Land cover classification of Samoylov Island and Landsat subpixel water cover of Lena River Delta, Siberia, with links to ESRI grid files

Ignoring small-scale heterogeneities in Arctic land cover may bias estimates of water, heat and carbon fluxes in large-scale climate and ecosystem models. We investigated subpixel-scale heterogeneity in CHRIS/PROBA and Landsat-7 ETM+ satellite imagery over ice-wedge polygonal tundra in the Lena Delta of Siberia, and the associated implications for evapotranspiration (ET) estimation. Field measurements were combined with aerial and satellite data to link fine-scale (0.3 m resolution) with coarse-scale (upto 30 m resolution) land cover data. A large portion of the total wet tundra (80%) and water body area (30%) appeared in the form of patches less than 0.1 ha in size, which could not be resolved with satellite data. Wet tundra and small water bodies represented about half of the total ET in summer. Their contribution was reduced to 20% in fall, during which ET rates from dry tundra were highest instead. […]

Data and Resources

Dataset extent

Map data © OpenStreetMap contributors
Source https://doi.pangaea.de/10.1594/PANGAEA.786927
Version 1.0
Citation None
Authors
  • Author Name: Sina Muster
Temporal coverage
Spatial coverage { "coordinates": [ [ [ 129.5, 72.0 ], [ 129.5, 73.9 ], [ 123.6, 73.9 ], [ 123.6, 72.0 ], [ 129.5, 72.0 ] ] ], "type": "Polygon" }
Station research-station-samoylov-island
Collaborator
Variable measured
Measurement Technique
    Date published 2012-08-03
    Date modified
    Status
    Publisher
    • Publisher name: PANGAEA  Publisher URL: https://www.pangaea.de/
    Provider
    License https://creativecommons.org/licenses/by/3.0/