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	Influence of Land Surface Characteristics on the Evolution of Convective Boundary Layer over Semi-arid Region
	Patil, M. N.; Dharmaraj, T.; Pawar, S. D.
通讯作者	Patil, MN
来源期刊	JOURNAL OF INDIAN GEOPHYSICAL UNION
ISSN	0257-7968
出版年	2020
卷号	24 期号:3 页码:49-56
英文摘要	The evolution of the atmospheric boundary layer is an important issue in the context of weather, climate and air quality control studies. Using the Land Surface Processes Experiment (LASPEX) datasets, the evolution of the atmospheric boundary layer structure over a semi-arid tropical station Anand (22 degrees 35'N, 72 degrees 55'E) was studied. The above observations have shown that the boundary layer attained a maximum height in the afternoon (0900 UTC) hours. Further the boundary layer attained a great height in summer season (low vegetation, low soil moisture, high surface temperature conditions) and a low value in the monsoon season (high soil moisture conditions). The mean boundary layer height in the afternoon hrs was found to be 1650 m in summer, 1400 m in monsoon and 1500 m in winter season (high vegetations, moderate soil moisture). Furthermore the growth rate of the boundary layer in the morning hours (0000-0300 UTC) was highest (120 m hr(-1)) in the winter season, which is about 2-3 times than that of the summer and monsoon season. Similarly, the decaying rate of the boundary layer in the evening hrs (0900-1200 hrs UTC), was highest (290 m hr(-1)) in the summer season. Nevertheless, it has been observed that the boundary layer transition in the morning hrs did not occur immediately after the sunrise. The evening transition is observed to have started early in winter season than that of summer. A comparison of the present boundary layer height with the mid-latitudinal region showed that the boundary layer heights in tropics are not much different from the mid-latitudinal region.
英文关键词	Heat fluxes Morning transition Soil moisture Tropical boundary layer Vegetation Semi-arid region
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000569395600006
WOS关键词	TROPICAL STATION ; SOUTH-POLE ; HEIGHT ; GROWTH ; LIDAR
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/2XILL650/334597
作者单位	[Patil, M. N.; Dharmaraj, T.; Pawar, S. D.] Minist Earth Sci, Indian Inst Trop Meteorol, Pune 411008, Maharashtra, India
推荐引用方式 GB/T 7714	Patil, M. N.,Dharmaraj, T.,Pawar, S. D.. Influence of Land Surface Characteristics on the Evolution of Convective Boundary Layer over Semi-arid Region[J],2020,24(3):49-56.
APA	Patil, M. N.,Dharmaraj, T.,&Pawar, S. D..(2020).Influence of Land Surface Characteristics on the Evolution of Convective Boundary Layer over Semi-arid Region.JOURNAL OF INDIAN GEOPHYSICAL UNION,24(3),49-56.
MLA	Patil, M. N.,et al."Influence of Land Surface Characteristics on the Evolution of Convective Boundary Layer over Semi-arid Region".JOURNAL OF INDIAN GEOPHYSICAL UNION 24.3(2020):49-56.