Data

RV Investigator Voyage IN2017_V02 CTD Data

Australian Ocean Data Network
CSIRO (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) Dirita, Vito (Originator of, Processor of)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/1d8a96c6-3650-4115-9801-11e89ac45819&rft.title=RV Investigator Voyage IN2017_V02 CTD Data&rft.identifier=1d8a96c6-3650-4115-9801-11e89ac45819&rft.publisher=Australian Ocean Data Network&rft.description=This record describes the Conductivity-Temperature-Depth (CTD) data collected from the Marine National Facility RV Investigator voyage IN2017_V02 titled: SOTS: Southern Ocean Time Series Automated Moorings for Climate and Carbon Cycle Studies Southwest of Tasmania. The voyage took place between 16 to 27 March 2017 departing from Hobart (TAS) and returning to Hobart (TAS). Data for 11 deployments were acquired using the Seabird SBE911 CTD unit 23, fitted with 36 twelve litre bottles on the rosette sampler. Sea-Bird-supplied calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO -supplied calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values.Processing was completed using CapPro processing software, version 2.4.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.The final conductivity calibration was based on a single deployment grouping. The final calibration from the primary sensor had a standard deviation (S.D) of 0. 001173 PSU, well within our target of ‘better than 0.002 PSU’. The standard product of 1dbar binned averaged were produced using data from the primary sensors.The final Oxygen calibration from the secondary sensor had a S.D of 0.5443 uM. The agreement between the sensor and bottle data was very 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.Progress Code: completedMaintenance and Update Frequency: asNeededStatement: Original field data. Data processing and quality control by the Marine National Facility Data Acquisition and Processing Group (DAP). Data processed and archived on 13/02/2018. Data were processed using the new CapPro system. Raw CTD data on all channels exhibit greater than typical spiking in values due to noise on the cable. This has been flagged and filtered in the calibrated and averaged data product&rft.creator=Anonymous&rft.date=2015&rft.coverage=westlimit=141.9; southlimit=-46.7; eastlimit=147.4; northlimit=-43.4; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=141.9; southlimit=-46.7; eastlimit=147.4; northlimit=-43.4; projection=WGS 84 (EPSG:4326)&rft_rights=Attribution 4.0 https://creativecommons.org/licenses/by/4.0/&rft_rights=&rft_rights=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.&rft_subject=oceans&rft_subject=Earth Science | Oceans | Ocean Optics | Turbidity&rft_subject=Earth Science | Terrestrial Hydrosphere | Water Quality/Water Chemistry | Light Transmission&rft_subject=Earth Science | Oceans | Ocean Optics | Photosynthetically Active Radiation&rft_subject=Earth Science | Oceans | Ocean Temperature | Water Temperature&rft_subject=Earth Science | Oceans | Ocean Pressure | Water Pressure&rft_subject=Earth Science | Oceans | Salinity/Density | Salinity&rft_subject=Earth Science | Oceans | Ocean Optics | Fluorescence&rft_subject=Earth Science | Oceans | Ocean Chemistry | Chlorophyll&rft_subject=Earth Science | Oceans | Ocean Chemistry | Nitrate&rft_subject=CTDs (Conductivity-Temperature-Depth Profilers)&rft_subject=Fluorometers&rft_subject=Radiation Sensors&rft_subject=Nephelometers&rft_subject=NOX monitor&rft_subject=Coastal Waters (Australia) | Queensland Coast, QLD&rft_subject=Coastal Cities / Towns (Australia) | Brisbane, QLD&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2017_V02&rft_subject=SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania&rft_subject=Vessel Data: CTD&rft_subject=Ship: Investigator (RV)&rft_subject=Practical salinity of the water body&rft_subject=Temperature of the water body&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water only&rft_subject=CTD&rft_subject=research vessel&rft.type=dataset&rft.language=English Access the data
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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.

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This record describes the Conductivity-Temperature-Depth (CTD) data collected from the Marine National Facility RV Investigator voyage IN2017_V02 titled: "SOTS: Southern Ocean Time Series Automated Moorings for Climate and Carbon Cycle Studies Southwest of Tasmania". The voyage took place between 16 to 27 March 2017 departing from Hobart (TAS) and returning to Hobart (TAS).

Data for 11 deployments were acquired using the Seabird SBE911 CTD unit 23, fitted with 36 twelve litre bottles on the rosette sampler. Sea-Bird-supplied calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO -supplied calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values.

Processing was completed using CapPro processing software, version 2.4.

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.

The final conductivity calibration was based on a single deployment grouping. The final calibration from the primary sensor had a standard deviation (S.D) of 0. 001173 PSU, well within our target of ‘better than 0.002 PSU’. The standard product of 1dbar binned averaged were produced using data from the primary sensors.

The final Oxygen calibration from the secondary sensor had a S.D of 0.5443 uM. The agreement between the sensor and bottle data was very 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.

Lineage

Progress Code: completed
Maintenance and Update Frequency: asNeeded
Statement: Original field data. Data processing and quality control by the Marine National Facility Data Acquisition and Processing Group (DAP). Data processed and archived on 13/02/2018. Data were processed using the new CapPro system. Raw CTD data on all channels exhibit greater than typical spiking in values due to noise on the cable. This has been flagged and filtered in the calibrated and averaged data product

Notes

Credit
CTD data processed by Steve Van Graas (CSIRO O&A) Data archived by Vito Dirita (CSIRO O&A).

Data time period: 2017-03-16 to 2015-03-27

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147.4,-43.4 147.4,-46.7 141.9,-46.7 141.9,-43.4 147.4,-43.4

144.65,-45.05

text: westlimit=141.9; southlimit=-46.7; eastlimit=147.4; northlimit=-43.4; projection=WGS 84 (EPSG:4326)

Subjects
CTD | CTDs (Conductivity-Temperature-Depth Profilers) | Coastal Cities / Towns (Australia) | Brisbane, QLD | Coastal Waters (Australia) | Queensland Coast, QLD | Earth Science | Oceans | Ocean Chemistry | Chlorophyll | Earth Science | Oceans | Ocean Chemistry | Nitrate | Earth Science | Oceans | Ocean Optics | Fluorescence | Earth Science | Oceans | Ocean Optics | Photosynthetically Active Radiation | Earth Science | Oceans | Ocean Optics | Turbidity | Earth Science | Oceans | Ocean Pressure | Water Pressure | Earth Science | Oceans | Ocean Temperature | Water Temperature | Earth Science | Oceans | Salinity/Density | Salinity | Earth Science | Terrestrial Hydrosphere | Water Quality/Water Chemistry | Light Transmission | Fluorometers | Marine National Facility | NOX monitor | Nephelometers | Practical salinity 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 | Radiation Sensors | Research Voyage: IN2017_V02 | SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania | Ship: Investigator (RV) | Temperature of the water body | Vessel Data: CTD | oceans | research vessel |

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Other Information
(Download netcdf data in2017_v02CtdAvg_nc.zip (3.7MB))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=3485

(Voyage Plan (pdf))

url : https://mnf.csiro.au/~/media/Files/Voyage-plans-and-summaries/Investigator/Voyage%20Plans%20summaries/2017/IN2017_V02%20Voyage%20plan%2020170316.ashx

(download matlab .mat data in2017_v02CtdAvg_mat.zip (3.8MB))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=3486

(Data available via Data Trawler)

url : https://www.marine.csiro.au/data/trawler/dataset.cfm?survey=IN2017_V02&data_type=ctd

(RV Investigator survey information including voyage plans and summaries)

url : https://www.marine.csiro.au/data/trawler/survey_list.cfm?source_id=309

(Download Processing report in2017_v02_CTD_Processing_Report.pdf)

url : https://www.marine.csiro.au/data/reporting/get_file.cfm?eov_pub_id=1514

(Marine National Facility)

url : https://mnf.csiro.au/

(License/Attribution)

url : https://creativecommons.org/licenses/by/4.0/

Identifiers
  • global : 1d8a96c6-3650-4115-9801-11e89ac45819