This dataset includes Surface underway, chemical, meteorological and physical data collected from F.G. Walton Smith in the Coastal Waters of Florida, Coastal Waters of Louisiana, Coastal Waters of Mississippi, Florida Keys National Marine Sanctuary, Gulf of Mexico and North Atlantic Ocean from 2016-01-04 to 2016-12-13. These data include AIR-SEA DIFFERENCE - PARTIAL PRESSURE (OR FUGACITY) OF CARBON DIOXIDE, BAROMETRIC PRESSURE, Partial pressure (or fugacity) of carbon dioxide - atmosphere, Partial pressure (or fugacity) of carbon dioxide - water, SALINITY and SEA SURFACE TEMPERATURE. The instruments used to collect these data include Barometric pressure sensor, Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and thermosalinographs. These data were collected by Kevin F. Sullivan and Rik Wanninkhof of NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) and Frank J. Millero, Frank J. Millero, Frank J. Millero, and Ryan J. Woosley of Rosenstiel School of Marine and Atmospheric Science (RSMAS) as part of the Coastal_Walton_Smith_WS16004_33WA20160104, Coastal_Walton_Smith_WS16015_33WA20160115, Coastal_Walton_Smith_WS16074_33WA20160314, Coastal_Walton_Smith_WS16112_33WA20160421, Coastal_Walton_Smith_WS16130_33WA20160509, Coastal_Walton_Smith_WS16137_33WA20160516, Coastal_Walton_Smith_WS16140_33WA20160519, Coastal_Walton_Smith_WS16147_33WA20160526, Coastal_Walton_Smith_WS16151_33WA20160531, Coastal_Walton_Smith_WS16195_33WA20160713, Coastal_Walton_Smith_WS16207_33WA20160725, Coastal_Walton_Smith_WS16259_33WA20160915, Coastal_Walton_Smith_WS16263_33WA20160919, Coastal_Walton_Smith_WS16303_33WA20161029, Coastal_Walton_Smith_WS16336_33WA20161201 and Coastal_Walton_Smith_WS16347_33WA20161212 dataset. CDIAC associated the following cruise ID(s) with this dataset: 33WA20160104, 33WA20160115, 33WA20160314, 33WA20160421, 33WA20160509, 33WA20160516, 33WA20160519, 33WA20160526, 33WA20160531, 33WA20160713, 33WA20160725, 33WA20160915, 33WA20160919, 33WA20161029, 33WA20161201 and 33WA20161212 The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins.