| Study on the Structure of a Horizontal Shear Line over the Tibetan Plateau Based on CRA-Interim Datasets and Its Comparison with ERA-Interim Datasets |
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| 作者姓名： | 姚秀萍 张硕 包晓红 师春香 刘景卫 |
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| 摘 要： | The CRA-Interim trial production of the global atmospheric reanalysis for 10 years from 2007 to 2016 is carried out by the China Meteorological Administration (CMA) in 2017. The structural characteristics of the horizontal shear line over the Tibetan Plateau (TPHSL) based on the CRA-Interim datasets are examined by objectively identifying the shear line, and compared with the analysis results of the European Centre for Medium-Range Weather Forecasts (ECMWF)the European Center (ECMWF) reanalysis data (ERA-Interim). The case occurred at 18UTC on July 5, 2016. The results show that both of the ERA-Interim and CRA-Interim datasets can well reveal the circulation background and the dynamic and thermal structure characteristics of TPHSL, and they have shown some similar features. The middle and high latitudes at 500 hPa are characterized by500hPa present the circulation situation of
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| 关 键 词： | CRA-Interim dataset ERA-Interim dataset horizontal shear line over the 57 Tibetan Plateau Structure |
| 收稿时间： | 2020-04-26 |
Study on the Structure of a Horizontal Shear Line over the Tibetan Plateau Based on CRA-Interim Datasets and Its Comparison with ERA-Interim Datasets |
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| YAO Xiu-Ping,ZHANG Shuo,Bao Xiao-hong,SHI Chun-xiang and LIU Jing-wei.Study on the Structure of a Horizontal Shear Line over the Tibetan Plateau Based on CRA-Interim Datasets and Its Comparison with ERA-Interim Datasets[J].Journal of Tropical Meteorology,2020,26(4):483-494. |
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| Authors: | YAO Xiu-Ping ZHANG Shuo Bao Xiao-hong SHI Chun-xiang and LIU Jing-wei |
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| Institution: | 1. China Meteorological Administration Training Centre, Beijing 10081 China; 2. Beijing Institude of Applied Meteorology, Beijing 100029 China; 3. Chinese Academy of Meteorological Sciences, Beijing 10081 China; 4. National Meteorological Centre, Beijing 10081 China |
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| Abstract: | The CRA-Interim trial production of the global atmospheric reanalysis for 10 years from 2007 to 2016 is carried out by the China Meteorological Administration (CMA) in 2017. The structural characteristics of the horizontal shear line over the Tibetan Plateau (TPHSL) based on the CRA-Interim datasets are examined by objectively identifying the shear line, and compared with the analysis results of the European Centre for Medium-Range Weather Forecasts (ECMWF)the European Center (ECMWF) reanalysis data (ERA-Interim). The case occurred at 18UTC on July 5, 2016. The results show that both of the ERA-Interim and CRA-Interim datasets can well reveal the circulation background and the dynamic and thermal structure characteristics of TPHSL, and they have shown some similar features. The middle and high latitudes at 500 hPa are characterized by500hPa present the circulation situation of |
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| Keywords: | CRA-Interim dataset ERA-Interim dataset horizontal shear line over the 57 Tibetan Plateau Structure |
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