Digital Elevation Models, orthoimages and lava outlines of the 2021 Fagradalsfjall eruption: Results from near real-time photogrammetric monitoring
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Pedersen, Gro B.M.1
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Belart, Joaquín M.C.2
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Óskarsson, Birgir V.3
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Gudmundsson, Magnús T.1
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Gies, Nils4
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Högnadóttir, Thórdís1
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Hjartadótti, Ásta R.1
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Pinel, Virginie5
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Berthier, Etienne6
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Dürig, Tobias1
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Reynolds, Hannah I.1
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Hamilton, Christopher W.7
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Valsson, Guðmundur8
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Einarsson, Páll1
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Ben-Yehosua, Daniel9
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Gunnarsson, Andri10
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Oddsson, Björn11
- 1. Nordic Volcanological Center, Institute of Earth Sciences, University of Iceland, Sturlugata 7, 102 Reykjavík, Iceland.
- 2. National Land Survey of Iceland, Stillholt 16–18, 300 Akranes, Iceland & Nordic Volcanological Center, Institute of Earth Sciences, University of Iceland, Sturlugata 7, 102 Reykjavík, Iceland.
- 3. Icelandic Institute of Natural History, Urriðaholtsstræti 6–8, 210 Garðabær, Iceland.
- 4. Icelandic Institute of Natural History, Urriðaholtsstræti 6–8, 210 Garðabær, Iceland. Institute of Geological Sciences, University of Bern, Baltzerstrasse 3, 3012 Bern, Switzerland.
- 5. Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, 38000 Grenoble, France.
- 6. Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, Centre National de la Recherche Scientifique (LEGOS – CNRS, UMR5566), Université de Toulouse, 31400 Toulouse, France
- 7. Nordic Volcanological Center, Institute of Earth Sciences, University of Iceland, Sturlugata 7, 102 Reykjavík, Iceland. The University of Arizona, 1629 E University Blvd Tucson, AZ 85721-0092, USA.
- 8. National Land Survey of Iceland, Stillholt 16–18, 300 Akranes.
- 9. Faculty of Civil and Environmental Engineering, University of Iceland, Dunhagi 5, 107 Reykjavík, Iceland.
- 10. The National Power Company of Iceland (Landsvirkjun), Háaleitisbraut 68, 103 Reykjavík, Iceland.
- 11. The Department of Civil Protection and Emergency Management, Skógarhlíð 14, 105 Reykjavík, Iceland.
Description
This repository contains the data behind the work described in Pedersen et al (in review), specifically the Digital Elevation Models (DEMs), orthoimages and lava outlines created as part of the near-real time monitoring of the Fagradalsfjall 2021 eruption (S-Iceland).
The processing of the data is explained in detail in the Supplement S2 of Pedersen et al (in review).
Convention for file naming:
Data: DEM, Ortho, Outline
YYYYMMDD_HHMM: Date of acquisition
Platform used: Helicopter (HEL), Pléiades (PLE), Hasselblad A6D (A6D)
Origin of elevations in DEMs: meters above ellipsoid (zmae)
Ground Sampling Distance: 2x2m (DEM) and 30x30cm (Ortho)
Cartographic projection: isn93 (see cartographic specifications for further details)
Cartographic specifications:
Cartographic projection: ISN93/Lambert 1993 (EPSG: 3057, https://epsg.io/3057)
Horizontal and vertical reference frame: ISN2016/ISH2016, updated locally around the study area in April 2021 (after pre-eruptive deformations occurred)
Origin of elevations: Ellipsoid WGS84
Raster data format: GeoTIFF
Raster compression system: ZSTD (http://facebook.github.io/zstd/)
Vector data format: GeoPackage (https://www.geopackage.org/)