Fig. 5: Temperature normalized (20 °C) diel rates of primary production 20δ18O2-GPP from dual δ18O2 and O2 model compared to diel GPPO2 rates from O2–only model.
From: High rates of daytime river metabolism are an underestimated component of carbon cycling

20δ18O2-GPP rates from dual δ18O2 and O2 model (solid bars) rates compared to GPPO2 (patterned bars) estimated with O2—only metabolism models. Labels indicate the magnitude of the difference between 20δ18O2-GPP and GPPO2 for each site. Black bars indicate ±1 SD of posterior model estimates.