Data analysis for shipboard atmospheric CO2 measurements from research cruises on NOAA ship Ronald H. Brown and comparison to two global boundary layer datasets

We analyze shipboard atmospheric mole fraction of CO2 (xCO2) measurements from research cruises taken on the NOAA ship Ronald H. Brown and compare them with two marine boundary layer xCO2 datasets, CarbonTracker-CO2 and GlobalView-CO2 from the NOAA/OAR Global Monitoring Laboratory. Analysis of shipboard xCO2 measurements includes removing data which has been flagged as questionable through a previously applied quality-control process, environmental analysis, grouping the measurements, and statistical analysis. The resultant cleaned dataset is then compared to each of the two boundary layer xCO2 datasets and the comparisons are catalogued in this data report.