Analysis of energy fluxes estimations over Italy using time-differencing models based on thermal remote sensing data
- Authors: Cammalleri, C; Anderson, MC; Ciraolo, G; D’Urso, G; Kustas, WP; Hain, C; Schultz, L; Mecikalski, JR
- Publication year: 2012
- Type: Capitolo o Saggio (Capitolo o saggio)
- OA Link: http://hdl.handle.net/10447/64043
Abstract
Large area estimations of land surface fluxes can be a useful operational tool for up-scaling local measurements and can serve as an upper-boundary condition for higher spatial resolution applications. Given hourly measurements of radiometric surface temperature from a geostationary satellite, it is possible to derive the partitioning of energy fluxes based on the influence of the evapotranspiration process on morning surface temperature rise. In this work, the Atmosphere-Land Exchange Inverse (ALEXI) model and the Dual Temperature Difference (DTD) approach were applied in order to relate the sensible heat flux to time-differential remote observations of surface temperature obtained from Meteosat satellite data. Copyright © 2012 IAHS Press.