Lake Ice Classification from Sentinel-1, 2016-2017, Cape Espenberg Lowland, Alaska (US)

Duguay, Claude R.; Wang, Junqian

Lake ice classifications distinguish grounded ice and floating ice in lakes based on Sentinel-1A and Sentinel-1B synthetic aperture radar time-series with a resolution between 18 m and 28 m in mid to late April 2016 & 2017. The dataset contains two classes: grounded ice (CLASS 1) and floating ice (CLASS 2). Three versions of the product are provided using three different algorithms: 1) image thresholding (THRESH), 2) unsupervised image segmentation using K-means classification (KMEANS), and 3) unsupervised image segmentation using the Iterative Region Growing with Semantics (IRGSEM) algorithm. All version contain two classes: grounded ice (CLASS 1) and floating ice (CLASS 2).

More information about image processing and classification can be found in the product guide.


In order to use these data, you must cite this data set with the following citation:


Duguay, Claude R.

Metadata Access

DCAT in RDF/XML-Format

DCAT in Turtle-Format

DCAT in JSON-LD-Format

APGC Dataset Metadata in JSON-Format

Data and Resources

Additional Info

Field Value
Identifier 10.1594/PANGAEA.889727
Project(s) ESA GlobPermafrost
Institute H2O Geomatics Inc.
Publication Date 2019
Version 1.0
Product Lake Ice Classification
Sensor Sentinel-1
    Variables [Units]
      Region Alaska
      Spatial Reference EPSG:32603 WGS 84 / UTM zone 3N
      Spatial Resolution 21 m
      Spatial Coverage Latitude 66.01 to 66.72, Longitude -165.33 to -163.52
      Temporal Coverage April, 2016 & 2017
      Temporal Resolution
      Format Geotiff, Shapefile
      Is Supplement To
      Related to

      Dataset extent

      Map tiles and data by OpenStreetMap, under CC BY SA.