GHRSST Level 4 K10_SST Global 10 km Analyzed Sea Surface Temperature from Naval Oceanographic Office (NAVO) in GDS2.0

GHRSST Level 4 K10_SST Global 10 km Analyzed Sea Surface Temperature from Naval Oceanographic Office (NAVO) in GDS2.0
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DOI10.5067/GHK10-L4N01
Short NameK10_SST-NAVO-L4-GLOB-v01
DescriptionThis is a Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature (SST) analysis dataset produced daily on an operational basis by the Naval Oceanographic Office (NAVO) on a global 0.1x0.1 degree grid. The K10 (NAVO 10-km gridded SST analyzed product) L4 analysis uses SST observations from the following instruments: Advanced Very High Resolution Radiometer (AVHRR), Visible Infrared Imaging Radiometer Suite (VIIRS), and Spinning Enhanced Visible and InfraRed Imager (SEVIRI). The AVHRR data for this comes from the MetOp-A, MetOp-B, and NOAA-19 satellites; VIIRS data is sourced from the Suomi_NPP satellite; SEVIRI data comes from the Meteosat-8 and -11 satellites. The age (time-lag), reliability, and resolution of the data are used in the weighted average with the analysis tuned to represent SST at a reference depth of 1-meter. Input data from the AVHRR Pathfinder 9km climatology dataset (1985-1999) is used when no new satellite SST retrievals are available after 34 days. Comparing with its predecessor (DOI: https://doi.org/10.5067/GHK10-L4N01 ), this updated dataset has no major changes in Level-4 interpolated K10 algorithm, except for using different satellite instrument data, and updating metadata and file format. The major updates include: (a) updated and enhanced the granule-level metadata information, (b) converted the SST file from GHRSST Data Specification (GDS) v1.0 to v2.0, (c) added the sea_ice_fraction variable to the product, and (d) updated the filename convention to reflect compliance with GDS v2.0.
Version1.0
Dataset TypeOPEN
MeasurementOceans > Ocean Temperature > Sea Surface Temperature > Sea Surface Temperature 1m
Processing Level4
CoverageRegion: Global
Northernmost Latitude: 90 degrees
Southernmost Latitude: -90 degrees
Westernmost Longitude: -180 degrees
Easternmost Longitude: 180 degrees
Time Span: 2018-Oct-01 to Present
ResolutionSpatial Resolution: 0.1 degrees (Latitude) x 0.1 degrees (Longitude)
Temporal Resolution: 1 Day
ProjectionType: Equidistant cylindrical lat-lon
Detail: Regular 0.1 degree grid
Ellipsoid: WGS 84
Latency24 hours
Platform/Sensor
METOP-A
Platform
Name: Meteorological Operational Satellite - A (METOP-A)
Orbit Period: 101.3 minutes
Inclination Angle: 98.7 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
AVHRR
SENSOR
Name: Advanced Very High Resolution Radiometer (AVHRR)
Swath Width: 2400 km
Description: Advanced Very High Resolution Radiometer. This radiometer has the capability to provide detailed maps of thermal radiation from the sea surface, and clouds. The AVHRR operates in two modes: 1) High Resolution Picture Image or HRPT mode, which are high density images with 1km resolution, and are transmitted directly to local ground stations and 2) Global Area Coverage, or GAC mode, which are the same observations as are transmitted during the HRPT mode, but averaged together to obtain a value representative of an area 4km in diameter. GAC data are digitized and recorded on the satellite to provide global coverage.

MSG2
Platform
Name: Meteosat Second Generation 2 (MSG2)
Orbit Period: -999 minutes
Inclination Angle: -999 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
SEVIRI
SENSOR
Name: Spinning Enhanced Visible and Infrared Imager (SEVIRI)
Swath Width: 11140 km
Description: The Spinning Enhanced Visible and InfraRed Imager (SEVIRI) has the capacity to observe the Earth in 12 spectral channels. Eight of these channels are in the thermal infrared, providing among other information, observations of the temperatures of clouds, land and sea surfaces at approximately 5 km resolution with a 15 minute duty cycle.

SUOMI-NPP
Platform
Name: Suomi National Polar-orbiting Partnership (SUOMI-NPP)
Orbit Period: 101 minutes
Inclination Angle: 97.1 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
VIIRS
SENSOR
Name: Visible Infrared Imaging Radiometer Suite (VIIRS)
Swath Width: 3040 km
Description: VIIRS is a 22-band radiometer to collect infrared and visible light for earth system monitoring

METOP-B
Platform
Name: Meteorological Operational Satellite - B (METOP-B)
Orbit Period: 101.3 minutes
Inclination Angle: 98.7 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
AVHRR
SENSOR
Name: Advanced Very High Resolution Radiometer (AVHRR)
Swath Width: 2400 km
Description: Advanced Very High Resolution Radiometer. This radiometer has the capability to provide detailed maps of thermal radiation from the sea surface, and clouds. The AVHRR operates in two modes: 1) High Resolution Picture Image or HRPT mode, which are high density images with 1km resolution, and are transmitted directly to local ground stations and 2) Global Area Coverage, or GAC mode, which are the same observations as are transmitted during the HRPT mode, but averaged together to obtain a value representative of an area 4km in diameter. GAC data are digitized and recorded on the satellite to provide global coverage.

MSG4
Platform
Name: Meteosat Second Generation 4 (MSG4)
Orbit Period: -999 minutes
Inclination Angle: -999 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
SEVIRI
SENSOR
Name: Spinning Enhanced Visible and Infrared Imager (SEVIRI)
Swath Width: 11140 km
Description: The Spinning Enhanced Visible and InfraRed Imager (SEVIRI) has the capacity to observe the Earth in 12 spectral channels. Eight of these channels are in the thermal infrared, providing among other information, observations of the temperatures of clouds, land and sea surfaces at approximately 5 km resolution with a 15 minute duty cycle.

ProjectGroup for High Resolution Sea Surface Temperature (GHRSST)
Data ProviderCreator: Naval Oceanographic Office
Release Place: Naval Oceanographic Office, Stennis Space Center, MS, USA
Release Date: 2018-Dec-29
Resource: none
Keyword(s)GHRSST, sea surface temperature, Level 4, sst, L4, NAVO, k10, k10_sst, GDS2
Persistent IDPODAAC-GHK10-L4N01
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
User's Guide
GDS2 User Manualhttps://podaac-tools.jpl.nasa.gov/drive/files/OceanTemperature/ghrsst/docs/GDS20r5.pdf
Documentation on the GDS version 2 format specification
Project Materials
K10_building_procedurehttps://podaac-opendap.jpl.nasa.gov/opendap/allData/ghrsst/data/GDS2/L4/GLOB/NAVO/K10_SST/docs/contents.html
GHRSST Projecthttps://ghrsst.jpl.nasa.gov
Portal to the GHRSST Global Data Assembly Center and data access
Journal References
GMPE_Matthew_2012https://podaac-opendap.jpl.nasa.gov/opendap/allData/ghrsst/data/GDS2/L4/GLOB/NAVO/K10_SST/docs/GMPE_Matthew_2012.pdf
Citation Naval Oceanographic Office. 2018. GHRSST Level 4 K10_SST Global 10 km Analyzed Sea Surface Temperature from Naval Oceanographic Office (NAVO) in GDS2.0. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHK10-L4N01.

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For more information see Data Citations and Acknowledgments.

Journal Reference M. Martin, et al., 2012, Group for High Resolution Sea Surface temperature (GHRSST) analysis fields inter-comparisons. Part 1: A GHRSST multi-product ensemble (GMPE), Deep-Sea Research II,