High Latitude L2 Sea and Sea Ice Surface Temperature

IDENTIFICATION
DescriptionThis product, in GHRSST compliant netCDF format, is a stand-alone High Latitude Level 2 Surface Temperature product. It consists of Sea and Sea Ice Surface temperatures (SST and IST) and an unvalidated test temperature field, Land Ice Surface Temperature (LIST) for the Greenland and Antarctic ice caps. The product covers the sea and ice areas polewards of latitudes 50N and 50S with 3-minute data segments in Level 2, with data processed and archived continuously throughout the day, as they become available (approximately 110 3-minute segments per day per hemisphere). The product is derived from Metop-A AVHRR data and cloud mask data using the PPS software from the NWC SAF.
Product typeNear real time productThumbnail
StatusDevelopment
IdentifierOSI-205-b
AcronymHL L2 SST/IST
CHARACTERISTICS
Processing levelL2
Satellite inputNPP/VIIRS
FrequencyUp to 15 files/day
Central timeNA
Timeliness3h
Spatial coveragePoleward of 50N
Spatial sampling1 km
ProjectionSwath
Characteristics & methodsSST: subskin temperature.
IST: skin temperature.
Multispectral algorithms.
Including uncertainties.
ACCURACY REQUIREMENTS
Thresold accuracySST bias: 1.5 K SST std: 1,5 K; IST bias: 2.5 / 4.5 K IST std: 3.0 / 4.0 K
Target accuracySST bias: 0.7 K SST std: 1.0 K; IST bias: 1.5 / 3.5 K IST std: 2.0 / 3.0 K
Optimal accuracySST bias: 0.1 K SST std: 0.3 K; IST bias: 0.5 / 0.8 K IST std: 0.8 / 1.0 K
Verification/validation methodSST: Comparison with buoy observations. IST: IST: comparison IR radiometer when available and with buoy measurements on the ice
DATA ACCESS
Diffusion mean(s) and format(s)EUMETCast (NetCDF4)
EDC (NetCDF4)
HL FTP Server (NetCDF4)
Main FTP serverOther FTP server,
other mean(s) to access main server


EUMETCastEUMETCastDiscovery mean(s)
EUMETSAT Data CentreEDC
Applications and users* Operational Met Services, * Operational analyses and ocean models, * Research or Environmental monitoringOSI SAF ProducerNorwegian Meteorological Institute
VIEW MORE DOCUMENTATION
HISTORY, COMMENTS

See also OSI-205-a (same product but based on Metop-B data)

Authorised to be operational/released10/10/2018