Lake Ice Classification from Sentinel-1, 2016-2017, Central Seward Peninsula, 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.

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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
  1. Lake Ice Classification
Variables [Units]
  1. Lake Ice [Classes]: 1 - Grounded ice, 2 - Floating ice
Region Alaska
Spatial Reference EPSG:32603 WGS 84 / UTM zone 3N
Spatial Resolution 21 m
Spatial Coverage Latitude 65.26 to 65.45, Longitude -164.65 to -164.17
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.