Simulating L-band emission of coniferous forests using a discrete model and a detailed geometrical representation

被引:18
作者
Della Vecchia, Andrea [1 ]
Saleh, Kauzar
Ferrazzoli, Paolo
Guerriero, Leila
Wigneron, Jean-Pierre
机构
[1] Univ Roma Tor Vergata, Dipartimento Informat Sistemi & Prod, I-00133 Rome, Italy
[2] Univ Valencia, Dipartimento Termodinam, E-46100 Valencia, Spain
[3] INRA, EPHYSE, F-33883 Villenave Dornon, France
关键词
forests; microwave radiometry; modeling;
D O I
10.1109/LGRS.2006.873230
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
A discrete model, based on the radiative transfer theory, is used to simulate coniferous forest emissivity at L-band. Inputs to the model are. given by using a detailed geometrical representation of Les Landes forest. Simulated emissivities are compared against EuroSTARRS campaign measurements, which were made over the same forest at nominally vertical polarization and several angles. The model has also been used to investigate the sensitivity of L-band radiometers to soil moisture under forests. Results of this investigation indicate that the soil contribution to emission is potentially appreciable, even under developed forests. This may. be a useful result, in view of future satellite missions, such as SMOS and HYDROS.
引用
收藏
页码:364 / 368
页数:5
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