Automated processing of aerial imagery for geohazards monitoring: Results from Fagradalsfjall eruption, SW Iceland, August 2022 ...

• Main Authors: Gunnarson, Sydney R., Belart, Joaquín M. C., Óskarsson, Birgir V., Gudmundsson, Magnús Tumi, Högnadóttir, Thórdís, Pedersen, Gro B. M., Dürig, Tobias, Pinel, Virginie
• Format: Dataset
• Language: English
• Published: Zenodo 2023
• Subjects: Photogrammetry; Iceland; Remote Sensing; Volcano Monitoring; DEM; Orthomosaic; Pléiades
• Online Access: https://dx.doi.org/10.5281/zenodo.7701193; https://zenodo.org/record/7701193

1- Dataset Summary Here we present a dataset of DEMs (Digital Elevation Models), orthomosaics, and lava area outlines for the August 2022 eruption at Fagradalsfjall, SW Iceland. The dataset consists of: (1) five aerial surveys collected over the course of the August 2022 Fagradalsfjall eruption, (2) one survey carried out on 14 August 2022 using Pléiades satellite stereo images, and (3) a larger aerial survey, covering the 2021 and 2022 eruption sites in late September 2022 after the volcanic activity concluded. 2- Background The volcano at Fagradalsfjall, SW-Iceland, began erupting on 3 August 2022 at 13:20 following 10 months of quiescence. As part of the response plan, a series of photogrammetric surveys were conducted in rapid, operational mode throughout the duration of the eruption. Subsequent production of data products for natural hazards monitoring (lava maps, lava volumes, effusion rates) were calculated within hours and reported to the Icelandic Civil Defense, following a similar approach that ... : Costs of overflights were paid by the Icelandic State as a part of emergency response coordinated by the National Commissioner of the Icelandic Police, Department of Civil Protection. Other funding was provided by the Institute of Earth Sciences and the National Land Survey of Iceland. The Icelandic Institute of Natural History provided camera equipment, and Físfélag Reykjavíkur provided lightweight aircrafts and pilots for the project. Pléiades images were provided by the CIEST 2 (CNES) initiative and through the Icelandic Volcanoes Supersite project supported by the Committee on Earth Observing Satellites (imagery Pléiades©CNES2021, distribution AIRBUS DS). ...