Dataset: Sea Ice Thickness Climate Data Record (CDR) - v1p0#
Dataset identifier: cdr_ice_thick_nh
Data store: cmems
How to open this dataset in AVL JupyterLab
cmems_store = new_data_store('cmems')
ds = cmems_store.open_data('cdr_ice_thick_nh')
Basic information#
cmems_store = new_data_store('cmems')
ds = cmems_store.open_data('cdr_ice_thick_nh')
| Parameter | Value |
|---|---|
| Bounding box longitude (°) | -5400 to 5400 |
| Bounding box latitude (°) | -5400 to 5400 |
| Time range | 2002-10-01 to 2015-03-01 |
| Publisher | Norwegian Meteorological Institute |
Click here for full dataset metadata.
Variable list#
Click on a variable name to jump to the variable’s full metadata.
| Variable | Long name | Units |
|---|---|---|
| Lambert_Azimuthal_Grid | [none] | [none] |
| quality_flag | quality indicator flag for the sea ice thickness retrieval | [none] |
| sea_ice_thickness | thickness of the sea ice layer | m |
| status_flag | status flag for the sea ice thickness retrieval | [none] |
| time_bnds | [none] | [none] |
| uncertainty | algorithm uncertainty of the sea ice thickness retrieval | m |
Full variable metadata#
Lambert_Azimuthal_Grid#
| Field | Value |
|---|---|
| false_easting | 0.0 |
| false_northing | 0.0 |
| grid_mapping_name | lambert_azimuthal_equal_area |
| inverse_flattening | 298.257223563 |
| latitude_of_projection_origin | 90.0 |
| longitude_of_projection_origin | 0.0 |
| proj4_string | +proj=laea +lon_0=0 +datum=WGS84 +ellps=WGS84 +lat_0=90.0 |
| semi_major_axis | 6378137.0 |
quality_flag#
| Field | Value |
|---|---|
| comment | Provides an expert guess on data quality and is only computed for valid thickness retrieval (status flag: 5) |
| flag_meaning | 0: no thickness data; 1: nominal retrieval quality, no biases expected; 2: intermediate retrieval quality, bias likely; 3: low retrieval quality, bias expected |
| grid_mapping | Lambert_Azimuthal_Grid |
| long_name | quality indicator flag for the sea ice thickness retrieval |
| standard_name | sea_ice_thickness status_flag |
| unit | 1 |
| valid_max | 3 |
| valid_min | 0 |
sea_ice_thickness#
| Field | Value |
|---|---|
| ancillary_variables | uncertainty status_flag quality_indicator_flag |
| comment | this field is the primary sea ice thickness estimate for this climate data record |
| grid_mapping | Lambert_Azimuthal_Grid |
| long_name | thickness of the sea ice layer |
| standard_name | sea_ice_thickness |
| units | m |
status_flag#
| Field | Value |
|---|---|
| comment | Describes the status of the sea-ice thickness retrieval |
| flag_meaning | 0: no input data; 1: outside sea ice concentration mask; 2: latitude above orbit inclination; 3: land, lake or land ice; 4: sea ice thickness retrieval failed; 5: sea ice thickness retrieval successful |
| grid_mapping | Lambert_Azimuthal_Grid |
| long_name | status flag for the sea ice thickness retrieval |
| standard_name | sea_ice_thickness status_flag |
| unit | 1 |
| valid_max | 5 |
| valid_min | 0 |
time_bnds#
uncertainty#
| Field | Value |
|---|---|
| grid_mapping | Lambert_Azimuthal_Grid |
| long_name | algorithm uncertainty of the sea ice thickness retrieval |
| comment | algorithm uncertainty based on error propagation describes the maximum uncertainty for each grid cell |
| units | m |
Full dataset metadata#
| Field | Value |
|---|---|
| title | Sea Ice Thickness Climate Data Record (CDR) - v1p0 |
| institution | Alfred-Wegener-Institut Helmholtz Zentrum für Polar und Meeresforschung |
| source | Altimetry: cryosat2, Snow depth: Warren Climatology with 50% reduction for first-year sea ice, Mean Sea Surface: DTU15 global mean sea surface, Sea ice Concentration: C3S Sea Ice Type CDR v1p2, Sea ice type: C3S Sea Ice Type CDR v1p0 |
| platform | CryoSat-2 |
| sensor | SIRAL |
| history | 20180425T193740Z (created) |
| references | Algorithm Theoretical Baseline Document (ATBD): Sea Ice Thickness Version 2 |
| tracking_id | f25214d1-d727-44d9-b50f-32ed24c0f4b0 |
| conventions | CF-1.6 |
| product_version | 1.0 |
| processing_level | Level-3 Collated (l3c) |
| summary | Monthly gridded Northern Hemisphere Sea Ice Thickness Climate Data Record from Envisat and CryoSat-2 satellite radar altimetry for the period October 2002 - April 2015 |
| keywords | Sea Ice, Ice Depth/Thickness, Radar Altimeters |
| id | c3s-sit-cdr-v1p0-l3c-cryosat2-nh25kmEASE2-20150301 |
| naming_authority | de.awi |
| keywords_vocabulary | GCMD Science Keywords |
| doi | None |
| cdm_data_type | Grid |
| comment | Northern hemisphere sea ice thickness coverage is limited to the winter month between October and April due to negative effect of surface melt on the retrieval of freeboard. Please consult the Product User Guide (PUG) for more information. |
| date_created | 20180425T193740Z |
| creator_name | Stefan Hendricks, Robert Ricker (Alfred-Wegener-Institut Helmholtz Zentrum für Polar und Meeresforschung) |
| creator_url | http://www.awi.de |
| creator_email | stefan.hendricks@awi.de, robert.ricker@awi.de |
| project | Copernicus Climate Change Services (C3S) |
| publisher_name | Norwegian Meteorological Institute |
| publisher_url | http://met.no |
| publisher_email | |
| geospatial_lat_min | 16.6239 |
| geospatial_lat_max | 90.0 |
| geospatial_lon_min | -180.0 |
| geospatial_lon_max | 180.0 |
| geospatial_vertical_min | 0.0 |
| geospatial_vertical_max | 0.0 |
| spatial_resolution | 25.0 km grid spacing |
| geospatial_bounds_crs | EPSG:6931 |
| time_coverage_start | 2015-03-01T00:00:00 |
| time_coverage_end | 2015-03-31T23:59:59.999999 |
| time_coverage_duration | P1M |
| time_coverage_resolution | P1M |
| standard_name_vocabulary | CF |
| license | Creative Commons Attribution 4.0 International (CC BY 4.0) |