globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50359
论文题名:
Estimation of the absolute surface air temperature of the Earth
作者: Jones P.D.; Harpham C.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:8
起始页码: 3213
结束页码: 3217
语种: 英语
英文关键词: absolute temperature ; surface air
Scopus关键词: Atmospheric temperature ; Temperature ; Era interims ; Northern Hemispheres ; Polar Regions ; Reanalysis ; Southern Hemisphere ; Surface air temperatures ; Surface temperatures ; Estimation ; air temperature ; climate modeling ; data set ; Earth ; Northern Hemisphere ; polar region ; Southern Hemisphere ; surface temperature
英文摘要: Average temperatures for the hemispheres and the globe are generally expressed as anomalies from a base period. Most users of these data and the underlying constituent gridded datasets do not require the values in absolute degrees, but a number of users might require this additional detail. An example group of users are climate modellers, who want to directly compare their simulations with reality in absolute units. Reanalysis datasets offer opportunities of assessing earlier absolute temperature estimates, but until recently their quality over data-sparse regions of the world was questionable. Here, we assess the latest Reanalysis (ERA-Interim) which is available from 1979 to the present against earlier direct estimates. Globally averaged ERA-Interim and the earlier direct estimates of absolute surface temperatures across the world are about 0.55°C different for the 1981-2010 period, with ERA-Interim cooler. The difference is only 0.29°C for the Northern Hemisphere, but larger at 0.81°C for the Southern Hemisphere. Spatially, the largest differences come from the Polar Regions, particularly the Antarctic. ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63791
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom; Center of Excellence for Climate Change Research, Department of Meteorology, King Abdulaziz University, Jeddah, Saudi Arabia

Recommended Citation:
Jones P.D.,Harpham C.. Estimation of the absolute surface air temperature of the Earth[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(8)
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