Characteristics of aufeis for the Penzhina River basin derived from Landsat images (2013-2019)
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2020
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| _version_ | 1867171023615426560 |
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| author | Makarieva, Olga Shikhov, Andrey Ostashov, Andrey Nesterova, Nataliia Semakina, Anastassiya |
| author_facet | Makarieva, Olga Shikhov, Andrey Ostashov, Andrey Nesterova, Nataliia Semakina, Anastassiya |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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, 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 2758, with their total area about 1147.1 km². The difference between the Cadastre (1958) and the satellite-derived data may indicate significant changes of aufeis formation environments. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_925439 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Characteristics of aufeis for the Penzhina River basin derived from Landsat images (2013-2019) Makarieva, Olga Shikhov, Andrey Ostashov, Andrey Nesterova, Nataliia Semakina, Anastassiya Aster GDEM; aufeis; Aufeis area; Chukitka; DATE/TIME; ELEVATION; Historical Cadastre; Identification; Landsat; LATITUDE; LONGITUDE; LSAT; MULT; Multiple investigations; Penzhina_area; Reference/source; Remote sensing (Landsat); Russia 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, 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 2758, with their total area about 1147.1 km². The difference between the Cadastre (1958) and the satellite-derived data may indicate significant changes of aufeis formation environments. |
| title | Characteristics of aufeis for the Penzhina River basin derived from Landsat images (2013-2019) |
| topic | Aster GDEM; aufeis; Aufeis area; Chukitka; DATE/TIME; ELEVATION; Historical Cadastre; Identification; Landsat; LATITUDE; LONGITUDE; LSAT; MULT; Multiple investigations; Penzhina_area; Reference/source; Remote sensing (Landsat); Russia |
| url | https://doi.org/10.1594/PANGAEA.925439 |