气候变化领域集成服务门户(CCPortal): Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland

CCPortal

DOI	10.5194/tc-11-681-2017
	Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland
	Brunt K.M.; Hawley R.L.; Lutz E.R.; Studinger M.; Sonntag J.G.; Hofton M.A.; Andrews L.C.; Neumann T.A.
发表日期	2017
ISSN	19940416
卷号	11 期号:2
英文摘要	A series of NASA airborne lidars have been used in support of satellite laser altimetry missions. These airborne laser altimeters have been deployed for satellite instrument development, for spaceborne data validation, to bridge the data gap between satellite missions. We used data from ground-based Global Positioning System (GPS) surveys of an 11km long track near Summit Station, Greenland, to assess the surface-elevation bias and measurement precision of three airborne laser altimeters including the Airborne Topographic Mapper (ATM), the Land, Vegetation, Ice Sensor (LVIS), the Multiple Altimeter Beam Experimental Lidar (MABEL). Ground-based GPS data from the monthly ground-based traverses, which commenced in 2006, allowed for the assessment of nine airborne lidar surveys associated with ATM and LVIS between 2007 and 2016. Surface-elevation biases for these altimeters-over the flat, ice-sheet interior-are less than 0.12m, while assessments of measurement precision are 0.09m or better. Ground-based GPS positions determined both with and without differential post-processing techniques provided internally consistent solutions. Results from the analyses of ground-based and airborne data provide validation strategy guidance for the Ice, Cloud, land Elevation Satellite 2 (ICESat-2) elevation and elevation-change data products. © 2017 The Author(s).
学科领域	airborne thematic mapper; assessment method; GPS; ground-based measurement; ice sheet; ICESat; lidar; precision; satellite altimetry; satellite data; Arctic; Greenland; Summit Station
语种	英语
scopus关键词	airborne thematic mapper; assessment method; GPS; ground-based measurement; ice sheet; ICESat; lidar; precision; satellite altimetry; satellite data; Arctic; Greenland; Summit Station
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119427
作者单位	Earth System Science Interdisciplinary Center (ESSIC), University of Maryland, College Park, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Department of Earth Sciences, Dartmouth College, Hanover, NH, United States; AECOM Corporation, Wallops Island, VA, United States; Wallops Flight Facility, NASA Goddard Space Flight Center, Wallops Island, VA, United States; Department of Geographical Sciences, University of Maryland, College Park, MD, United States; Universities Space Research Association (USRA), Columbia, MD, United States
推荐引用方式 GB/T 7714	Brunt K.M.,Hawley R.L.,Lutz E.R.,et al. Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland[J],2017,11(2).
APA	Brunt K.M..,Hawley R.L..,Lutz E.R..,Studinger M..,Sonntag J.G..,...&Neumann T.A..(2017).Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland.Cryosphere,11(2).
MLA	Brunt K.M.,et al."Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland".Cryosphere 11.2(2017).