT) model. A further step in the inversion process involved 'stretching' the SVAT results between pre-determined boundaries of the distribution of normalized difference vegetation index (NDVI) and surface radiant temperature ( To ). Comparisons with measurements at a number of sites from two field experiments show standard ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::127e73b7b5b6de7e4158796e702a892e https://doi.org/10.1080/014311697217026 Zobrazit plný text záznamu