DOI: 10.5194/hess-20-2467-2016
Scopus记录号: 2-s2.0-84976292839
论文题名: Rainfall erosivity in catchments contaminated with fallout from the Fukushima Daiichi nuclear power plant accident
作者: Laceby J ; P ; , Chartin C ; , Evrard O ; , Onda Y ; , Garcia-Sanchez L ; , Cerdan O
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2016
卷: 20, 期: 6 起始页码: 2467
结束页码: 2482
语种: 英语
Scopus关键词: Accidents
; Catchments
; Cesium
; Fallout
; Hurricanes
; Nuclear energy
; Nuclear power plants
; Nuclear reactor accidents
; Rain
; Runoff
; Soils
; Storms
; Contaminant transfer
; Daily precipitations
; Fukushima Dai-ichi Nuclear Power Plant accidents
; Fukushima dai-ichi nuclear power plants
; Meteorological station
; Precipitation regimes
; Rainfall erosivity
; Spatial heterogeneity
; Precipitation (meteorology)
; catchment
; erosivity
; fallout
; nuclear power plant
; pollutant transport
; pollution monitoring
; precipitation intensity
; radionuclide
; spatial distribution
; tropical cyclone
; water erosion
; Abukuma River
; Fukushima [Tohoku]
; Honshu
; Japan
; Tohoku
英文摘要: The Fukushima Daiichi nuclear power plant (FDNPP) accident in March 2011 resulted in the fallout of significant quantities of radiocesium over the Fukushima region. After reaching the soil surface, radiocesium is quickly bound to fine soil particles. Thereafter, rainfall and snowmelt run-off events transfer particle-bound radiocesium downstream. Characterizing the precipitation regime of the fallout-impacted region is thus important for understanding post-deposition radiocesium dynamics. Accordingly, 10 min (1995-2015) and daily precipitation data (1977-2015) from 42 meteorological stations within a 100 km radius of the FDNPP were analyzed. Monthly rainfall erosivity maps were developed to depict the spatial heterogeneity of rainfall erosivity for catchments entirely contained within this radius. The mean average precipitation in the region surrounding the FDNPP is 1420 mm yr-1 (SD 235) with a mean rainfall erosivity of 3696 MJ mm ha-1 h-1 yr-1 (SD 1327). Tropical cyclones contribute 22 % of the precipitation (422 mm yr-1) and 40 % of the rainfall erosivity (1462 MJ mm ha-1 h-1 yr-1 (SD 637)). The majority of precipitation (60 %) and rainfall erosivity (82 %) occurs between June and October. At a regional scale, rainfall erosivity increases from the north to the south during July and August, the most erosive months. For the remainder of the year, this gradient occurs mostly from northwest to southeast. Relief features strongly influence the spatial distribution of rainfall erosivity at a smaller scale, with the coastal plains and coastal mountain range having greater rainfall erosivity than the inland Abukuma River valley. Understanding these patterns, particularly their spatial and temporal (both inter- and intraannual) variation, is important for contextualizing soil and particle-bound radiocesium transfers in the Fukushima region. Moreover, understanding the impact of tropical cyclones will be important for managing sediment and sediment-bound contaminant transfers in regions impacted by these events. © Author(s) 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78811
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Unité Mixte de Recherche 8212 (CEA-CNRS-UVSQ/IPSL), Université Paris-Saclay, Gif-sur-Yvette, France; Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université catholique de Louvain, Louvain, Belgium; Graduate School of Life and Environmental Sciences, Center for Research in Isotopes and Environmental Dynamics (CRIED), University of Tsukuba, Tsukuba, Japan; Laboratoire de Biogéochimie, Biodisponibilité et Transferts de Radionucléides, IRSN/PRP-ENV/SERIS/L2BT, Cadarache, France; Bureau de Recherches Géologiques et Minières, Orléans, France
Recommended Citation:
Laceby J,P,, Chartin C,et al. Rainfall erosivity in catchments contaminated with fallout from the Fukushima Daiichi nuclear power plant accident[J]. Hydrology and Earth System Sciences,2016-01-01,20(6)