d4b9576f-5b1b-466e-a718-b9e657936cb9 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-23T11:21:07 creation ISO 19115 2016 IMOS - Argo Profiles - core data d4b9576f-5b1b-466e-a718-b9e657936cb9 Argo Australia aims to undertake real time monitoring of the broad ocean state around Australia by maintaining an array of profiling (Argo) floats that measure temperature, salinity and pressure down to 2000m every 10 days in real time. The data presented here, represent all Australian Argo profiles collected since 2000, and covers the oceans in the southern hemisphere worldwide. A typical Argo float mission is to profile from 2000 m depth to the sea surface every 10 days. On deployment, the float sinks to a depth of 1000 m and drifts with the ocean currents for 9 days. Then the float sinks deeper to its profile depth (usually 2000 m) before starting to ascend through the water column measuring temperature, salinity and pressure as it rises. Once at the surface it transmits location and profile data via satellite to land-based Argo data centres. After transmission the float sinks again and repeats the cycle. Each Argo float is identified by a unique identification number called a WMO ID. WMO (World Meteorological Organisation) ID Numbers are assigned to measurement stations and observing platforms to enable researchers to keep track of, and uniquely identify their floats. The average life of the latest model APEX Argo floats are around 3.7 years or approximately 135 cycles. These statistics are for floats with the standard alkaline battery configuration from an analysis by Kobayashi et al (2009). In the Australian Argo program, the floats are deployed with a combination of lithium and alkaline battery packs which extends float lifetime. The Facility floats usually last 5 years and several floats are approaching their 9th birthday and are still returning good data. This data collection only provides access to the core data collected by Argo floats, i.e. temperature, salinity and pressure. To access biogeochemical (BGC) data recorded by selected floats, please access via this data collection - IMOS - Argo Profiles - biogeochemical data, https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/2223b7f2-4bac-4ff1-9b1e-aae9ac58deef. Countries | Australia Countries | Fiji Countries | Indonesia Countries | New Caledonia Countries | New Zealand Countries | Papua New Guinea Countries | Philippines Countries | Solomon Islands Countries | Vanuatu Global / Oceans | Atlantic Ocean Global / Oceans | Indian Ocean Global / Oceans | Pacific Ocean Global / Oceans | Southern Ocean IMOS Node | Bluewater and Climate Marine Features (Australia) | Bass Strait, TAS/VIC Marine Features (Australia) | Great Australian Bight, SA/WA Oceans | Bathymetry | Water Depth Oceans | Ocean Circulation | Ocean Currents Oceans | Ocean Pressure | Water Pressure Oceans | Ocean Temperature | Water Temperature Oceans | Salinity/density | Salinity Profiling Float | Autonomous Profiling Float Regional Seas | Arabian Sea Regional Seas | Bismarck Sea Regional Seas | Celebes Sea Regional Seas | Coral Sea Regional Seas | East China Sea Regional Seas | Philippine Sea Regional Seas | Tasman Sea Link to Argo User's Manual documentDigital HTML Argo page on IMOS website documentDigital HTML NetCDF files via THREDDS catalog documentDigital HTML View and download data though the AODN Portal documentDigital HTML imos:argo_profile_map documentDigital Argo Profiles WMS imos:argo_primary_profile_core_low_res_good_qc_data documentDigital This OGC WFS service returns filtered geographic information. The returned data is available in multiple formats including CSV. WFS OGC WFS help documentation documentDigital HTML argo_profile_map#url documentDigital The ncUrlList is a WFS service that returns a list of URLs matching a query. HTML ncUrlList help documentation documentDigital HTML Website of the Integrated Marine Observing System (IMOS) documentDigital HTML Unnamed resource documentDigital License Graphic PNG Unnamed resource documentDigital HTML