DOI: 10.1002/jgrd.50152
论文题名: Global analysis of night marine air temperature and its uncertainty since 1880: The HadNMAT2 data set
作者: Kent E.C. ; Rayner N.A. ; Berry D.I. ; Saunby M. ; Moat B.I. ; Kennedy J.J. ; Parker D.E.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 3 起始页码: 1281
结束页码: 1298
语种: 英语
英文关键词: marine air temperature
Scopus关键词: Atmospheric temperature
; Estimation
; Global warming
; Military operations
; Global analysis
; Historical observation
; Marine air temperatures
; Measurements of
; Sea surface temperature (SST)
; Temperature variability
; Uncertainty estimates
; Under-sampling
; Uncertainty analysis
; air temperature
; boundary layer
; data set
; estimation method
; global perspective
; marine ecosystem
; sea surface temperature
; uncertainty analysis
英文摘要: An updated version of the Met Office Hadley Centre's monthly night marine air temperature data set is presented. It is available on a 5°latitude- longitude grid from 1880 as anomalies relative to 1961-1990 calendar-monthly climatological average night marine air temperature (NMAT). Adjustments are made for changes in observation height; these depend on estimates of the stability of the near surface atmospheric boundary layer. In previous versions of the data set, ad hoc adjustments were also made for three periods and regions where poor observational practice was prevalent. These adjustments are re-examined. Estimates of uncertainty are calculated for every grid box and result from measurement errors, uncertainty in adjustments applied to the observations, uncertainty in the measurement height, and under-sampling. The new data set is a clear improvement over previous versions in terms of coverage because of the recent digitization of historical observations from ships' logbooks. However, the periods prior to about 1890 and around World War II remain particularly uncertain, and sampling is still sparse in some regions in other periods. A further improvement is the availability of uncertainty estimates for every grid box and every month. Previous versions required adjustments that were dependent on contemporary measurements of sea surface temperature (SST); to avoid these, the new data set starts in 1880 rather than 1856. Overall agreement with variations of SST is better for the updated data set than for previous versions, supporting existing estimates of global warming and increasing confidence in the global record of temperature variability and change. Key PointsPresents a new night marine air temperature dataset from 1880 to presentImproved coverage due to recently digitized marine observationsUncertainty estimates are available ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63944
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
There are no files associated with this item.
作者单位: National Oceanography Centre, Southampton, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom
Recommended Citation:
Kent E.C.,Rayner N.A.,Berry D.I.,et al. Global analysis of night marine air temperature and its uncertainty since 1880: The HadNMAT2 data set[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(3)