globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-11-681-2017
Scopus记录号: 2-s2.0-85015033078
论文题名:
Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland
作者: Brunt K; M; , Hawley R; L; , Lutz E; R; , Studinger M; , Sonntag J; G; , Hofton M; A; , Andrews L; C; , Neumann T; A
刊名: Cryosphere
ISSN: 19940416
出版年: 2017
卷: 11, 期:2
起始页码: 681
结束页码: 692
语种: 英语
英文关键词: airborne thematic mapper ; assessment method ; GPS ; ground-based measurement ; ice sheet ; ICESat ; lidar ; precision ; satellite altimetry ; satellite data ; Arctic ; Greenland ; Summit Station
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).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75585
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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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

Recommended Citation:
Brunt K,M,, Hawley R,et al. Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland[J]. Cryosphere,2017-01-01,11(2)
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