Modeling forest emissivity at L-band and a comparison with multitemporal measurements

被引：43

作者：

Della Vecchia, A. ^{[1
]}

Ferrazzoli, P.

Wigneron, J.-P.

Grant, J. P.

机构：

[1] Univ Roma Tor Vergata, Dept Comp Sci Syst & Ind Engn DISP, I-00133 Rome, Italy

[2] INRA, Unit Ecol Fonct & Phys Environm, F-33883 Villenave Dornon, France

[3] Vrije Univ Amsterdam, NL-1081 HV Amsterdam, Netherlands

来源：

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2007年 / 4卷 / 04期

关键词：

forests; litter; microwave radiometry; soil moisture;

D O I：

10.1109/LGRS.2007.900687

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：

This letter describes recent advances in modeling forest emissivity at L-band. The formulation is based on a previously developed discrete model and includes a new representation of forest litter. Comparisons with multitemporal radiometric data collected in the framework of the "Bray 2004" experiment, which was carried out within Les Landes forest, are shown and discussed. Input variables are given by using detailed ground measurements. In general, the model reproduces both absolute values and temporal variations of measured brightness temperature. The contribution of the litter to overall emission was found to be important.

引用

页码：508 / 512

页数：5

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