Table 1. Difference in R² values before and after the downscaling from 0.75° resolution to 30 arc sec resolution by means of orographic wind effect correction globally and for five topographic complex regions.

Month	Alps	Andes	Himalaya	Rocky Mnts.	South Africa	Global
Positive values indicate an increase in fit between meteorological stations and model predictions, negative values indicate an increase in noise. Rocky Mnts, Rocky Mountains.
1	0.03	0.03	0.02	0.00	0.02	0.01
2	0.05	0.02	0.03	0.01	0.02	0.01
3	0.05	0.02	0.06	0.02	0.01	0.01
4	0.08	0.00	0.14	0.02	0.03	0.02
5	0.03	0.01	0.10	0.00	0.00	0.01
6	0.01	0.01	0.17	0.01	−0.03	0.03
7	−0.03	0.02	0.20	0.01	−0.02	0.04
8	−0.04	0.01	0.15	0.00	−0.02	0.02
9	0.02	−0.01	0.13	0.00	0.02	0.01
10	0.03	0.00	0.07	0.00	0.02	0.01
11	0.02	0.03	−0.01	0.00	0.01	0.01
12	0.02	0.04	0.00	0.00	0.00	0.01