Dataset
ESA Sea State Climate Change Initiative (Sea_State_cci): Global remote sensing multi-mission along-track Integrated Sea State Parameters (ISSP) from SAR IW onboard Sentinel-1A & 1B, L2P product, release version 4
Abstract
The ESA Sea State Climate Change Initiative (CCI) project has produced global multi-sensor time-series of along-track satellite synthetic aperture radar (SAR) integrated sea state parameters (ISSP) data from Sentinel-1 Interferometric Wide Swath Mode (referred to as SAR IW image mode onboard Sentinel-1 Level 2P (L2P) ISSP data) with a particular focus for use in climate studies.
This dataset contains the Sentinel-1 SAR IW Remote Sensing Integrated Sea State Parameter product, which forms part of the ESA Sea State CCI version 4.0 release.
Sentinel-1 Interferometric Wide Swath Mode (IW) combines a large swath width with a moderate geometric resolution. The individual IW images cover approximately 200 km in azimuth and 250 km in the range direction with a pixel spacing of 10 m. This product provides along-track primary significant wave height measurements and secondary sea state parameters, calibrated with CMEMS model data and reference in situ measurements at 5 km resolution over each image, processed with the SAR-SeaStaR (SAR Sea State Retrieval) algorithm used developed at the DLR, separated per satellite and image, including all measurements with flags and uncertainty estimates. These are expert products with rich content and no data loss. The SAR IW data used in the Sea State CCI SAR IW onboard Sentinel-1 Level 2P (L2P) ISSP v4 dataset come from the Sentinel-1 satellite missions spanning from 2014 to 2024 (Sentinel-1 A, Sentinel-1 B).
Reference: Pleskachevsky, A., Tings, B., S. Wiehle, S., Imber, J., Jacobsen, S., 2022. Multiparametric sea state fields from synthetic aperture radar for maritime situational awareness. Remote Sens. Environ., vol. 280, Oct. 2022, Art. no. 113200.
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: |
Please contact the data centre for details on how to access these data.
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: |
The 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
Process overview
Instrument/Platform pairings
| Sentinel 1 Synthetic Aperture Radar (SAR) | Deployed on: Sentinel 1B |
| Sentinel 1 Synthetic Aperture Radar (SAR) | Deployed on: Sentinel 1A |
Computation Element: 1
| Title | Computation for the ESA Sea State Climate Change Initiative (Sea_State_cci) SAR release 4 products |
| Abstract | For information on the derivation of the ESA Sea_State_cci release version 4 products please see the product user guide. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- units: m
- var_id: swell_swh_primary
- standard_name: sea_surface_primary_swell_wave_significant_height
- long_name: C band Dominant swell wave height
- units: sec
- var_id: Tm1
- standard_name: sea_surface_wave_mean_period_from_variance_spectral_density_first_frequency_moment
- long_name: C band First moment period
- units: sec
- var_id: Tm0
- standard_name: sea_surface_wave_mean_period
- long_name: C band Mean wave period
- units: sec
- var_id: Tm2
- standard_name: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment
- long_name: C band Second moment period
- units: m
- var_id: swell_swh_secondary
- standard_name: sea_surface_secondary_swell_wave_significant_height
- long_name: C band Secondary swell wave height
- units: m
- standard_name: sea_surface_wind_wave_significant_height
- var_id: windwave_swh
- long_name: C band Windsea wave height
- units: sec
- var_id: windwave_period
- standard_name: sea_surface_wind_wave_mean_period
- long_name: C band Windsea wave period
- units: m
- var_id: swell_swh_primary_uncertainty
- long_name: best estimate of Dominant swell wave height standard error
- units: sec
- var_id: Tm1_uncertainty
- long_name: best estimate of First moment period standard error
- units: sec
- var_id: Tm0_uncertainty
- long_name: best estimate of Mean wave period standard error
- units: sec
- var_id: Tm2_uncertainty
- long_name: best estimate of Second moment period standard error
- units: m
- var_id: swell_swh_secondary_uncertainty
- long_name: best estimate of Secondary swell wave height standard error
- units: m
- var_id: windwave_swh_uncertainty
- long_name: best estimate of Windsea wave height standard error
- units: sec
- var_id: windwave_period_uncertainty
- long_name: best estimate of Windsea wave period standard error
- units: m
- long_name: best estimate of significant wave height standard error
- var_id: swh_uncertainty
- var_id: swh_rejection_flags
- long_name: consolidated Significant Wave height quality flags
- var_id: swh_quality
- long_name: quality of C band SAR significant wave height measurement
- var_id: time
- units: seconds
- units: m
- var_id: swh
- standard_name: sea_surface_wave_significant_height
- long_name: total C band significant wave height
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- long_name: latitude
- var_id: lat
- units: degrees_east
- standard_name: longitude
- long_name: longitude
- var_id: lon
Temporal Range
2014-10-04T00:00:00
2024-12-31T23:59:59
Geographic Extent
80.0000° |
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-180.0000° |
180.0000° |
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-80.0000° |