Boike, Julia; Georgi, C; Kirilin, G; Muster, Sina; Abramova, Katya; Fedorova, Irina V; Chetverova, Antonina; Grigoriev, Mikhail N; Bornemann, Niko; Langer, Moritz (2015): Lake bathymetry, Samoylov Island, Lena Delta [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.841921, In supplement to: Boike, J et al. (2015): Thermal processes of thermokarst lakes in the continuous permafrost zone of northern Siberia – observations and modeling (Lena River Delta, Siberia). Biogeosciences, 12(20), 5941-5965, https://doi.org/10.5194/bg-12-5941-2015
Always quote citation above when using data! You can download the citation in several formats below.
Further details:
Project(s):
Funding:
Seventh Framework Programme (FP7), grant/award no. 282700: Changing Permafrost in the Arctic and its Global Effects in the 21st Century
Coverage:
Median Latitude: 72.364914 * Median Longitude: 126.436268 * South-bound Latitude: 72.328690 * West-bound Longitude: 126.177830 * North-bound Latitude: 72.378175 * East-bound Longitude: 126.512292
Date/Time Start: 2009-07-24T04:00:00 * Date/Time End: 2011-07-29T06:00:00
Minimum Elevation: -3.4 m * Maximum Elevation: -3.4 m
Event(s):
KU_Lake_1 (Big Alas Lake) * Latitude: 72.328690 * Longitude: 126.177830 * Date/Time Start: 2009-07-24T04:00:00 * Date/Time End: 2011-07-29T06:00:00 * Elevation: -3.4 m * Location: Samoylov Island, Lena Delta, Siberia * Method/Device: Monitoring station (MONS) * Comment: Volume: 3321094.9 m**3, Perimeter: 5170.0 m, Winter water heat budget: 61 MJ/m**2
Comment:
The folder Lake_Points contains the different lake-shapefiles. Each file has bathymetry- and shoreline-points for the interpolation. Shoreline points have heights of 0 meter. For the interpolation we used the toolbox Spatial Analyst of ArcMap 10.2. The interpolation method we used was "natural neighbour" with a fixed resolution of 0.5m for each lake. (The suggested value of ArcMap differs for each lake and depends on user inputs which are not reproducible and the volume calculations should be comparable between the lakes.) All interpolations are calculated with positive values (column depth in the shapefiles). The resulting raster was clipped by a shoreline polygonshape, created with the shoreline points.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | Boike, Julia | |||
2 | Latitude of event | Latitude | Boike, Julia | |||
3 | Longitude of event | Longitude | Boike, Julia | |||
4 | Method comment | Method comm | Boike, Julia | Interpolation method | ||
5 | Depth, bathymetric, maximum | Bathy depth max | m | Boike, Julia | ||
6 | Depth, reference | Depth ref | m | Boike, Julia | mean depth (excluding 0 depths (no shore points)) | |
7 | Area | Area | m2 | Boike, Julia | 2D | |
8 | Volume | Vol | m3 | Boike, Julia | Calculated |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
25 data points