气候变化领域集成服务门户(CCPortal): Characteristics of temperature inversion from radiosonde measurements in the Western Ghats region

CCPortal

DOI	10.1016/j.atmosres.2020.105391
	Characteristics of temperature inversion from radiosonde measurements in the Western Ghats region
	Das S.K.; Thatte T.; Uma K.N.; Krishna U.V.M.; Saha S.K.
发表日期	2021
ISSN	0169-8095
卷号	250
英文摘要	The characteristics of temperature inversion (TI) are believed to be dependent on topographical features and synoptic regime. Western Ghats (WGs) mountains located in the west coast of India have a complex topography, and the TI features for this region remain unknown due to the complexity and non-availability of observational datasets. This study investigates TI characteristics in the troposphere using high-resolution radiosonde data (2012–2015). The radiosonde measurements are collected at Mahabaleshwar (17.92°N, 73.6°E, ~1.4 km above mean sea level, AMSL), a high-altitude site in the WGs. The characteristics of TI in terms of height, depth, and strength (i.e., temperature difference between base and top of the inversion layer) are studied. The results showed that TI occurs in all seasons, however, their frequency differs. Winter (Dec.-Feb.) shows the maximum number of inversions followed by pre-monsoon (Mar.-May), post-monsoon (Oct.-Nov.), and monsoon (Jun.-Sep.). In winter, the depth of inversion is higher; however, the inversion strength is weaker as compared to other seasons. The TI strength is always below 5 K. Apart from surface-based inversions, elevated and upper-tropospheric inversions are also observed. Vertical and horizontal wind shear profiles along with ERA-5 data were analyzed to examine the plausible mechanism for TI to occur. © 2020 Elsevier B.V.
英文关键词	Monsoon; Radiosonde; Temperature inversion; Western Ghats
语种	英语
scopus关键词	Atmospheric temperature; Atmospheric thermodynamics; Climatology; Sea level; Topography; Troposphere; Complex topographies; Horizontal wind shear; Number of inversions; Radiosonde measurements; Surface-based inversion; Temperature differences; Temperature inversions; Topographical features; Radiosondes; monsoon; radiosonde; synoptic meteorology; temperature inversion; troposphere; wind shear; India; Mahabaleshwar; Maharashtra; Western Ghats
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/162045
作者单位	Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune, 411008, India; Department of Environmental Science, Savitribai Phule Pune University, Pune, 411007, India; Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram, 695022, India
推荐引用方式 GB/T 7714	Das S.K.,Thatte T.,Uma K.N.,et al. Characteristics of temperature inversion from radiosonde measurements in the Western Ghats region[J],2021,250.
APA	Das S.K.,Thatte T.,Uma K.N.,Krishna U.V.M.,&Saha S.K..(2021).Characteristics of temperature inversion from radiosonde measurements in the Western Ghats region.Atmospheric Research,250.
MLA	Das S.K.,et al."Characteristics of temperature inversion from radiosonde measurements in the Western Ghats region".Atmospheric Research 250(2021).