| AN IMPACT STUDY OF A NEW TYPE OF DATA OF ADAPTIVE OR
TARGETING OBSERVATION ON TYPHOON FORECAST |
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| 作者姓名： | 谭晓伟 陈德辉 张庆红 |
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| 作者单位： | Chinese Academy of Meteorological Sciences |
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| 基金项目： | adaptive or targeting observation; dropsonde; typhoon; numerical weather prediction
Foundation item: Multiple time levels of Dynamic / Physical Processes with Lagrange Non-hydrostatic Global
Model and Study on the Coordination of Correlation (40575050) |
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| 摘 要： | There was a new concept of ‘adaptive or targeting observation’ in recent years, which is an
additional and targeting observation based on the existing and fixed observing network for the atmosphere on the
impacted region. Dropsonde is one of the important observing instruments in the adaptive or targeting
observation. In this paper, GRAPES, the next generation of numerical weather prediction system of China has
been used. The impacts on the typhoon Dujuan (No.200315) forecast in experiments with dropsonde have been
studied and experiments on sensitivity have also been done. It was found that the forecasts of the elements have
been improved obviously with the use of dropsonde, such as the path, the center location, and the intensity of
typhoon. It was also found in the sensitivity studies that the setting of deviation structure also has obvious
impacts on the forecast for typhoons. It is not true that the simulation is better when the proportion of the data of dropsonde is larger in the course to modify the background.
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| 关 键 词： | adaptive or targeting observation dropsonde typhoon numerical weather prediction |
AN IMPACT STUDY OF A NEW TYPE OF DATA OF ADAPTIVE OR
TARGETING OBSERVATION ON TYPHOON FORECAST |
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| TAN Xiao-wei,CHEN De-hui and ZHANG Qing-hong.AN IMPACT STUDY OF A NEW TYPE OF DATA OF ADAPTIVE OR
TARGETING OBSERVATION ON TYPHOON FORECAST[J].Journal of Tropical Meteorology,2006,12(1):76-82. |
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| Authors: | TAN Xiao-wei CHEN De-hui and ZHANG Qing-hong |
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| Institution: | Department of Geophysics, Peking University, Beijing 100871 China |
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| Abstract: | There was a new concept of ‘adaptive or targeting observation' in recent years, which is an additional and targeting observation based on the existing and fixed observing network for the atmosphere on the impacted region. Dropsonde is one of the important observing instruments in the adaptive or targeting observation. In this paper, GRAPES, the next generation of numerical weather prediction system of China has been used. The impacts on the typhoon Dujuan (No.200315) forecast in experiments with dropsonde have been studied and experiments on sensitivity have also been done. It was found that the forecasts of the elements have been improved obviously with the use of dropsonde, such as the path, the center location, and the intensity of typhoon. It was also found in the sensitivity studies that the setting of deviation structure also has obvious impacts on the forecast for typhoons. It is not true that the simulation is better when the proportion of the data of dropsonde is larger in the course to modify the background. |
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| Keywords: | adaptive or targeting observation dropsonde typhoon numerical weather prediction |
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