b8b1a0f1-53cf-4ae8-818d-ef3eaaeb3bba urn:uuid processor CSIRO/Oceans and Atmosphere Data Officer (AR), Hobart pointOfContact CSIRO Oceans & Atmosphere - Hobart +61 3 6232 5222 +61 3 6232 5000 GPO Box 1538 Hobart TAS 7001 Australia http://www.csiro.au/en/Research/OandA WWW:LINK-1.0-http--link Web address for organisation CSIRO Oceans & Atmosphere - Hobart +61 3 6232 5222 +61 3 6232 5000 Castray Esplanade Hobart TAS 7000 Australia http://www.csiro.au/en/Research/OandA WWW:LINK-1.0-http--link Web address for organisation CSIRO Oceans & Atmosphere - Hobart CSIRO O&A, Information & Data Centre data-requests-hf@csiro.au Data Requests CSIRO Dirita, Vito 2015-11-03T00:00:00 creation 2021-11-17T04:50:12 ISO 19115-3:2018 Marine Community Profile 2019-05-30 3.0 2019-05-30T00:00:00 Marine Community Profile Governance Committee https://mcp-profile-docs.readthedocs.io/en/stable/ WWW:LINK-1.0-http--related Documentation https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/b8b1a0f1-53cf-4ae8-818d-ef3eaaeb3bba WWW:LINK-1.0-http--metadata-URL Point of truth URL of this metadata record WGS 84 (EPSG:4326) EPSG 7.9 RV Investigator Voyage IN2017_V01 CTD Data IN2017_V01 CTD This record describes the Conductivity-Temperature-Depth (CTD) data collected from the Marine National Facility RV Investigator voyage IN2017_V01 titled: "Interactions of the Totten Glacier with the Southern Ocean through multiple glacial cycles." The voyage took place from Hobart (TAS) to Hobart between the 14th January and 5th March, 2017. Data for 33 deployments were acquired during this voyage using a Seabird SBE911 CTD, fitted with 36 twelve litre bottles on the rosette sampler. Casts 1-10, 13 – 33 were acquired using the Seabird SBE911 CTD unit 20, and casts 11 and 12 were acquired using the Seabird SBE911 CTD unit 22. CTD and sensors were changed in efforts to remediate sensor issues. CSIRO -supplied calibration factors were used to compute the pressures, and preliminary temperature and conductivity values. The data were subjected to automated QC to remove spikes and out-of-range values. Processing was completed using CapPro processing software, version 2.9. For the duration of the voyage significant spikes were observed across all recorded sensor channels. Investigation strongly suggests electrical interference was the cause of the data spikes, as mitigation measures have alleviated the issue. Care was taken in post processing to remove the spikes while maintaining true data features. The nature of the spiking was primarily extreme values persisting for a single scan, which were suitably detected and flagged by evaluating the second-difference of the data. An additional filter was also applied to the data which evaluated the median and standard deviation of the conductivity over a moving window, which was used to detect extreme changes in the sensor values characteristic of the noise induced spikes. The final conductivity calibration was based on two deployment groupings, due to sensor changes during the voyage. The final calibration for casts 1-13 from the secondary sensor had a standard deviation (S.D) of 0.0010393 PSU, within our target of ‘better than 0.002 PSU’. The final calibration for casts 14-33 from the secondary sensor had a standard deviation (S.D) of 0.0020084 PSU. The standard product of 1dbar binned averaged were produced using data from the secondary sensors. The final Oxygen calibration from the primary sensor had a S.D of 0.85991 uM. The agreement between the sensor and bottle data was good. Both Oxygen sensors calibrated closely. The Biospherical photosynthetically active radiation (PAR), Wetlabs Transmissometer, the Wetlabs ECO chlorophyll, and O&A IMU sensors were also installed on the auxiliary A/D channels of the CTD. The collected data were subsequently processed and archived within the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart. Additional information regarding this dataset may be contained in the Voyage Summary and the CTD Data Processing Report. CTD data processed by Steve Van Graas (CSIRO O&A) Data archived by Vito Dirita (CSIRO O&A). oceans 114.9 122.87 -65.68 -64.31 2017-01-14 2017-03-05 https://www.cmar.csiro.au/data/files/survey_maps/IN2017_V01.png in2017_v01 voyage track PNG Earth Science | Oceans | Ocean Optics | Photosynthetically Active Radiation Earth Science | Oceans | Ocean Pressure | Water Pressure Earth Science | Oceans | Ocean Optics | Turbidity Earth Science | Oceans | Ocean Temperature | Water Temperature Earth Science | Oceans | Salinity/Density | Salinity Earth Science | Oceans | Ocean Chemistry | Chlorophyll Earth Science | Terrestrial Hydrosphere | Water Quality/Water Chemistry | Light Transmission Earth Science | Oceans | Ocean Optics | Fluorescence Earth Science | Oceans | Ocean Chemistry | Nitrate GCMD Keywords 2014-04-29T00:00:00 geonetwork.thesaurus.external.theme.gcmd_keywords Fluorometers Nephelometers Radiation Sensors CTDs (Conductivity-Temperature-Depth Profilers) NOX monitor CSIRO Equipment 2016-10-27T00:00:00 geonetwork.thesaurus.register.equipment.urn:marlin.csiro.au:Equipment Global / Oceans | Southern Ocean Marine Planning Regions (Australia) | Australian Antarctic AODN Geographic Extent Names 2017-02-17T00:00:00 geonetwork.thesaurus.register.place.urn:aodn.org.au:geographicextents Marine National Facility CSIRO Areas Of Interest 2016-07-24T00:00:00 geonetwork.thesaurus.register.discipline.urn:marlin.csiro.au:keywords:cmarAOI Research Voyage: IN2017_V01 CSIRO Survey List 2018-01-09T00:00:00 geonetwork.thesaurus.register.survey.urn:marlin.csiro.au:surveyregister Interactions of the Totten Glacier with the Southern Ocean through multiple glacial cycles. CSIRO Project List 2018-01-09T00:00:00 geonetwork.thesaurus.register.project.urn:marlin.csiro.au:projectregister Vessel Data: CTD CSIRO Standard Data Types 2016-07-24T00:00:00 geonetwork.thesaurus.register.discipline.urn:marlin.csiro.au:keywords:standardDataType Ship: Investigator (RV) CSIRO Source List 2016-09-23T00:00:00 geonetwork.thesaurus.register.dataSource.urn:marlin.csiro.au:sourceregister Practical salinity of the water body Temperature of the water body Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it Pressure (measured variable) in the water body exerted by overlying sea water only dataParameter research vessel platform CTD instrument https://i.creativecommons.org/l/by/4.0/88x31.png WWW:LINK-1.0-http--related License Graphic Attribution 4.0 https://creativecommons.org/licenses/by/4.0/ WWW:LINK-1.0-http--related License Text Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the Marine National Facility. ATTRIBUTE STATEMENT: _________________________________ Pressure Temperature Conductivity Salinity Oxygen Nitrate Transmissometer Altimeter Photosynthetically Active Radiation (PAR) Fluorometer > Practical salinity of the water body http://vocab.aodn.org.au/def/unitsofmeasure/entity/481 Practical Salinity Unit research vessel Platform used to capture data CTD > Temperature of the water body http://vocab.nerc.ac.uk/collection/P06/current/UPAA Degrees Celsius research vessel Platform used to capture data CTD > Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it http://vocab.nerc.ac.uk/collection/P06/current/UPDB Decibars research vessel Platform used to capture data CTD > Pressure (measured variable) in the water body exerted by overlying sea water only http://vocab.nerc.ac.uk/collection/P06/current/UPDB Decibars research vessel Platform used to capture data CTD DIGITAL - netCDF https://www.marine.csiro.au/data/trawler/download.cfm?file_id=3715 WWW:LINK-1.0-http--link Download netcdf data: in2017_v01CtdAvg_nc.zip (5.1MB) https://www.marine.csiro.au/data/trawler/dataset.cfm?survey=IN2017_V01&data_type=ctd WWW:DOWNLOAD-1.0-http--csiro-oa-app Data available via Data Trawler https://www.marine.csiro.au/data/trawler/survey_list.cfm?source_id=309 WWW:LINK-1.0-http--link RV Investigator survey information including voyage plans and summaries https://www.marine.csiro.au/data/reporting/get_file.cfm?eov_pub_id=1512 WWW:LINK-1.0-http--link CTD Data Processing (PDF format) https://mnf.csiro.au/ WWW:LINK-1.0-http--link Marine National Facility https://creativecommons.org/licenses/by/4.0/ WWW:LINK-1.0-http--link License/Attribution Stored Data Location c/o O&A IDC group CTD sensor data throughout the voyage were affected by spikes, caused by noise on the CTD cable. Additional filtering was required to flag these spike and remove them from the final data product. Stations 13, 14, 15 do not have oxygen data due to changes in sensor configuration. true Original field data. Data processing and quality control by the Marine National Facility Data Acquisition and Processing Group (DAP). Data processed and archived on 11/04/2018. Data were processed using the new CapPro system. For this voyage a moving window filter was applied to remove noise spikes from the Pressure, conductivity and oxygen sensor values.