Temperature trends in regions affected by increasing aridity/humidity

Jones, Philip D. ORCID: https://orcid.org/0000-0001-5032-5493 and Reid, Phillip A. (2001) Temperature trends in regions affected by increasing aridity/humidity. Geophysical Research Letters, 28 (20). pp. 3919-3922. ISSN 0094-8276

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A paper in 1991 claimed that regions affected by desertification experience warming trends relative to neighbouring areas. To assess this, an index of aridity/humidity based on the ratio of annual precipitation to annual potential evapotranspiration totals (P/PET) is developed. This index is used to define regions experiencing increases (and those where the increase is statistically significant) in aridity and humidity. We also consider regions always arid (average values of P/PET < 0.5) and always humid (P/PET > 2.0). Trends of average annual and summer surface air temperature are then calculated for regions in the various aridity/humidity categories and compared to most of the rest of the world's land areas equatorward of 60°. The results indicate that most of the differences in trends between categories are not statistically significant.

Item Type: Article
Uncontrolled Keywords: sdg 15 - life on land ,/dk/atira/pure/sustainabledevelopmentgoals/life_on_land
Faculty \ School: Faculty of Science > School of Environmental Sciences
UEA Research Groups: Faculty of Science > Research Groups > Climatic Research Unit
Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User: Rosie Cullington
Date Deposited: 21 Jul 2011 14:23
Last Modified: 16 Jun 2023 23:49
URI: https://ueaeprints.uea.ac.uk/id/eprint/34050
DOI: 10.1029/2001GL013840

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