衛星搭載SARによる湿雪域の積雪水文パラメータ推定手法の開発に関する検討   :   Study for developing algorithm to estimate snow hydrological parameters in wet snow areas using satellite-based SAR images 

作成者 田殿, 武雄, 深見, 和彦, 兒玉, 法彰, Shi, Jiancheng
日本十進分類法 (NDC) 450
内容 研究概要:The objective of this study is to develop an algorithm for quantitatively estimating snow hydrological parameters using a Synthetic Aperture Radar (SAR) mounted on a satellite and a numerical scattering model. Simultaneous RADARSAT SAR observations were carried out during the winter seasons of 1996 to 1998. The study area is located in the Hokuriku District, Niigata Prefecture, Japan, that is well known for having wet snow with a complicated layer structure from the beginning of the winter season. In previous studies, we sought to estimate the distributions of snow depth and surface roughness using these multi-temporal RADARSAT images. However, snow depths over 20cm were underestimated because the extinction effects at C-band microwave were too large. In this study, we develop an algorithm to estimate distributions of snow density and roughness using observation datasets with some parameterization techniques and assumptions. Furthermore, we show the possibility of inferring snow depths from combined parameters estimated with a L-band SAR image at test sites.
公開者 千葉大学環境リモートセンシング研究センター
コンテンツの種類 研究報告書 Research Paper
ファイル形式 application/pdf
NCID AA11594897
掲載誌情報 共同利用研究会報告集 page.17-22 (2002)
情報源 水文過程のリモートセンシングとその応用に関するワークショップ, Center for Environmental Remote Sensing,Chiba University Symposium Report
言語 日本語
著者版フラグ publisher

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