Modeling Forest Emissivity at L-Band and a Comparison With Multitemporal Measurements

Author

Della Vecchia, A. ; Ferrazzoli, P. ; Wigneron, J.-P. ; Grant, J.P.

Author_Institution

Rome Univ., Rome

Volume

4

Issue

4

fYear

2007

Firstpage

508

Lastpage

512

Abstract

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 ldquoBray 2004rdquo 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.

Keywords

moisture; soil; vegetation; Bray 2004 experiment; L-band; Les Landes forest; brightness temperature; discrete model; forest emissivity modeling; forest litter; ground measurements; multitemporal radiometric data; temporal variations; Brightness temperature; Electromagnetic modeling; L-band; Microwave radiometry; Poles and towers; Radiometers; Soil measurements; Space technology; Temperature measurement; Testing; Forests; litter; microwave radiometry; soil moisture;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2007.900687

Filename

4317527