Dataset
ESA Sea State Climate Change Initiative (Sea_State_cci) : Global remote sensing daily merged multi-mission along-track significant wave height from altimetry, L3 product, version 3
Abstract
The ESA Sea State Climate Change Initiative (CCI) project has produced global daily merged multi-sensor time-series of along-track satellite altimeter significant wave height data (referred to as Level 3 (L3) data) with a particular focus for use in climate studies.
This dataset contains the Version 3 Remote Sensing Significant Wave Height product, which provides along-track data at approximately 6 km spatial resolution. It has been generated from upstream Sea State CCI L2P products, edited and merged into daily products, retaining only valid and good quality measurements from all altimeters over one day, with simplified content (only a few key parameters). This is close to what is delivered in Near-Real Time by the CMEMS (Copernicus - Marine Environment Monitoring Service) project. It covers the date range from 2002-2021.
The altimeter data used in the Sea State CCI dataset v3 come from multiple satellite missions (Envisat, CryoSat-2, Jason-1, Jason-2, Jason-3, SARAL, Sentinel-3A), therefore spanning over a shorter time range than version 1.1. Unlike version 1.1, this version 3 involved a complete and consistent retracking of all the included altimeters. Many altimeters are bi-frequency (Ku-C or Ku-S) and only measurements in Ku band were used, for consistency reasons, being available on each altimeter but SARAL (Ka band).
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s): https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_sea_state_terms_and_conditions.pdf When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data was produced by the ESA Sea State CCI team at Ifremer and was transferred to CEDA as part of the ESA CCI Open Data Portal project. |
| Data Quality: |
This product is a subset of the L2P products whose data were quality checked and compared to in situ reference data. For more details on the validation process, refer to the product user guide.
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| File Format: |
Data are in NetCDF format
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Related Documents
| ESA CCI Sea State project website |
| Product User Guide |
Citations: 2
The following citations have been automatically harvested from external sources associated with this resource where DOI tracking is possible. As such some citations may be missing from this list whilst others may not be accurate. Please contact the helpdesk to raise any issues to help refine these citation trackings.
| Henke, M., Miesse, T., de Lima, A. de S., Ferreira, C.M. & Ravens, T.M. (2024) Increasing coastal exposure to extreme wave events in the Alaskan Arctic as the open water season expands. Communications Earth & Environment 5. https://doi.org/10.1038/s43247-024-01323-9 https://doi.org/10.1038/s43247-024-01323-9 |
| Henke, M.T., Miesse, T., de Souza de Lima, A., Ferreira, C., Ravens, T. & Pundt, R. (2024) Evolving Arctic maritime hazards: Declining sea ice and rising waves in the Northwest Passage. Proceedings of the National Academy of Sciences 121. https://doi.org/10.1073/pnas.2400355121 https://doi.org/10.1073/pnas.2400355121 |
Process overview
Instrument/Platform pairings
| Radar Altimeter 2 (RA-2) | Deployed on: Envisat |
| The SAR Interferometer Radar Altimeter (SIRAL) | Deployed on: CryoSat-2 |
| Poseidon-2 | Deployed on: JASON-1 |
| Poseidon-3 | Deployed on: JASON-2 |
| Poseidon-3B | Deployed on: JASON-3 |
| AltiKa | Deployed on: SARAL (Satellite with ARGOS and AltiKa) |
| Sentinel 3 Synthetic Aperture Radar Altimeter (SRAL) | Deployed on: Sentinel 3A |
Computation Element: 1
| Title | Derivation of ESA Sea State Climate Change Initiative (Sea_State_cci): Global remote sensing multi-mission along-track significant wave height from altimetery, version 3 datasets |
| Abstract | For information on the derivation of the Sea_State_cci Global remote sensingmulti-mission along-track significant wave height from altimetery version 3 products please see the product user guide. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- units: m
- long_name: Ku band adjusted significant wave height
- standard_name: sea_surface_wave_significant_height
- var_id: swh_denoised
- units: dB
- var_id: sigma0
- standard_name: surface_backwards_scattering_coefficient_of_radar_wave
- long_name: Ku band backscatter coefficient
- units: m
- var_id: swh
- standard_name: sea_surface_wave_significant_height
- long_name: Ku band significant wave height
- units: m
- long_name: best estimate of significant wave height standard error
- var_id: swh_uncertainty
- var_id: cycle_number
- long_name: cycle number of satellite associated with measurement
- units: m
- long_name: distance to nearest coast
- var_id: distance_to_coast
- units: m
- var_id: bathymetry
- long_name: ocean depth
- standard_name: sea_floor_depth_below_mean_sea_level
- long_name: relative pass number of satellite associated with measurement
- var_id: relative_pass_number
- long_name: satellite associated with measurement
- var_id: satellite
Co-ordinate Variables
- units: degree_north
- standard_name: latitude
- var_id: lat
- units: degree_east
- standard_name: longitude
- var_id: lon
- standard_name: time
- var_id: time
- units: seconds
- long_name: time of measurement
Temporal Range
2002-01-15T00:00:00
2021-01-01T23:59:59
Geographic Extent
80.0000° |
||
-180.0000° |
180.0000° |
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-80.0000° |