DOI: 10.1002/2016GL069457
论文题名: High-resolution digital elevation model from tri-stereo Pleiades-1 satellite imagery for lava flow volume estimates at Fogo Volcano
作者: Bagnardi M. ; González P.J. ; Hooper A.
刊名: Geophysical Research Letters
ISSN: 0094-9612
EISSN: 1944-9343
出版年: 2016
卷: 43, 期: 12 起始页码: 6267
结束页码: 6275
语种: 英语
英文关键词: 2014–2015 Fogo eruption
; Earth observation data
; erupted volume
; high-resolution topography
; magma supply
; photogrammetry
Scopus关键词: Digital instruments
; Forestry
; Geomorphology
; Photogrammetry
; Satellite imagery
; Surveying
; Topography
; Volcanoes
; 2014-2015 Fogo eruption
; Earth observation data
; Erupted volume
; High resolution
; Magma supply
; Stereo image processing
; digital elevation model
; lava flow
; magma
; observational method
; photogrammetry
; pixel
; satellite imagery
; volcanic eruption
; volcano
; Atlantic Ocean
; Atlantic Ocean (East)
; Azores
; Fogo Volcano
; Portugal
; Sao Miguel
英文摘要: Resolving changes in topography through time using accurate high-resolution digital elevation models (DEMs) is key to understanding active volcanic processes. For the first time in a volcanic environment, we utilize very high-resolution tri-stereo optical imagery acquired by the Pleiades-1 satellite constellation and generate a 1 m resolution DEM of Fogo Volcano, Cape Verde—the most active volcano in the Eastern Atlantic region. Point cloud density is increased by a factor of 6.5 compared to conventional stereo imagery, and the number of 1 m2 pixels with no height measurements is reduced by 43%. We use the DEM to quantify topographic changes associated with the 2014–2015 eruption at Fogo. Height differences between the posteruptive Pleiades-1 DEM and the preeruptive topography from TanDEM-X give a lava flow volume of 45.83 ± 0.02 × 106 m3, emplaced over an area of 4.8 km2 at a mean rate of 6.8 m3 s−1. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978161537&doi=10.1002%2f2016GL069457&partnerID=40&md5=ccc1b519df95842640eed8044661d422
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10575
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: COMET, School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Bagnardi M.,González P.J.,Hooper A.. High-resolution digital elevation model from tri-stereo Pleiades-1 satellite imagery for lava flow volume estimates at Fogo Volcano[J]. Geophysical Research Letters,2016-01-01,43(12).