146 methane concentration and 169 carbon dioxide partial pressure measurements were collected during the Meteor 43_2 research cruise in the North Atlantic. The data were gathered by researchers Robin Keir and Michel Frankignouelle as part of the JGOFS and OMEX programs. The cruise took place from December 28, 1998, to January 14, 1999.
Use Cases
- Analyze correlations between methane concentration and methane saturation using the 146 and 145 respective measurements.
- Model the relationship between partial pressure of carbon dioxide (pCO2) and total inorganic carbon concentration (TCO2) from the 169 paired records.
- Study spatial and temporal variability of greenhouse gases within the defined +37N to +42N latitude and +9W to +11W longitude bounding box.
- Validate ocean carbon cycle models using in-situ pCO2 and TCO2 measurements computed from pH and alkalinity.
Strengths
- Provides 629 total discrete measurements across four key gas variables.
- Data is precisely geolocated to a specific cruise track and time period (late Dec 1998 to mid Jan 1999).
- Measurements include both directly observed (methane concentration) and derived (pCO2, TCO2) parameters.
Limitations
- Sample size is limited to a single, short-duration cruise of less than three weeks.
- Geographic coverage is restricted to a small region of the North Atlantic Ocean.
- Data is over 25 years old, which may limit relevance for contemporary climate studies without complementary modern data.
Provenance
- Source
- Measurements by Robin Keir (methane) and Michel Frankignouelle (carbon dioxide) during the Meteor 43_2 cruise.
- Collection Method
- Methane measured by gas chromatography; pCO2 and TCO2 computed from shipboard pH and alkalinity measurements.
- Time Range
- 1998-12-28 to 1999-01-14
- Freshness
- Data collection ended on 1999-01-14; no updates are expected.
- Geography
- North Atlantic Ocean, bounded by +37N to +42N latitude and +9W to +11W longitude.