| Summary: | <p>CO2 - Surface Underway pCO2 Reduced<br /> <br /> <i>Data columns:</i><br /> Note: Contains additional information about the individual parameters<br /> beyond what is entered in the BCO-DMO parameter metadata<br /> <br /> DOY_UTC: Decimal day of year on UTC. 0000h on 1Jan = 1.00000.<br /> Time stamp from CPU clock, set automatically by a web-based NTP server.<br /> <br /> Lat: signed latitude in decimal degrees<br /> <br /> Lon: signed longitude in decimal degrees<br /> <br /> SST: Sea Surface Temperature, as determined by RHB surface intake sensor.<br /> <br /> Equilibrator T was about 0.8° warmer than SST, and lagged SST by about 30 seconds.<br /> SSS: Salinity (PSS) as measured by the SBE45 TSG unit plumbed to the outlet of the equilibrator.<br /> <br /> pCO2_SST: CO2 partial pressure in µatm, at SST. xCO2 of any kind, wet or dry, is not reported.<br /> <br /> P_atm_kPa: The ambient atmospheric pressure recorded by the LI840, directly vented to the lab air.<br /> <br /> xCO2atm_wet_ppm: The mixing ratio of CO2 in ambient air at ambient humidity,<br /> drawn from an inverted u-tube intake with a shrouded intake on the 02 deck.<br /> Raw data was calibrated exactly as for equilibrator pCO2, but not corrected for<br /> pressure. Periodic spikes in the data were most likely associated with exhaust<br /> contamination, and account for all observations above 385 ppm. Final data have <br /> ejected values higher than 385 ppm for this field.<br /> <br /> Vxmis: Uncalibrated voltage from Wetlabs CStar transmissometer.<br /> <br /> VO2: Uncalibrated voltage from SBE43 O2 sensor.<br /> <br /> VFl: Uncalibrated voltage from WetLabs WetStar chlorophyll fluorometer.<br /> <br /> Bad data: Bad data were replaced by NaN.<br /> Note: NaN replaced by BCO-DMO standard of 'nd' in BCO-DMO processing</p>
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