Voyage details and related metadata, reports, events and data.
IN2025_V02
- is a Marine National Facility 
voyage
Title: Multiyear: Integrated Marine Observing System (IMOS) Southern Ocean Time Series (SOTS) Strategic Partnership
Period: 2025-03-25 21:00 to 2025-04-14 02:30 UTC
Duration: 19.23 days
From: Hobart To: Hobart
Ship: Investigator (RV) [details]
Description: The primary objective is to first deploy a new set of SOTS moorings (SOFS-14 and SAZ-27) and then recover the existing SOTS moorings (SOFS-13, and SAZ-26). Each of the SOTS moorings deliver to specific aspects of the atmosphere-ocean exchanges: • the SAZ sediment trap mooring collects samples to quantify the transfer of carbon and other nutrients to the ocean interior by sinking particles and investigate their ecological controls. • the Southern Ocean Flux Station (SOFS) mooring measures meteorological and ocean properties important to air-sea exchanges, ocean stratification, waves, currents and biological productivity and ecosystem structure. Water samples are collected for more detailed nutrient and plankton investigations after recovery. Ancillary work will obtain supporting information on atmospheric and oceanographic conditions using CTD casts, and underway measurements. 1. Deploy SOFS-14 meteorology/biogeochemistry mooring 2. Deploy SAZ-27 sediment trap mooring 3. Recover SOFS-13 meteorology/biogeochemistry mooring 4. Recover SAZ-26 sediment trap mooring 5. CTD sampling (3 cast to 4550m, 2 to 600m) at the SOTS site, including collecting samples for nutrients, oxygen, dissolved inorganic carbon, alkalinity, and eDNA analyses 6. Ship meteorological observations at SOFS buoys for comparisons 7. Deployment of BGC-Argo Float (with additional UVP sensor recently refurbished after the SOLACE float was recovered). 8. Recovery of ACC-SWOT mooring at 55S site (deployed on the FOCUS IN2023_V07 voyage). 9. Deployment of BoM drifters at site of ACC-SWOT mooring recovery; CTD cast for post-calibration of recovered sensors. 10. Carry out underway air and water sampling and sensor measurements, including bio-optics and bio-acoustics
Leader: Elizabeth Shadwick
Projects:
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SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania [details] Primary
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Evolution of the Seafloor of the Australian-Antarctic Southern Ocean [details] Piggy-back
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Monitoring the recovery of a globally unique deep-sea eel aggregation in the Huon Marine Park [details] Piggy-back
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Natural Iron Fertilisation of the Southern Ocean: Linking terrestrial dust and bushfires to marine biogeochemistry [details] Piggy-back
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Profiling Echosounder [details] Piggy-back
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Quantifying Dust Fluxes in the Southern Ocean Time Series using Thorium Isotopes in Seawater [details] Piggy-back
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Southern Ocean Winter Cloud Interactions processes (SOWCLIP) [details] Piggy-back
Underway data from NRUD - see this voyage
Voyage extents: 55° 57.0' S to 42° 53.2' S 141° 17.9' E to 153° 55.2' E Get voyage track shapefile Get CSV
Marlin Metadata:-
Participants - on ship:-
| Name | Role | Organisation | Project |
|---|---|---|---|
| Alain Protat | SOWCLIP Piggyback | Bureau of Meteorology | Southern Ocean Winter Cloud Interactions processes (SOWCLIP) |
| Elizabeth Shadwick | Chief Scientist | CSIRO Manufacturing | SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania |
| Eric Schulz | Alternate Chief Scientist | Bureau of Meteorology | SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania |
| George Rowland | Piggyback | University of Tasmania | Quantifying Dust Fluxes in the Southern Ocean Time Series using Thorium Isotopes in Seawater |
| Margot Hind | Voyage Manager | Marine National Facility | Voyage Management on RV Investigator |
| Peter Jansen | Moorings Engineer | CSIRO National Collections and Marine Infrastructure | Profiling Echosounder |
| Phil Vandenbossche | GSM Support | CSIRO National Collections and Marine Infrastructure | Geophysical Survey and Mapping |
Participants - shore based:-
| Name | Role | Organisation | Project |
|---|---|---|---|
| Andrew Bowie | PI Piggyback | University of Tasmania | Natural Iron Fertilisation of the Southern Ocean: Linking terrestrial dust and bushfires to marine biogeochemistry |
| Ben Scoulding | PI Piggyback | CSIRO Manufacturing | Monitoring the recovery of a globally unique deep-sea eel aggregation in the Huon Marine Park |
This list includes those that may have only been on part of the voyage. See voyage reports on 'Reports and Maps' tab for details.
Marine National Facility Reports - plans, summaries and data processing
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IN2025_V02 Voyage Plan
- includes objectives, investigator details, proposed data collection, voyage track and equipment to be used.
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IN2025_V02 Hydrology Data Processing Report
- details of data processing steps, calibration information, instruments used and any issues with the data.
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IN2025_V02 Voyage Summary and Highlights
- includes preliminary results, voyage narrative, types of data collected with C77/ROSCOP codes.
- View Survey map
Search for publications, reports and datasets from this and other voyages
Data publishing
This is a list of online datasets hosted by CSIRO. Other processed datasets hosted by collaborating organisations may be found on the 'Metadata' or "Reports, Publications and Maps' tab.
Use the Get data link on the right to extract data using the NCMI Data Trawler.
| Data Stream | Data Summary | Get data | ||||||||||
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| Gravity Measurements |
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Get Data from Trawler |
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| Hydrology |
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Get Data from Trawler Download the Hydrology Data (NetCDF format) Download the Hydrology Data (CSV format) Download the Hydrology Event Logs (CSV format) Download the Underway Data (CSV Format) Download the TSG Data (CSV Format) Download the TSG Samples Event Logs (CSV Format) |
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| Multibeam echosounder |
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Get Data from Trawler |
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| pCO2 |
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External link - download datafile at IMOS Data fields and units document (.pdf) |
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| Singlebeam echosounder |
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Get Data from Trawler |
| ID | When (UTC) | Lat | Long | Instrument | Identifier | Action | Log | Subject / Comment |
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Deployments by start time:- Click on column header to sort. Use link on 'Deployment' to see full details. Use the CSV button at the bottom to export data (tab delimited).
Search for deployments from this voyage and others
| Deployment | Operation | Station | Cast | Gear | Project | Start and end times | Start Location | End Location | Depth range | Max Depth | Description | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTD Cast / Hydrology [details] | Cast 1 | Autosal Salinometer,CTD 22 - SN 1039,SCRIPPS Automated Photometric Oxygen System,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,Temperature CTD 22 - SN 6285 | 2025-03-26 06:57 | 2025-03-26 07:55 | -44.2238 | 147.1922 | 1000.4 | |||||||
| CTD Cast / Hydrology [details] | Cast 2 | Autosal Salinometer,CTD 22 - SN 1039,SCRIPPS Automated Photometric Oxygen System,Temperature CTD 22 - SN 6285 | 2025-03-28 23:00 | 2025-03-29 00:04 | -46.9546 | 141.4421 | 303.6 | |||||||
| CTD Cast / Hydrology [details] | Cast 3 | Autosal Salinometer,CTD 22 - SN 1039,SCRIPPS Automated Photometric Oxygen System,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,Temperature CTD 22 - SN 6285 | 2025-03-29 03:02 | 2025-03-29 06:47 | -46.8926 | 141.6446 | 4000 | |||||||
| CTD Cast / Hydrology [details] | Cast 4 | Autosal Salinometer,CTD 22 - SN 1039,SCRIPPS Automated Photometric Oxygen System,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,Temperature CTD 22 - SN 6285 | 2025-03-31 20:34 | 2025-04-01 00:13 | -46.8416 | 142.5615 | 4575.1 | |||||||
| CTD Cast / Hydrology [details] | Cast 5 | Autosal Salinometer,CTD 22 - SN 1039,SCRIPPS Automated Photometric Oxygen System,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,SEAL AutoAnalyzer 3 HR,Temperature CTD 22 - SN 6285 | 2025-04-07 08:58 | 2025-04-07 12:01 | -55.8752 | 152.7092 | 3817.7 | |||||||
| CTD Cast / Hydrology [details] | Cast 6 | Autosal Salinometer,CTD 22 - SN 1039,SCRIPPS Automated Photometric Oxygen System,Temperature CTD 22 - SN 6285 | 2025-04-07 22:23 | 2025-04-07 23:30 | -55.5325 | 150.6468 | 303.7 | |||||||