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Daily Trajectory Summary
Data Level | Level-2 Post-Processed (L2P) |
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Data Period | Daily (between 00:00:00 and 23:59:59.999 UTC) |
Availability | CryoSat: version 2.0+ |
Data Format | netCDF v4 (Climate and forecast conventions) |
Filenaming | l2p-awi-seaice-{mission}-{timeliness}-{hemisphere}-{yyyy}{mm}{dd}-{version}.nc (e.g. l2p-awi-seaice-cryosat2-ntc-nh-20101101-v2.0.nc) |
Summary | Collection of daily along-track geophysical parameters and their uncertainties at full resolution of the altimeter. Product only includes data points with valid freeboard measurements. |
Parameters | All fields are per single altimeter data point.
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Figure: Example of daily sea-ice thickness point measurements at along-track resolution
Weekly Gridded
Data Level | Level-3 Colocated (L3C) |
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Data Period | Weekly (between Monday 00:00:00 and Sunday 23:59:59.999 UTC) |
Availability | CryoSat: version 2.0+ |
Data Format | netCDF v4 (Climate and forecast conventions) |
Filenaming | l3c-awi-seaice-{mission}-{timeliness}-{grid}-{yyyy}{mm}{dd}-{yyyy}{mm}{dd}-{version}.nc (e.g. l3c-awi-seaice-cryosat2-ntc-nh25kmEASE2-20101101-20101107-fv2.0.nc) |
Summary | Weekly gridded geophysical parameters, their uncertainties, retrieval area statistics and flags |
Grid | EASE-2 North (Lambert Azimuthal Equal Area) Projection: +proj=laea +lon_0=0 +datum=WGS84 +ellps=WGS84 +lat_0=90.0 Resolution: 25 km (Arctic) |
Parameters | Time / Geolocation:
Geophysical fields (per grid cell)
Flags (per grid cell)
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Figure: Example of weekly gridded sea-ice thickness product
Monthly Gridded
Data Level | Level-3 Colocated (L3C) |
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Data Period | Monthly (between first day 00:00:00 and 23:59:59.999 UTC last day of month) |
Availability | CryoSat version 1.2 (different file format) CryoSat: version 2.0+ |
Data Format | netCDF v4 (Climate and forecast conventions) |
Filenaming | l3c-awi-seaice-{mission}-{timeliness}-{grid}-{yyyy}{mm}{dd}-{version}.nc (e.g. l3c-awi-seaice-cryosat2-ntc-nh25kmEASE2-201011-fv2.0.nc) |
Summary | Monhtly gridded geophysical parameters, their uncertainties, retrieval area statistics and flags |
Grid | EASE-2 North (Lambert Azimuthal Equal Area) Projection: +proj=laea +lon_0=0 +datum=WGS84 +ellps=WGS84 +lat_0=90.0 Resolution: 25 km (Arctic) |
Parameters | Time / Geolocation:
Geophysical fields (per grid cell)
Flags (per grid cell)
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Figure: Example of monthly gridded sea-ice thickness product