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Global Sea Ice Emissivity

IDENTIFICATION
DescriptionThe sea ice surface emissivity is representative for the near 50 GHz channels used for temperature sounding of the atmosphere using satellite radiometers such as SSMIS and AMSU. The model for computing the emissivities is described in the ATBD. It uses the brightness temperatures at 19v, 37v and 37h measured by the conically scanning SSMIS.
Product typeArchived NRT productThumbnail
StatusSuperseded
IdentifierOSI-404
AcronymGBL SIEM
Acronym for EDC (APNM)OSIEMGB
Product navigator referenceEO:EUM:DAT:DMSP:SISE50
CHARACTERISTICS
Processing levelL3
Satellite inputDMSP/SSMIS
Other inputNone
Frequency1 per day
Central time12:00
Timeliness5 h
Spatial coverageglobal
Spatial sampling10 km
Characteristics & methodsSea ice emissivity at 50GHz, daily average.
Simulated with measured coefficients
ACCURACY REQUIREMENTS
Thresold accuracy15 %
Target accuracy5 %
Optimal accuracy1 %
Verification/validation methodCompare with RTM simulations using NWP
DATA ACCESS
Diffusion mean(s) and format(s)HL FTP Server (NetCDF3)
Main FTP serverHL FTP server, last 31 days (hosted by MET Norway)Other FTP server,
other mean(s) to access main server		Archive HL FTP server
Thredds
EUMETCastEUMETCastDiscovery mean(s)
EUMETSAT Data CentreEDC
Applications and usersNWP and Ocean/Ice models, operational Met and Sea Ice services.OSI SAF ProducerDanish Meteorological Institute
VIEW MORE DOCUMENTATION
Product web pageDescriptionProduct User ManualPUM
Algorithm Theoretical Baseline DocumentATBD
Last products at a glanceQuicklookScientific Validation ReportSVR
HISTORY, COMMENTS

Was distributed on EUMETCast and on MET Norway FTP server since April 2014 (with a pre-operational status)

Operational from 02/02/2017 to 09/08/2018, superseded by OSI-404-a

Authorised to be operational/released03/11/2016
Declared operational/released02/02/2017
Expected date for operational/released31/12/2016
Last product date08/08/2018
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