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Research Voyage: IN2016_V02

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  • This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2016_V02, which departed Hobart on the 14th-March-2016 and returned to Hobart on the 16th-April-2016. The Simrad EK60 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 1500 m. All frequencies were logged continuously for the extent of the voyage. The frequencies were] set to passive for the periods of the voyage. Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 780 files totaling 70.6 GB of raw data in this dataset. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

  • The VHTDMA was constructed at QUT for measurement of ultrafine aerosol volatility and hygroscopicity. It uses electrostatic classifiers to select particles of a particular electrical mobility diameter, conditions them (using a thermodenuder and humidifier) and re-measures the particle diameter. The VH-TDMA is made up of three purpose built electrostatic classifiers and two condensation particle counters (CPCs). One TSI 3010 CPC and one TSI 3787 CPC. The pre-classifier (used to select particles of a particular dry diameter) most commonly cycled between measuring 40, 100 and 150 nm diameter particles during IN2016_v02. For short periods other particle diameters were selected (20, 30, 60,80 nm), to examine features in the ambient size distribution. The thermodenuder was set to 250 °C for the majority of IN2016_v02, with short periods at other temperatures (150°C, 200°C). The relative humidity of the H-SMPS was set to 90% RH for most of the voyage, however it was periodically lowered for size calibration scans and to measure the deliquescence RH for ambient particles. The sample was passed through a nafion drier and inlet RH logged to ensure that dry particle diameter was selected i.e. RH < 30%, the efflouresence RH for common marine salts.

  • This record describes multibeam echosounder data collected on RV Investigator voyage IN2016_V02, which departed Hobart on the 14 March 2016 and returned to Hobart on the 16 April 2016. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information around the SOTS site and eddy fronts at 52 deg south directly south of Tasmania. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 652 files totaling 20.1 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

  • This record describes multibeam echosounder data collected on RV Investigator voyage IN2016_V02, which departed Hobart on the 14 March 2016 and returned to Hobart on the 16 April 2016. The Kongsberg EM710 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information around the shelf and slope south directly south of Tasmania. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 41 files totaling 5.4 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

  • This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2016_V02, titled: "SOTS+CAPRICORN+Eddy." The voyage took place between the March 14 and April 16, 2016 departing Hobart (TAS) and returning to Hobart. This dataset was processed and then archived within the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart.

  • This record describes sub bottom profiler data collected on RV Investigator voyage IN2016_V02, which departed Hobart on the 14 March 2016 and returned to Hobart on the 16 April 2016. The Kongsberg SBP120 (sub bottom profiler) was used to acquire data through the voyage. Data are stored in *.raw (37 files 3.2 GB) raw and *.seg (37 files 3.2 GB) segy formats at CSIRO Oceans and Atmosphere.

  • This record describes atmospheric data collected onboard the RV Investigator from 2016 onward and processed by the individual owners of the user-supplied instruments. Different data types are available for each voyage; overall, they include: - User-supplied aerosol products (CSIRO, QUT, CSU) - Merged cloud radar-lidar product (BOM) - Microwave radiometer processed (MWR) data (University of Utah) - ODM470 disdrometer products (BOM/University of Hamburg) - Processed micro rain radar (MRR-2 or MRR-PRO) data and quicklooks (AAD/BOM) - NOAA surface flux products (NOAA) - Post-processed lidar data (AAD/BOM) - BASTA cloud radar level 2 data (BOM) For more information please refer to the processing reports linked below.

  • This record describes the Conductivity-Temperature-Depth (CTD) data collected from the Marine National Facility RV Investigator voyage IN2016_V02 Titled: "SOTS: Southern Ocean Time Series Automated Moorings for Climate and Carbon Cycle Studies Southwest of Tasmania". The voyage took place between the 13th March to 16th of April, 2016 departing Hobart (TAS) and returning to Hobart (TAS). Data for 40 deployments were acquired using the Seabird SBE911 CTD 20, fitted with 24 ten litre bottles on the rosette sampler. Sea-Bird-supplied and O&A Calibration Facility calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values. The final conductivity calibration was based on a single deployment grouping. The final calibration from the secondary sensor had a standard deviation (S.D) of 0.00138 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 dissolved oxygen data calibration from the secondary sensor was used for the final calibration. The fit had a S.D. of 0.792 uM. The agreement between the CTD and bottle data was good. The Biospherical photosynthetically active radiation (PAR), C-Star transmissometer and the Wetlabs ECO chlorophyll and scattering sensors were also installed on the auxiliary A/D channels of the CTD. The lowered ADCP was also attached to the package, logging internally during each cast. 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.

  • This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator voyage in2016_v02, titled "IMOS Southern Ocean Time Series Automated Moorings for Climate and Carbon Cycle Studies Southwest of Tasmania." This voyage took place between the 14th of March, 2016 and the 16th of April, 2016, departing from Hobart (TAS) and returning to Hobart. Hydrology samples were collected from Niskin bottles sampled at various depths during a Conductivity-Temperature-Depth (CTD) deployment. Parameters analysed were salinity, dissolved oxygen, phosphate, silicate, nitrate plus nitrite and ammonium. Samples were also collected every 2 hours for nutrient analysis from the underway system which collects water from 7 m depth and is not filtered. This dataset has been archived at the CSIRO O&A Information and Data Centre (IDC) in Hobart. Additional information regarding this dataset is contained in the Voyage Report and Data Processing Report.

  • This record describes the Underway (UWY) data collected from the Marine National Facility (MNF) RV Investigator voyage IN2016_V02 Titled: "SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania". The voyage took place between the 14th March to 16th of April, 2016 departing Hobart and returning to Hobart. Standard Underway data is continuously recorded consisting of: (1) NAV: Navigation data: (dual GPS) Latitude, Longitude, Speed, Heading, course over ground, Gyros, and Doppler Log. (2) TSG: Thermosalinograph: Water Salinity, flow-rate, Temperature, Fluorescence, and pCO2. (3) MET: Atmospheric (port and starboard): Humidity, Wind speed and direction (vane and ultrasonic), Radiometer, Pyranometer, PAR, Air temperature, Air pressure, Rain, Ozone and Trace gases. Data are recorded at 5 second intervals. Near real-time data is available via the link "Visualisation tool for Underway Data." This dataset has been processed and archived within the CSIRO Oceans & Atmosphere (O&A) Information and Data Centre (IDC) in Hobart. Data is available at time intervals of 5 sec (NetCDF format), 10 sec and 5 min (ASCII format). Additional information regarding this dataset is contained in the Cruise Summary Report and/or the Data Processing Report for this voyage.