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ESA Sea State Climate Change Initiative (Sea_State_cci): Global remote sensing multi-mission along-track Integrated Sea State Parameters (ISSP) from SAR WV onboard Sentinel-1A & 1B, L2P product, release version 3

Update Frequency: Not Planned
Latest Data Update: 2022-10-07
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2022-10-10
DOI Publication Date: 2022-10-13
Download Stats: last 12 months
Dataset Size: 119.66K Files | 13GB


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 (referred to as SAR WV onboard Sentinel-1 Level 2P (L2P) ISSP data) with a particular focus for use in climate studies.

This dataset contains the Sentinel-1 SAR Remote Sensing Integrated Sea State Parameter product (v1.0), which forms part of the ESA Sea State CCI version 3.0 release. 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 20km resolution every 100km, processed using the Pleskachevsky et. al., 2021 emprical model, separated per satellite and pass, including all measurements with flags and uncertainty estimates. These are expert products with rich content and no data loss. The SAR Wave Mode data used in the Sea State CCI SAR WV onboard Sentinel-1 Level 2P (L2P) ISSP v3 dataset come from the Sentinel-1 satellite missions spanning from 2014 to 2021 (Sentinel-1 A, Sentinel-1 B).

Citable as:  Pleskachevsky, A.; Tings, B. (2022): ESA Sea State Climate Change Initiative (Sea_State_cci): Global remote sensing multi-mission along-track Integrated Sea State Parameters (ISSP) from SAR WV onboard Sentinel-1A & 1B, L2P product, release version 3. NERC EDS Centre for Environmental Data Analysis, 13 October 2022. doi:10.5285/fe02d5eef9ef4ad889d1917ccad3b35f.
Abbreviation: Not defined
Keywords: CCI, Sea State, Integrated Sea State Parameters, ISSP, SAR


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
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: 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 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.
File Format:
Data are in NetCDF format

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Computation Element: 1

Title Computation for the ESA Sea State Climate Change Initiative (Sea_State_cci) v3 products
Abstract For information on the derivation of the ESA Sea_State_cci v3 products please see the product user guide.
Input Description None
Output Description None
Software Reference None
Output Description


  • units: m s-1
  • long_name: 10 metre U wind component
  • var_id: wind_speed_model_u
  • units: m s-1
  • long_name: 10 metre V wind component
  • var_id: wind_speed_model_v
  • units: K
  • long_name: 2 metre temperature
  • var_id: surface_air_temperature
  • 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: Pa
  • var_id: surface_air_pressure
  • long_name: Mean sea level pressure
  • standard_name: air_pressure_at_mean_sea_level
  • units: m
  • var_id: swh_model
  • long_name: Significant height of combined wind waves and swell
  • 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
  • units: m
  • long_name: distance to nearest coast
  • var_id: distance_to_coast
  • units: 1
  • standard_name: sea_ice_area_fraction
  • var_id: sea_ice_fraction
  • long_name: fraction of sea ice in water
  • units: m
  • var_id: bathymetry
  • long_name: ocean depth
  • standard_name: sea_floor_depth_below_mean_sea_level
  • var_id: swh_quality
  • long_name: quality of C band SAR significant wave height measurement
  • 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
  • standard_name: time
  • var_id: time
  • units: seconds
  • long_name: measurement time
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