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Overview of Data holdings - CSIRO O&A Data Centre

Overview of Data holdings

This page describes the current data holdings by data type that the Data Trawler can deliver.

ADCP Data - [view map]

Acoustic Doppler Current Profiler (ADCP) data has been collected since 1987 from over 210 voyages at 350,000 positions yielding 10 million discrete velocity measurements. Over that period, the original processed data format has varied considerably from text files to various versions of netCDF. The Data Trawler provides a method to extract the ADCP data into one format.


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ADCP ensembles shown as dots...

CTD profile - [view map]

The CSIRO Oceans and Atmosphere (O&A) previously CSIRO Marine and Atmospheric Research (CMAR) CTD (Conductivity Temperature Depth) dataset includes data collected since 1982 during the voyages of Australia's Marine National Facility, and of various CSIRO marine research vessels. CTD data typically consists of vertical profiles binned at 2-metre intervals. Data usually includes conductivity, temperature, depth and salinity (derived), and may also include any or all of oxygen, fluorescence, optical back scatter (OBS), pH and transmittance. Individual metadata records have been created for each research voyage. The data is held in the O&A Information & Data Centre Data Warehouse, which currently holds over 14,321 CTD station records from more than 285 voyages.

see MarLIN record: - O&A CTD Data Overview (1982 - present) [link]


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CTD casts shown as yellow dots...

Catch Details - [view map]

The CMAR Catch Operations data set currently includes information on samples collected between 1965 and 2005 during voyages of various CSIRO research vessels. The data includes information about the time, location depth and catch method (trawl net etc) for each operation, metrics of catch (weight composition etc) and species and specimen details. Individual metadata records have been created for each research voyage. The data are held in the CMAR Data Warehouse, which currently holds over 13,000 catch operation records from more than 200 voyages.

see MarLIN record: - CMAR Catch Operations Data overview (1965 to current) [link]


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Catch locations shown as dots...

Current Meter - [view map]

Data collected since 1983 using moored current meters deployed at various locations around Australia and in the southern Ocean has been loaded into the the CMAR Data Warehouse. Individual metadata records contain detailed information about each experiment. Most of these data were collected by the historical CSIRO divisions of Fisheries, Oceanography, Marine Research and now Marine and Atmospheric Research.

see MarLIN record: - Current Meter Mooring Data overview (1983 - present) [link]


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Mooring locations shown as mooring symbols

Gravity Measurements - [view map]

A Micro-G LaCoste Air-Sea System II marine gravity meter has been installed on the RV Investigator. It consists of a highly damped, spring-type gravity sensor that is mounted on a gyro stabilized platform with associated electronics for obtaining gravity readings. Data is sampled every second and will be routinely run on all voyages.


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gravity data lines in darkred

Hydrology - [view map]

The CMAR Hydrology data set includes data collected since 1942 during the voyages of Australia's Marine National Facility, and of various CSIRO marine research vessels and coastal stations. Hydrology data usually consists of salinity and nutrient values obtained by analysing water samples taken at several depths at each station. The data may include temperature for some depths, nutrients may include any or all of ammonia, nitrite, phosphate, nitrate, silicate, oxygen. Individual metadata records have been created for each research voyage. The data is held in the CMAR Data Warehouse, which currently holds over 45,000 Hydrolgy station records from more than 500 voyages.

see MarLIN record: - CMAR Hydrology Data Overview (1942 - present) [link]


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Hydrology casts shown as dots...

Multibeam echosounder - [view map]

Multibeam echosounder data is not stored in the warehouse, only the references to the individual survey lines. These files are typically of one hour duration and the extent of the multibeam echosounder mapping is calculated using the start/end point and the average depth. If the depth is not known, it is assumed to be 1000 m. The current multibeam system (EM122) on RV Investigator can reach full ocean depth. It's complementary system (EM710) produces spatially more precise data and is limited to about 1,500 m. The multibeam echosounder (EM300) on the RV Southern Surveyor was limited to 4,000 m yielding a potential maximum swath width on the seabed of 16 km.


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Multibeam echsounder coverage

Radon measurements - [view map]

Sea Surface Temperature - [view map]

SST data from Investigator

This record describes the ISAR/SST Sea Surface Temperature data collected on the RV Investigator Voyages from 2014 onwards. The infrared SST autonomous radiometer (ISAR) is a self-calibrating instrument capable of measuring in situ sea surface skin temperature to an accuracy of 0.1 K. The SST Radiometer is mounted on the port bridge wing, approximately 19.593m above the summer load line. The RV Investigator ISAR skin SST data are also supplied both in real-time (http://thredds.aodn.org.au/thredds/catalog/IMOS/SOOP/SOOP-ASF/VLMJ_Investigator/meteorological_sst_observations/catalog.html) and in delayed mode after reprocessing (http://thredds.aodn.org.au/thredds/catalog/IMOS/SOOP/SOOP-ASF/VLMJ_Investigator/meteorological_sst_observations/2016/ISAR-QC/catalog.html and http://thredds.aodn.org.au/thredds/catalog/IMOS/SOOP/SOOP-ASF/VLMJ_Investigator/meteorological_sst_observations/2017/ISAR-QC/catalog.html). These reprocessed files will be particularly valuable for satellite SST validation (as the ISAR measures SST at the same depth as measured by satellites) and are currently (2017) being used by EUMETSAT for Sentinel-3 SST validation and to JMA and Oceans University China for Himawari-8 SST validation. Further information can be found in the data and documentation links below.

see MarLIN record: - RV Investigator ISAR/SST Sea Surface Temperature Data - Selected Voyages (2014 onwards) [link]


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Sea surface temperature measurements

Sediment sampling - [view map]

Sampling of sediments has occurred on many voyages using sleds, dredges, grabs and corers. Records of sampling have been taken from a variety of sources and merged into one product. Two principal sources are the CSIRO Exploration and Mining voyages in 1990's and Geoscience Australia MARine Sediments (MARS) database downloaded in June 2013. MARS was queried for all RV Franklin and RV Southern Surveyor records. The rest of the sites have been extracted from voyage summary reports and where possible the MARS records have had additional details added including water depth and on-board commentary on the samples collected. Many of the sampling events do not have dates although the position is recorded quite accurately. Metadata records are missing for some voyages and will be added. In the interim, refer to the voyage reports for details including stations that failed to acquire samples.


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Sediment sampling sites (MNF voyages - blue, CMAR voyages - yellow)

Singlebeam echosounder - [view map]

Singlebeam echosounder data has been acquired from EA500, EK500 and EK60 systems. The RV Southern Surveyor carried a dual band EK60 (12 and 38-120 kHz) whilst the RV Investigator has an enhanced EK60 operating at 7 bands (12, 18, 38, 70, 120, 200 and 300 kHz).


Species sightings - [view map]

Wildlife observations of seabirds, seals and cetaceans from RV Investigator typically using the dedicated observation room above the bridge.


Sub-bottom profiler - [view map]

TOPAS parametric sub-bottom profiler has been run on numerous RV Southern Surveyor voyages. This dataset includes data acquired from GeoScience Australia holdings and merged with existing data centre holdings. The SBP120 sub-bottom profiler is the new instrument installed on the RV Investigator. Data is being acquired on a regular and routine basis.


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Sub-bottom profile lines in purple

Towed CTD - [view map]

The SeaSoar data collected on RV Franklin voyages fr198804; fr198913; fr199010; fr199103; fr199109; fr199209; fr199301; fr199310; fr199409; fr199508; fr199509; fr199607; fr199704; fr199707; fr199802; fr199810; fr199902; fr200102 were backed up to LTO tape in 2005. See the "CD" link for more details.

see MarLIN record: - Franklin SeaSoar Data Overview (1988 - 2002) [link]


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Each CTD tow shown as one of ten distinct random colours

Underway - [view map]

The CMAR Optimized Voyage Tracks displayed in the WMS associated with this record are derived from underway GPS data collected since 1986 by Australia's Marine National Facility during research voyages. For most of these voyages, five minute underway digital data is available. The underway data set typically includes GPS location, Sea Surface Salinity and temperature, and Meteorology Station data. Later voyages also recorded digital echo sounder data. Individual metadata records have been created for each research voyage. The data is held in the CMAR Data Warehouse, which currently holds underway GPS data for more than 200 voyages.

see MarLIN record: - CMAR Marine National Facility Voyage Tracks overview (1986 - present) [link]


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Each voyage track shown as one of ten distinct colours

XBT Profile - [view map]

XBT casts from RV Franklin from 1985 to 1997 and from RV Southern Surveyor from 2007 to present. There are some gaps in data that will be addresed.

Unknown marlin identifier of 033a1ddd-b206-09d0-e053-08114f8c3b40 d5a640e7-c695-23e1-e043-08114f8c7b58

see MarLIN record: - Unknown marlin identifier of 033a1ddd-b206-09d0-e053-08114f8c3b40 d5a640e7-c695-23e1-e043-08114f8c7b58


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XBT casts shown as yellow dots...
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