干旱区生态环境知识资源中心(Arid): Satellite and ground based estimates for ice surface velocities in the part of central Dronning Maud Land, East Antarctica: Implications for ice flux calculations

Arid

DOI	10.1016/j.polar.2021.100737
	Satellite and ground based estimates for ice surface velocities in the part of central Dronning Maud Land, East Antarctica: Implications for ice flux calculations
	Thakur, Praveen K.; Swain, Ashit K.; Dhote, Pankaj R.; Kumar, Pradeep; Kaushik, Suvrat; Gajbhiye, Deepak; Mahagaonkar, Anirudha; Sharma, Vishal; Dharwadkar, Amit; Aggarwal, S. P.; Beg, Javed; Chauhan, Prakash; Kumar, A. Senthil
通讯作者	Thakur, PK (corresponding author), Indian Space Res Org ISRO, Indian Inst Remote Sensing, IIRS, 4 Kalidas Rd, Dehra Dun 248001, Uttarakhand, India.
来源期刊	POLAR SCIENCE
ISSN	1873-9652
EISSN	1876-4428
出版年	2021
卷号	30
英文摘要	The ice sheet and glaciers of Antarctica and Greenland represent the largest sources of freshwater on planet Earth. The understanding and quantification of their dynamic properties such as albedo, precipitation, ice mass movement, and ice elevation changes are critical for the improved climate and mass balance models. The present study utilizes space-borne optical and synthetic aperture radar (SAR) imagery to measure the ice surface velocity at high spatial resolution for a part of the central Dronning Maud Land (cDML), East Antarctica. The datasets from Landsat-8 and Sentinel-1 SAR satellite are used for ice stream velocity estimation using feature-offset tracking and differential interferometric SAR (DInSAR) methods. The derived velocity products are validated with ground based stakes network at annual time scale. The fundamental ice flow laws are used to estimate the ice outflux or discharge for selected ice stream drainage basins of cDML at fluxgate locations. The ice stream basin has been delineated using combination of elevation, slope and continental scale velocity maps. The ice influx for study area is estimated using ECMWF fifth generation reanalysis (ERA5) and Regional Atmospheric Climate Model (RACMO) v2.3 model outputs. The estimated influx and outflux are in the ranges of 0.18-4.167 Gt/y and 0.201 to 1.278 Gt/y respectively, indicating net positive mass balance for the selected area.
英文关键词	Icesheet Interferometry Ice stream velocity Ice fluxes Mass balance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000729943900005
WOS关键词	MASS-BALANCE ; SCHIRMACHER OASIS ; SHEET MOTION ; RADAR INTERFEROMETRY ; SNOW ; GLACIER ; FLOW ; DYNAMICS ; CLIMATE ; DISCRIMINATION
WOS类目	Ecology ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373999
作者单位	[Thakur, Praveen K.; Dhote, Pankaj R.; Kaushik, Suvrat; Mahagaonkar, Anirudha; Sharma, Vishal; Aggarwal, S. P.; Chauhan, Prakash; Kumar, A. Senthil] Indian Space Res Org ISRO, Indian Inst Remote Sensing, IIRS, 4 Kalidas Rd, Dehra Dun 248001, Uttarakhand, India; [Swain, Ashit K.; Kumar, Pradeep; Gajbhiye, Deepak; Dharwadkar, Amit] Geol Survey India, Polar Studies Div, Faridabad, India; [Kaushik, Suvrat] Univ Savoie Mt Blanc, EDYTEM CNRS, LISTIC, Annecy, France; [Mahagaonkar, Anirudha] Norwegian Polar Res Inst, Fram Ctr, Post Box 6606, N-9296 Tromso, Norway; [Mahagaonkar, Anirudha; Beg, Javed] NCPOR, Natl Ctr Polar & Ocean Res, Vasco Da Gama, Goa, India; [Kumar, A. Senthil] Kongu Engn Coll, Erode 638060, TN, India
推荐引用方式 GB/T 7714	Thakur, Praveen K.,Swain, Ashit K.,Dhote, Pankaj R.,et al. Satellite and ground based estimates for ice surface velocities in the part of central Dronning Maud Land, East Antarctica: Implications for ice flux calculations[J],2021,30.
APA	Thakur, Praveen K..,Swain, Ashit K..,Dhote, Pankaj R..,Kumar, Pradeep.,Kaushik, Suvrat.,...&Kumar, A. Senthil.(2021).Satellite and ground based estimates for ice surface velocities in the part of central Dronning Maud Land, East Antarctica: Implications for ice flux calculations.POLAR SCIENCE,30.
MLA	Thakur, Praveen K.,et al."Satellite and ground based estimates for ice surface velocities in the part of central Dronning Maud Land, East Antarctica: Implications for ice flux calculations".POLAR SCIENCE 30(2021).