Super-high-resolution aerial imagery, digital surface models and 3D point clouds of the Ketik fire scar, Alaska

• Main Authors: Rettelbach, Tabea, Nitze, Ingmar, Grünberg, Inge, Hammar, Jennika, Schäffler, Simon, Hein, Daniel, Gessner, Matthias, Bucher, Tilman, Brauchle, Jörg, Hartmann, Jörg, Sachs, Torsten, Boike, Julia, Grosse, Guido
• Format: Other/Unknown Material
• Language: English
• Published: PANGAEA
• Subjects: AC; Airborne Data; Aircraft; Alaska; Arctic Landscape Dynamics; Barrow; USA; Digital Surface Model; Fire Scar; Ice-wedge Polygons; MACS; Orthoimagery; P6_219_ThawTrendR_Air_2019_1907270901; P6-219_ThawTrendR_Air_2019; Permafrost; point clouds; POLAR 6; Structure-from-Motion; US-Air_2019_AK_NorthSlope; ThawTrendr-Air; AIRMETH; Arctic; Alfred Wegener Institute; Ice; permafrost; wedge*
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.962272

As part of the ThawTrend-Air airborne campaign led by the Alfred Wegener Institute in 2019, we collected super-high-resolution multispectral imagery of permafrost landscapes with the Modular Aerial Camera System (MACS), developed by the German Aerospace Center. From these images, we photogrammetrically processed four-band orthophotos (blue, green, red, near-infrared) and digital surface models at very high spatial resolution of 7 cm, as well as photogrammetric point clouds in RGB and NIR. This data collection aggregates nine data subsets of the Ketik fire scar, Alaska, covering approximately 75 km². All images were collected on 27 July 2019.