Digital Elevation Models, orthoimages and lava outlines of the 2021 Fagradalsfjall eruption: Results from near real-time photogrammetric monitoring

• Main Authors: Pedersen, Gro B.M., Belart, Joaquín M.C., Óskarsson, Birgir V., Gudmundsson, Magnús T., Gies, Nils, Högnadóttir, Thórdís, Hjartadótti, Ásta R., Pinel, Virginie, Berthier, Etienne, Dürig, Tobias, Reynolds, Hannah I., Hamilton, Christopher W., Valsson, Guðmundur, Einarsson, Páll, Ben-Yehosua, Daniel, Gunnarsson, Andri, Oddsson, Björn
• Format: Other/Unknown Material
• Language: English
• Published: Zenodo 2022
• Subjects: Photogrammetry; DEM; volcano monitoring; Iceland
• Online Access: https://doi.org/10.5281/zenodo.6581470

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/)