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SAR）を用いた氷河流動観測が質・量ともに向上し，新たな知見が得られつつある．本稿では，非サージ型氷河の理解にも重要な氷河表面速度と氷河の水理・水文環境の変動を概観するとともに，これまで提起されたサージ発生メカニズムとその問題点を解説する．次に，SARによる氷河流動観測技術の進展と最近のサージ検出事例を紹介し，サージ発生メカニズムに関する最新の知見を議論する．最後に，衛星SARによる今後の氷河流動観測について述べる．"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420001326237643136","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"90809287"},{"@type":"NRID","@value":"1000090809287"},{"@type":"NRID","@value":"9000345225104"},{"@type":"NRID","@value":"9000018811504"},{"@type":"NRID","@value":"9000347190463"},{"@type":"NRID","@value":"9000331445011"},{"@type":"NRID","@value":"9000351082225"},{"@type":"NRID","@value":"9000331878403"},{"@type":"NRID","@value":"9000347190181"},{"@type":"NRID","@value":"9000415346669"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/306a5017"}],"foaf:name":[{"@language":"en","@value":"ABE Takahiro"},{"@language":"ja","@value":"阿部 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