DOI: 10.5194/hess-21-1397-2017
Scopus记录号: 2-s2.0-85014992383
论文题名: The European 2015 drought from a climatological perspective
作者: Ionita M ; , Tallaksen L ; M ; , Kingston D ; G ; , Stagge J ; H ; , Laaha G ; , Van Lanen H ; A ; J ; , Scholz P ; , Chelcea S ; M ; , Haslinger K
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期: 3 起始页码: 1397
结束页码: 1419
语种: 英语
Scopus关键词: Atmospheric temperature
; Climatology
; Drought
; Soil moisture
; Surface waters
; Atmospheric circulation
; Central and Eastern Europe
; Geopotential height anomalies
; Maximum temperature
; Mediterranean basin
; North Atlantic Ocean
; Summer sea-surface temperatures
; Western Mediterranean
; Oceanography
; air-sea interaction
; atmospheric circulation
; climatology
; drought
; evapotranspiration
; heat wave
; precipitation (climatology)
; river flow
; sea surface temperature
; seasonal variation
; temperature anomaly
; Arctic
; Atlantic Ocean
; Atlantic Ocean (North)
; Canada
; Europe
; Fennoscandia
; Greenland
; Mediterranean Sea
英文摘要: The summer drought of 2015 affected a large portion of continental Europe and was one of the most severe droughts in the region since summer 2003. The summer of 2015 was characterized by exceptionally high temperatures in many parts of central and eastern Europe, with daily maximum temperatures 2 °C higher than the seasonal mean (1971-2000) over most of western Europe, and more than 3 °C higher in the east. It was the hottest and climatologically driest summer over the 1950-2015 study period for an area stretching from the eastern Czech Republic to Ukraine. For Europe, as a whole, it is among the six hottest and driest summers since 1950. High evapotranspiration rates combined with a lack of precipitation affected soil moisture and vegetation and led to record low river flows in several major rivers, even beyond the drought-hit region. The 2015 drought developed rather rapidly over the Iberian Peninsula, France, southern Benelux and central Germany in May and reached peak intensity and spatial extent by August, affecting especially the eastern part of Europe. Over the summer period, there were four heat wave episodes, all associated with persistent blocking events. Upper-level atmospheric circulation over Europe was characterized by positive 500 hPa geopotential height anomalies flanked by a large negative anomaly to the north and west (i.e., over the central North Atlantic Ocean extending to northern Fennoscandia) and another center of positive geopotential height anomalies over Greenland and northern Canada. Simultaneously, the summer sea surface temperatures (SSTs) were characterized by large negative anomalies in the central North Atlantic Ocean and large positive anomalies in the Mediterranean basin. Composite analysis shows that the western Mediterranean SST is strongly related to the occurrence of dry and hot summers over the last 66 years (especially over the eastern part of Europe). The lagged relationship between the Mediterranean SST and summer drought conditions established in this study can provide valuable skill for the prediction of drought conditions over Europe on interannual to decadal timescales. © 2017 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79233
Appears in Collections: 气候变化事实与影响
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作者单位: Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany; MARUM, Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany; Department of Geosciences, University of Oslo, Oslo, Norway; Department of Geography, University of Otago, Otago, New Zealand; University of Natural Resources and Life Sciences Vienna (BOKU), Institute of Applied Statistics and Computing, Vienna, Austria; Hydrology and Quantitative Water Management Group, Wageningen University, Wageningen, Netherlands; National Institute of Hydrology and Water Management, Bucharest, Romania; Central Institute for Meteorology and Geodynamics, Vienna, Austria
Recommended Citation:
Ionita M,, Tallaksen L,M,et al. The European 2015 drought from a climatological perspective[J]. Hydrology and Earth System Sciences,2017-01-01,21(3)