--------------------------------------------- # Fagradalsfjall (Iceland) 2021 Eruption Ground Control Points (GCPs) Preferred citation (DataCite format): Hamilton, Christopher W.; Óskarsson, Birgir; Valsson, Guðmundur; Christoffersen, Michael Steven; Voigt, Joana Ruth Charlotte; Moreland, William; et al. (2022): Fagradalsfjall (Iceland) 2021 Eruption Ground Control Points (GCPs). University of Arizona Research Data Repository. Dataset. https://doi.org/10.25422/azu.data.21084865 Corresponding Author: Brett Carr, Lunar and Planetary Laboratory, bbcarr@arizona.edu License: CC BY 4.0 DOI: https://doi.org/10.25422/azu.data.21084865 --------------------------------------------- ## Summary This item contains the names and location of Ground Control Points (GCPs) used to georeference UAS surveys conducted during the 2021‒2022 eruption Fagradalsfjall eruption in Iceland. The GCPs were placed and their locations measured by University of Arizona’s Lunar and Planetary Laboratory scientists and colleagues at the University of Iceland (Háskóli Íslands), Icelandic Institute of Natural History (Náttúrufræðistofnun Íslands), and National Land Survey of Iceland (Landmælingar Íslands). Additional Acknowledgments: For their assistance in the field we thank Dr. Þorvaldur Þórðarson, Dr. Ármann Höskuldsson, Dr. Ingibjörg Jónsdóttir, Dr. Magnús Tumi Guðmundsson, Dr. Gro B. M. Pedersen, and Nils Gies