黄河源区土壤湿度时空分布的模拟研究  

Spatio-Temporal Characteristics of Soil Moisture Simulated over the Source Region of the Yellow River

作　　者：何媛[1,2,3] 文军[3,4] 黄彦彬 张堂堂 赖欣[4] 康悦[3] 余海[5] 

机构地区：[1]海南省人工影响天气中心,海口570203 [2]海南省气象台,海口570203 [3]中国科学院寒旱区陆面过程与气候变化重点试验室中国科学院寒区旱区环境与工程研究所,兰州730000 [4]成都信息工程大学大气科学学院,成都610225 [5]海南省防雷中心,海口570203

出　　处：《高原气象》2017年第1期129-137,共9页Plateau Meteorology

基　　金：中科院寒区旱区陆面过程与气候变化重点实验室2014年度开放基金项目(LPCC201406);国家自然科学基金项目(41530529;41375022);中国科学院重点部署项目(KZZD-EW-13)

摘　　要：利用1961-2010年普林斯顿大学每3 h一次、1°×1°的大气强迫场数据驱动公用陆面模式CLM4.0(Common Land Model,version4.0)对黄河源区土壤湿度的时空分布进行了模拟试验,合理优化了CLM 4.0中土壤有机质和土壤质地属性参数,将模拟结果与荷兰自由大学AM SR-E土壤湿度产品进行了对比分析,并利用玛曲土壤湿度观测站点的观测数据对模拟结果进行了验证。结果表明,CLM4.0模式能较好的模拟黄河源区土壤湿度的空间分布及变化趋势,在优化陆面有机质和土壤质地数据参数后,模拟的土壤湿度空间分布更合理,但CLM4.0模拟的土壤湿度比地面观测值和AMSR-E土壤湿度产品的土壤湿度偏低。To drive Community Land M odel version4. 0（ CLM 4. 0） simulate soil moisture over the Source Region of the YellowRiver,the atmosphere forcing data（ 3h/1° ×1° resolutions） from 1961 to 2010 of the Princeton University were used,the default soil organic matter content in CLM 4. 0 was replaced by using a variable converted from the M ODIS/NDVI. The simulation results were compared to AM SR-E soil moisture product provided by Vrije Universiteit Amsterdam,the Netherlands. The in-situ measurements in the M aqu Soil moisture Network were used to validate the simulation results. The results showthat： the simulation result could reveal the characteristic of soil moisture in spatial distribution and temporal trend,the distribution of simulated soil moisture was more reasonable with modified surface organic matter content and soil texture,and the simulation results have relatively lower values than that of the ground measurements,and the VUA AM SR-E soil moisture product.

关 键 词：CLM4.0 黄河源区 土壤湿度 模拟 

分 类 号：P426.1[天文地球—大气科学及气象学]