Array · collection · 2023
GHRSST L2P NOAA/ACSPO Himawari-09 AHI Pacific Ocean Region Sea Surface Temperature v2.90 dataset
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/ghh09-2p290
The H09-AHI-L2P-ACSPO-v2.90 dataset contains the Subskin Sea Surface Temperature (SST) produced by the NOAA ACSPO system from the Advanced Himawari Imager (AHI; largely identical to GOES-R/ABI) onboard the Himawari-9 (H09) satellite.
Description
The H09 is a Japanese weather satellite, the 9th of the Himawari geostationary weather satellite operated by the Japan Meteorological Agency. It was launched on November 2, 2016 into its nominal position at 140.7-deg E, and declared operational on December 13, 2022, replacing the Himawari-8.
The AHI is the primary instrument on the Himawari Series for imaging Earth’s weather, oceans, and environment with high temporal and spatial resolutions. The H08/AHI maps SST in a Full Disk (FD) area from 80E-160W and 60S-60N, with spatial resolution 2km at nadir to 15km/VZA (view zenith angle) 67-deg, and 10-min temporal sampling. The 10-min FD data are subsequently collated in time, to produce the 1-hr product, with improved coverage and reduced cloud leakages and image noise.
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The L2P data is produced in GHRSST compliant netCDF4 GDS2 format, with 24 granules per day, and a total data volume 1.2 GB/day. The near-real time (NRT) data are updated hourly, with several hours latency. The NRT files are replaced with Delayed Mode (DM) files, with a latency of approximately 2-months.
File names remain unchanged, and DM vs NRT can be identified by different time stamps and global attributes inside the files (MERRA instead of GFS for atmospheric profiles, and same day CMC L4 analyses in DM instead of one-day delayed in NRT processing). Pixel earth locations are not reported in the granules, as they remain unchanged from granule to granule. Pixel locations can be obtained using a flat lat/lon file or a Python script available via Documents tab from the dataset landing page.
Climate and Forecast (CF) metadata aware software (e.g., Panoply, xarray) can detect and map the data as is via the granule CF projection attributes and variables. The ACSPO H09 HAI SSTs are validated against quality controlled in situ data from the NOAA iQuam system (Xu and Ignatov, 2014) and continuously monitored in the NOAA SQUAM system (Dash et al, 2010). A 0.02-deg equal-angle gridded L3C product 0.7GB/day) is available at podaac.jpl.nasa.gov/dataset/H09-AHI-L3C-ACSPO-v2.90
Links
Get the data
- Resource opendap.earthdata.nasa.gov ↗
This dataset can be accessed with the Open-source Project for a Network Data Access Protocol (OPeNDAP) API framework. This service enables variable and dimensional subsetting. The URL redirects to a p
metadata API · download · from NASA CMR, data nasa gov
- Example input file for python geolocation script archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ghrsst/open/data/GDS2/L2P/H09/STAR/doc… ↗
documentation · download · from NASA CMR, data nasa gov
- In situ SST Quality Monitor v2.10 star.nesdis.noaa.gov/sod/sst/iquam ↗
documentation · download · from NASA CMR, data nasa gov
- GHRSST Project ghrsst.org ↗
documentation · download · from NASA CMR, data nasa gov
- Geolocation file in netCDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ghrsst/open/data/GDS2/L2P/H09/STAR/doc… ↗
documentation · download · from NASA CMR, data nasa gov
- PDF archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/ghrsst/open/docs/GDS20r5.pdf ↗
Documentation on the GDS version 2 format specification
documentation · download · from NASA CMR, data nasa gov
- GHRSST Global Data Assembly Center ghrsst.jpl.nasa.gov ↗
documentation · download · from NASA CMR, data nasa gov
- SST Quality Monitor 2.1 star.nesdis.noaa.gov/sod/sst/squam ↗
documentation · download · from NASA CMR, data nasa gov
- Generic Data Readers github.com/podaac/data-readers ↗
documentation · download · from NASA CMR, data nasa gov
- Data Use and Citation Guidelines podaac.jpl.nasa.gov/CitingPODAAC ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2744808497-POCLOUD.iso19115 ↗
download · from data nasa gov
- HTTPS endpoint for data browse and download cmr.earthdata.nasa.gov/virtual-directory/collections/C2744808497-POCLOUD ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2744808497-POCLOUD ↗
Browse granule search results in Earthdata Search
download · from NASA CMR
- github.com /podaac/data-subscriber ↗
This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command lin
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/ghrsst-l2p-noaa-acspo-himawari-09-ahi-pacific-ocean-re… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/ghh09-2p290 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=e13e6fac-eb7a-4ffd-9425-2d77c4e10… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2744808497-POCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2744808497-POCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- AHI · Himawari-9 · Sea Surface Subskin Temperature
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2744808497-POCLOUD | 7 d ago | JSON v1 |
| NASA Data Portal | e13e6fac-eb7a-4ffd-9425-2d77c4e10720 | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:ahi | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-temperature/sea-surface-temperature/sea-surface-subskin-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:himawari-9 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |