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Retrieving snow water equivalence on C- and L-band SAR data for dry snow

机译:检索雪水等当量,用于干雪的C-和L波段SAR数据

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The airborne synthetic aperture radar (SAR) data were acquired by EMISAR (Cand L-band) of Technical University of Denmark in Northern Finland during EMAC'95 (European Multisensor Airborne Campaign-95). The multifrequency polarimetric SAR data have been analyzed on retrieving snow water equivalence. The authors have modeled the response of the backscattering coefficient to snow water equivalence. The correlation between the measured data and model are computed. The results indicate that at C-band (1) dry snow cover can be discriminated from a bare surface and short vegetation; (2) snow water equivalence may be estimated by using semi-empirical models when the snow is dry.
机译:在芬兰北部丹麦技术大学的Emisar(Cand L-Band)在Emac'95(欧洲多人多传感器机载运动-95)中获得了空中合成孔径雷达(SAR)数据。在检索雪水当量时已经分析了多频性极化SAR数据。作者已经建模了对散水系数的反应响应与雪水等效。计算测量数据与模型之间的相关性。结果表明,在C频段(1)干燥的雪覆盖可以与裸露的表面和短植被区别; (2)当雪干燥时,可以使用半经验模型估算降水量。

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