| 土壤湿度和地表反射率变化对中国北方气候影响的数值研究 |
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| 引用本文： | 朱乾根,兰红平,沈桐立.土壤湿度和地表反射率变化对中国北方气候影响的数值研究[J].气象学报,1996,54(4):493-500. |
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| 作者姓名： | 朱乾根 兰红平 沈桐立 |
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| 作者单位： | 南京气象学院，深圳气象台 |
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| 基金项目： | 国家基础性研究攻关项目 |
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| 摘 要： | 本文利用ＯＳＵ两层大气环流模式来考察土壤湿度和地表反射率变化对中国北方气候的影响。在（３０—４６°Ｎ，９０—１２０°Ｅ）的区域上进行了３个试验，结果表明干土壤对我国东部季风区和西部非季风区有不同的影响特征。高反射率造成降水减少。并指出地表过程的作用可能是经常发生在华北的春夏连旱现象的重要原因之一。
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| 关 键 词： | 土壤湿度，地表反射率，北方春夏连旱 |
| 收稿时间： | 1994/10/24 0:00:00 |
| 修稿时间： | 1995/6/23 0:00:00 |
NUMERICAL STUDY OF THE INFLUENCE OF SOIL MOISTURE AND SURFACE ALBEDO ON CLIMATE OFNORTH PART OF CHINA |
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| Zhu Qianggen,Lan Hongping and Shen Tongli.NUMERICAL STUDY OF THE INFLUENCE OF SOIL MOISTURE AND SURFACE ALBEDO ON CLIMATE OFNORTH PART OF CHINA[J].Acta Meteorologica Sinica,1996,54(4):493-500. |
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| Authors: | Zhu Qianggen Lan Hongping and Shen Tongli |
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| Institution: | Nanjing Institute of Meteorology, Nanjing, 210044;Nanjing Institute of Meteorology, Nanjing, 210044;Nanjing Institute of Meteorology, Nanjing, 210044 |
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| Abstract: | Three numerical simulations which integrated more than 50 days by the OSU AGCM are carried out to show the effects of changes in soil moisture and surface albedo on the climate of north part of China (30-46°N,90-120°E).Results of the simulation indicate that dry moisture have different effects on non-monsoonal area in the west of china and the monsoonal are in the east of China. High albedo produces a decrease in rainfall.It is pointed out that effect of surface process is one of possible major reason of spring-to-summer continuous drought which happen in North China frequently. |
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| Keywords: | Soil moisture Surface albedo North China Spring-to-summer continuous drought |
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