干旱区生态环境知识资源中心(Arid): Intercomparison review of IPWV retrieved from INSAT-3DR sounder, GNSS and CAMS reanalysis data

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DOI	10.5194/amt-14-4857-2021
	Intercomparison review of IPWV retrieved from INSAT-3DR sounder, GNSS and CAMS reanalysis data
	Yadav, Ramashray; Giri, Ram Kumar; Singh, Virendra
通讯作者	Yadav, R (corresponding author), Minist Earth Sci, India Meteorol Dept, Satellite Meteorol Div, New Delhi 110003, India.
来源期刊	ATMOSPHERIC MEASUREMENT TECHNIQUES
ISSN	1867-1381
EISSN	1867-8548
出版年	2021
卷号	14 期号:7 页码:4857-4877
英文摘要	The spatiotemporal variations of integrated precipitable water vapor (IPWV) are very important in understanding the regional variability of water vapor. Traditional in situ measurements of IPWV in the Indian region are limited, and therefore the performance of satellite and Copernicus Atmosphere Meteorological Service (CAMS) retrievals with the Indian Global Navigation Satellite System (GNSS) as reference were analyzed. In this study the CAMS reanalysis data of 1 year (2018) and the Indian GNSS and INSAT3DR sounder retrieval data for 1.5 years (January 2017 to June 2018) were utilized, and statistics were computed. It is noticed that seasonal correlation coefficient (CC) values between INSAT-3DR and Indian GNSS data mainly lie within the range of 0.50 to 0.98 for all the selected 19 stations except Thiruvananthapuram (0.1), Kanyakumari (0.31) and Karaikal (0.15) during the monsoon season and Panjim (0.2) during the post-monsoon season. The seasonal CC values between CAMS and GNSS IPWV range from 0.73 to.99 except for Jaipur (0.16) and Bhubaneswar (0.29) during the pre-monsoon season, Panjim (0.38) during the monsoon season, Nagpur (0.50) during the post-monsoon season, and Dibrugarh (0.49) Jaipur (0.58) and Bhubaneswar (0.16) during the winter season. The root mean square error (RMSE) values are higher under the wet conditions (pre-monsoon and monsoon season) than under dry conditions (post-monsoon and winter season), and we found differences in magnitude and sign of bias for INSAT-3DR and CAMS with respect to GNSS IPWV from station to station and season to season. This study will help to improve understanding and utilization of CAMS and INSAT-3DR data more effectively along with GNSS data over land, coastal and desert locations in terms of the seasonal flow of IPWV, which is an essential integrated variable in forecasting applications.
类型	Review
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000672721200002
WOS关键词	PRECIPITABLE WATER-VAPOR ; GPS METEOROLOGY ; SATELLITE-OBSERVATIONS ; NETWORK ; AIRS/AMSU/HSB ; RADIOSONDES ; PRODUCTS ; AERONET ; SYSTEM
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/2XILL650/362660
作者单位	[Yadav, Ramashray; Giri, Ram Kumar; Singh, Virendra] Minist Earth Sci, India Meteorol Dept, Satellite Meteorol Div, New Delhi 110003, India
推荐引用方式 GB/T 7714	Yadav, Ramashray,Giri, Ram Kumar,Singh, Virendra. Intercomparison review of IPWV retrieved from INSAT-3DR sounder, GNSS and CAMS reanalysis data[J],2021,14(7):4857-4877.
APA	Yadav, Ramashray,Giri, Ram Kumar,&Singh, Virendra.(2021).Intercomparison review of IPWV retrieved from INSAT-3DR sounder, GNSS and CAMS reanalysis data.ATMOSPHERIC MEASUREMENT TECHNIQUES,14(7),4857-4877.
MLA	Yadav, Ramashray,et al."Intercomparison review of IPWV retrieved from INSAT-3DR sounder, GNSS and CAMS reanalysis data".ATMOSPHERIC MEASUREMENT TECHNIQUES 14.7(2021):4857-4877.