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: Super-high-resolution aerial imagery, digital surface model and 3D point cloud of Ketik fire scar, Alaska (subset 03) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.962278 (dataset in review), In: Rettelbach, T et al.: Super-high-resolution aerial imagery, digital surface models and 3D point clouds of the Ketik fire scar, Alaska [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.962272 (dataset in review)
Abstract:
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 a spatial resolution of 7 cm, as well as photogrammetric point clouds in RGB and NIR at 35.84 pts/m² and 12.29 pts/m², respectively. This dataset covers approximately 9.60 km² of the Ketik fire scar in Alaska, with all images collected on 27 July 2019. This super-high-resolution dataset provides opportunities for generating detailed training datasets of permafrost landform inventories, a baseline for change detection for thermokarst and thermo-erosion processes, and upscaling of field measurements to lower-resolution satellite observations.
Keyword(s):
Data processing report:
Additional metadata:
Coverage:
Median Latitude: 71.287144 * Median Longitude: -156.783374 * South-bound Latitude: 71.287140 * West-bound Longitude: -156.783498 * North-bound Latitude: 71.287149 * East-bound Longitude: -156.783249
Date/Time Start: 2019-07-27T20:03:52 * Date/Time End: 2019-07-28T02:31:52
Event(s):
P6_219_ThawTrendR_Air_2019_1907270901 * Latitude Start: 71.287140 * Longitude Start: -156.783249 * Latitude End: 71.287149 * Longitude End: -156.783498 * Date/Time Start: 2019-07-27T20:03:52 * Date/Time End: 2019-07-28T02:31:52 * Location: Barrow, Alaska, USA * Campaign: P6-219_ThawTrendR_Air_2019 (US-Air_2019_AK_NorthSlope, ThawTrendr-Air, AIRMETH) * Basis: POLAR 6 * Method/Device: Aircraft (AC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Project | Project | Rettelbach, Tabea | |||
| 2 | File content | Content | Rettelbach, Tabea | |||
| 3 | Binary Object | Binary | Rettelbach, Tabea | vrt | ||
| 4 | Raster graphic, GeoTIFF format | GeoTIFF | Rettelbach, Tabea | DSM | ||
| 5 | Raster graphic, GeoTIFF format | GeoTIFF | Rettelbach, Tabea | Ortho | ||
| 6 | Point cloud, LAS file | LAS | Rettelbach, Tabea | PointCloudNIR | ||
| 7 | Point cloud, LAS file | LAS | Rettelbach, Tabea | PointCloudRGB |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
591 data points
Data
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