Voyage details and related metadata, reports, events and data.
IN2025_V05
- is a Marine National Facility 
voyage
Title: Eruption, destruction, and seafloor ecosystem recovery – Tonga's 2022 eruption of the century
Period: 2025-08-09 23:00 to 2025-09-30 22:30 UTC
Duration: 51.98 days
From: Hobart To: Brisbane
Region: Tasman Sea; SW Pacific Ocean; NZ EEZ
Ship: Investigator (RV) [details]
Description: This multidisciplinary project examines interaction of volcanism with the solid earth, ocean and marine biosphere. The January 15th, 2022, eruption of Hunga Tonga-Hunga Ha’apai (HTHH) was the most powerful of the last 110 Years. Its eruption column height of 58km lacks modern precedent, as did its multiply globe-crossing shockwave. An 850 m crater (depression) formed at the summit, a volcanogenic tsunami crossed the Pacific, and the volcano seafloor was strongly modified. A benthic survey around the volcano ~90 days post-eruption revealed devastated benthic ecosystems with few or no survivors, the baseline for examining recovery for years to come. The overarching scientific objective is to understand eruption and post-eruption magmatic and volcanic processes associated with submarine volcanoes, and the subsequent impacts on the marine biological communities using the 2022 eruption of Hunga volcano as the key case study. Detailed objectives are: 1. To calculate eruption volume and intensity of this 2022 eruption (Research Aim 1). 2. To understand sediment transport mechanisms of the 2022 eruption products (Research Aim 1). 3. To test hypotheses for the formation of the summit crater of Hunga volcano (Research Aim 2). 4. To determine the recovery dynamics of disturbed biological communities following a natural disturbance (Research Aim 3).
Leader: Rebecca Carey
Projects:
Underway data from NRUD - see this voyage
Voyage extents: 43° 16.8' S to 19° 51.9' S 147° 20.3' E to 173° 30.4' W Get voyage track shapefile Get CSV
Marlin Metadata:-
Participants - on ship:-
| Name | Role | Organisation | Project |
|---|---|---|---|
| James White | Volcanology/ sedimentology | University of Tasmania | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Margot Hind | Voyage Manager | Marine National Facility | Voyage Management on RV Investigator |
| Marta Ribo | PI Volcanology/Sedimentology/CTD Ocean Science | Auckland University of Technology (AUT, NZ) | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Rebecca Carey | Chief Scientist | University of Tasmania | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Vanessa Lucieer | Alternate Chief Scientist | University of Tasmania | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
Participants - shore based:-
| Name | Role | Organisation | Project |
|---|---|---|---|
| Adam Soule | PI | University of Rhode Island (URI, USA) | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Daniel Leduc | PI | National Institute of Water and Atmospheric Research | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Lejun Zhang | PI | University of Tasmania | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Malcolm Clark | PI | National Institute of Water and Atmospheric Research | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Ryan Portner | PI | San Jose State University (SJSU, USA) | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
| Sally Watson | PI | National Institute of Water and Atmospheric Research | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century |
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_V05 Voyage Plan
- includes objectives, investigator details, proposed data collection, voyage track and equipment to be used.
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IN2025_V05 Voyage Summary
- includes preliminary results, voyage narrative, types of data collected with C77/ROSCOP codes.
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IN2025_V05 Hydrology Data Processing Report
- details of data processing steps, calibration information, instruments used and any issues with the data.
- 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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hydrology |
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Get Data from Trawler Download the Hydrology Data (NetCDF format) Link to supplementary material to the processing report (CSV format) Download the Hydrology Data (CSV format) Download the TSG Samples Event Logs (CSV Format) Download the TSG Data (CSV Format) |
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| Underway |
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Get Data from Trawler |
| ID | When (UTC) | Lat | Long | Instrument | Identifier | Action | Log | Subject / Comment |
|---|
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 24 - SN 1332,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 24 - SN 6024 | 2025-08-21 02:48 | 2025-08-21 03:38 | -20.5561 | -175.3902 | 843.9 | |||||||
| CTD Cast / Hydrology [details] | Cast 2 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-26 20:07 | 2025-08-26 21:36 | -20.5481 | -175.3732 | 520.6 | |||||||
| CTD Cast / Hydrology [details] | Cast 4 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-28 07:17 | 2025-08-28 08:06 | -20.5830 | -175.3502 | 657.7 | |||||||
| CTD Cast / Hydrology [details] | Cast 5 | Autosal Salinometer,CTD 24 - SN 1332,SCRIPPS Automated Photometric Oxygen System,Temperature CTD 24 - SN 6024 | 2025-08-29 07:39 | 2025-08-29 08:39 | -20.5155 | -175.4308 | 1025.7 | |||||||
| CTD Cast / Hydrology [details] | Cast 6 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-29 11:45 | 2025-08-29 12:35 | -20.5268 | -175.4017 | 533.6 | |||||||
| CTD Cast / Hydrology [details] | Cast 7 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-29 14:29 | 2025-08-29 15:06 | -20.5667 | -175.4246 | 427.2 | |||||||
| CTD Cast / Hydrology [details] | Cast 8 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-29 16:58 | 2025-08-29 17:37 | -20.5846 | -175.3684 | 402.2 | |||||||
| CTD Cast / Hydrology [details] | Cast 9 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-29 18:06 | 2025-08-29 18:44 | -20.5439 | -175.3616 | 488 | |||||||
| CTD Cast / Hydrology [details] | Cast 10 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-30 03:43 | 2025-08-30 04:32 | -20.5460 | -175.3969 | 488.7 | |||||||
| CTD Cast / Hydrology [details] | Cast 11 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-08-30 15:44 | 2025-08-30 18:01 | -20.6778 | -175.5327 | 1747.9 | |||||||
| CTD Cast / Hydrology [details] | Cast 12 | Autosal Salinometer,CTD 24 - SN 1332,SCRIPPS Automated Photometric Oxygen System,Temperature CTD 24 - SN 6024 | 2025-09-08 23:16 | 2025-09-09 01:02 | -20.9540 | -176.0341 | 2427.8 | |||||||
| CTD Cast / Hydrology [details] | Cast 13 | CTD 24 - SN 1332,Temperature CTD 24 - SN 6024 | 2025-09-09 11:00 | 2025-09-09 12:37 | -20.8780 | -175.8987 | 2370 | |||||||
| CTD Cast / Hydrology [details] | Cast 14 | Autosal Salinometer,CTD 24 - SN 1332,SCRIPPS Automated Photometric Oxygen System,Temperature CTD 24 - SN 6024 | 2025-09-10 00:54 | 2025-09-10 02:17 | -20.7380 | -175.6384 | 1848.7 | |||||||
| CTD Cast / Hydrology [details] | Cast 15 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-12 22:28 | 2025-09-12 23:21 | -20.5562 | -175.3873 | 844.1 | |||||||
| CTD Cast / Hydrology [details] | Cast 16 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 00:01 | 2025-09-13 00:54 | -20.5508 | -175.3788 | 842.4 | |||||||
| CTD Cast / Hydrology [details] | Cast 17 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 01:45 | 2025-09-13 02:30 | -20.5438 | -175.3915 | 672.3 | |||||||
| CTD Cast / Hydrology [details] | Cast 18 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 03:17 | 2025-09-13 03:59 | -20.5351 | -175.3962 | 242.2 | |||||||
| CTD Cast / Hydrology [details] | Cast 19 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 17:45 | 2025-09-13 18:19 | -20.5617 | -175.4098 | 56 | |||||||
| CTD Cast / Hydrology [details] | Cast 20 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 18:52 | 2025-09-13 19:41 | -20.5586 | -175.3962 | 738.9 | |||||||
| CTD Cast / Hydrology [details] | Cast 21 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 20:12 | 2025-09-13 21:01 | -20.5634 | -175.3839 | 699 | |||||||
| CTD Cast / Hydrology [details] | Cast 22 | Autosal Salinometer,CTD 24 - SN 1332,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 24 - SN 6024 | 2025-09-13 21:31 | 2025-09-13 22:09 | -20.5680 | -175.3783 | 315.9 | |||||||