Figure 5. Parameter f_o from Eq. (3) describing the additional low-pass filtering effect induced by the iDEC_nn and iDEC_li methods.

Error bars refer to ± 1 standard deviation. Lines represent best fits to the data using the following equations, where ΔT (s) refers to the sampling interval:

iDEC_nn: f_o(CO₂) = 0.8897 ΔT^−0.9625, f_o(H₂O) = 0.899 ΔT^−0.9434;

iDEC_li: f_o(CO₂) = 0.6834 ΔT^−0.9346, f_o(H₂O) = 0.6645 ΔT^−0.9278.