Data

IMOS - OceanCurrent - Gridded sea level anomaly - Delayed mode - DM02

Integrated Marine Observing System
Integrated Marine Observing System (IMOS)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://catalogue-imos.dev.aodn.org.au/geonetwork/srv/eng/search?uuid=da30c0b8-4978-4a26-915e-b80c88bb4510&rft.title=IMOS - OceanCurrent - Gridded sea level anomaly - Delayed mode - DM02&rft.identifier=http://catalogue-imos.dev.aodn.org.au/geonetwork/srv/eng/search?uuid=da30c0b8-4978-4a26-915e-b80c88bb4510&rft.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 The DM01 data is no longer updated, and is still available via https://catalogue-imos.aodn.org.au:443/geonetwork/srv/api/records/c68b6e1b-98a6-415e-8563-f526e1db1bd5.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/Maintenance and Update Frequency: asNeeded&rft.creator=Integrated Marine Observing System (IMOS) &rft.date=2023&rft.coverage=westlimit=57.00000000000001; southlimit=-59.99999999999999; eastlimit=-175; northlimit=10.00&rft.coverage=westlimit=57.00000000000001; southlimit=-59.99999999999999; eastlimit=-175; northlimit=10.00&rft_rights=Data, products and services from IMOS are provided as is without any warranty as to fitness for a particular purpose.&rft_rights=&rft_rights= http://creativecommons.org/licenses/by/4.0/&rft_rights=https://licensebuttons.net/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=The citation in a list of references is: IMOS [year-of-data-download], [Title], [data-access-URL], accessed [date-of-access].&rft_rights=Any users of IMOS data are required to clearly acknowledge the source of the material derived from IMOS in the format: Data was sourced from Australia’s Integrated Marine Observing System (IMOS) – IMOS is enabled by the National Collaborative Research Infrastructure strategy (NCRIS). If relevant, also credit other organisations involved in collection of this particular datastream (as listed in 'credit' in the metadata record).&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0&rft_subject=oceans&rft_subject=SEA SURFACE HEIGHT&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=SEA SURFACE TOPOGRAPHY&rft_subject=EDDIES&rft_subject=OCEAN CIRCULATION&rft_subject=GYRES&rft_subject=OCEAN CURRENTS&rft_subject=Oceans | Ocean Circulation | Upwelling&rft_subject=Satellite Altimetry&rft_subject=Global / Oceans | Indian Ocean&rft_subject=Global / Oceans | Southern Ocean&rft_subject=Global / Oceans | Pacific Ocean&rft_subject=Marine Features (Australia) | Great Australian Bight, SA/WA&rft_subject=Marine Features (Australia) | Bass Strait, TAS/VIC&rft_subject=Regional Seas | Tasman Sea&rft_subject=Regional Seas | Coral Sea&rft_subject=Regional Seas | Solomon Sea&rft_subject=Regional Seas | Arafura Sea&rft_subject=Regional Seas | Timor Sea&rft_subject=Regional Seas | Banda Sea&rft_subject=Regional Seas | Java Sea&rft_subject=Regional Seas | Philippine Sea&rft_subject=Regional Seas | South China Sea&rft_subject=Regional Seas | Celebes Sea&rft_subject=Marine Features | Strait of Malacca&rft_subject=Regional Seas | Gulf of Thailand&rft_subject=States, Territories (Australia) | Queensland&rft_subject=Countries | Singapore&rft_subject=Countries | India&rft_subject=Offshore Islands (Australia) | Macquarie Island&rft_subject=Countries | Philippines&rft_subject=States, Territories (Australia) | New South Wales&rft_subject=Countries | Papua New Guinea&rft_subject=States, Territories (Australia) | Tasmania&rft_subject=Countries | Australia&rft_subject=States, Territories (Australia) | Victoria&rft_subject=Countries | Sri Lanka&rft_subject=Countries | New Caledonia&rft_subject=States, Territories (Australia) | South Australia&rft_subject=Countries | Vanuatu&rft_subject=States, Territories (Australia) | Western Australia&rft_subject=Countries | Fiji&rft_subject=States, Territories (Australia) | Northern Territory&rft_subject=Countries | Timor-Leste&rft_subject=Countries | Indonesia&rft_subject=Countries | Malaysia&rft_subject=Countries | New Zealand&rft_subject=orbiting satellite&rft_subject=Eastward geostrophic current velocity in the water body&rft_subject=Sea surface height anomaly&rft_subject=Sea surface height above geoid&rft_subject=Northward geostrophic current velocity in the water body&rft_subject=IMOS OceanCurrent&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International License
http://creativecommons.org/licenses/by/4.0

Data, products and services from IMOS are provided "as is" without any warranty as to fitness for a particular purpose.

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License Text

The citation in a list of references is: "IMOS [year-of-data-download], [Title], [data-access-URL], accessed [date-of-access]."

Any users of IMOS data are required to clearly acknowledge the source of the material derived from IMOS in the format: "Data was sourced from Australia’s Integrated Marine Observing System (IMOS) – IMOS is enabled by the National Collaborative Research Infrastructure strategy (NCRIS)." If relevant, also credit other organisations involved in collection of this particular datastream (as listed in 'credit' in the metadata record).

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Brief 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: asNeeded

Notes

Credit
Australia’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.
Credit
CSIRO Oceans & Atmosphere - Hobart

Created: 08 02 2023

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-175,10 -175,-60 57,-60 57,10 -175,10

-59,-25

text: westlimit=57.00000000000001; southlimit=-59.99999999999999; eastlimit=-175; northlimit=10.00

Subjects
Countries | Australia | Countries | Fiji | Countries | India | Countries | Indonesia | Countries | Malaysia | Countries | New Caledonia | Countries | New Zealand | Countries | Papua New Guinea | Countries | Philippines | Countries | Singapore | Countries | Sri Lanka | Countries | Timor-Leste | Countries | Vanuatu | EARTH SCIENCE | Eddies | Eastward geostrophic current velocity in the water body | Gyres | Global / Oceans | Indian Ocean | Global / Oceans | Pacific Ocean | Global / Oceans | Southern Ocean | IMOS OceanCurrent | Marine Features (Australia) | Bass Strait, TAS/VIC | Marine Features (Australia) | Great Australian Bight, SA/WA | Marine Features | Strait of Malacca | Northward geostrophic current velocity in the water body | OCEAN CIRCULATION | Ocean Currents | OCEANS | Oceans | Ocean Circulation | Upwelling | Offshore Islands (Australia) | Macquarie Island | Regional Seas | Arafura Sea | Regional Seas | Banda Sea | Regional Seas | Celebes Sea | Regional Seas | Coral Sea | Regional Seas | Gulf of Thailand | Regional Seas | Java Sea | Regional Seas | Philippine Sea | Regional Seas | Solomon Sea | Regional Seas | South China Sea | Regional Seas | Tasman Sea | Regional Seas | Timor Sea | Sea Surface Height | SEA SURFACE TOPOGRAPHY | Satellite Altimetry | Sea surface height above geoid | Sea surface height anomaly | States, Territories (Australia) | New South Wales | States, Territories (Australia) | Northern Territory | States, Territories (Australia) | Queensland | States, Territories (Australia) | South Australia | States, Territories (Australia) | Tasmania | States, Territories (Australia) | Victoria | States, Territories (Australia) | Western Australia | oceans | orbiting satellite |

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Other Information
(OceanCurrent web site)

uri : http://oceancurrent.imos.org.au/

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

(GoGoDuck help documentation)

uri : https://help.aodn.org.au/web-services/gogoduck-aggregator/

(ncUrlList help documentation)

uri : https://help.aodn.org.au/web-services/ncurllist-service/

Identifiers
  • global : da30c0b8-4978-4a26-915e-b80c88bb4510
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