Sensitivity of a bare soil microwave radiation at L and C-band to variation in soil moisture and soil temperature: The Huntsville '98 experiment

被引：0

作者：

Archer, F ^{[1
]}

Shutko, A ^{[1
]}

Coleman, T ^{[1
]}

Perez, A ^{[1
]}

机构：

[1] Alabama A&M Univ, Ctr Hydrol Soil Climatol & Remote Sensing, Normal, AL 35762 USA

来源：

IGARSS 2003: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS I - VII, PROCEEDINGS: LEARNING FROM EARTH'S SHAPES AND SIZES | 2003年

关键词：

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A comparative evaluation of the potential of L- and C-band passive microwave sensors in estimating soil moisture content was carried out. For this purpose, experimental data collected on a bare soil by ground-based radiometers, during the Huntsville'98 experiment have been used. The results show the sensitivity of radiation in the C-band (6 cm) and L-band (21 cm) to the changes in water content and soil temperature in bare soil. These data show that the primary parameter affecting the intensity of radiation/brightness temperature in bare soil is the soil moisture. Based on this sensitivity it was feasible to estimate the value of soil moisture without a priori data on the soil parameters. Comparisons of the data collected using different wavelength bands in the dynamic of soil moisture changes inside a fix antenna footprint are discussed. Additionally, analyses are given of the observed diurnal changes.

引用

页码：3401 / 3403

页数：3

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