Makarieva, Olga; Shikhov, Andrey; Ostashov, Andrey; Nesterova, Nataliia (2020): Characteristics of aufeis in the Kolyma River basin derived from Landsat images (2013-2017) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.925405
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Abstract:
Present-day aufeis dataset was created by Landsat-8 OLI images for the period 2013-2019. Each aufeis was delineated by satellite images as polygon. Cloud-free Landsat images are obtained immediately after snowmelt season (e.g. between May, 17 and June, 16), to detect the highest possible number of aufeis. Critical values of Normalized Difference Snow Index (NDSI) were used for semi-automated aufeis detection. However, a detailed expert-based verification was performed after automated procedure, to distinguish snow-covered areas from aufeis and cross-reference historical and satellite-based data collections. According to Landsat data, the number of aufeis reaches 2216, with their total area about 879.7 km2. The difference between the Cadastre (1958) and the satellite-derived data may indicate significant changes of aufeis formation environments.
Related to:
Makarieva, Olga; Nesterova, Nataliia; Shikhov, Andrey; Zemlianskova, Anastasiia; Luo, Dongliang; Ostashov, Andrey; Alexeev, Vladimir A (2022): Giant Aufeis - Unknown Glaciation in North-Eastern Eurasia According to Landsat Images 2013-2019. Remote Sensing, 14(17), 4248, https://doi.org/10.3390/rs14174248
Makarieva, Olga; Shikhov, Andrey; Ostashov, Andrey; Nesterova, Nataliia (2020): Aufeis (naleds) of the North-East of Russia: GIS catalogue for the Kolyma River basin. PANGAEA, https://doi.org/10.1594/PANGAEA.925406
Makarieva, Olga; Shikhov, Andrey; Ostashov, Andrey; Nesterova, Nataliia (2020): Characteristics of aufeis from the Cadastre of naleds of the North-East of the USSR (1958) for the Kolyma River basin. PANGAEA, https://doi.org/10.1594/PANGAEA.925404
Coverage:
Median Latitude: 63.507836 * Median Longitude: 155.312552 * South-bound Latitude: 60.586600 * West-bound Longitude: 144.662000 * North-bound Latitude: 68.959200 * East-bound Longitude: 168.980000
Date/Time Start: 2013-05-17T00:00:00 * Date/Time End: 2019-06-16T00:00:00
Minimum ELEVATION: 83 m a.s.l. * Maximum ELEVATION: 1403 m a.s.l.
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Reference/source | Reference | Makarieva, Olga | |||
| 2 | Identification | ID | Makarieva, Olga | Remote sensing (Landsat) (LSAT) | Landsat scene identifier in the WRS2 graph of the US Geological Survey (USGS). The first three digits indicate the column number, and last three digits represent the line number | |
| 3 | DATE/TIME | Date/Time | Makarieva, Olga | Remote sensing (Landsat) (LSAT) | Geocode – of Landsat image | |
| 4 | Comment | Comment | Makarieva, Olga | Additional information, for example, if the aufeis was partly covered by clouds and additional images were used to estimate the area | ||
| 5 | Identification | ID | Makarieva, Olga | Remote sensing (Landsat) (LSAT) | CrossIndex Identifier of aufeis by Landsat images (key field for the reference to the Cadastre data) | |
| 6 | Aufeis area | Aufeis area | km2 | Makarieva, Olga | Remote sensing (Landsat) (LSAT) | |
| 7 | LONGITUDE | Longitude | Makarieva, Olga | Remote sensing (Landsat) (LSAT) | Geocode | |
| 8 | LATITUDE | Latitude | Makarieva, Olga | Remote sensing (Landsat) (LSAT) | Geocode | |
| 9 | ELEVATION | Elevation | m a.s.l. | Makarieva, Olga | Aster GDEM | Geocode – average, of Aufeis |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
8894 data points
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