干旱区生态环境知识资源中心(Arid): A surface temperature and moisture intercomparison study of the Weather Research and Forecasting model, in-situ measurements and satellite observations over the Atacama Desert

Arid

DOI	10.1002/qj.3553
	A surface temperature and moisture intercomparison study of the Weather Research and Forecasting model, in-situ measurements and satellite observations over the Atacama Desert
	Fonseca, Ricardo 1; Zorzano-Mier, Maria-Paz 1,2; Azua-Bustos, Armando 2,3; Gonzalez-Silva, Carlos 4; Martin-Torres, Javier 1,5
通讯作者	Fonseca, Ricardo
来源期刊	QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
ISSN	0035-9009
EISSN	1477-870X
出版年	2019
卷号	145 期号:722 页码:2202-2220
英文摘要	Good knowledge of the environmental conditions of deserts on Earth is relevant for climate studies. The Atacama Desert is of particular interest as it is considered to be the driest region on Earth. We have performed simulations using the Weather Research and Forecasting (WRF) model over the Atacama Desert for two week-long periods in the austral winter season coincident with surface temperature and relative humidity in-situ observations at three sites. We found that the WRF model generally overestimates the daytime surface temperature, with biases of up to 11 degrees C, despite giving a good simulation of the relative humidity. In order to improve the agreement with observed measurements, we conducted sensitivity experiments in which the surface albedo, soil moisture content and five tuneable parameters in the Noah Land Surface Model (namely soil porosity, soil suction, saturated soil hydraulic conductivity, the b parameter used in hydraulic functions and the quartz fraction) are perturbed. We concluded that an accurate simulation is not possible, most likely because the Noah Land Surface Model does not have a groundwater table that may be shallow in desert regions. The WRF-predicted land surface temperature is also evaluated against that estimated from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument. While at night the satellite-derived and ground-based measurements are generally in agreement, during the day MODIS estimates are typically lower by as much as 17 degrees C. This is attributed to the large uncertainty in the MODIS-estimated land surface temperatures in arid and semi-arid regions. The findings of this work highlight the need for ground-based observational networks in remote regions such as the Atacama Desert where satellite-derived and model products may not be very accurate.
英文关键词	field campaigns < 1 Tools and methods geophysical sphere local or boundary layer scale < 2 Scale Dryland desert < 4 regional and mesoscale modelling < 1 Tools and methods remote sensing < 1 Tools and methods tropics < 5 Geographic climatic zone
类型	Article
语种	英语
国家	Sweden ; Spain ; Chile
收录类别	SCI-E
WOS记录号	WOS:000479030200022
WOS关键词	MODIS LST PRODUCTS ; SOIL-WATER CONTENT ; LOW-LEVEL JET ; BOUNDARY-LAYER ; THERMAL INERTIA ; SOUTH-AMERICA ; ARID REGION ; WEST-COAST ; VOCALS-REX ; PART I
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218204
作者单位	1.Lulea Univ Technol, Dept Comp Sci Elect & Space Engn, Div Space Technol, S-97187 Lulea, Sweden; 2.CSIC, INTA, Ctr Astrobiol, Madrid, Spain; 3.Univ Autonoma Chile, Fac Ciencias Salud, Inst Ciencias Biomed, Santiago, Chile; 4.Univ Tarapaca, Fac Ciencias, Iquique, Chile; 5.CSIC, UGR, Inst Andaluz Ciencias Tierra, Granada, Spain
推荐引用方式 GB/T 7714	Fonseca, Ricardo,Zorzano-Mier, Maria-Paz,Azua-Bustos, Armando,et al. A surface temperature and moisture intercomparison study of the Weather Research and Forecasting model, in-situ measurements and satellite observations over the Atacama Desert[J],2019,145(722):2202-2220.
APA	Fonseca, Ricardo,Zorzano-Mier, Maria-Paz,Azua-Bustos, Armando,Gonzalez-Silva, Carlos,&Martin-Torres, Javier.(2019).A surface temperature and moisture intercomparison study of the Weather Research and Forecasting model, in-situ measurements and satellite observations over the Atacama Desert.QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY,145(722),2202-2220.
MLA	Fonseca, Ricardo,et al."A surface temperature and moisture intercomparison study of the Weather Research and Forecasting model, in-situ measurements and satellite observations over the Atacama Desert".QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY 145.722(2019):2202-2220.