IN2024_V01: Southern Ocean Atmospheric DMS and MeSH Measurements

RV Investigator voyage IN2024_V01 collected measurements of dimethyl sulfide (DMS) and methanethiol (MeSH) using a Proton Transfer Reaction Time-of-Flight Mass Spectrometer (PTR-ToF-MS). The data were acquired during the Multidisciplinary Investigations of the Southern Ocean (MISO) expedition from 2 January to 5 March 2024, sailing from Hobart to Fremantle. These observations are hosted by the Australian Ocean Data Network and were last updated in April 2026.

Use Cases

• Modeling marine sulfur cycling based on atmospheric dimethyl sulfide (DMS) concentrations.
• Studying climate interactions based on trace gas observations in the Southern Ocean atmosphere.
• Investigating ocean-atmosphere processes based on concurrent measurements of DMS and methanethiol (MeSH).
• Analyzing temporal and spatial variability of trace gases during a specific research voyage.

Strengths

• Data were collected during a dedicated multidisciplinary research voyage (IN2024_V01) with a clear scientific mission.
• Measurements were made using a Proton Transfer Reaction Time-of-Flight Mass Spectrometer (PTR-ToF-MS), a specific high-sensitivity instrument.
• The dataset provides key observations for a specific time range (2 January to 5 March 2024) and geographic transect (Hobart to Fremantle).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical modeling.
• Available file formats (PNG, HTML) suggest the primary data may be packaged in reports or visualizations rather than raw tabular files.

Provenance

Source

Australian Ocean Data Network

Collection Method

Acquired using a Proton Transfer Reaction Time-of-Flight Mass Spectrometer (PTR-ToF-MS) onboard the RV Investigator.

Time Range

2 January to 5 March 2024 (AEST)

Freshness

Last updated 2026-04-28 13:21:03.615503; freshness should be verified.

Geography

Southern Ocean, voyage from Hobart to Fremantle.