Bagnardi, M orcid.org/0000-0002-4315-0944, González, PJ and Hooper, A orcid.org/0000-0003-4244-6652 (2016) High-resolution digital elevation model from tri-stereo Pleiades-1 satellite imagery for lava flow volume estimates at Fogo Volcano. Geophysical Research Letters, 43 (12). pp. 6267-6275. ISSN 0094-8276
Abstract
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 post-eruptive Pleiades-1 DEM and the pre-eruptive topography from TanDEM-X give a lava flow volume of 45.83 ± 0.02 x 106 m3, emplaced over an area of 4.8 km2 at a mean rate of 6.8 m3 s-1.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2016, The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | high-resolution topography; photogrammetry; 2014-2015 Fogo eruption; magma supply; earth observation data; erupted volume |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Funding Information: | Funder Grant number NERC No External Reference EU - European Union 308377 |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 Jun 2016 11:28 |
Last Modified: | 05 Oct 2017 16:09 |
Published Version: | http://dx.doi.org/10.1002/2016GL069457 |
Status: | Published |
Publisher: | American Geophysical Union (AGU) |
Identification Number: | 10.1002/2016GL069457 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101243 |