| Validation of the Polar MM5 for Use in the Simulation of the Arctic River Basins |
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| 作者姓名： | 马艳 陈尚 |
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| 作者单位： | First Institute of Oceanography State Oceanic Administration Qingdao 266061，First Institute of Oceanography State Oceanic Administration，Qingdao 266061 |
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| 摘 要： | The simulations were performed using a modified mesoscale model,the Polar MM5,which was adapted for use within polar regions.The objective of the study was to illustrate the skill of the Polar MM5 in simulating atmospheric behavior over the Arctic river basins.Automatic weather station data,global atmospheric analyses,as well as near-surface and upper-air observations were used to verify the simulation. Parallel simulations of the Polar MM5 and the original MM5 within the period 19-29 April 1997 simula- tions revealed that Polar MM5 reproduced better near-surface variables forecasts than the original MM5 for the region located over the North American Arctic regions.The well predicted near-surface temperature and mixing ratio by the Polar MM5 confirmed the modified physical parameterization schemes that were used in this model are appropriate for the Arctic river regions.Then the extended evaluations of the Polar MM5 simulations over both the North American and Eurasian domains during 15 December 2002 to 15 May 2003 were then carried out.The time series plots and statistical analyses from the observations and the Polar MM5 simulations at 16 stations for the near-surface and vertical profiles at 850 hPa and 500 hPa variables were analyzed.The model was found to reproduce the observed atmospheric state both at magnitude and variability with a high degree of accuracy,especially for temperature and near-surface winds,although there was a slight cold bias that existed near the surface.
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| 关 键 词： | 北极 中尺度气候模型 气候模拟 极地 大气科学 |
| 收稿时间： | 22 May 2006 |
| 修稿时间： | 2006-05-22 |
Validation of the Polar MM5 for use in the simulation of the Arctic river basins |
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| Ma?Yan,Chen?Shang.Validation of the Polar MM5 for Use in the Simulation of the Arctic River Basins[J].Advances in Atmospheric Sciences,2007,24(5):863-874. |
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| Authors: | Ma Yan Chen Shang |
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| Institution: | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061,First Institute of Oceanography, State Oceanic Administration, Qingdao 266061 |
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| Abstract: | The simulations were performed using a modified mesoscale model, the Polar MM5, which was adapted for use within polar regions. The objective of the study was to illustrate the skill of the Polar MM5 in simulating atmospheric behavior over the Arctic river basins. Automatic weather station data, global atmospheric analyses, as well as near-surface and upper-air observations were used to verify the simulation.Parallel simulations of the Polar MM5 and the original MM5 within the period 19-29 April 1997 simulations revealed that Polar MM5 reproduced better near-surface variables forecasts than the original MM5 for the region located over the North American Arctic regions. The well predicted near-surface temperature and mixing ratio by the Polar MM5 confirmed the modified physical parameterization schemes that were used in this model are appropriate for the Arctic river regions. Then the extended evaluations of the Polar MM5 simulations over both the North American and Eurasian domains during 15 December 2002 to 15 May 2003 were then carried out. The time series plots and statistical analyses from the observations and the Polar MM5 simulations at 16 stations for the near-surface and vertical profiles at 850 hPa and 500 hPa variables were analyzed. The model was found to reproduce the observed atmospheric state both at magnitude and variability with a high degree of accuracy, especially for temperature and near-surface winds, although there was a slight cold bias that existed near the surface. |
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| Keywords: | validation polar MM5 arctic river basins |
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