Data information and download sizes

IcySea v4.16.1 screenshot
Screenshot of the IcySea app. The coloured background shows ice concentration, grey images are radar satellite scenes, white images optical satellite scenes and the red dots are sea-ice drift forecast trajectories.

IcySea is meant to be an actionable application and as such it makes the data available to the user in near real-time. In particular:

Sea Ice Concentration (6 and 3 km resolution):
Near real-time, up to 8 updates per day
Ice Charts:
US National Ice Center (USNIC): Weekly updates, Arctic-wide and Ross Sea, Antarctica
Danish Meteorological Institute (DMI): Updates every 1-3 days, Greenland
US National Weather Service (NWS): Daily updates, Alaska
Canadian Ice Service (CIS): Weekly updates, Canadian Waters
Argentinian Naval Hydrographic Service (SHN): Weekly updates, Antarctic NAVAREA VI
Norwegian Meteorological Institute (MetNo): Daily updates (week days), Atlantic sector of the Arctic and weekly updates, Antarctic NAVAREA VI
Optimized Sea Ice Drift Forecast:
Daily updates
Radar images (Sentinel-1 and RADARSAT Constellation Mission):
Near real-time, daily updates
Optical images (MODIS):
Daily updates
Surface temperature:
Daily updates

Approximate data usage information

When using a satellite data connection it is important to know how much data is transferred when installing and using the IcySea application. Below is a list of approximate data usage amounts for various aspects of the application:

Information to downloadData transfer size
Application installation (v4.0.0) ~21.4 MB
Sea-ice concentration ~136 kB
Ice charts ~15 MB
Ice drift forecast ~176 kB
Radar Image low resolution tile ~28 kB
Radar Image high resolution tile ~1.7 MB
MODIS optical image ~5 kB
Tile age information 0 kB (information is computed in app)