Thorne, Peter and Parker, David E. and Tett, Simon F.B. and Jones, Phil D. and McCarthy, Mark P. and Coleman, Holly and Brohan, Philip (2005) Revisiting radiosonde upper air temperatures from 1958 to 2002. Journal of Geophysical Research: Atmospheres, 110 (D18). ISSN 2169-8996

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Abstract

HadAT is a new analysis of the global upper air temperature record from 1958 to 2002 based upon radiosonde data alone. This analysis makes use of a greater number of stations than previous radiosonde analyses, combining a number of digital data sources. Neighbor buddy checks are applied to ensure that both spatial and temporal consistency are maintained. A framework of previously quality controlled stations is used to define the initial station network to minimize the effects of any pervasive biases in the raw data upon the adjustments. The analysis is subsequently expanded to consider all remaining available long-term records. The final data set consists of 676 radiosonde stations, with a bias toward continental Northern Hemisphere midlatitudes. Temperature anomaly time series are provided on 9 mandatory reporting pressure levels from 850 to 30 hPa. The effects of sampling and adjustment uncertainty are calculated at all scales from the station series to the global mean and from seasonal to multidecadal. These estimates are solely parametric uncertainty, given our methodological choices, and not structural uncertainty which relates to sensitivity to choice of approach. An initial analysis of HadAT does not fundamentally alter our understanding of long-term changes in upper air temperature changes.

Item Type:	Article
Keywords:	radiosonde; temperatures; climate;
Academic Unit:	Faculty of Social Sciences > Geography Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
Item ID:	6572
Identification Number:	https://doi.org/10.1029/2004JD005753
Depositing User:	Peter Thorne
Date Deposited:	11 Nov 2015 16:38
Journal or Publication Title:	Journal of Geophysical Research: Atmospheres
Publisher:	American Geophysical Union (AGU)
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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