Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR020596 |
Twentieth-Century Hydrometeorological Reconstructions to Study the Multidecadal Variations of the Water Cycle Over France | |
Bonnet, R.1; Bae, J.1; Dayon, G.1,2; Martin, E.3,4 | |
2017-10-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Canada |
英文摘要 | Characterizing and understanding the multidecadal variations of the continental hydrological cycle is a challenging issue given the limitation of observed data sets. In this paper, a new approach to derive twentieth century hydrological reconstructions over France with an hydrological model is presented. The method combines the results of long-term atmospheric reanalyses downscaled with a stochastic statistical method and homogenized station observations to derive the meteorological forcing needed for hydrological modeling. Different methodological choices are tested and evaluated. We show that using homogenized observations to constrain the results of statistical downscaling help to improve the reproduction of precipitation, temperature, and river flows variability. In particular, it corrects some unrealistic long-term trends associated with the atmospheric reanalyses. Observationally constrained reconstructions therefore constitute a valuable data set to study the multidecadal hydrological variations over France. Thanks to these reconstructions, we confirm that the multidecadal variations previously noted in French river flows have mainly a climatic origin. Moreover, we show that multidecadal variations exist in other hydrological variables (evapotranspiration, snow cover, and soil moisture). Depending on the region, the persistence from spring to summer of soil moisture or snow anomalies generated during spring by temperature and precipitation variations may explain river flows variations in summer, when no concomitant climate variations exist. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418736000014 |
WOS关键词 | LONG-TERM ; CLIMATE ; REANALYSIS ; PRECIPITATION ; SIMULATIONS ; SURFACE ; MODELS ; TRENDS |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21342 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Toulouse, CECI, CNRS, CERFACS, Toulouse, France; 2.Univ Victoria, Pacific Climate Impacts Consortium, Victoria, BC, Canada; 3.CNRS, Meteo France, CNRM, Toulouse, France; 4.Irstea UR RECOVER, Aix En Provence, France |
推荐引用方式 GB/T 7714 | Bonnet, R.,Bae, J.,Dayon, G.,et al. Twentieth-Century Hydrometeorological Reconstructions to Study the Multidecadal Variations of the Water Cycle Over France[J]. WATER RESOURCES RESEARCH,2017,53(10). |
APA | Bonnet, R.,Bae, J.,Dayon, G.,&Martin, E..(2017).Twentieth-Century Hydrometeorological Reconstructions to Study the Multidecadal Variations of the Water Cycle Over France.WATER RESOURCES RESEARCH,53(10). |
MLA | Bonnet, R.,et al."Twentieth-Century Hydrometeorological Reconstructions to Study the Multidecadal Variations of the Water Cycle Over France".WATER RESOURCES RESEARCH 53.10(2017). |
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