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Nitze, Ingmar; Cooley, Sarah W; Duguay, Claude R; Jones, Benjamin M; Grosse, Guido (2020): Spatial lake dynamics and lake-ice datasets of the Northern Seward and Baldwin Peninsulas in Alaska. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA,

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The data publication contains supplementary data to the article "Supplementary Dataset to: The catastrophic thermokarst lake drainage events of 2018 in northwestern Alaska: Fast-forward into the future"
This data publication includes four datasets:
1. Lake change datasets for 1999-2014 and 2017-2018 based on Landsat and Sentinel-1 data as Polygon Shapefiles
2. Lake change datasets for 2017 and 2018 based on high-temporal resolution PlanetScope imagery as Polygon Shapefiles and csv.
3. Lake ice simulations for the study area for 1980-2018.
4. Study sites in two versions: a) including seawater and b) clipped to land area. Files are Polygon Shapefiles.
The datasets cover the land area of the Baldwin Peninsula and northern Seward Peninsula in north-western Alaska.
The datasets are (#1&#2) remote sensing based observations and (#3) modelled data. Methods are described in detail in the original manuscript (open access). Dataset #4 is the extent of the study site in two versions, a) full extent including seawater and b) land only including lakes. The land boundary was clipped with the “Global Self-consistent, Hierarchical, High-resolution Geography Database” (GSHHG; Wessel and Smith, 1996) dataset in scale “h”.
The datasets cover different temporal periods and have a different temporal resolution.
Data were collected to measure the extent of a rapid and widespread thermokarst lake drainage event in northwestern Alaska in 2018 and to compare the affected number of lakes and area to previous periods. Lake-ice model data were calculated to simulate lake-ice conditions since 1980 and to put the lake-ice and weather conditions in 2017/2018 into context.
lake dynamics; Permafrost; remote sensing; thermokarst lakes
Supplement to:
Nitze, Ingmar; Cooley, Sarah W; Duguay, Claude R; Jones, Benjamin M; Grosse, Guido (2020): The catastrophic thermokarst lake drainage events of 2018 in northwestern Alaska: fast-forward into the future. The Cryosphere, 14(12), 4279-4297,
Related to:
Wessel, Pål; Smith, Walter H F (1996): A global, self-consistent, hierarchical, high-resolution shoreline database. Journal of Geophysical Research: Solid Earth, 101(B4), 8741-8743,
Median Latitude: 66.125550 * Median Longitude: -164.416950 * South-bound Latitude: 65.279900 * West-bound Longitude: -168.331500 * North-bound Latitude: 66.971200 * East-bound Longitude: -160.502400
NW-Alaska * Latitude Start: 65.279900 * Longitude Start: -168.331500 * Latitude End: 66.971200 * Longitude End: -160.502400 * Location: Alaska * Method/Device: Multiple investigations (MULT)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1File contentContentNitze, Ingmar
2Binary ObjectBinaryNitze, Ingmar
3Binary Object (Media Type)Binary (Type)Nitze, Ingmar
4Binary Object (File Size)Binary (Size)BytesNitze, Ingmar
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