Southern Ocean Atmospheric Trace Gas Measurements from RV Investigator Voyages

Aggregating Proton Transfer Reaction Mass Spectrometer measurements of dimethyl sulfide (DMS) and methanethiol (MeSH) in the Southern Ocean atmosphere. The data were collected during two RV Investigator voyages, IN2024_V01 and IN2024_T01, spanning from January 2 to March 20, 2024.

Use Cases

• Analyze dimethyl sulfide (DMS) concentration time series to study its role in Southern Ocean biogeochemical cycling.
• Investigate correlations between methanethiol (MeSH) measurements and atmospheric or oceanic processes during the voyages.
• Use the trace gas data to model ocean-atmosphere interactions and climate feedbacks in the Southern Ocean region.
• Support studies on the spatial and temporal distribution of DMS and MeSH across the voyage transects from Hobart to Fremantle and back.

Strengths

• Data covers two distinct research voyages (IN2024_V01 and IN2024_T01) providing temporal and spatial context.
• Focuses on key trace gases (DMS and MeSH) relevant to atmospheric science and biogeochemistry.
• Measurements were made using a Proton Transfer Reaction Time-of-Flight Mass Spectrometer (PTR-ToF-MS), a specific analytical technique.

Limitations

• The number of data rows, columns, and file size are unknown, making it difficult to assess the dataset's scale and structure.
• Primary data formats listed are HTML and PNG, which may not be ideal for direct quantitative analysis without underlying data files.
• The license is unspecified, which could create uncertainty for users regarding redistribution and commercial use.

Provenance

Source

CSIRO Marlin Data Catalogue

Collection Method

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

Time Range

January 2, 2024 to March 20, 2024 (AEST).

Freshness

Data was last updated on March 20, 2026.

Geography

Southern Ocean, along transects between Hobart, Australia and Fremantle, Australia.