Fig. 1.

Monthly mean OCS (F_OCS, pmol⋅m⁻²⋅s⁻¹; black) and CO₂ (F_CO2, µmol⋅m⁻²⋅s⁻¹; green squares) fluxes for 2011. u* > 0.17 m⋅s⁻¹ for all data. (A) Total OCS and CO₂ flux by month. Air temperature (red triangles; °C) and surface soil temperature (orange diamonds; °C); CO₂ net flux includes changes in storage, but this is not required for OCS. (B) Nighttime OCS (black) and CO₂ (green) flux (PAR < 40 µE⋅m⁻²⋅s⁻¹). (C) Daytime OCS and CO₂ fluxes with PAR > 600 µE⋅m⁻²⋅s⁻¹. Error bars indicate the 95% confidence intervals for all data within the month.