干旱区生态环境知识资源中心(Arid): 关于用台站资料估算西北干旱区夏季感热通量的热力参数化比较

Arid

	关于用台站资料估算西北干旱区夏季感热通量的热力参数化比较
其他题名	Testing of Surface Flux Parameterizations for Estimating Summer Sensible Heat Flux over the Arid Region of Northwest China from China Meteorological Administration Data
	周德刚
来源期刊	大气科学
ISSN	1006-9895
出版年	2016
卷号	40 期号:2 页码:411-422
中文摘要	气象台站观测的气象要素可能受城市化等因子的影响而与野外试验站的观测存在一定的差异,这影响野外试验获取的热力参数直接应用于西北干旱区台站感热通量的估算。本文选取了一些常用的热力参数化方案(包括Z10、B82、Z98、Y08和Z12等方案),通过敦煌站夏季估算的感热通量与野外观测的比较以及对整个西北干旱区夏季感热通量的估算,评价了这些热力参数化对动量粗糙度的敏感性和在西北干旱区的适用性。结果显示,热力输送系数取定值的方案计算西北干旱区的感热通量可能存在较大不确定;台站的动量粗糙度可能受城市化等因子的影响,但在感热通量计算时建议取台站下垫面的动量粗糙度;Y08方案估算的感热通量相对比较合理,可以用来研究西北干旱区的夏季地表感热输送特征。
英文摘要	Meteorological variables observed at China Meteorological Administration (CMA) stations may differ from those in field stations due to the effects of urbanization and other factors related to CMA observations. This hampers the application of the determined thermodynamical parameters from field experiments in estimating the sensible heat flux over the arid region of Northwest China. This study chooses several broadly used surface flux parameterization schemes (including Z10, B82, Z98, Y08, Z12, etc.) and tests their sensitivities to momentum roughness length. It also tests their application in the arid region of Northwest China by comparing the sensible heat flux estimation at Dunhuang with observations and estimations of summer sensible heat flux over the whole arid region of Northwest China from CMA data. The results indicate that the scheme taking the bulk transfer coefficient for heat as a constant may bring much uncertainty to sensible heat flux estimation over the arid region. It is advised that the momentum roughness length at CMA stations should consider that of the natural underlying surface where the station is located when determining the sensible heat flux, although it may be disturbed by urbanization and other factors. The sensible heat flux estimated by the Y08 scheme seems relatively reasonable, and therefore the use of this scheme is advised when analyzing the characteristics of summer surface sensible heat flux over the arid region of Northwest China.
中文关键词	感热通量 ; 热力参数化 ; 西北干旱区
英文关键词	Sensible heat flux Flux parameterization Arid region of Northwest China
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5659795
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234038
作者单位	中国科学院大气物理研究所季风系统研究中心, 北京 100190, 中国
推荐引用方式 GB/T 7714	周德刚. 关于用台站资料估算西北干旱区夏季感热通量的热力参数化比较[J]. 中国科学院大气物理研究所,2016,40(2):411-422.
APA	周德刚.(2016).关于用台站资料估算西北干旱区夏季感热通量的热力参数化比较.大气科学,40(2),411-422.
MLA	周德刚."关于用台站资料估算西北干旱区夏季感热通量的热力参数化比较".大气科学 40.2(2016):411-422.

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