Probabilistic downscaling approaches: Application to wind cumulative distribution functions

被引:260
作者
Michelangeli, P. -A. [1 ]
Vrac, M. [2 ]
Loukos, H. [1 ]
机构
[1] Climpact, F-75009 Paris, France
[2] CNRS, CEA, UVSQ, Ctr Etud Saclay,Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France
关键词
CLIMATE-CHANGE; MODELS; PRECIPITATION;
D O I
10.1029/2009GL038401
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A statistical method is developed to generate local cumulative distribution functions (CDFs) of surface climate variables from large-scale fields. Contrary to most downscaling methods producing continuous time series, our "probabilistic downscaling methods'' (PDMs), named "CDF-transform'', is designed to deal with and provide local-scale CDFs through a transformation applied to large-scale CDFs. First, our PDM is compared to a reference method (Quantile-matching), and validated on a historical time period by downscaling CDFs of wind intensity anomalies over France, for reanalyses and simulations from a general circulation model (GCM). Then, CDF-transform is applied to GCM output fields to project changes in wind intensity anomalies for the 21st century under A2 scenario. Results show a decrease in wind anomalies for most weather stations, ranging from less than 1% (in the South) to nearly 9% (in the North), with a maximum in the Brittany region. Citation: Michelangeli, P.-A., M. Vrac, and H. Loukos (2009), Probabilistic downscaling approaches: Application to wind cumulative distribution functions, Geophys. Res. Lett., 36, L11708, doi:10.1029/2009GL038401.
引用
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页数:6
相关论文
共 15 条
[1]  
[Anonymous], 1958, Some Applications of Statistics to Meteorology
[2]   Downscaling recent streamflow conditions in British Columbia, Canada using ensemble neural network models [J].
Cannon, AJ ;
Whitfield, PH .
JOURNAL OF HYDROLOGY, 2002, 259 (1-4) :136-151
[3]   Comparison of future climate change over North America simulated by two regional models [J].
Chen, M ;
Pollard, D ;
Barron, EJ .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2003, 108 (D12)
[4]   THE KOLMOGOROV-SMIRNOV, CRAMER-VON MISES TESTS [J].
DARLING, DA .
ANNALS OF MATHEMATICAL STATISTICS, 1957, 28 (04) :823-838
[6]   USE OF A LIMITED-AREA MODEL NESTED IN A GENERAL-CIRCULATION MODEL FOR REGIONAL CLIMATE SIMULATION OVER EUROPE [J].
GIORGI, F ;
MARINUCCI, MR ;
VISCONTI, G .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1990, 95 (D11) :18413-18431
[7]  
Haddad ZS, 1997, Q J ROY METEOR SOC, V123, P1283, DOI 10.1002/qj.49712354107
[8]  
Marti O, 2005, NOTE POLE MODELISATI
[9]  
Nakicenvoic N., 2000, Special report on emissions scenarios: A special report of working group iii of the intergovernmental panel on climate change
[10]   Empirical downscaling of wind speed probability distributions [J].
Pryor, SC ;
Schoof, JT ;
Barthelmie, RJ .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2005, 110 (D19) :1-12