This record describes data from the Spectronus - Trace gas analyser based on Fourier Transform Infrared spectroscopy (FTIR) collected on the Marine National Facility RV Investigator Event voyage IN2015_E01. This was a trial voyage for the RV Investigator departing Hobart on the 29th January and returning to Hobart on the 18th of February, 2015. The Spectronus - Trace gas analyser based on Fourier Transform Infrared spectroscopy (FTIR) is manufactured by Ecotech and the University of Wollongong. It makes continuous online measurements of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), carbon monoxide (CO) and isotopologue del13C(CO2).