This record describes the trace metal dataset from the MNF RV Franklin survey FR 07/1997, titled "TROPICS97 Tropical River-Ocean Processes in Coastal Settings." The survey departed Madang (Papua New Guinea) on August 4, 1997 and arrived in Townsville (QLD) on August 22, 1997. Samples were collected from the Sepik river and from each end of the N-S transects (~ 150 km long) off the coast of PNG. These stations were upstream of the plume (145 E), off the Sepik and downstream, or in, the plume (144 E and 143 E). Samples were also collected along the equator 143 E, 147 E, 149 E and 152 E. Samples were generally collected from surface to ~ 300m except equator station at 152 E where samples were collected to 2000m. Parameters: Concentrations of unfiltered (total dissolvable) cadmium, copper, iron, manganese and nickel. Four inshore stations and a Sepik river station (18 samples) included filtered (total dissolved) cadmium, copper, iron, manganese and nickel. More information is available from the Data Documentation link below.

This record describes the trace metal dataset from the MNF RV Franklin survey FR 01/2000, titled "TROPICS 2000: A continuing investigation on the supply of nutrients, organics and trace metals to the equatorial region from the Sepik River and their influence on coastal and oceanic primary production." The survey departed Cairns (QLD) on January 14, 2000 and arrived in Rabaul (Papua New Guinea) on February 3, 2000. Samples were collected from the Vitiaz Strait, along a transect from the Sepik River to Manus Island, in the New Guinea Coastal Undercurrent (NGCU) at 144 E and 143 E, and along the equator at 143E and 150E. 84 TM samples were collected, including 6 filtered samples and 3 quality control blanks and 75 salinities. Parameters: Concentrations of unfiltered (total dissolvable) cadmium, copper, iron, manganese and nickel. One station with 6 samples included filtered (total dissolved) cadmium, copper, iron, manganese and nickel. More information is available from the Data Documentation link below.

This record describes the Iron(II) data collected from the Marine National Facility RV Investigator voyage IN2016_V01 titled: "HEOBI: Heard Earth-Ocean-Biosphere Interactions." The voyage took place from Fremantle (WA) to Hobart (TAS) between January 7 and February 27, 2016. This dataset was produced as part of the project "Heard Earth-Ocean-Biosphere Interactions (HEOBI), GEOTRACES process study GIpr05." Samples were analysed using Flow Injection Analysis – Chemiluminescence (FIA-CL) method on-board during the voyage. Voyage, date, time, latitude, longitude, sampling site (TMR), bottle numbers and depths are included. The collected data were subsequently 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 the End of Voyage (EOV) archive from the Marine National Facility (MNF) RV Investigator research voyage in2018_v04, titled "Constraining external iron inputs and cycling in the southern extension of the East Australian Current." The voyage took place from Hobart (TAS) to Hobart between September 11 and October 8, 2018. Supplementary project: "Spatial and temporal variability in the distribution and abundance of seabirds." For further information refer to the Voyage documentation links below. Instruments used and data collected include: Regular measurements: Acoustic Doppler Current Profiler (ADCP; 75, 150 KHz ), Lowered ADCP (LADCP), Disdrometer, Fisheries echosounder (EK60), Multibeam Echosounder (EM710, EM122), Sub-bottom Profiler (SBP120), Gravimeter, GPS Positioning System, Doppler Velocity Log, Met station (temp, humidity, pressure, wind, rain, PIR, PSP, PAR), Nephelometer, pCO2, Starboard and Portside Radiometers, Radon and Ozone sensors, Weather Radar, Greenhouse Gas Analysers (Picarro), Air Pressure, Wind Speed and Direction sensors, Photosynthetically Active Radiation (PAR) sensor, Precision Infrared Radiometer (PIR), Precision Spectral Pyranometer (PSP), Seawater (TSG, fluorometer, optode), Thermosalinographs (TSG), CTD, Hydrochemistry. Voyage-specific measurements: Cloud Condensation Nuclei counter (CCN), Condensation Particle Counters (CPC), Continuous Plankton Recorder (CPR), EZnet, Multiangle Absorption Photometer (MAAP), Multicorer, Kasten Corer, Trace Metals, Triaxus, Fluorescence Induction and Relaxation System (FIRe), Submersible Ultraviolet Nitrate Analyser (SUNA), Nutrient (NOx) autoanalyser, Ultra Short BaseLine Underwater Positioning System (USBL), Video, Bird Observations. The archive for the IN2018_V04 EOV raw data is curated by the CSIRO Oceans and Atmosphere (O&A) Information and Data Centre (IDC) in Hobart, with a permanent archive at the CSIRO Data Access Portal (DAP, https://data.csiro.au/dap/), providing access to participants and processors of the data collected in the voyage. All voyage documentation is available electronically to MNF support via the local network. Access to voyage documentation for non-CSIRO participants can be made via DataLibrariansOAMNF@csiro.au.