ASSESSMENT OF SNOW DEPTH DISTRIBUTION IN DAM BASINS USING AIRBORNE LASER SCANNING-論文・刊行物検索

作成年度	2010年度
論文名	ASSESSMENT OF SNOW DEPTH DISTRIBUTION IN DAM BASINS USING AIRBORNE LASER SCANNING
論文名（和訳）	航空レーザースキャンを使用したダム流域における積雪深分布の把握
論文副題
発表会	20th IAHR International Symposium on ice 2010
誌名（No./号数）	Proceedings of The 20th International Symposium on Ice
発表年月日	2010/06/14 ～ 2010/06/18

所属研究室／機関名	著者名（英名）
水環境保全チーム	鳥谷部　寿人（TOYABE　Toshihito）
室蘭工業大学	中津川　誠（NAKATSUGAWA Makoto）
道央支所	石谷　隆始（ISHIYA　Takashi）
道央支所	菊地　渉（KIKUCHI　Wataru）
水環境保全チーム	山下　彰司（YAMASHITA　Shoji）

抄録
To clarify the estimation error of snow depth spatial distribution with different DEM mesh sizes、 airborne laser scanning during two periods (ground surface exposure and snow peak) and a snow depth survey were conducted in the Jozankei Dam catchment area 、in the Hokkaido、 region of northern Japan. []The results of these two investigations were compared for adequate evaluation of the method to determine the spatial distribution of snow depth.[]Our regression analysis for different topographic parameters of snow depth showed that the 50-m mesh provided a better fit、 while the conformity of the 5-m mesh was poor. In addition、 the snow water equivalent with the 50-m mesh demonstrated good compatibility with the results of the snow survey、 while the outcome for the 5-m mesh indicated that improvements are needed.

抄録

To clarify the estimation error of snow depth spatial distribution with different DEM mesh sizes、 airborne laser scanning during two periods (ground surface exposure and snow peak) and a snow depth survey were conducted in the Jozankei Dam catchment area 、in the Hokkaido、 region of northern Japan. [*]The results of these two investigations were compared for adequate evaluation of the method to determine the spatial distribution of snow depth.[*]Our regression analysis for different topographic parameters of snow depth showed that the 50-m mesh provided a better fit、 while the conformity of the 5-m mesh was poor. In addition、 the snow water equivalent with the 50-m mesh demonstrated good compatibility with the results of the snow survey、 while the outcome for the 5-m mesh indicated that improvements are needed.

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発表　ASSESSMENT OF SNOW DEPTH DISTRIBUTION IN DAM BASINS USING AIRBORNE LASER SCANNING

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発表 ASSESSMENT OF SNOW DEPTH DISTRIBUTION IN DAM BASINS USING AIRBORNE LASER SCANNING

発表　ASSESSMENT OF SNOW DEPTH DISTRIBUTION IN DAM BASINS USING AIRBORNE LASER SCANNING