2020 surface underway data from the R/V F.G. Walton Smith includes air-sea pCO2 differences, atmospheric and water pCO2, barometric pressure, sea surface salinity, and temperature. The dataset contains chemical, meteorological, and physical measurements collected in the Gulf of Mexico and North Atlantic Ocean. It was contributed by NOAA's National Centers for Environmental Information (NCEI) as part of the Global Coastal Carbon Data Project.
Use Cases
- Modeling air-sea CO2 flux using the air-sea difference of partial pressure of carbon dioxide (pCO2) and sea surface temperature.
- Analyzing coastal carbon system variability by correlating pCO2 in water with concurrent sea surface salinity and temperature measurements.
- Calibrating satellite-derived salinity products using in-situ sea surface salinity data from the thermosalinograph.
- Studying atmospheric pressure influence on marine pCO2 measurements by examining barometric pressure sensor records.
Strengths
- Data collected during dedicated coastal research cruises in 2020, providing targeted temporal coverage.
- Includes multiple directly measured carbon system variables: pCO2 in atmosphere, pCO2 in water, and their difference.
- Measurements from instruments including carbon dioxide gas analyzers and thermosalinographs ensure direct sensor data.
Limitations
- Sample size and spatial resolution are unknown, limited to a single vessel's 2020 cruise tracks.
- Lacks complementary depth profiles or nutrient data, restricting analysis to surface phenomena.
- Temporal coverage is limited to one year, preventing analysis of long-term trends or seasonal cycles.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) Accession 0219353.
- Collection Method
- Surface underway observations collected via barometric pressure sensor, carbon dioxide gas analyzer, shower head chamber equilibrator, and thermosalinographs aboard the R/V F.G. Walton Smith.
- Time Range
- 2020.
- Freshness
- Data from 2020, last updated December 2020.
- Geography
- Gulf of Mexico and North Atlantic Ocean.