干旱区生态环境知识资源中心(Arid): Investigation of Atmospheric Boundary Layer characteristics using Ceilometer Lidar, COSMIC GPS RO satellite, Radiosonde and ERA-5 reanalysis dataset over Western Indian Region

Arid

DOI	10.1016/j.atmosres.2021.105999
	Investigation of Atmospheric Boundary Layer characteristics using Ceilometer Lidar, COSMIC GPS RO satellite, Radiosonde and ERA-5 reanalysis dataset over Western Indian Region
	Saha, Sourita; Sharma, Som; Kumar, Kondapalli Niranjan; Kumar, Prashant; Lal, Shyam; Kamat, Dharmendra
通讯作者	Sharma, S
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2022
卷号	268
英文摘要	Atmospheric Boundary Layer (ABL) characteristics are investigated using a Ceilometer Lidar over Ahmedabad, a semi-arid region in western India. Strong diurnal variations of ABL are observed during 2019, the observation period. There is a stark winter-summer difference in ABL, with summer Boundary Layer Height (BLH) exceeding winter BLH by 1-1.5 km. ABL usually collapses during monsoon and is equivocal due to the presence of thick clouds on top of ABL. The ABL is thicker during the onset of monsoon in contrast to active monsoon, rises again during the withdrawal of monsoon. Lidar observed ABL has been compared with satellite, radiosonde, and European Centre for Medium-Range Weather Forecasts (ECMWF) Reanalysis (ERA5) dataset. ERA5 shows good agreement with differences within 500 m; radiosonde observations have under-estimated ground-based measurements, especially during summer. Satellite observations highly overestimated BLH. This comparative study reveals the importance of ground-based lidars in continuous monitoring of ABL at high resolution because radiosonde, satellite, and reanalysis datasets have coarser resolutions and sparse observations. Such quantitative evaluation of ABL is formerly unavailable over this region, which can now be used to improve the representation in numerical models and thereby estimates of radiative and climate effects due to ABL.
英文关键词	Atmospheric Boundary Layer Ceilometer Lidar GPS RO ERA5 Radiosonde
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000770640300002
WOS关键词	GROUND-BASED LIDAR ; AIR-POLLUTION ; URBAN SITE ; DIURNAL VARIABILITY ; HAZE POLLUTION ; WIND PROFILER ; MIXING-HEIGHT ; DEPTH ; AEROSOL ; OCCULTATION
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/2XILL650/391948
推荐引用方式 GB/T 7714	Saha, Sourita,Sharma, Som,Kumar, Kondapalli Niranjan,et al. Investigation of Atmospheric Boundary Layer characteristics using Ceilometer Lidar, COSMIC GPS RO satellite, Radiosonde and ERA-5 reanalysis dataset over Western Indian Region[J],2022,268.
APA	Saha, Sourita,Sharma, Som,Kumar, Kondapalli Niranjan,Kumar, Prashant,Lal, Shyam,&Kamat, Dharmendra.(2022).Investigation of Atmospheric Boundary Layer characteristics using Ceilometer Lidar, COSMIC GPS RO satellite, Radiosonde and ERA-5 reanalysis dataset over Western Indian Region.ATMOSPHERIC RESEARCH,268.
MLA	Saha, Sourita,et al."Investigation of Atmospheric Boundary Layer characteristics using Ceilometer Lidar, COSMIC GPS RO satellite, Radiosonde and ERA-5 reanalysis dataset over Western Indian Region".ATMOSPHERIC RESEARCH 268(2022).