North Atlantic Regional Sea Surface Temperature
| IDENTIFICATION | ||
| Description | NAR product consists in Metop/AVHRR and SNPP/VIIRS derived sub-skin Sea Surface Temperature over North Atlantic and European Seas at 2 km resolution four times a day. | |
|---|---|---|
| Product type | Near real time product |  |
| Status | Operational | |
| Identifier | OSI-202-b | |
| Acronym | NAR SST | |
| Acronym for EDC (APNM) | OSSTNARN | |
| Product navigator reference | EO:EUM:DAT:MULT:OSSTNARN | |
| CHARACTERISTICS | |
| Processing level | L3C |
|---|---|
| Satellite input | Metop-B/AVHRR and NPP/VIIRS |
| Other input | ECMWF outputs (temperature, humidity and aerosols profiles) |
| Frequency | 4 per day |
| Timeliness | 6h |
| Spatial coverage | North Atlantic |
| Spatial sampling | 2 km |
| Projection | polar stereographic |
| Characteristics & methods | Subskin temperature; multispectral algorithm + use of NWP output |
| ACCURACY REQUIREMENTS | |
| Thresold accuracy | monthly bias : 1°c, Sdt Deviation : 1,5°c |
|---|---|
| Target accuracy | monthly bias : 0,5°c, Sdt Deviation : 0,8°c |
| Optimal accuracy | monthly bias : 0,1°c, Sdt Deviation : 0,3°c |
| Verification/validation method | routine comparison with drifting buoy measurements |
| DATA ACCESS | |||
| Diffusion mean(s) and format(s) | EUMETCast (NetCDF4) LML FTP Server (NetCDF4) EDC (GRIB2) EDC (NetCDF4) | ||
|---|---|---|---|
| Main FTP server | LML FTP server (hosted by Ifremer) | Other FTP server, other mean(s) to access main server | backup LML FTP server (last 7 days) Thredds HTTPS |
| EUMETCast | EUMETCast | Discovery mean(s) | Naiad |
| EUMETSAT Data Centre | EDC | ||
| Redistribution | PODAAC-GHNMB-3CO02 (Metop B - GDS 2) https://podaac.jpl.nasa.gov/dataset/AVHRR_SST_METOP_B_NAR-OSISAF-L3C-v1.0 PODAAC-GHVRS-3CNO1 (NPP - GDS 2) http://podaac.jpl.nasa.gov/dataset/VIIRS_SST_NPP_NAR-OSISAF-L3C-v1.0 | ||
| Applications and users | Atmosphere and ocean models Oceanography and fisheries. | OSI SAF Producer | Météo-France |
| VIEW MORE | DOCUMENTATION | ||
| Product User Manual | PUM | ||
|---|---|---|---|
| Live production status | Status | Algorithm Theoretical Baseline Document | ATBD |
| Last products at a glance | Quicklook | Scientific Validation Report | SVR |
| Continuous monitoring | Quality | ||
| HISTORY, COMMENTS | |
12/01/2017: Stop the GRIB dissemination. The product is now provided only in NetCDF. This product format is compliant with the Data Specification (GDS) version 2 from the Group for High Resolution Sea Surface Temperatures (GHRSST). | |
| Authorised to be operational/released | 23/02/2016 |
|---|---|
| Declared operational/released | 23/02/2016 |
| On EUMETCast since | 23/02/2016 |
| In EDC since | 23/03/2016 |
