干旱区生态环境知识资源中心(Arid): Assessment of the Sensitivity to the Thermal Roughness Length in Noah and Noah-MP Land Surface Model Using WRF in an Arid Region

Arid

DOI	10.1007/s00024-018-1901-2
	Assessment of the Sensitivity to the Thermal Roughness Length in Noah and Noah-MP Land Surface Model Using WRF in an Arid Region
	Weston, Michael 1; Chaouch, Naira 1; Valappil, Vineeth 1; Temimi, Marouane 1; Ek, Michael 2; Zheng, Weizhong 3
通讯作者	Weston, Michael
来源期刊	PURE AND APPLIED GEOPHYSICS
ISSN	0033-4553
EISSN	1420-9136
出版年	2019
卷号	176 期号:5 页码:2121-2137
英文摘要	Atmospheric models are known to underestimate land surface temperature and, by association, 2m air temperature over dry arid regions during the day due to the treatment of the thermal roughness length also known as roughness length of heat. The thermal roughness length can be controlled by the Zilitinkevich parameter, known as Czil, which is a tunable parameter within the models. Three different scenarios with the WRF model are run to test the impact of the Czil parameter on the simulations using two land surface models: the Noah and Noah-MP models. In this study, a modified version of the Noah-MP model is tested, in which the Czil parameter, and, therefore, the thermal roughness length varies depending on the land cover and vegetation height. The model domain is over the United Arab Emirates (UAE) where the major land cover type is desert. The following configurations are tested: the Noah model with Czil=0.1, Noah model with Czil=0.5 and the Noah-MP model with Czil=0.5 over desert. Results of 2m air temperature are verified against three stations in the UAE. Mean gross error of the diurnal 2m temperature was reduced by up to 1.48 and 1.54 degrees C in the 24 and 48h forecasts, respectively. This reduced the cold bias in the model. This improvement in air temperature showed to improve the diurnal cycle of relative humidity at the three monitoring stations as well as the duration of the sea breeze in some cases.
英文关键词	Czil roughness length arid 2m temperature WRF Noah-MP
类型	Article
语种	英语
国家	U Arab Emirates ; USA
收录类别	SCI-E
WOS记录号	WOS:000467802200011
WOS关键词	RIVER-BASIN EXPERIMENT ; PARAMETERIZATION ; PROJECT ; PREDICTION ; LAYER
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218201
作者单位	1.Khalifa Univ Sci & Technol, Masdar Inst, POB 54224, Abu Dhabi, U Arab Emirates; 2.NOAA, College Pk, MD USA; 3.NOAA, IMSG, NCEP, Environm Modeling Ctr, College Pk, MD 20740 USA
推荐引用方式 GB/T 7714	Weston, Michael,Chaouch, Naira,Valappil, Vineeth,et al. Assessment of the Sensitivity to the Thermal Roughness Length in Noah and Noah-MP Land Surface Model Using WRF in an Arid Region[J],2019,176(5):2121-2137.
APA	Weston, Michael,Chaouch, Naira,Valappil, Vineeth,Temimi, Marouane,Ek, Michael,&Zheng, Weizhong.(2019).Assessment of the Sensitivity to the Thermal Roughness Length in Noah and Noah-MP Land Surface Model Using WRF in an Arid Region.PURE AND APPLIED GEOPHYSICS,176(5),2121-2137.
MLA	Weston, Michael,et al."Assessment of the Sensitivity to the Thermal Roughness Length in Noah and Noah-MP Land Surface Model Using WRF in an Arid Region".PURE AND APPLIED GEOPHYSICS 176.5(2019):2121-2137.