| The Soil Moisture of China in a High Resolution Climate-Vegetation Model |
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| 作者姓名： | DAN Li JI Jinjun ZHANG Peiqun |
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| 作者单位： | Laboratory for Climate Study，National Climate Center，Laboratory for Climate Study，National Climate Center，Laboratory for Climate Study，National Climate Center Beijing 100081，START Regional Center for Temperate East Asia and Key Laboratory of Regional Climate-Environment for Temperate East Asia，Institute of Atmospheric Physics，Chinese Academy of Sciences，Beijing 100029，Beijing 100081，START Regional Center for Temperate East Asia and Key Laboratory of Regional Climate-Environment for Temperate East Asia，Institute of Atmospheric Physics，Chinese Academy of Sciences，Beijing 100029，Beijing 100081 |
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| 基金项目： | This work was supported by the Special Project of the China Meteorological Administration for Climate Change，中国科学院资助项目 |
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| 摘 要： | 1. Introduction The soil moisture plays an important role in in- fluencing the climate change by altering the surface albedo, soil heat capacity and the heat flux between air and land (Ma et al., 2001). Near-surface soil mois- ture controls the partitioni…
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| 关 键 词： | 土壤 湿度 中国 气候-植物模型 季节循环 |
| 收稿时间： | 2005-01-26 |
| 修稿时间： | 2005-04-30 |
The soil moisture of China in a high resolution climate-vegetation model |
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| DAN Li,JI Jinjun,ZHANG Peiqun.The Soil Moisture of China in a High Resolution Climate-Vegetation Model[J].Advances in Atmospheric Sciences,2005,22(5):720-729. |
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| Authors: | Dan Li Ji Jinjun Zhang Peiqun |
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| Institution: | Laboratory for Climate Study, National Climate Center, Beijing 100081;START Regional Center for Temperate East Asia and Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,Laboratory for Climate Study, National Climate Center, Beijing 100081;START Regional Center for Temperate East Asia and Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,Laboratory for Climate Study, National Climate Center, Beijing 100081 |
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| Abstract: | The spatial distribution of soil moisture, especially the temporal variation at seasonal and interannual scales, is difficult for many land surface models (LSMs) to capture partly due to the deficiencies of the LSMs and the highly spatial variability of soil moisture, which makes it problematic to simulate the moisture for climate studies. However the soil moisture plays an important role in influencing the energy and hydrological cycles between the land and air, so it should be considered in land surface models. In this paper, a soil moisture simulation in China with a T213 resolution (about 0.5625°× 0.5625°) is compared to the observational data, and its relationship to precipitation is explored. The soil moisture distribution agrees roughly with the observations, and the soil moisture pattern reflects the variation and intensity of the precipitation. In particular, for the 1998 summer catastrophic floods along the Yangtze River, the soil moisture remains high in this region from July to August and represents the flood well. The seasonal cycle of soil moisture is roughly consistent with the observed data, which is a good calibration forthe ground simulation capacity of the Atmosphere-Vegetation Interaction Model (AVIM) with respect to this tough problem for land surface models. |
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| Keywords: | soil moisture precipitation AVIM NCEP 2 seasonal cycle |
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