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DOI	10.1016/j.atmosres.2019.104652
	On the analysis of ground-based microwave radiometer data during fog conditions
	Temimi M.; Fonseca R.M.; Nelli N.R.; Valappil V.K.; Weston M.J.; Thota M.S.; Wehbe Y.; Yousef L.
发表日期	2020
ISSN	0169-8095
卷号	231
英文摘要	The goal of this study is twofold. First, we verify the retrievals of temperature and humidity profiles from a ground-based microwave radiometer (MWR) using radiosonde soundings. Second, we assess the potential of the MWR to nowcast fog formation and dissipation in a hyper-arid environment through the analysis of its profiles. The MWR is installed and operated at Masdar Institute in Abu Dhabi, United Arab Emirates (UAE), adjacent to Abu Dhabi's International Airport. MWR observations collected from 18 February 2017 to 31 March 2019. A comparison with airport radiosonde data reveals a good agreement in particular for temperature, with the two measurements generally within 1 K from the surface to 10 km. For the specific humidity, the biases can reach 5 g kg−1 in the PBL. Biases can be attributed to errors in the radiosonde measurements and a non-optimized retrieval algorithm for the MWR. A total of 14 fog events are identified during the study period. A strong near-surface inversion with lapse rates in the lowest 250 m of up to 30 K km−1 is needed for fog to form. Subsidence warming and drying associated with the subtropical anticyclone can descend down to 500 m, aiding the formation of fog at night. Cloud base height retrievals from the infrared (IR) camera capture fog onset and dissipation and complement the MWR observations. A synergy of different instruments could allow for more accurate fog detection. © 2019 Elsevier B.V.
英文关键词	Advection fog; Hyper-arid region; Microwave radiometer; Planetary boundary layer; Radiation fog
学科领域	Boundary layers; Microwave devices; Microwave measurement; Radiometers; Radiosondes; Abu Dhabi , United Arab Emirates; Advection fog; Microwave radiometers; Planetary boundary layers; Radiation fog; Radiosonde measurements; Subtropical anticyclone; Temperature and humidities; Fog; advection; boundary layer; data set; detection method; fog; ground-based measurement; humidity; microwave radiometer; Abu Dhabi [United Arab Emirates]; Masdar; United Arab Emirates
语种	英语
scopus关键词	Boundary layers; Microwave devices; Microwave measurement; Radiometers; Radiosondes; Abu Dhabi , United Arab Emirates; Advection fog; Microwave radiometers; Planetary boundary layers; Radiation fog; Radiosonde measurements; Subtropical anticyclone; Temperature and humidities; Fog; advection; boundary layer; data set; detection method; fog; ground-based measurement; humidity; microwave radiometer; Abu Dhabi [United Arab Emirates]; Masdar; United Arab Emirates
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120630
作者单位	Khalifa University of Science and Technology, P.O. Box 54224, Abu Dhabi, United Arab Emirates; National Center of Meteorology, Abu Dhabi, United Arab Emirates
推荐引用方式 GB/T 7714	Temimi M.,Fonseca R.M.,Nelli N.R.,et al. On the analysis of ground-based microwave radiometer data during fog conditions[J],2020,231.
APA	Temimi M..,Fonseca R.M..,Nelli N.R..,Valappil V.K..,Weston M.J..,...&Yousef L..(2020).On the analysis of ground-based microwave radiometer data during fog conditions.Atmospheric Research,231.
MLA	Temimi M.,et al."On the analysis of ground-based microwave radiometer data during fog conditions".Atmospheric Research 231(2020).