SMOS CALIBRATION AND VALIDATION OVER THE SALAR DE UYUNI

被引:3
|
作者
Escorihuela, M. J. [1 ]
Escorihuela, A. [1 ]
Richaume, P.
Kerr, Y. H.
机构
[1] IsardSAT, Barcelona 08042, Spain
关键词
SMOS; brightness temperature; dielectric constant; calibration; validation; Salar de Uyuni;
D O I
10.1109/IGARSS.2012.6351351
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 Salar de Uyuni is a large, flat and radiometrically homogeneous area. Its extent is several tenths the SMOS footprint and its emissivity is high and rather homogeneous except when flooded (about 3 months per year). It is located in a rather un-inhabitated area with no RFI. Therefore it provides a perfect calibration site for SMOS brightness temperature and the dielectric constant product validation. In this paper several calibration/validation issues were assessed: SMOS and AMSR-E brightness temperature cross-validation over the site, the influence of Full/Dual polarisation mode on SMOS angular signature and L2 dielectric constant product validation.
引用
收藏
页码:1124 / 1126
页数:3
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