Dataset: ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Northern hemisphere sea ice thickness from Envisat on the satellite swath (L2P), v2.0#
Dataset identifier: esacci.SEAICE.satellite-orbit-frequency.L2P.SITHICK.RA-2.Envisat.NH.2-0.r1
Data store: cciodp
How to open this dataset in AVL JupyterLab
cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.SEAICE.satellite-orbit-frequency.L2P.SITHICK.RA-2.Envisat.NH.2-0.r1')
Bounding box map#
cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.SEAICE.satellite-orbit-frequency.L2P.SITHICK.RA-2.Envisat.NH.2-0.r1')
Map tiles and data from OpenStreetMap, under the ODbL.
Basic information#
| Parameter | Value |
|---|---|
| Bounding box longitude (°) | -180.0 to 180.0 |
| Bounding box latitude (°) | 50.0 to 81.45 |
| Time range | 2002-09-30 to 2012-03-31 |
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 |
|---|---|---|
| freeboard | freeboard of the sea ice layer | m |
| freeboard_uncertainty | freeboard uncertainty | m |
| radar_freeboard | elevation of retracked point above instantaneous sea surface height | m |
| radar_freeboard_uncertainty | algorithm uncertainty (error propagation) of the radar freeboard retrieval | m |
| sea_ice_thickness | thickness of the sea ice layer | m |
| sea_ice_thickness_uncertainty | uncertainty of the sea ice layer thickness | m |
Full variable metadata#
freeboard#
| Field | Value |
|---|---|
| long_name | freeboard of the sea ice layer |
| standard_name | sea_ice_freeboard |
| units | m |
| coordinates | time |
| orig_data_type | float64 |
| fill_value | None |
| size | 37948885 |
| shape | 37948885 |
| chunk_sizes | 18395 |
| file_chunk_sizes | 18395 |
| data_type | float64 |
| dimensions | time |
| file_dimensions | time |
freeboard_uncertainty#
| Field | Value |
|---|---|
| units | m |
| long_name | freeboard uncertainty |
| standard_name | sea_ice_freeboard standard_error |
| coordinates | time |
| orig_data_type | float32 |
| fill_value | None |
| size | 37948885 |
| shape | 37948885 |
| chunk_sizes | 18395 |
| file_chunk_sizes | 18395 |
| data_type | float32 |
| dimensions | time |
| file_dimensions | time |
radar_freeboard#
| Field | Value |
|---|---|
| comment | radar freeboard is defined as the elevation based on the assumption of vacuum light speed without a snow propagation or range penetration correction |
| units | m |
| coordinates | time |
| long_name | elevation of retracked point above instantaneous sea surface height |
| orig_data_type | float64 |
| fill_value | None |
| size | 37948885 |
| shape | 37948885 |
| chunk_sizes | 18395 |
| file_chunk_sizes | 18395 |
| data_type | float64 |
| dimensions | time |
| file_dimensions | time |
radar_freeboard_uncertainty#
| Field | Value |
|---|---|
| units | m |
| long_name | algorithm uncertainty (error propagation) of the radar freeboard retrieval |
| coordinates | time |
| orig_data_type | float64 |
| fill_value | None |
| size | 37948885 |
| shape | 37948885 |
| chunk_sizes | 18395 |
| file_chunk_sizes | 18395 |
| data_type | float64 |
| dimensions | time |
| file_dimensions | time |
sea_ice_thickness#
| Field | Value |
|---|---|
| units | m |
| long_name | thickness of the sea ice layer |
| standard_name | sea_ice_thickness |
| coordinates | time |
| orig_data_type | float64 |
| fill_value | None |
| size | 37948885 |
| shape | 37948885 |
| chunk_sizes | 18395 |
| file_chunk_sizes | 18395 |
| data_type | float64 |
| dimensions | time |
| file_dimensions | time |
sea_ice_thickness_uncertainty#
| Field | Value |
|---|---|
| long_name | uncertainty of the sea ice layer thickness |
| standard_name | sea_ice_thickness standard_error |
| units | m |
| coordinates | time |
| orig_data_type | float64 |
| fill_value | None |
| size | 37948885 |
| shape | 37948885 |
| chunk_sizes | 18395 |
| file_chunk_sizes | 18395 |
| data_type | float64 |
| dimensions | time |
| file_dimensions | time |
Full dataset metadata#
| Field | Value |
|---|---|
| title | ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Northern hemisphere sea ice thickness from Envisat on the satellite swath (L2P), v2.0 |
| source | Altimetry: Envisat SGDR (final v9.3p5), Snow depth: Warren Climatology with 50% reduction for first-year sea ice, Mean Sea Surface: DTU15 global mean sea surface, Sea ice Concentration: OSI-SAF Global Sea Ice Concentration (OSI-409), Sea ice type: ESA-SICCI multiyear ice area fraction from daily gridded NSIDC SSMI-SSMIS brightness temperatures version 4 using the NASA-Team algorithm |
| history | 20180416T153123Z (created) |
| references | Algorithm Theoretical Baseline Document, Sea Ice Climate Change Initiative: Phase 2 (version 2.2) |
| product_version | 2-0 |
| processing_level | L2P |
| 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. |
| project | Climate Change Initiative - European Space Agency |
| ecv | SEAICE |
| institute | Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung |
| product_string | NH |
| data_type | SITHICK |
| sensor_id | RA-2 |
| platform_id | Envisat |
| abstract | This dataset provides a Climate Data Record of Sea Ice Thickness for the northern hemisphere polar region, derived from the RA-2 (Radar Altimeter -2) instrument on the Envisat satellite. This product was generated in the context of the ESA Climate Change Initiative Programme (ESA CCI) by the Sea Ice CCI (Sea_Ice_cci) project. It provides daily sea ice thickness data for the winter months of October to April annually on the satellite measurement grid (Level 2P) at the full sensor resolution for the period October 2002 to March 2012. |
| publication_date | 2018-05-25T11:00:11 |
| uuid | 54e2ee0803764b4e84c906da3f16d81b |
| catalog_url | https://catalogue.ceda.ac.uk/uuid/54e2ee0803764b4e84c906da3f16d81b |
| cci_project | SEAICE |