Askja caldera 1945-2023 geospatial dataset ...

Here, we present a geospatial dataset covering the 1945-2023 period of morphodynamics at Askja caldera, Iceland. The dataset consists of three parts: (1) digital elevation models (DEMs) generated from the 1945 and 1987 archive aerial photographs, 2013 and 2022 Pléiades satellite imagery, and 2019, 2...

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Bibliographic Details
Main Authors: Shevchenko, Alina V., Walter, Thomas R., Belart, Joaquín M.C., Marzban, Pouria, Zorn, Edgar U.
Format: Dataset
Language:English
Published: Zenodo 2024
Subjects:
caldera
photogrammetry
slope instability
landslide
morphological changes
Askja
Iceland
Online Access:https://dx.doi.org/10.5281/zenodo.12686924
https://zenodo.org/doi/10.5281/zenodo.12686924
Description
Summary:Here, we present a geospatial dataset covering the 1945-2023 period of morphodynamics at Askja caldera, Iceland. The dataset consists of three parts: (1) digital elevation models (DEMs) generated from the 1945 and 1987 archive aerial photographs, 2013 and 2022 Pléiades satellite imagery, and 2019, 2022, and 2023 drone images; (2) orthophotographs generated from the same source data; and (3) set of shapefiles, which represents the identified morphological features at the SE wall of Askja caldera. The initial data was processed using Agisoft Metashape Professional v. 1.8.3 photogrammetric software. In addition, the 2022 and 2023 drone datasets contained infrared images that were pre-processed in ThermoViewer v. 3.0.4 and DJI Thermal Analysis Tool v. 3.1.0. The features in the shapefiles were extracted based on the DEMs and orthophotos using ArcGIS desktop v. 10.8.2 tools. This dataset corresponds to an article about the ~80-year morphological changes of the south-eastern wall of Askja caldera, Iceland. Data ...

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