典型干旱区陆面模式模拟检验  

Validation of Land Surface Model in Arid Region

作　　者：王胜[1] 张强[1] 赵建华[1] 王兴[2] 徐燕 白国强[4] WANG Sheng;ZHANG Qiang;ZHAO Jianhua;WANG Xing;XU Yan;BAI Guoqiang(Institute of Arid Meteorology,CMA,Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province,Key Laboratory of Arid Climatic Change and Disaster Reduction of CMA,Lanzhou 730020,China;Northwest Regional Climate Center,Lanzhou 730020,China;Qingyang Meteorological Bureau of Gansu Province,Qingyang 745000,Gansu,China;Gansu Weather Modification Office,Lanzhou 730020,China)

机构地区：[1]中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室中国气象局干旱气候变化与减灾重点实验室,甘肃兰州730020 [2]西北区域气候中心,甘肃兰州730020 [3]甘肃省庆阳市气象局,甘肃庆阳745000 [4]甘肃省人工影响天气办公室,甘肃兰州730020

出　　处：《干旱气象》2018年第6期921-926,共6页Journal of Arid Meteorology

基　　金：国家自然科学基金(41630426;41875022);公益性行业(气象)科研重大专项(GYHY201506001);国家重点基础研究发展计划项目(2013CB430206);甘肃省气象局创新团队项目(GSQXCXTD-2017-02);中国气象局兰州干旱气象研究所干旱基金项目(IAM201714)共同资助

摘　　要：利用2000年9月至2001年8月"我国西北干旱区陆-气相互作用试验(NWC-ALIEX)"敦煌站的陆面过程观测资料,基于已有的参数化结果,模拟了敦煌主要陆面特征。结果表明:典型干旱区敦煌夏季感热通量与潜热通量差异显著,感热几乎是潜热的4倍,冬季二者都很小。模式对地表温度模拟较好,但高估了浅层土壤湿度峰值;对向上辐射模拟较好,但对净辐射的模拟存在较大偏差;同时高估了地表能量的峰值。模式结果表明参数化方案对干旱区陆面过程模式具有一定的改进作用。Improving parameterization scheme in land surface process was one of the important contents of making better land surface model.In this paper,an soil-vegetation-atmosphere model was improved by parameterization scheme and was validated by using the observation data of Dunhuang station of NWC-ALIEX in Northwest China from September2000to August2001.The results show that sensible heat flux was larger than latent heat flux in Dunhuang,it was almost four times of the latent heat flux in summer,and both were very small in winter.The trend of observed surface temperature and simulated values was consistent,but peak values of shallow soil moisture were overestimated.About surface radiation,the simulated upward long wave radiation was better than that of the net radiation.Meanwhile,it overestimated the peak value of the surface energy.The results show that the parameterization scheme can improve the results in land surface process model over typical arid area.

关 键 词：陆面特征 典型干旱区 可利用能量 参数化方案 

分 类 号：P404[天文地球—大气科学及气象学]