High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano
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...
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| Format: | Article |
| Language: | English |
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Wiley
2016-06-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1002/2016GL069457 |
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| author | Marco Bagnardi Pablo J. González Andrew Hooper |
| author_facet | Marco Bagnardi Pablo J. González Andrew Hooper |
| author_sort | Marco Bagnardi |
| collection | DOAJ |
| description | 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 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. |
| format | Article |
| id | doaj-art-a8e5c336d0a343bab3f5a20fca81439e |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2016-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-a8e5c336d0a343bab3f5a20fca81439e2025-08-20T02:31:39ZengWileyGeophysical Research Letters0094-82761944-80072016-06-0143126267627510.1002/2016GL069457High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo VolcanoMarco Bagnardi0Pablo J. González1Andrew Hooper2COMET, School of Earth and Environment University of Leeds Leeds UKCOMET, School of Earth and Environment University of Leeds Leeds UKCOMET, School of Earth and Environment University of Leeds Leeds UKAbstract 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.https://doi.org/10.1002/2016GL069457high‐resolution topographyphotogrammetry2014–2015 Fogo eruptionmagma supplyEarth observation dataerupted volume |
| spellingShingle | Marco Bagnardi Pablo J. González Andrew Hooper High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano Geophysical Research Letters high‐resolution topography photogrammetry 2014–2015 Fogo eruption magma supply Earth observation data erupted volume |
| title | High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano |
| title_full | High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano |
| title_fullStr | High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano |
| title_full_unstemmed | High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano |
| title_short | High‐resolution digital elevation model from tri‐stereo Pleiades‐1 satellite imagery for lava flow volume estimates at Fogo Volcano |
| title_sort | high resolution digital elevation model from tri stereo pleiades 1 satellite imagery for lava flow volume estimates at fogo volcano |
| topic | high‐resolution topography photogrammetry 2014–2015 Fogo eruption magma supply Earth observation data erupted volume |
| url | https://doi.org/10.1002/2016GL069457 |
| work_keys_str_mv | AT marcobagnardi highresolutiondigitalelevationmodelfromtristereopleiades1satelliteimageryforlavaflowvolumeestimatesatfogovolcano AT pablojgonzalez highresolutiondigitalelevationmodelfromtristereopleiades1satelliteimageryforlavaflowvolumeestimatesatfogovolcano AT andrewhooper highresolutiondigitalelevationmodelfromtristereopleiades1satelliteimageryforlavaflowvolumeestimatesatfogovolcano |