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中国科学院东亚区域气候-环境重点实验室是经中国科学院批准,在原中国科学院大气物理研究所全球变化东亚区域研究中心基础上成立的开放实验室。研究领域包括东亚区域环境、气候变化等全球变化研究的诸多方面,多学科交叉研究是本实验室的基本特色。同时,实验室还承...
【学术报告】Prof. Philip D. Jones,CRU, University of East Anglia

报告题目:History of Global Temperature Estimation Koeppen to Satellites:   

                        What’s important and what isn’t 

报告人:Prof. Philip D. Jones 

单位:CRU, University of East Anglia 

时间:2015063日(周三)上午10:00 

地点:大气所40号楼319会议室

 

 

Abstract: This talk expands on the first addressing a number of issues only discussed briefly. These include: Absolute Temperatures, Comparisons with Reanalyses, National Averages and European Extremes. Most users of the gridded temperature products are happy to use temperatures expressed as anomalies, but some such as climate modellers would like absolute temperatures. Reanalyses have dramatically improved in the recent decade, so spatial comparisons can show where there can be issues with absolute and anomaly temperatures. Despite papers for the gridded products being highly cited, more citations are evident for the CRU TS 3.22 dataset (which is at 0.5° by 0.5° latitude/longitude), which is spatially infilled, as opposed to CRUTEM4. Here we show national averages computed for some of the 198 recognized countries of the UN from both CRU TS 3.22 and CRUTEM4. Both these datasets are at the monthly scale, but it is possible to look at changes in extremes at this timescale, but only for the CRUTEM4v dataset. The final part of the talk looks at daily data across Europe for trends in a number of temperature metrics and compares results with ERA-Interim.

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