气候变化领域集成服务门户(CCPortal): Land Surface Air Temperature Variations Across the Globe Updated to 2019: The CRUTEM5 Data Set

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DOI	10.1029/2019JD032352
	Land Surface Air Temperature Variations Across the Globe Updated to 2019: The CRUTEM5 Data Set
	Osborn T.J.; Jones P.D.; Lister D.H.; Morice C.P.; Simpson I.R.; Winn J.P.; Hogan E.; Harris I.C.
发表日期	2021
ISSN	2169897X
卷号	126 期号:2
英文摘要	Climatic Research Unit temperature version 5 (CRUTEM5) is an extensive revision of our land surface air temperature data set. We have expanded the underlying compilation of monthly temperature records from 5,583 to 10,639 stations, of which those with sufficient data to be used in the gridded data set has grown from 4,842 to 7,983. Many station records have also been extended or replaced by series that have been homogenized by national meteorological and hydrological services. We have improved the identification of potential outliers in these data to better capture outliers during the reference period; to avoid classifying some real regional temperature extremes as outliers; and to reduce trends in outlier counts arising from climatic warming. Due to these updates, the gridded data set shows some regional increases in station density and regional changes in temperature anomalies. Nonetheless, the global-mean timeseries of land air temperature is only slightly modified compared with previous versions and previous conclusions are not altered. The standard gridding algorithm and comprehensive error model are the same as for the previous version, but we have explored an alternative gridding algorithm that removes the under-representation of high latitude stations. The alternative gridding increases estimated global-mean land warming by about 0.1°C over the course of the whole record. The warming from 1861–1900 to the mean of the last 5 years is 1.6°C using the standard gridding (with a 95% confidence interval for errors on individual annual means of −0.11 to +0.10°C in recent years), while the alternative gridding gives a change of 1.7°C. © 2020 Crown Copyright. This article is published with the permission of the Controller of HMSO and the Queen's Printer for Scotland.
英文关键词	climate change; CRUTEM; global temperature; global warming; instrumental climate data; land air temperature
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185532
作者单位	School of Environmental Sciences, Climatic Research Unit, University of East Anglia, Norwich, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom; National Centre for Atmospheric Science, University of East Anglia, Norwich, United Kingdom
推荐引用方式 GB/T 7714	Osborn T.J.,Jones P.D.,Lister D.H.,et al. Land Surface Air Temperature Variations Across the Globe Updated to 2019: The CRUTEM5 Data Set[J],2021,126(2).
APA	Osborn T.J..,Jones P.D..,Lister D.H..,Morice C.P..,Simpson I.R..,...&Harris I.C..(2021).Land Surface Air Temperature Variations Across the Globe Updated to 2019: The CRUTEM5 Data Set.Journal of Geophysical Research: Atmospheres,126(2).
MLA	Osborn T.J.,et al."Land Surface Air Temperature Variations Across the Globe Updated to 2019: The CRUTEM5 Data Set".Journal of Geophysical Research: Atmospheres 126.2(2021).