The dataset contains ship radar images with 1 min interval. Images cover the area of 15 * 15 km with nominal resolution of 12.5 m. The bow of the ship is always pointing to left. The images have been recorded with an independent radar server, developed by Image Soft Ltd. On the server, images have been pre-processed by temporal median filtering of 15-20 s. The image capturing is described in detail in Karvonen, 2016.
Karvonen, J. (2016): Virtual radar ice buoys – a method for measuring fine-scale sea ice drift (https://doi.org/10.5194/tc-10-29-2016), The Cryosphere, 10, 29–42.
Quality
The data is published as 6 tar archives totaling 158 Gb at the following address: https://api.npolar.no/dataset/6441ca81-faff-423c-bdfd-1d9317a3d902/_file
- n-ice2015_ship_radar_01.tar.gz (https://api.npolar.no/dataset/6441ca81-faff-423c-bdfd-1d9317a3d902/_file/n-ice2015_ship_radar_01.tar.gz)
- n-ice2015_ship_radar_02.tar.gz
- n-ice2015_ship_radar_03.tar.gz
- n-ice2015_ship_radar_04.tar.gz
- n-ice2015_ship_radar_05.tar.gz
- n-ice2015_ship_radar_06.tar.gz
Each archive contains gzipped PGM images with the UTC time in the filename. Example: 201506201504.pgm.gz