Lake Ice Classification from Sentinel-1, 2015-2016, Kytalyk, Central Yakutia (RU)

Duguay, Claude R.; Wang, Junqian

Weekly 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 of 21 m in mid to late April, 2015 & 2016. 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 DOI:10.1594/PANGAEA.889727
Project(s) ESA GlobPermafrost
Institute H2O Geomatics Inc.
Publication Date 2018-05-08
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 Central Yakutia
Spatial Reference EPSG:32655 WGS 84 / UTM zone 55N
Spatial Resolution 21 m
Spatial Coverage Latitude 70.16 to 71.54, Longitude 145.89 to 148.78
Temporal Coverage April, 2015 & 2016
Temporal Resolution Weekly
Format Geotiff
Is Supplement To
Related to

Dataset extent

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