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Product and Citation | Date Period | Spatial resolution, Temporal resolution, depth | SST data inputs | Advantages and Applications | Disadvantages | NCI Thredds Server Data Access |
IMOS HRPT AVHRR L2P (Griffin et al., 2017) | 1992 - present | 1.1 km at nadir to ~4 km at swath edges | IMOS NOAA-9 to NOAA-19 HRPT AVHRR brightness temperatures | Timeliness, well-navigated, consistently calibrated and bias-corrected using regional buoy SSTs. Routinely validated at BoM. Used for ingestion into SST analyses and IMOS OceanCurrent 4-hourly SST composite maps. | Formed from IR data so gaps in cloudy regions | Real-time (fv01): Past month: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L2P/catalog.html Previous months: Contact ghrsst@bom.gov.au Reprocessed (fv02): Contact ghrsst@bom.gov.au |
IMOS HRPT AVHRR L3U | 1992 - present | 0.02 deg, 1 file per swath, skin | IMOS NOAA-9 to NOAA-19 HRPT AVHRR L2P, OSI-SAF MetOp-A/FRAC AVHRR L2P, OSI-SAF MetOp-B FRAC AVHRR L2P, OSI-SAF MetOp-C FRAC AVHRR L2P, ACSPO NPP VIIRS L3U, ACSPO NOAA-20 VIIRS L3U | Timeliness, consistently calibrated and bias-corrected using regional buoy SSTs. Routinely validated at BoM. Regular grid. Used in RT IMOS OceanCurrent maps and fisheries applications (e.g. www.fishtrack.com) | Formed from IR data so gaps in cloudy regions | Real-time (fv01): Australian Domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3U/catalog.html Southern Ocean Domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3U-Southern/catalog.html Reprocessed(fv02): Australian Domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Continental/L3U/catalog.html Southern Ocean Domain: |
IMOS HRPT AVHRR L3C | 1992 – present | 0.02 deg, 1/3 days, day/night, skin | NOAA-9 to NOAA-19 HRPT AVHRR L3U, MetOp-A, MetOp-B and MetOp-C FRAC AVHRR L3U | Better spatial coverage than the single swath L3U SSTs. Routinely validated at BoM. Used in diurnal variation research (e.g., Zhang et al., 2016b). | Formed from IR data so gaps in cloudy regions | Real-time (fv01): Australian Domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3C-01day/catalog.html Southern Ocean Domain: Reprocessed (fv02): Australian Domain: Southern Ocean Domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3S-01day-Southern/catalog.html and https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3S-1month-Southern/catalog.html |
IMOS HRPT AVHRR L3S | 1992 - present | 0.02 deg, 1/3/6 days and 1 month, skin (day-only, night-only) or foundation (day+night) | NOAA-9 to NOAA-19 HRPT AVHRR L3C | High spatial resolution (2 km) and long time series. Routinely validated at BoM. Used in IMOS OceanCurrent, validation of ocean models, and marine heat wave and biological research. | Based on HRPT AVHRR only, so limited in spatial coverage. CAPS-based cloud identification means cloud clearing differs south of 20S (Wijfffels et al., 2018). | Real-time (fv01) Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3S-01day/catalog.html and L3S-03day, L3S-06day and L3S-1month sub-directories Southern Ocean domain: Reprocessed (fv02): Australian domain: Southern Ocean domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3S-01day-Southern/catalog.html and L3S-1month-Southern sub-directory |
IMOS METOP-AVHRR L3U | 2012 - present | 0.02 deg, 1 file per swath, skin | OSI-SAF MetOp-A/FRAC AVHRR L2P, OSI-SAF MetOp-B/FRAC AVHRR L2P, OSI-SAF MetOp-B/FRAC AVHRR L2P | Greater spatial coverage than POES HRPT AVHRR due to global METOP FRAC AVHRR coverage and Bayesian cloud identification. Improved accuracy compared with POES AVHRR SSTs. Routinely validated at BoM. | Formed from IR data so gaps in cloudy regions. | Real-time (fv01): Australian domain: Southern Ocean domain: Reprocessed (fv02): https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Continental/L3U/catalog.html in the ABOM-L3U_GHSST-SSTskin-AVHRR_MetOpA, ABOM-L3U_GHSST-SSTskin-AVHRR_MetOpB and ABOM-L3U_GHSST-SSTskin-AVHRR_MetOpC directories |
IMOS METOP-AVHRR L3C | 2012 - present | 0.02 deg, 1-day, day/night, skin | IMOS MetOp-A,B FRAC AVHRR L3U | Mutliple swaths composited, so greater spatial coverage than METOP AVHRR L3U. Routinely validated at BoM. | Formed from IR data so gaps in cloudy regions. | Real-time (fv01): Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3C-01day/catalog.html Southern Ocean domain: Reprocessed (fv02): Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Continental/L3C-01day/catalog.html in the ABOM-L3C_GHSST-SSTskin-AVHRR_MetOpA, ABOM-L3C_GHSST-SSTskin-AVHRR_MetOpB and ABOM-L3C_GHSST-SSTskin-AVHRR_MetOpC directories Southern Ocean domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3C-01day-Southern/catalog.html in the ABOM-L3C_GHSST-SSTskin-AVHRR_MetOpA, ABOM-L3C_GHSST-SSTskin-AVHRR_MetOpB and ABOM-L3C_GHSST-SSTskin-AVHRR_MetOpC directories |
IMOS VIIRS L3U | 2012 - present | 0.02 deg, 1 file per swath, skin | ACSPO NPP VIIRS L3U, ACSPO NOAA-20 VIIRS L3U | Greater spatial coverage due to global ACSPO VIIRS L3U coverage. Improved cloud identification and 0.75 – 1.5 km pixel resolution. Improved accuracy compared with POES AVHRR SSTs. Routinely validated at BoM. | Formed from IR data so gaps in cloudy regions | Real-time (fv01): Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3U/ABOM-L3U_GHRSST-SSTskin-VIIRS_NPP/catalog.html and https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3U/ABOM-L3U_GHRSST-SSTskin-VIIRS_N20/catalog.html Southern ocean domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3U-Southern/ABOM-L3U_GHRSST-SSTskin-VIIRS_NPP/catalog.html and https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3U-Southern/ABOM-L3U_GHRSST-SSTskin-VIIRS_N20/catalog.html Reprocessed (fv02): Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Continental/L3U/catalog.html in the ABOM-L3U_GHSST-SSTskin-VIIRS_NPP and ABOM-L3U_GHSST-SSTskin-VIIRS_N20 directories Southern ocean domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3U-Southern/catalog.html in the ABOM-L3U_GHSST-SSTskin-VIIRS_NPP and ABOM-L3U_GHSST-SSTskin-VIIRS_N20 directories |
IMOS VIIRS L3C | 2012 - present | 0.02 deg, 1-day, day/night, skin | IMOS NPP VIIRS L3U, IMOS NOAA-20 VIIRS L3U | Multiple granules composited, so greater spatial coverage than single granule VIIRS L3U. | Formed from IR data so gaps in cloudy regions | Real-time (fv01): Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3C-01day/catalog.html Southern Ocean domain: Reprocessed (fv02): Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Continental/L3C-01day/catalog.html in the ABOM-L3C_GHSST-SSTskin-VIIRS_NPP and ABOM-L3C_GHRSST-SSTskin-VIIRS_N20 subdirectories Southern Ocean domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3C-01day-Southern/catalog.html in the ABOM-L3C_GHSST-SSTskin-VIIRS_NPP and ABOM-L3C_GHRSST-SSTskin-VIIRS_N20 subdirectories |
IMOS Multi-sensor L3S (Govekar et al., 2022; Griffin et al., 2017; Beggs et al., 2019) | 2012 - present | 0.02 deg, 1/3/6 days and 1 month, skin (day-only, night-only) or foundation (day+night) | IMOS NOAA-15 to 19 HRPT AVHRR L3C, IMOS MetOp-A/FRAC AVHRR L3C, IMOS MetOp-B/FRAC AVHRR L3C, IMOS MetOp-B/FRAC AVHRR L3C, ACSPO NPP VIIRS L3U, IMOS NOAA-20 VIIRS L3C | Better spatial coverage and accuracy compared with IMOS AVHRR-only L3S or VIIRS L3C. Routinely validated at BoM. Used in IMOS OceanCurrent and coastal upwelling research (Beggs et al., 2018). | Formed from IR data so gaps in cloudy regions. | Real-time (fv01) Australian domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv01/L3S-01day/catalog.html and L3S-03day, L3S-06dy and L3S-1month sub-directories Southern Ocean domain: Reprocessed (fv02): Australian domain: Southern Ocean domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Southern/L3S-01day-Southern/catalog.html and L3S-1month-Southern sub-directory http://thredds.aodn.org.au/thredds/catalog/IMOS/SRS/SST/ghrsst/catalog.html in the L3SM-1d, L3SM-3d, L3SM-6d and L3SM-1m sub-directories |
IMOS MTSAT-1R L3U v2 | 2006 - 2010 | 0.05 deg, hourly, skin | IMOS MTSAT-1R/JAMI L2P v2 | Moderately accurate compared with buoys. Used for diurnal variation research. | Day/night biases in some regions. | https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/MTSAT-1R/v02.0/catalog.html |
IMOS MTSAT-1R L3U v3 | Jan – Apr 2010 | 0.05 deg, hourly, skin | IMOS MTSAT-1R/JAMI L2P v3 | Highly accurate over the Tropical Warm Pool compared with buoys, low day/night bias over Tropical Warm Pool makes it ideal for diurnal variation studies (Zhang et al., 2016a, 2018). | Only available for four months | https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/MTSAT-1R/v03.0/catalog.html |
Operational Legacy BoM Himawari-8 L2P (Griffin and Majewski, 2016) | Mar 2016 - present | 2 km at nadir, 10 min, skin | JMA Himawari-8/AHI L0 | High temporal resolution. Used as input into CSIRO’s 4-hourly SST composites for IMOS OceanCurrent . | Some residual cloud contamination. No SSES. | Real-time fv03: Available on NCI /g/data/gy24. Go to NCI Australia | Project gy24 and request to join for read access. Contact ghrsst@bom.gov.au for access details. |
Reprocessed BoM Himawari-8 L2P fv02 (Govekar et al., 2021) | 2015 - 2020 | 2 km at nadir, 10 min, skin | JMA Himawari-8/AHI L0 | High temporal resolution. More accurate than Legacy BoM Himawari-8 L2P and less cloud contamination (Govekar et al., 2021). | Available on NCI /g/data/gy24/ghrsst/v02.0fv02/Geos141/L2P/ABOM-L2P_GHRSST-SSTskin-AHI_H08. Go to NCI Australia | Project gy24 and request to join for read access. Contact ghrsst@bom.gov.au for access details. | |
Legacy Real-time IMOS Himawari-8 L3C fv03 | Oct 2017 - present | 0.02 deg, 1-hourly, 4-hourly and 1 day, skin | BoM Himawari-8/AHI L2P | Routinely validated at BoM. Greater spatial coverage and less cloud contamination than the Legacy 10-min Himwari-8 L2P data. Useful for studies of coastal upwelling and diurnal warming. | Some residual cloud contamination. Biased compared with buoy SSTs. | Real-time fv03: Available on BoM Thredds server. Contact ghrsst@bom.gov.au for access. |
IMOS Himawari-8 L3C fv02 (Govekar et al., 2021) | 2015 - 2020 | 0.02 deg, 1-hourly, 4-hourly and 1 day, skin | BoM Himawari-8/AHI L2P | Validated at BoM. Greater spatial coverage and less cloud contamination than the 10-min Himwari-8 L2P data. Useful for studies of coastal upwelling and diurnal warming. | Some residual cloud contamination. | L3C-04hour: L3C-01day night: |
IMOS Geo-Polar Multi-sensor L3S fv02 (Govekar et al., 2021) | 2015 - 2020 | 0.02 deg, 1-hourly, 4-hourly and 1 day, skin | IMOS Himawari-8 fv02 L3C, IMOS fv02 NOAA-15/18/19 HRPT AVHRR L3C, IMOS fv02 MetOp-A/FRAC AVHRR L3C, IMOS fv02 MetOp-B/FRAC AVHRR L3C, IMOS fv02 MetOp-C/FRAC AVHRR L3C, ACSPO NPP VIIRS L3U, IMOS NOAA-20 VIIRS L3C | Validated at BoM. Better spatial coverage and similar accuracy compared with IMOS AVHRR-only L3S, IMOS Multi-sensor L3S, 1-day VIIRS L3C or 1-day Himawari-8 L3C. | Formed from IR data so still some gaps in cloudy regions. | Reprocessed fv02: Australian Domain: https://dapds00thredds.nci.org.au/thredds/catalog/qm43/ghrsst/v02.0fv02/Continental/L3S-01day/night/catalog.html(look for filename containing string 'GeoPolar'). |
| Operational BoM RAMSSA L4 (Beggs, 2021; Beggs et al., 2020) | Jun 2006 - present | 1/12 deg, daily, foundation Domain: 60oE to 190oE, 70oS to 20oN. | In situ SST from drifting buoys, moorings, ships, Argo, XBT, CTD (from GTS), | Includes microwave data so measures SST under cloud. Gap-free, daily spatial coverage. Moderately accurate compared with independent buoys; | Only available from 2006. Lower feature resolution and less accurate than IMOS Multi-sensor L3S. | Available on NCI /g/data/gy24/ghrsst/RAMSSA_2.0. Go to NCI Australia | Project gy24 and request to join for read access. Contact ghrsst@bom.gov.au for access details. Available on AODN Thredds server at http://thredds.aodn.org.au/thredds/catalog/IMOS/SRS/SST/ghrsst/L4/RAMSSA/catalog.html |
| Operational BoM GAMSSA L4 (Beggs, 2021; Beggs et al., 2020) | Jul 2008 - present | 0.25 deg, daily, foundation Domain: -180oE to 180oE, 90oS to 90oN. | In situ SST from drifting buoys, moorings, ships (from GTS), | Includes microwave data so measures SST under cloud. Gap-free, daily spatial coverage. Moderately accurate compared with independent Argo SST data (STD < 0.5 K). Moderate feature sensitivity. Used for boundary condition of BoM NWP models, initialising BoM seasonal prediction model and SST | Only available from 2008. | Available on NCI /g/data/gy24/ghrsst/GAMSSA_2.0. Go to NCI Australia | Project gy24 and request to join for read access. Contact ghrsst@bom.gov.au for access details. Available on AODN Thredds server at http://thredds.aodn.org.au/thredds/catalog/IMOS/SRS/SST/ghrsst/L4/GAMSSA/catalog.html |
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