Evaluation of ERA-Interim Air Temperature Data over the Qilian Mountains of China
Joint Authors
Gao, Lu
Wei, Jianhui
Deng, Haijun
Zhao, Peng
Ma, Miaomiao
Gao, Jianyun
Chen, Xingwei
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-04-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
In this study, 2 m air temperature data from 24 meteorological stations in the Qilian Mountains (QLM) are examined to evaluate ERA-Interim reanalysis temperature data derived from the European Centre for Medium-Range Weather Forecasts (ECMWF) for the period of 1979–2017.
ERA-Interim generally captures the monthly, seasonal, and annual variation very well.
High daily correlations ranging from 0.956 to 0.996 indicate that ERA-Interim captures the daily temperature observations very well.
However, an average root-mean-square error (RMSE) of ±2.7°C of all stations reveals that ERA-Interim should not be directly applied at individual sites.
The biases are mainly attributed to the altitude differences between ERA-Interim grid points and stations.
The positive trend (0.457°C/decade) is significant over the Qilian Mountains based on the 1979–2017 observations.
ERA-Interim captures the warming trend very well with an increase rate of 0.384°C/decade.
The observations and ERA-Interim both show the largest positive trends in summer with the values of 0.552°C/decade and 0.481°C/decade, respectively.
We conclude that in general ERA-Interim captures the trend very well for observed 2 m air temperatures and ERA-Interim is generally reliable for climate change research over the Qilian Mountains.
American Psychological Association (APA)
Zhao, Peng& Gao, Lu& Wei, Jianhui& Ma, Miaomiao& Deng, Haijun& Gao, Jianyun…[et al.]. 2020. Evaluation of ERA-Interim Air Temperature Data over the Qilian Mountains of China. Advances in Meteorology،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1126967
Modern Language Association (MLA)
Zhao, Peng…[et al.]. Evaluation of ERA-Interim Air Temperature Data over the Qilian Mountains of China. Advances in Meteorology No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1126967
American Medical Association (AMA)
Zhao, Peng& Gao, Lu& Wei, Jianhui& Ma, Miaomiao& Deng, Haijun& Gao, Jianyun…[et al.]. Evaluation of ERA-Interim Air Temperature Data over the Qilian Mountains of China. Advances in Meteorology. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1126967
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1126967