大气科学2017，Vol.41Issue(1)：189-201,13.DOI:10.3878/j.issn.1006-9895.1604.15226
基于陆面模式Noah-MP的不同参数化方案在半干旱区的适用性
The Applicability of Different Parameterization Schemes in Semi-Arid Region Based on Noah-MP Land Surface Model
摘要
Abstract
Considering the large bias of the simulated surface heat fluxes with Noah-MP model at the Semi-Arid Climate and Environment Observatory of Lanzhou University (SACOL) in August 2009,an analysis of the physical processes and a series of sensitivity tests are carded out to investigate the main reasons for the large bias and select appropriate parameterization schemes.Results show that the Chen97 parameterization scheme for the surface sensible heat exchange coefficient can improve the sensible heat flux simulation.The Jarvis stomata1 resistance parameterization scheme can increase the transpiration of plants and thereby improves the latent heat flux simulation and produces a more reasonable distribution ratio of sensible and latent heat fluxes.The LP92 evaporation parameterization scheme for bare soil can significantly increase the evaporation compared with the original scheme and gives a better simulation of the latent heat flux.Finally,according to the results with different combinations of the above three parameterization schemes,it is found that using two or three new parameterization schemes simultaneously can further reduce the RMSE (Root Mean Square Error) of the simulated surface sensible and latent heat fluxes,but the simulated soil moisture and soil temperature are not improved accordingly.关键词
陆面模式Noah-MP/半干旱区/参数化方案/潜热通量/感热通量Key words
Noah-MP land surface model/Semi-arid region/Parameterization scheme/Latent heat-flux/Sensible heat flux分类
天文与地球科学引用本文复制引用
叶丹,张述文,王飞洋,毛伏平,杨茜茜..基于陆面模式Noah-MP的不同参数化方案在半干旱区的适用性[J].大气科学,2017,41(1):189-201,13.基金项目
国家重点基础研究发展计划(973计划)2013CB430100,国家自然科学基金项目41575098,高等学校博士学科点专项科研基金20120211110019 （973计划）
National Basic Research Program of China (973 Program) (Grant 2013CB430100),National Natural Science Foundation of China (NSFC) (Grant 41575098),Specialized Research Fund for the Doctoral Program of Higher Education (Grant 20120211110019) （973 Program）
