GHRSST AATSR L2P data is provided as one per orbit, fully featured L2P format compliant file with GDS version 1.5. Coverage is global, although the product includes on only dual view observations of SST and relies on very sensitive operational cloud clearing algorithms, resulting in a lower than expected number of observations. It should be noted however that an extremely high proportion of AATSR observations of SST are of high quality. AATSR data is the only skin SST product in the HR-DDS. These data are provided through the Medspiration Project. GHRSST SEVIRI L2P data is provided on a regular map cylindrical projection, once every three hours and on a degraded 0.1 degree spatial resolution. The product is fully featured L2P compliant with GDS version 1.5. Coverage is restricted to between 60°N and 60°S, 60°W and 45°E. Data quality is very good, but SEVIRI SSTs are known to be degraded by Saharan aerosols. These data are provided through the Medspiration Project. GHRSST NAR-17 L2P data is provided as a daily merged (although in no way interpolated) multi-orbit product consisting of all AVHRR data from NOAA-17. Two products are provided daily, one for ascending orbits and one for descending. Coverage is limited to the North Atlantic Region. Data are fully L2P compliant with GDS1.5. These data are provided through the Medspiration Project. GHRSST NAR-18 L2P data is provided as a daily merged (although in no way interpolated) multi-orbit product consisting of all AVHRR data from NOAA-18. Two products are provided daily, one for ascending orbits and one for descending. Coverage is limited to the etionymous North Atlantic Region. Data are fully L2P compliant with GDS1.5. These data are provided through the Medspiration Project. GHRSST AMSRE L2P products are provided as single daily files in two layers, one for ascending orbits and one for descending. Coverage is global but the products are in the reduced L2Pc format compliant with GDS 1.7. Only the Wind Speed ancillary field is included, although there are additional experimental fields including diurnal variation magnitude and cool skin effect magnitude. These data are provided through the MISST Project. GHRSST AMSRE L2P products are provided as single daily files in two layers, one for ascending orbits and one for descending. Coverage is global but the products are in the reduced L2Pc format compliant with GDS 1.7. Only SST is included in the product. These data are provided by JAXA, the Japanese Space Agency. GHRSST TMI L2P products are provided as single daily files in two layers, one for ascending orbits and one for descending. The products are in the reduced L2Pc format compliant with GDS 1.7. Coverage is limited to between 40N and 40S. Only the Wind Speed ancillary field is included, although there are additional experimental fields. These data are provided through the MISST project. GHRSST AVHRR-17-GAC products are provided as orbital segments, over the entire globe, of AVHRR data from the NOAA-17 satellite. Data is a subset of available AVHRR SSTs and is usually sparse in nature. The product is an L2Pc format including only aerosol optical depth, but no other ancillary fields. The native resolution of the product is in the order of 9 km. These data are provided by the United States Navy. GHRSST AVHRR-18-GAC products are provided as orbital segments, over the entire globe, of AVHRR data from the NOAA-18 satellite. Data is a subset of available AVHRR SSTs and is usually sparse in nature. The product is an L2Pc format including only aerosol optical depth, but no other ancillary fields. The native resolution of the product is in the order of 9 km. These data are provided by the United States Navy GHRSST AVHRR-17-LAC products are provided as orbital segments of AVHRR data from the NOAA-17 satellite. Coverage is limited to regions of ocean within line of sight of a receiving station. Data is a subset of available AVHRR SSTs and is usually sparse in nature. The product is an L2Pc format including only aerosol optical depth, but no other ancillary fields. The native resolution of the product is in the order of 2 km. These data are provided by the United States Navy. GHRSST AVHRR-18-LAC products are provided as orbital segments of AVHRR data from the NOAA-17 satellite. Coverage is limited to regions of ocean within line of sight of a receiving station. Data is a subset of available AVHRR SSTs and is usually sparse in nature. The product is an L2Pc format including only aerosol optical depth, but no other ancillary fields. The native resolution of the product is in the order of 2 km. These data are provided by the United States Navy. This is the Medspiration / MERSEA analysed (foundation) SST product for the Mediterranean. Resolution is 1/50th of a degree (~2 km). Data is produced once per day. Data is compatible with GDS 1.5. This is the Medspiration / MERSEA analysed (foundation) SST product for the North West European Shelf. Resolution is 1/50th of a degree (~2 km). Data is produced once per day. Data is compatible with GDS 1.5. This is the NCOF / UK Met Office OSTIA product. It is a bias corrected (to the AATSR) optimal interpolation of all GHRSST SST observations and many in situ observations. Global mean bias is repeatedly shown to be negligent. OSTIA is however, thought to provide to smooth SST field. Resolution is 1/20th degree (~5 km). Data is compatible with GDS 1.5 as a L4 product. This is the NOAA Pathfinder V5 pentad night only climatology. The data is approximately 4 km resolution. Data is provided every 5 days, the HR-DDS granules for this product provide an additional interpolated gap free field. This data is not GDS compliant. This is the NCDC 1 degree global climatology. Data is gap free and produced every day. This data is not GDS compliant. This is the global 1 degree Forecast Ocean Assimilation Model as produced by the UK Met Office for the Royal Navy. The SST is representative of the SST at approximately 5m depth. This data is not GDS compliant. This is the North Atlantic 1/9th degree Forecast Ocean Assimilation Model as produced by the UK Met Office for the Royal Navy. The SST is representative of the SST at approximately 5m depth. This data is not GDS compliant. This is the Mediterranean 1/9th degree Forecast Ocean Assimilation Model as produced by the UK Met Office for the Royal Navy. The SST is representative of the SST at approximately 5m depth. This data is not GDS compliant. This is a daily 1/4th degree optimal interpolation of SST provided from the NCDC, commonly known as the 'Reynolds analysis', derived from AVHRR observations on NOAA platforms. The data is not GDS compliant. This is a daily 1/4th degree optimal interpolation of SST provided from the NCDC, commonly known as the 'Reynolds analysis', derived from AVHRR observations on NOAA platforms merged with AMSRE observations from AQUA. The data is not GDS compliant. This is twice daily gridded subskin SST L3P from the AVHRR instrument on METOP-A. Provided by the OSI-SAF, it is at 1/10th degree resolution and compliant with GDS v1.7. This is twice daily gridded subskin SST L3P from the AVHRR instrument on METOP-A. Provided by the OSI-SAF, it is at ~2 km resolution and compliant with GDS v1.7. The projection is a northern polar stereographic and coverage os strictly over the EUMETSAT North Atlantic Region. These products are provided as orbital segments of AVHRR data from the METOP-A satellite. Data is a subset of available AVHRR SSTs and is usually sparse in nature. The product is an L2Pc format including only aerosol optical depth, but no other ancillary fields. The native resolution of the product is in the order of 9 km. These data are provided by the United States Navy. This is the UK Met Office 2nd generation global wave model. Data is provided at ~60 km resolution. This data is not GDC compliant. These data are the surface observations of temperature and salinity from the ARGO profiling buoy network as provided by the MERSEA project through CORIOLIS. These data are the surface observations of temperature and salinity from the global drifting buoy network as provided by the MERSEA project through CORIOLIS.