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DOI | 10.1002/joc.5300 |
Geomatic downscaling of temperatures in the Mont Blanc massif | |
Joly, Daniel1; Berger, Alexandre2; Buoncristiani, Jean-Francois2; Champagne, Olivier2,3; Pergaud, Julien2; Richard, Yves2; Soare, Paul2; Pohl, Benjamin2 | |
2018-03-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:4页码:1846-1863 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Canada |
英文摘要 | This article presents a novel downscaling method based on a geomatic spatial model. This model is constructed on the basis of regressions between topographical (explanatory) variables (digitized here at 200 m resolution) and climatic factors observed at meteorological stations. These regressions are used to calibrate the model in the form of two parameters: the frequency with which explanatory variables are significant at the 95% level, and the mean of the regression coefficient associated with each variable. One of the objectives of the article is to test the relevance of the method and the application made of it in this study bears on daily observed minimum (tn) and maximum (tx) temperatures in the Mont Blanc massif between 1979 and 2014. Estimations show weak statistical biases and the temperature variation from day to day is well represented. The root mean square errors of daily temperatures are of the order of 2 degrees C for tn and tx alike. The validation shows (1) the value of applying spatial models to two atmospheric configurations (weather regimes and local rainfall conditions) and (2) the limitations of the method. Eventually, this method shall be applied to the downscaling of large-scale atmospheric parameters provided by earth system models for projecting the temperature of the lower layers of the atmosphere over future decades. |
英文关键词 | downscaling temperature mountain area Alps Mont Blanc massif |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427011700018 |
WOS关键词 | WEATHER REGIMES ; LOCAL CLIMATE ; SURFACE-TEMPERATURE ; LAPSE RATES ; MODEL ; PREDICTORS ; GLACIERS ; MINIMUM ; MAXIMUM ; CANADA |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/36642 |
专题 | 气候变化 |
作者单位 | 1.Univ Bourgogne Franche Comte, CNRS, UMR 6049, THEMA, 32 Rue Megevand, F-25030 Besancon, France; 2.Univ Bourgogne Franche Comte, Ctr Rech Climatol, CNRS, UMR Biogeosci 6282, Dijon, France; 3.McMaster Univ, Sch Geog & Earth Sci, Hamilton, ON, Canada |
推荐引用方式 GB/T 7714 | Joly, Daniel,Berger, Alexandre,Buoncristiani, Jean-Francois,et al. Geomatic downscaling of temperatures in the Mont Blanc massif[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(4):1846-1863. |
APA | Joly, Daniel.,Berger, Alexandre.,Buoncristiani, Jean-Francois.,Champagne, Olivier.,Pergaud, Julien.,...&Pohl, Benjamin.(2018).Geomatic downscaling of temperatures in the Mont Blanc massif.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(4),1846-1863. |
MLA | Joly, Daniel,et al."Geomatic downscaling of temperatures in the Mont Blanc massif".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.4(2018):1846-1863. |
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