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論文投稿 Trial of volcanic ash detection using Pi-SAR-L2

作成年度 2013 年度
論文名 Trial of volcanic ash detection using Pi-SAR-L2
論文名(和訳)
論文副題
発表会
誌名 APSAR
巻・号・回
発表年月日 2013/09/01
所属研究室/機関名 著者名(英名)
JAXAManabu Watanabe
JAXANoriyuki Kawano
Public Works Research InstituteTadanori Ishizuka
Public Works Research InstituteYukinori Nowa
Public Works Research InstituteTakeshi Shimizu
抄録
Pi-SAR-L2 data were investigated for their potential to detect areas covered by volcanic ash. Simultaneous field measurement of the dielectric constant of the ash was carried out alongside the Pi-SAR-L2 observations. The measured parameters were inserted into a semi-theoretical two-layer scattering model to describe σ0 from the ash-covered volcanic rocks. It was found that σ0 obtained using Pi-SAR-L2 was well described by this model. The model also indicates that a sensitivity of a few dB is necessary to determine the distribution of volcanic ash cover, which depends on the original surface roughness and the thickness of the ash layer.
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