PWRI微波散射仪对积雪微波后向散射特性的初步观测研究

Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium Pub Date : 1993-08-18 DOI:10.1109/IGARSS.1993.322106

K. Fukami, K. Masukura, T. Koike, I. Hasegawa

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引用次数: 0

摘要

利用PWRI多极化散射仪对日本海沿岸天然层状积雪的c波段微波观测进行了野外试验。后向散射系数与雪水当量/含水率之间的关系尚不能确定。为了引起积雪的体积散射，作者应用了退极化比，发现1992年观测的退极化比随雪水当量的增加而增加，这表明利用多极化资料观测积雪是可能的。

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Preliminary observational study on microwave backscattering characteristics of snow using the PWRI microwave scatterometer

The authors made a field experiment of microwave observations (C-band) of natural-layered snow in a coastal area near to the Japan Sea, using the PWRI multi-polarization scatterometer. Any significant relationship between backscattering coefficient and snow water equivalent/moisture content could not be confirmed. To elicit volume scattering in snow, the authors applied the depolarization ratio and found the ratio had a general tendency to increase with snow water equivalent for observations made in 1992, which suggested the possibility of the utilization of multi-polarization data to observe snowcover.<>

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Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium

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