Nesterova, Nina; Maiia, Vasileva; Nitze, Ingmar; Grosse, Guido: Georeferenced historical CORONA and HEXAGON images for key sites in the West Siberian Arctic [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.987396 (dataset in review)
Abstract:
The dataset presents georeferenced historical images of CORONA (1964 and 1969) and HEXAGON (1972, 1977, 1982, 1984) satellites for 5 key sites in the West Siberian Arctic. Georeferenced images were used to analyze the dynamics of retrogressive thaw slumps in this region. CORONA image georeferencing was performed in the open-source software QGIS version 3.34.8, using the ESRI Satellite basemap as a reference layer. We used a 3rd polynomial transformation method. The number of ground control points (GCPs) varied depending on terrain characteristics, image properties, and the mean error (RMS, 2.7-3.1 m) reported by the QGIS georeferencing module, but was not less than 40 points for each image. As the resampling method, we used a nearest neighbor algorithm. CORONA pixelsize is 2.75m. HEXAGON imagery was also georeferenced in QGIS, following the same procedure as for CORONA imagery, with the ESRI Satellite basemap used as reference. We also used a 3rd polynomial transformation (1) with nearest neighbor resampling. However, in certain cases, we used the Thin Plate Spline method with cubic (4x4 kernel) resampling (2) instead. The choice of method depended on image-specific characteristics and was based on a visual assessment of the georeferencing quality: method (1) was suitable for most images, as they were of high quality and acquired in (near-)nadir orientation. For images acquired at an oblique angle or experiencing distortions, method (2) performed better. For each image, around 40-50 Ground Control Points (GCPs) were created. HEXAGON pixelsize is 1 m.
Related to:
Nesterova, Nina; Leibman, Marina; Stadie, Carl; Hölzer, Tobias; Nitze, Ingmar; Tarasevich, Ilia; Maier, Kathrin; Maiia, Vasileva; Lantuit, Hugues; Grosse, Guido (preprint): Rapid increase in West Siberia’s retrogressive thaw slumps since 1964 associated with Arctic winter warming. https://doi.org/10.21203/rs.3.rs-7697239/v1
Nesterova, Nina; Maiia, Vasileva; Grosse, Guido: Classified and delineated retrogressive thaw slumps in five key sites in West Siberia in 1960s, 1970s, 1980s and 2024 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.987395
Project(s):
Permafrost Research (AWI_Perma)
Funding:
Coverage:
Median Latitude: 70.589282 * Median Longitude: 75.057544 * South-bound Latitude: 69.844234 * West-bound Longitude: 68.017548 * North-bound Latitude: 71.622671 * East-bound Longitude: 82.223048
Date/Time Start: 1964-08-06T00:00:00 * Date/Time End: 1984-07-30T00:00:00
Event(s):
G1_1964 * Latitude Start: 71.170082 * Longitude Start: 78.273251 * Latitude End: 71.622671 * Longitude End: 80.112557 * Date/Time: 2025-07-01T00:00:00 * Location: Western Siberia * Method/Device: QGIS software * Comment: Source satellite CORONA, acquisition year 1964
Comment:
Funded by "Der Deutsche Akademische Austauschdienst (DAAD) - STIBET I", google.org " Impact Challenge on Climate Innovation to the Permafrost Discovery Gateway development", BMWK "ML4EARTH"
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Nesterova, Nina | |||
| 2 | Site | Site | Nesterova, Nina | Key site | ||
| 3 | File name | File name | Nesterova, Nina | Original file name | ||
| 4 | Sample source | Sample source | Nesterova, Nina | Source Satellite | ||
| 5 | DATE/TIME | Date/Time | Nesterova, Nina | Geocode – Acquisition date | ||
| 6 | Image set | Image set | Nesterova, Nina | Base image | ||
| 7 | Number of points, on ground | Points ground | # | Nesterova, Nina | Number of gcps (ground control points) | |
| 8 | Root mean square error | RMS | Nesterova, Nina | |||
| 9 | Method comment | Method comm | Nesterova, Nina | |||
| 10 | Sampling | Sampling | Nesterova, Nina | Resampling method | ||
| 11 | Pixel size | Pixel size | m | Nesterova, Nina | ||
| 12 | Comment | Comment | Nesterova, Nina | Operator | ||
| 13 | Date | Date | Nesterova, Nina | |||
| 14 | Processing software | PS | Nesterova, Nina | |||
| 15 | Binary Object | Binary | Nesterova, Nina |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
377 data points