Southern Ocean Atmospheric DMS and Methanethiol Measurements from 2024 Voyages

Aggregating Proton Transfer Reaction Mass Spectrometer measurements of dimethyl sulfide (DMS) and methanethiol (MeSH) trace gases. The data were collected during two RV Investigator voyages in the Southern Ocean from January to March 2024, supporting studies of biogeochemical cycling and ocean-atmosphere processes.

Use Cases

• Analyze dimethyl sulfide (DMS) concentration time series to study its role in Southern Ocean biogeochemical cycling.
• Correlate methanethiol (MeSH) measurements with other atmospheric variables to investigate climate interactions.
• Model trace gas distributions from the voyage tracks to understand ocean-atmosphere exchange processes.

Strengths

• Data collected during two dedicated research voyages (IN2024_V01 and IN2024_T01) in the Southern Ocean.
• Focuses on key trace gases (DMS and MeSH) relevant to atmospheric science and climate studies.
• Covers a specific temporal range from January to March 2024.

Limitations

• The number of data points (rows) and specific measured variables (columns) are unknown.
• Data is provided in HTML and PNG formats, which may not be immediately suitable for quantitative analysis without extraction.
• Limited to two voyages in early 2024, providing a snapshot rather than long-term temporal coverage.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

January 2 to March 20, 2024 (AEST).

Freshness

Data was last updated in March 2026.

Geography

Southern Ocean, along voyage tracks from Hobart to Fremantle and Fremantle to Hobart.