Lake Ice Classification from Sentinel-1A 2015 - 2018

In the ESA DUE GlobPermafrost project lake ice classifications were produced to distinguish grounded ice and floating ice in lakes in Barrow (Arctic Alaska, US), Teshekpuk (Arctic Alaska, US), Mackenzie Delta (Beaufort Sea Region, CA), Kytalyk (Central Yakutia, RU), Lena Delta (Laptev and East Siber...

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Bibliographic Details
Main Authors: Duguay, Claude R, Wang, Junqian
Format: Dataset
Language:English
Published: PANGAEA 2018
Subjects:
AWI_PerDyn
C01_Barrow
C03_Teshekpuk
C04_Mackenzie_Delta
C06_Kytalyk
C07_Lena_Delta
C08_Yamal
C12_1_Central_Seward_Peninsula
C12_2_Cape_Espenberg_Lowland
Cryosphere
ESA Data User Element - GlobPermafrost
ESA-DUE-GlobPermafrost
Event label
File format
File name
File size
MON
Monitoring
Permafrost Research (Periglacial Dynamics) @ AWI
Uniform resource locator/link to file
Arctic
Mackenzie Delta
East Siberian Sea
Barrow
Beaufort Sea
Ice
laptev
lena delta
permafrost
Yakutia
Alaska
Siberia
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.889727
https://doi.org/10.1594/PANGAEA.889727
Description
Summary:In the ESA DUE GlobPermafrost project lake ice classifications were produced to distinguish grounded ice and floating ice in lakes in Barrow (Arctic Alaska, US), Teshekpuk (Arctic Alaska, US), Mackenzie Delta (Beaufort Sea Region, CA), Kytalyk (Central Yakutia, RU), Lena Delta (Laptev and East Siberian Sea Region, RU) and Yamal (Western Siberia, RU). Classifications are based on Sentinel-1A synthetic aperture radar time-series with a resolution between 18 m and 26 m. Imagery provides a weekly to monthly resolution throughout April and May for the years 2015 to 2017. 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 versions contain two classes: grounded ice (CLASS 1) and floating ice (CLASS 2). All data are provided in geotiff format. More information about image processing and classification can be found in the product guide.

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