Data for: Gas Transfer Velocities Evaluated Using Carbon Dioxide as a Tracer Show High Streamflow to Be a Major Driver of Total CO2 Evasion Flux for a Headwater Stream

This dataset contains direct in-situ measurements and modeled values of stream properties and air temperature of a steep, turbulent headwater stream in southwestern British Columbia, Canada, between November 2016 and June 2017. The dataset is associated with a study of CO<sub>2</sub> evasion from experimental stream G-H in the University of British Columbia Malcolm Knapp Research Forest, which estimated gas transfer velocities of CO<sub>2</sub> (<i>k</i><sub>CO2</sub>) and CO<sub>2</sub> evasion using an automated in situ CO<sub>2</sub> tracer technique. <br> <br> <i>McDowellJohnson2018_continuousdata.tab</i> contains continuous half-hourly stream data for the duration of the study period. <br> <br> <i>McDowellJohnson2018_injectiondata.tab</i> contains averaged values of stream data associated with 38 one-hour injections of CO<sub>2</sub>. <br> <br> <b>Continuous data variables:</b> date-time, CO<sub>2</sub> concentration, pH, water temperature, electrical conductivity, air temperature, stream discharge, stream depth, water velocity, modeled gas transfer velocity of CO<sub>2</sub>, modeled gas transfer velocity of CO<sub>2</sub> normalized to a Schmidt number of 600, dissolved oxygen concentration <br> <br> <b>Injection data variables:</b> date-time, stream depth, gas transfer velocity of CO<sub>2</sub>, gas transfer velocity of CO<sub>2</sub> normalized to a Schmidt number of 600, stream discharge, water temperature, water velocity <br> <br> This work was conducted on the unceded, ancestral territories of the xʷməθkʷəy̓əm (Musqueam) and Katzie peoples.