Table 2. Linear regression statistics for comparison of eddy covariance versus chamber CO2 flux measurements, as well as for the energy balance closure.
Kaserstattalm | Neustift | ||
---|---|---|---|
EC vs. chamber | n | 70 | n.a. |
slope | 0.81 | n.a. | |
y-intercept | −1.97 | n.a. | |
RMSE | 4.68 | n.a. | |
r2 | 0.87 | n.a. | |
Energy balance closure | n | 811 | 2179 |
slope | 0.71 | 0.72 | |
y-intercept | 4.23 | 5.49 | |
RMSE | 110.61 | 83.97 | |
r2 | 0.93 | 0.79 | |
EBR | 0.73 | 0.75 |
n … number of half-hourly samples, RMSE … root mean squared error, EBR … energy balance ratio (cf. Wilson et al. 2002), n.a. … not available