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タイトル広葉樹森林集水域における空間線量率の分布とその地形との関係
翻訳タイトルCatchment-scale distribution of radiocesium air dose rate in a mountainous deciduous forest and its relation to topography
情報提供機関Elsevier
著者安藤 麻里子
著者小嵐 淳
著者竹内 絵里奈
著者都築 克紀
著者西村 周作
著者松永 武
掲載日2015-09
言語eng
ページ数1p.-7p.
種別report
内容記述We collected a large amount of radiocesium air dose rate data by mountain-walking with a small gamma-ray survey system, KURAMA-II, to create an air dose rate map of a mountainous deciduous forest that received radiocesium from the Fukushima Dai-ichi Nuclear Power Plant accident. Measurements were conducted in a small stream catchment 0.6 km2 in size in August and September 2013, and the relationship between air dose rates and the mountainous topography was examined. Air dose rates increased with elevation, suggesting that more radiocesium was deposited on ridges, and that it had remained there for 2.5 years with no significant migration due to soil erosion or water drainage. Slope aspect also strongly affected air dose rates. By the continuous measurement using KURAMA-II, we describe the variation in air dose rates in a mountainous area and suggest that it is important to consider topography when selecting sampling points to estimating dose rates or contaminant deposition.
情報源JOPSS関連URL関連URL
URIhttps://f-archive.jaea.go.jp/dspace/handle/faa/211421