This record describes gravity data collected on RV Investigator voyage IN2017_C01, 'GAB deep water geological and benthic ecology program' which departed Hobart on the 11 April 2017 and returned to Hobart on the 28 April 2017. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 30 files totalling 229 MB 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.

This record describes gravity data collected on RV Investigator voyage IN2017_C02, 'Hogan Group Hydrographic Survey – Bass Strait' which departed Hobart on the 4th May 2017 and came alongside Bell Bay following completion of the survey on the 14th May 2017. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 22 files totalling 161 MB 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.

This record describes gravity data collected on RV Investigator research charter IN2015_C01, 'GAB deep water geological and benthic ecology program,' which departed Hobart on the 25 October and returned to Port Lincoln on the 28 November. A short sea trial voyage (October 22 - 25, Hobart - Hobart) was undertaken prior to the charter. Data for those days is also included in this data set. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 79 files totalling 596 MB of raw data in this dataset. Wharf ties were undertaken at in Hobart and Port Lincoln using a Scintrex Autograv CG-5. Wharf tie data can be found in Hobart Wharf Tie Oct 2015.txt and Port Lincoln Wharf Tie 28 Nov 2015.txt, which are stored with the raw data. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes gravity data collected on RV Investigator voyage IN2017_V03, 'Sampling the abyss: latitudinal biodiversity patterns along the base of Australia’s eastern continental margin' which departed Bell Bay on the 15 May 2017 and returned to Brisbane on the 16 June 2017. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 30 files of each type totalling 428 MB of raw data in this dataset. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes gravity data collected on RV Investigator voyage IN2019_V07, 'RAN Hydrographic and Maritime Heritage Surveys' which departed Hobart on the 11 April 2019 and returned to Hobart on the 23 April 2019. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 13 files totalling 197 MB of raw data in this dataset. Wharf tie[s] were not undertaken. but static readings were obtained at the Start and End of the voyage alongside in Hobart. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes some gravity data collected on RV Investigator voyage IN2015_V02, using MicroG Lacoste Air-Sea system II; the ship departed Sydney on 15 May and arrived in Brisbane on 26 May 2015. Due to instrument problems gravity data was only collected on 24 and 25 May. Data are stored in .ENV and .DAT files at CSIRO Oceans and Atmosphere. There are 4 files. At wharf calibration data is in wharf_tie_dec-2014 subdirectory.

This record describes gravity data collected on RV Investigator voyage IN2024_E01, 'Trials and Calibrations' which departed Hobart on the 28th October and returned to Hobart on the 6th November 2024. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 12 files totalling 132 MB of raw data in this dataset. Wharf ties were undertaken at PW4 in Hobart using a Scintrex Autograv CG-5. Wharf tie data can be found in "GravityTie_in2024e01_Hobart_SOV_20241023.txt" and "GravityTie_in2024e01_Hobart_EOV_20241107.txt", which is stored with the raw data. NOTE: The ASII (S-166) was recommissioned on this voyage after a lengthy absence for manufacturer repairs in 2023/24. As such these data should not be used for scientific purposes and is considered as calibration data only. NOT FOR PUBLICATION No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes gravity data collected on RV Investigator voyage IN2018_T01, titled: "Physical and biogeochemical gradients in the East Australian Current." The voyage took place from Hobart (TAS) to Brisbane (QLD) between April 5 and April 14, 2018. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 20 files totalling 165 MB 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.

This record describes gravity data collected on RV Investigator voyage IN2016_V04, 'Influence of temperature and nutrient supply on the biogeochemical function and diversity of ocean microbes' which departed Sydney on the 31 Aug 2016 and returned to Brisbane on the 22 Sept 2016. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 53 files totalling 396 MB of raw data in this dataset. Wharf ties were undertaken at Hobart using a Scintrex Autograv CG-5. Wharf tie data can be found in Hobart wharf_tie_2016_07_20.txt, which is stored with the raw data. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.

This record describes gravity data collected on RV Investigator voyage IN2015_V03, which departed Brisbane on the 3rd June 2015 and arrived Sydney on 18th June 2015. Gravity data collected on Investigator voyage IN2015_V03 using MicroG Lacoste Air-Sea system II. Data are stored in .ENV and .DAT files at CSIRO Oceans and Atmosphere. There are 32 files totaling 244 MB of raw data in this dataset. Note there are three erroneous GPS derived positions in the data at 2015-06-13 13:17, 2015-06-15 05:23 and 2015-06-10 09:47 UTC. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.