Surface underway measurements of carbon dioxide partial pressure, salinity, and temperature were collected during five bay-wide research cruises in the Chesapeake Bay. The dataset contains observations from the first bay-wide study of surface pCO2 and air-water CO2 flux along the main stem. Data were collected by NOAA-supported researchers from May 2016 to February 2019.
Use Cases
- Calculate air-water CO2 flux using partial pressure of carbon dioxide and sea surface temperature data.
- Analyze seasonal variability in carbon dioxide levels from measurements taken across four cruises in 2016 and one in 2019.
- Model relationships between sea surface salinity, temperature, and carbon dioxide partial pressure along the Chesapeake Bay main stem.
- Validate satellite-derived sea surface temperature and salinity products with in-situ underway observations.
Strengths
- Data from the first bay-wide observational study of surface pCO2 in the Chesapeake Bay.
- Includes five distinct research cruises providing temporal coverage across multiple seasons and years (2016-2019).
- Measures three key oceanographic variables: pCO2/fugacity, salinity, and temperature.
Limitations
- Sample size is limited to five discrete cruise periods, not continuous monitoring.
- Spatial coverage is restricted to the ship tracks along the main stem of the Chesapeake Bay.
- The most recent data is from early 2019, which may not reflect current conditions.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI Accession 0191507).
- Collection Method
- Surface underway observations collected from the R/V Rachel Carson and a commercial boat during research cruises.
- Time Range
- 2016-05-04 to 2019-02-22.
- Freshness
- Data collection ended on 2019-02-22.
- Geography
- Chesapeake Bay, specifically along the main stem.