DOI: 10.5194/hess-19-1371-2015
Scopus记录号: 2-s2.0-84924663256
论文题名: Quantifying sensitivity to droughts-an experimental modeling approach
作者: Staudinger M ; , Weiler M ; , Seibert J
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 3 起始页码: 1371
结束页码: 1384
语种: 英语
Scopus关键词: Drought
; Groundwater
; Runoff
; Annual precipitation
; Experimental modeling
; Hydrological droughts
; Hydrological modeling
; Meteorological drought
; Rainfall-runoff modeling
; Simulated discharges
; Temperature observations
; Catchments
; catchment
; discharge
; drought
; precipitation (climatology)
; rainfall-runoff modeling
; seasonality
; streamflow
; Europe
英文摘要: Meteorological droughts like those in summer 2003 or spring 2011 in Europe are expected to become more frequent in the future. Although the spatial extent of these drought events was large, not all regions were affected in the same way. Many catchments reacted strongly to the meteorological droughts showing low levels of streamflow and groundwater, while others hardly reacted. Also, the extent of the hydrological drought for specific catchments was different between these two historical events due to different initial conditions and drought propagation processes. This leads to the important question of how to detect and quantify the sensitivity of a catchment to meteorological droughts. To assess this question we designed hydrological model experiments using a conceptual rainfall-runoff model. Two drought scenarios were constructed by selecting precipitation and temperature observations based on certain criteria: one scenario was a modest but constant progression of drying based on sorting the years of observations according to annual precipitation amounts. The other scenario was a more extreme progression of drying based on selecting months from different years, forming a year with the wettest months through to a year with the driest months. Both scenarios retained the observed intra-annual seasonality for the region. We evaluated the sensitivity of 24 Swiss catchments to these scenarios by analyzing the simulated discharge time series and modeled storage. Mean catchment elevation, slope and area were the main controls on the sensitivity of catchment discharge to precipitation. Generally, catchments at higher elevation and with steeper slopes appeared less sensitive to meteorological droughts than catchments at lower elevations with less steep slopes. © 2015 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78576
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geography, University of Zurich, Zurich, Switzerland; Char. of Hydrology, University of Freiburg, Freiburg, Germany; Department of Earth Sciences, Uppsala University, Uppsala, Sweden
Recommended Citation:
Staudinger M,, Weiler M,, Seibert J. Quantifying sensitivity to droughts-an experimental modeling approach[J]. Hydrology and Earth System Sciences,2015-01-01,19(3)