X-BAND TERRASAR-X AND COSMO-SKYMED SAR DATA FOR BARE SOIL PARAMETERS ESTIMATION

被引:3
|
作者
Gorrab, Azza [1 ]
Zribi, Mehrez [1 ]
Baghdadi, Nicolas
Mougenot, Bernard [1 ]
Chabaane, Zohra Lili
机构
[1] CNRS UPS IRD CNES, CESBIO, F-31401 Toulouse 9, France
来源
2014 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2014年
关键词
Soil moisture; roughness; TerraSAR-X; COSMO-Sky-Med; RADAR DATA; AGRICULTURAL FIELDS; SURFACE PARAMETERS; MOISTURE; SENSITIVITY; ROUGHNESS;
D O I
10.1109/IGARSS.2014.6947165
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The goal of this paper is to analyze the potential of COSMO-SkyMed and TerraSAR-X SAR measurements over bare soils in order to estimate correctly soil parameters. We analyzed statistically the relationships between X-SAR backscattering signals function of soil moisture and different roughness parameters (the root mean square height Hrms, the Zs parameter and the Zg parameter) at HH polarization and for an incidence angle about 35.5 degrees. Results have shown a high sensitivity of real radar data to the two soil parameters: roughness and moisture. A linear relationship is obtained between volumetric soil moisture and radar signal with the strongest correlation observed with gravimetric moisture measurements. A logarithmic correlation is observed between backscattering coefficient and all roughness parameters. The highest dynamic sensitivity is obtained with Zg parameter.
引用
收藏
页数:4
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