This record describes gravity data collected on RV Investigator voyage IN2014_E02. The sea trial included two legs, both from Hobart to Hobart, with Leg 1 between 28th October to the 1st November and Leg 2, 1st November to the 6th of November. Gravity data is collected onboard using a MicroG Lacoste Air-Sea system II. Data are stored in .ENV and .DAT files at CSIRO Oceans and Atmosphere. There are 19 files totaling 143 MB of raw data in this dataset. At wharf calibration data file is in CG5 subdirectory. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2014_E02. The sea trial voyage included two legs, both from Hobart to Hobart with Leg 1 between 28th of October to the 1st November and Leg 2 from the 1st November to the 6th November. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 159 files totalling 6.39 GB of raw data in this dataset. 69 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 available on request.

This record describes sub-bottom data collected on RV Investigator voyage IN2014_E02. The sea trial included two legs, both from Hobart to Hobart with Leg 1 between 28th of October to the 1st November and Leg 2 from the 1st November to the 6th November. The Kongsberg SBP120 (Sub bottom profiler) was used to acquire data throughout the voyage. Data are stored in *.raw raw and *.seg segy formats at CSIRO Oceans and Atmosphere. There are 88 files totalling 6.72 GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes echosounder data collected on Southern Surveyor voyage IN2014_E02. The sea trial voyage included two legs, both from Hobart to Hobart with Leg 1 between 28th of October to the 1st November and Leg 2 from the 1st November to the 6th November. The Simrad EK60 split beam echosounders 18, 38, 70, 120, 200 and 333 KHz acquired high resolution water column and bathymetry data throughout the voyage. Data are stored in *.raw *.bot and *.idx format at CSIRO Oceans and Atmosphere. There are 57 files totalling 10.76 GB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes multibeam echosounder data collected on RV Investigator voyage IN2014_E02. The sea trial included two legs, both from Hobart to Hobart with Leg 1 between 28th of October to the 1st November and Leg 2 from the 1st November to the 6th November. The Simrad EM710 multibeam echosounder acquired high resolution seafloor bathymetry and backscatter information. Ping rate varied according to depth. Data are stored in Simrad *.all raw format at CSIRO Oceans and Atmosphere. There are 168 files totalling 20.2 GB of raw data in this dataset. Water column data is available for parts of this survey. A total of 49 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 available on request.

This record describes XBT data collected on RV Investigator voyage IN2014_E02.The sea trial included two legs, both from Hobart to Hobart with Leg 1 between 28th of October to the 1st November and Leg 2 from the 1st November to the 6th November. TuroXBT hardware and Devil software were used to acquire the data. Data are stored in netCDF files at CSIRO Oceans and Atmosphere. There were 6 XBT drops. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This dataset contains the Underway (UWY) data collected from the Marine National Facility RV Investigator Event voyage IN2014_E02. This voyage will perform sea trials for the RV Investigator with two legs, both from Hobart to Hobart with Leg 1 between 28th of October to the 1st November and Leg 2 from the 1st November to the 6th November. The UWY data from this trial voyage was assessed and will not be processed as the quality is too variable to make it feasible/useful. The unprocessed UWY data is part of the EOV archive and will not be released. Additional information regarding this dataset is contained in the cruise report for this voyage.

This record describes some Underway (UWY) data collected from the Marine National Facility (MNF) RV Investigator, which are not part of research datasets and have not been processed or quality-controlled. This includes data from most "Gear trials" voyages (identified by the survey name suffix "_eNN"). Underway data from these voyages are usually not processed unless requested. While RV Investigator is at sea, standard Underway data are continuously recorded, consisting of: (1) Navigation data (NAV): Latitude, Longitude, Speed, Heading, Course Over Ground, Gyros, and Doppler Log (dual GPS instrument). (2) Thermosalinograph (TSG): Water Salinity, Flow-Rate, Temperature, Fluorescence, pCO2 and Optode/Oxygen. (3) Atmospheric (MET): Humidity, Wind Speed and Direction (vane and ultrasonic), Radiometer/Sea Surface Temperature, Pyranometer/Solar Radiation, Photosynthetically Active Radiation (PAR), Air Temperature, Air Pressure, Rain, Ozone and Trace Gases (port and starboard instruments). During the voyage, near real-time data are available from the MNF tool NRUD (Near Real-Time Underway Data) via the link "Visualisation tool for Underway Data" below. To request access after the voyage please contact the data custodian. The Underway data collected during research voyages (identified by the survey name suffix "_vNN") are processed and quality-controlled by the Marine National Facility (MNF). The processed datasets from these voyages are made available at time intervals of 5 sec (NetCDF format), 5 sec, 10 sec, 1 min and 5 min (ASCII/CSV format) through a voyage-specific metadata record. Additional information regarding processed datasets is available in the Voyage Summary and/or the Data Processing Reports linked to the relevant metadata records.