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RV Investigator Voyage IN2022 V02 Gravity Data
This record describes gravity data collected on RV Investigator voyage IN2022_V02, titled "Sedimentation at its extreme: how powerful are submarine caldera-forming eruptions (Kermadec arc)?" The voyage took place between March 15, 2022 and April 19, 2022 (AEST), departing from Hobart and returning to Hobart. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. The gravity meter was running for the duration of the voyage except for the period between 26-03-2022 05:00 and 29-03-2022 11:05 UTC when no data was acquired from any ship system as mandated and for a period of bad weather from 2022-04-12 18:01:50 until 2022-04-14 00:32:46 UTC. There are 70 files totaling 540 MB of raw data in this dataset. Wharf ties were undertaken prior to (13 March 2022) and after the voyage (19 April 2022) at the Hobart wharf using a Scintrex Autograv CG-5. Wharf tie data can be found in Hobart wharf_tie_2022_03_13.txt and Hobart wharf_tie_2022_04_19.txt, which is stored with the raw data. An Excel spreadsheet detailing the wharf tie metadata and associated waterline measurements is also stored with the raw data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.
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RV Investigator Voyage IN2023 V05 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2023_V05, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem (SEA-MES Voyage 1). The voyage took place between June 28, 2023 and July 30, 2023 (AEST), departing from Hobart and returning to Hobart. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 14 files totalling 205 MB of raw data in this dataset. A wharf tie was not undertaken due to the sensor replacements, and malfunctions. Gravity data was acquired for adhoc periods throughout the voyage although due to continued errors, malfunctions and swapping of sensor hardware it is recommended this data not be published. The manufacturer advised the systems control module be replaced as a potential solution to malfunctions. This was carried out on the 3rd July 2023. The system was observed to similarly malfunction after a short period. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.
RV Investigator Voyage IN2022 V09 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2022_V09, titled "Valuing Australia’s new Gascoyne Marine Park." The voyage took place between 0000 November 19, 2022 and 0700 December 19, 2022 (UTC), departing from Fremantle and returning to Fremantle. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 121 files totalling 1 GB of raw data in this dataset. A wharf tie was not undertaken prior to this voyage. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.
RV Investigator Voyage IN2025 V04 Gravity Data
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This record describes gravity data collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V04, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV." The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 33 files totalling 541 MB of raw data in this dataset. A wharf tie was undertaken at the end of the voyage at the Hobart Princes Wharf using a Scintrex Autograv CG-5. Wharf tie data can be found in GravityTie_in2025_v04_Hobart_20250627.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.
RV Investigator Voyage IN2022 V06 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2022_V06, titled "Integrated Marine Observing System: monitoring of East Australian Current property transports at 27 degrees South." The voyage took place between July 14 and July 30, 2022 (AEST), departing from Brisbane and returning to Brisbane. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 34 files totalling 281 MB of raw data in this dataset. We were unable to conduct a wharf tie as the ship was only temporarily in port to drop science party off. A waterline measurement alongside the Brisbane International Cruise Terminal (BICT) was conducted. No processing has been conducted on this data. Additional information regarding this dataset is contained in the GSM data acquisition and processing report.
RV Investigator Voyage IN2020 V06 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2020_V06, titled "Probing the Australian-Pacific Plate Boundary: Macquarie Ridge in 3-D." The voyage took place between October 8 and November 1, 2020 departing from Hobart (TAS) and arriving in Hobart (TAS). The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 26 files totalling 425 MB of raw data in this dataset. Wharf tie[s] were undertaken at Hobart Princes Wharf No.4 location using a Scintrex Autograv CG-5. Wharf tie data can be found in "Hobart wharf_tie_2020_11_02.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.
RV Investigator Voyage IN2017 E02 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2017_E02, Gear Trials which departed Hobart on the 31-March-2017 and returned to Hobart on the 2-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 6 files totalling 11 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.
RV Investigator Voyage IN2019 T02 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2019_T02, titled: "Deep seascapes of the Great Barrier Reef: Uncovering submarine canyons and landslides." The voyage took place between October 4 and October 14, 2019 departing from Brisbane (QLD) and arriving in Darwin (NT). The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 26 files totalling 199 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.
RV Investigator Voyage IN2019 V05 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2019_V05, titled: "Integrated Marine Observing System: monitoring of East Australian Current property transports at 27 degrees South." The voyage took place between September 9 and September 29, 2019 departing from Brisbane (QLD) and arriving in Brisbane. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 44 files totalling 370 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.
RV Investigator Voyage IN2019 V03 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2019_V03, 2nd Indian Ocean Expedition Line which departed Fremantle on the 14/05/2019 and returned to Fremantle on the 14/06/2019. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 66 files totalling 520 MB of raw data in this dataset. Wharf ties were undertaken at Fremantle (before departure) and Fremantle (upon arrival) using a Scintrex Autograv CG-5. Wharf tie data can be found in in2019_v03_Gravity_Tie_Fremantle.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.
RV Investigator Voyage IN2021 V03 Gravity Data
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This record describes gravity data collected on RV Investigator voyage IN2021_V03, titled "Integrated Marine Observing System: monitoring of East Australian Current property transports at 27 degrees South (multi-year)." The voyage took place from Hobart (TAS) to Brisbane (QLD) between May 8 and June 3, 2021. The gravity meter instrument is a MicroG Lacoste Air-Sea II. Data are stored in .ENV and .DAT data files at CSIRO. There are 62 files totalling 462 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.
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