Figure 3.

Coefficient of determination (i.e., Pearson correlation squared or R ²) between the natural log of model/observed annual wet deposition, (a) for NO₃ ⁻, (b) for NH₄ ⁺, and (c) for SO₄ ²⁻, for 2002–2012. A seasonal version of this plot is included in the supporting information (Figure S1).