Dataset Open Access
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
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 (SW-Iceland).
The processing of the data is explained in detail in the Supplement S2 of Pedersen et al (in review).
The data derived from Pléiades surveys includes only the DEMs and the lava outlines. The Pléiades-based orthoimages are subject to license. Please contact the authors for further information about this.
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 projection: ISN93/Lambert 1993 (EPSG: 3057, https://epsg.io/3057)
Horizontal and vertical reference frame: ISN2016/ISH2004, 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/)