气候变化领域集成服务门户(CCPortal): An Updated Assessment of Near-Surface Temperature Change From 1850: The HadCRUT5 Data Set

CCPortal

DOI	10.1029/2019JD032361
	An Updated Assessment of Near-Surface Temperature Change From 1850: The HadCRUT5 Data Set
	Morice C.P.; Kennedy J.J.; Rayner N.A.; Winn J.P.; Hogan E.; Killick R.E.; Dunn R.J.H.; Osborn T.J.; Jones P.D.; Simpson I.R.
发表日期	2021
ISSN	2169897X
卷号	126 期号:3
英文摘要	We present a new version of the Met Office Hadley Centre/Climatic Research Unit global surface temperature data set, HadCRUT5. HadCRUT5 presents monthly average near-surface temperature anomalies, relative to the 1961–1990 period, on a regular 5° latitude by 5° longitude grid from 1850 to 2018. HadCRUT5 is a combination of sea-surface temperature (SST) measurements over the ocean from ships and buoys and near-surface air temperature measurements from weather stations over the land surface. These data have been sourced from updated compilations and the adjustments applied to mitigate the impact of changes in SST measurement methods have been revised. Two variants of HadCRUT5 have been produced for use in different applications. The first represents temperature anomaly data on a grid for locations where measurement data are available. The second, more spatially complete, variant uses a Gaussian process based statistical method to make better use of the available observations, extending temperature anomaly estimates into regions for which the underlying measurements are informative. Each is provided as a 200-member ensemble accompanied by additional uncertainty information. The combination of revised input data sets and statistical analysis results in greater warming of the global average over the course of the whole record. In recent years, increased warming results from an improved representation of Arctic warming and a better understanding of evolving biases in SST measurements from ships. These updates result in greater consistency with other independent global surface temperature data sets, despite their different approaches to data set construction, and further increase confidence in our understanding of changes seen. © 2020 Crown Copyright. This article is published with the permission of the Controller of HMSO and the Queen's Printer for Scotland.
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/185524
作者单位	Met Office Hadley Centre, Exeter, United Kingdom; Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom
推荐引用方式 GB/T 7714	Morice C.P.,Kennedy J.J.,Rayner N.A.,et al. An Updated Assessment of Near-Surface Temperature Change From 1850: The HadCRUT5 Data Set[J],2021,126(3).
APA	Morice C.P..,Kennedy J.J..,Rayner N.A..,Winn J.P..,Hogan E..,...&Simpson I.R..(2021).An Updated Assessment of Near-Surface Temperature Change From 1850: The HadCRUT5 Data Set.Journal of Geophysical Research: Atmospheres,126(3).
MLA	Morice C.P.,et al."An Updated Assessment of Near-Surface Temperature Change From 1850: The HadCRUT5 Data Set".Journal of Geophysical Research: Atmospheres 126.3(2021).