Rainfall in Iberian transnational basins: a drier future for the Douro, Tagus and Guadiana?
Rainfall in Iberian transnational basins: a drier future for the Douro, Tagus and Guadiana?
复制标题
伊比利亚跨国盆地降雨:杜罗河、塔霍河和瓜迪亚纳河的未来更加干燥?
DOI:
10.1007/s10584-015-1575-z
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发表时间:
2016
期刊:
影响因子:
4.8
通讯作者:
Guerreiro S
中科院分区:
文献类型:
--
作者:
Guerreiro S
Water scarcity is critical in both Portugal and Spain; therefore, assessing future changes in rainfall for this region is vital. We analyse rainfall projections from climate models in the CMIP5 ensemble for the transnational basins of the Douro, Tagus and Guadiana with the aim of estimating future impacts on water resources. Two downscaling methods (change factor and a variation of empirical quantile mapping) and two ways of analysing future rainfall changes (differences between 30 years periods and trends in transient rainfall) are used. For the 2050s, most models project a reduction in rainfall for all months and for both methods, but there is significant spread between models. Almost all significant seasonal trends identified from 1961 to 2100 are negative. For annual rainfall, only 3 (2) models show no significant trends for the Douro/Tagus (Guadiana), while the rest show negative trends up to −6 % per decade. Reductions in rainfall are projected for spring and autumn by almost all models, both downscaling methods and both ways of analysing changes. This increases the confidence in the projection of the lengthening of the dry season which could have serious impacts for agriculture, water supply and forest fires in the region. A considerable part of the climate model disagreement in the projection of future rainfall changes for the 2050s is shown to be due to the use of 30 year intervals, leading to the conclusion that such intervals are too short to be used under conditions of high inter-annual variability as found in the Iberian Peninsula.
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DOI:
10.1002/joc.2256
发表时间:
2012-01-01
期刊:
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子:
--
作者:
Herrera, S.;Gutierrez, J. M.;Fernandez, J.
通讯作者:
Fernandez, J.
DOI:
10.1002/joc.810
发表时间:
2002-11-15
期刊:
INTERNATIONAL JOURNAL OF CLIMATOLOGY
影响因子:
--
作者:
Goodess, CM;Jones, PD
通讯作者:
Jones, PD
DOI:
--
发表时间:
2010
期刊:
--
影响因子:
--
作者:
R. Knutti;G. Abramowitz;M. Collins;V. Eyring;P. Gleckler;B. Hewitson;L. Mearns
通讯作者:
R. Knutti;G. Abramowitz;M. Collins;V. Eyring;P. Gleckler;B. Hewitson;L. Mearns
影响因子:
6.7
作者:
B. Sanderson;B. O’Neill;J. Kiehl;G. Meehl;R. Knutti;W. Washington
通讯作者:
W. Washington
影响因子:
6.2
作者:
Jongen, Marjan;Pereira, Joao Santos;Pio, Casimiro Adriao
通讯作者:
Pio, Casimiro Adriao