Full description
Daily maps of gridded sea level anomaly (GSLA), gridded sea level (GSL) and surface geostrophic velocity (UCUR, VCUR) for the Australasian region. GSLA is mapped using optimal interpolation of detided, de-meaned, inverse-barometer-adjusted altimeter and coastal tide gauge estimates of sea level. Altimeter SSHA (sea surface height anomaly) was obtained from the RADS database and uses the most recent corrections (as of March 2020). Tide gauge data was obtained from the Bureau of Meteorology’s Australian Baseline Sea Level Monitoring Project.GSL is obtained by adding an estimate of the Mean Dynamic Height using the mean of an 18yr run of OFAM3 (Ocean Forecasting Australia Model version 3). UCUR and VCUR, are the total geostrophic surface velocities estimated from the GSL. UCUR_MEAN and VCUR_MEAN are the geostrophic surface velocities due to the Mean Dynamic Height.
The altimeter data window for input to the Delayed Mode (DM) maps is symmetrical about the map date. The width of the window is dependent on the number of altimeters flying at the time and ranges from 30 days to 14 days. The altimeter data window for Near Real Time (NRT) maps is asymmetrical about the analysis date (-21 to 4 days). For both NRT and DM, altimeter data is weighted by the difference between the analysis date of the map and the time of each altimeter observation.
DM02 - Delayed Mode GSLA version 02
DM02 GSLA is a complete update of the previous version, DM01 using the latest corrections and applies a long-wave correction to the non-reference mission altimeter SSHA to revise all daily maps from 1993-2020.
Since April 2023, this DM02 product has been available via the AODN Portal, and supersedes the DM01 product formerly provided. The DM01 data is no longer updated, and is still available via
https://catalogue-imos.aodn.org.au:443/geonetwork/srv/api/records/c68b6e1b-98a6-415e-8563-f526e1db1bd5.
References: http://oceancurrent.imos.org.au/
Lineage
Maintenance and Update Frequency: asNeededNotes
CreditAustralia’s Integrated Marine Observing System (IMOS) is enabled by the National Collaborative Research Infrastructure Strategy (NCRIS). It is operated by a consortium of institutions as an unincorporated joint venture, with the University of Tasmania as Lead Agent.
CSIRO Oceans & Atmosphere - Hobart
Created: 08 02 2023
Spatial Coverage And Location
text: westlimit=57.00000000000001; southlimit=-59.99999999999999; eastlimit=185.00; northlimit=10.00
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(NetCDF files via THREDDS catalog - Delayed Mode data)
uri :
https://thredds.aodn.org.au/thredds/catalog/IMOS/OceanCurrent/GSLA/DM/catalog.html
(NetCDF files via THREDDS catalog - yearly aggregated Delayed Mode data)
uri :
https://thredds.aodn.org.au/thredds/catalog/IMOS/OceanCurrent/GSLA/DM/yearfiles/catalog.html
(OceanCurrent web site)
uri :
http://oceancurrent.imos.org.au/
(View and download data though the AODN Portal)
uri :
https://portal.aodn.org.au/search?uuid=da30c0b8-4978-4a26-915e-b80c88bb4510
Sea water velocity - delayed - WMS layer (gsla_fv02_dm_timeseries_url/surface_geostrophic_sea_water_velocity)
uri :
https://geoserver-123.aodn.org.au/geoserver/ncwms
The GoGoDuck subsets and aggregates gridded data. Data is returned as a NetCDF file. (gsla_fv02_dm_timeseries_url)
uri :
https://processes.aodn.org.au/wps
(GoGoDuck help documentation)
uri :
https://help.aodn.org.au/web-services/gogoduck-aggregator/
The ncUrlList is a WFS service that returns a list of URLs matching a query. (gsla_fv02_dm_timeseries_url#file_url)
uri :
https://geoserver-123.aodn.org.au/geoserver/ows
(ncUrlList help documentation)
uri :
https://help.aodn.org.au/web-services/ncurllist-service/
- global : da30c0b8-4978-4a26-915e-b80c88bb4510