DOI: 10.1002/2016GL068990
论文题名: Revealing the early ice flow patterns with historical Declassified Intelligence Satellite Photographs back to 1960s
作者: Wang S. ; Liu H. ; Yu B. ; Zhou G. ; Cheng X.
刊名: Geophysical Research Letters
ISSN: 0094-8994
EISSN: 1944-8725
出版年: 2016
卷: 43, 期: 11 起始页码: 5758
结束页码: 5767
语种: 英语
英文关键词: ARGON
; Declassified Intelligence Satellite Photography
; ice velocity mapping
; Larsen Ice Shelf
Scopus关键词: Argon
; Ice control
; Mapping
; Photography
; Rock mechanics
; Satellite imagery
; Satellites
; Space surveillance
; Tracking (position)
; Bundle block adjustments
; Declassified intelligence satellite photographies
; Ice shelves
; Ice velocity
; Image ortho-rectification
; Intelligence satellites
; Retrospective analysis
; Very high spatial resolutions
; Ice
英文摘要: The reconnaissance ARGON satellites collected the earliest images of Antarctica from space dating back to the 1960s, providing valuable historical baseline information for studying polar ice sheets. Those photographs are underutilized for ice motion mapping, due to lack of sufficient ground controls for image orthorectification. In this study, we orthorectified the ARGON photographs by fully exploiting the metric qualities of WorldView satellite images: very high spatial resolution and precise geolocation. Through a case study over Larsen Ice Shelf, we demonstrated that the camera model with bundle block adjustment can achieve geolocation accuracy of better than the nominal resolution (140 m) for orthorectifying ARGON images, with WorldView imagery as ground control source. This allowed us to extend the ice velocity records of Larsen Ice Shelf back into 1960s~1970s for the first time. The retrospective analysis revealed that acceleration of the collapsed Larsen B occurred much earlier than previously thought. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977138832&doi=10.1002%2f2016GL068990&partnerID=40&md5=5be700aaab76b13543c1935b1ad8f5a3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9957
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geography, University of Cincinnati, Cincinnati, OH, United States
Recommended Citation:
Wang S.,Liu H.,Yu B.,et al. Revealing the early ice flow patterns with historical Declassified Intelligence Satellite Photographs back to 1960s[J]. Geophysical Research Letters,2016-01-01,43(11).