Intercomparison of temperature and precipitation data sets based on observations in the Mediterranean and the Middle East
This paper presents an intercomparison and evaluation of gridded temperature and precipitation data sets, based on observations in the Mediterranean and the Middle East region. Using available global and regional data, we investigate the spatial and seasonal distributions of these two parameters, in...
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Published in | Journal of Geophysical Research: Atmospheres Vol. 117; no. D12 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Washington, DC
Blackwell Publishing Ltd
27.06.2012
American Geophysical Union |
Subjects | |
Online Access | Get full text |
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Summary: | This paper presents an intercomparison and evaluation of gridded temperature and precipitation data sets, based on observations in the Mediterranean and the Middle East region. Using available global and regional data, we investigate the spatial and seasonal distributions of these two parameters, including uncertainties and trends for eight subregions that signify distinct climate regimes. All data sets represent the overall spatial features well though partly with biases. Using the seasonal means, standard deviations and cumulative density functions for the eight subregions, we identify outliers among the data sets. The correlations between data sets are high except for some regional data products. Desert areas such as Saudi Arabia and Libya‐Egypt appear problematic due to their sparse station network. Similar upward trends of temperature and downward trends in precipitation are found for most of the region in all data sets, while differences appear in their magnitude and level of significance.
Key Points
Comparison of observations in Mediterranean and Middle East
Biases exist among data sets
Upward temperature trends and downward precipitation trends |
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Bibliography: | istex:A089BA494AFFEB00F7358F55D59813CC17132056 Tab-delimited Table 1.Tab-delimited Table 2.Tab-delimited Table 3.Tab-delimited Table 4. ArticleID:2011JD017293 ark:/67375/WNG-DMPX9C20-D ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0148-0227 2169-897X 2156-2202 2169-8996 |
DOI: | 10.1029/2011JD017293 |