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Published April 15, 2024 | Version v1
Dataset Restricted

Arctic sea ice concentration data record in 6.25 km polar stereographic grid from three-year Landsat-8 imagery

Creators

  • 1. ROR icon Seoul National University
  • 2. Institute for Data Innovation in Science
  • 3. ROR icon Korea Polar Research Institute

Description

This dataset consists of true-like sea ice concentration (SIC) data records over the Arctic Ocean, which was derived from the 30 m resolution imagery from the Operational Land Imager (OLI) onboard Landsat-8. Each SIC map are given in a 6.25 km polar stereographic grid, and are catalogued into one of the twelve sub-regions (Baffin Bay and Labarador Seas, Barents Sea, Beaufort Sea, Bering Sea, Canadian Archipelago, Central Arctic, Chukchi Sea,  East Greenland Sea, East Siberian Sea, Hudson Bay, Kara Sea, Laptev Sea) of the Arctic Ocean. This dataset also contains uncertainty for each SIC values, which was derived using the bootstrap resampling method, the number of Landsat-8 pixels used in the calculation of each SIC values, and the 6.25 km coastal area mask.

The naming convention for the files are "sic_landsat08_YYYYMMDD_PPPRRR.nc" following:

  1. YYYYMMDD: Date of Landsat-8 scene
  2. PPPRRR: Landsat-8 orbit location in reference to the Worldwide Reference System-2

The dataset is in netCDF format and the names of headers and variables and their respective meanings are as follows:

Header Name Meaning  Attributes
title Title of the dataset  
region Name of the sub-region for each dataset  
date Eate of the Landsat-8 scene  
extent Extent of the Landsat-8 scene in longitude and latitude  
projection Projection of the dataset  
spatial_resolution Spacial resolution of the dataset

 
cloud_contamination_category Assessed cloud contamination category of the dataset  

1: underestimated cloud cover

2: overestimated cloud cover

3: correctly estimated cloud cover for cloudy sky

4: correctly estimated cloud cover for clear sky 
original_filename Original name of the Landsat-8 level 1 collection 2 dataset  
Variable Name Meaning Attributes
sea_ice_concentration SIC calculated from Landsat-8 imagery [-99: Fill value, -1: non-ocean mask, -2: region mask]
confidence_interval Quantified uncertainty derived using the 95% confidence interval from the bootstrap resampling method [-99: Fill value, -1: non-ocean mask, -2: region mask]
sample_size Number of Landsat-8 pixels used to calculate each SIC value [-99: Fill value, -1: non-ocean mask, -2: region mask]
coastal_mask 6.25 km coastal area mask [0: non-coastal area, 1: coastal area]

 

Files

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