Dataset

IMOS - Satellite Remote Sensing - SST - L3C - Himawari-8 - 1 day - night time - Australia

This is a regional GHRSST level 3 collated (L3C) dataset on 0.02-degree rectangular grid over the Australasian domain (70E to 190E, 70S to 20N) based on retrievals from the AHI imager on board Himawari-8 satellite. The Bureau of Meteorology (Bureau) produces Integrated Marine Observing System (IMOS) satellite SST products in the International Group for High Resolution SST (GHRSST) GDS2 file formats for Himawari-8 in real time and delayed mode. This product is composed of reprocessed multi-swath SSTskin retrievals obtained from compositing IMOS Himawari-8 hourly L3C files over the night (before dawn). Every 10 minutes, the Himawari-8 full disk is processed to retrieve SSTs by using the Radiative Transfer Model (RTTOV12.3) and Bayesian cloud clearing method based on the ESA CCI SST code developed at the University of Reading. The hourly product on native grid is then produced by compositing over multiple swaths for the previous 1 hour. Further, L3C-01day SST fields on native grid are obtained by selecting the highest quality data from the hourly SST records with priority being given to the value the closest in time to the product nominal hour. The L3C-1day night product on native grid is then remapped over the 0.02-degree IMOS grid to compose IMOS L3C-1day night product (Govekar et al., 2021, https://www.foo.org.au/wp-content/uploads/2021/11/Govekar_FOO_2021.pdf). The product format is compliant with the GHRSST Data Specification (GDS) version 2.

Data and Resources

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Sea Surface Temperatures Derived from Satellite Data
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NetCDF files via THREDDS catalog
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View and download data though the AODN Portal
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srs_ghrsst_l3c_1d_h08_ngt_url/sea_surface_temperature
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WCM

srs_ghrsst_l3c_1d_h08_ngt_url
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GoGoDuck help documentation
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srs_ghrsst_l3c_1d_h08_ngt_url#file_url
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ncUrlList help documentation
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Access To AWS Open Data Program registry for the Cloud Optimised version of this dataset
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Access to Jupyter notebook to query Cloud Optimised converted dataset
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Website of the Integrated Marine Observing System (IMOS)
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PNG

Unnamed resource
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Unnamed resource
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Additional Information

Field	Value
Published (Metadata Record)	04/03/2026
Last updated	05/03/2026
Organisation	Australian Federal Government
License	License Not Specified
Update Frequency	Unknown