We need to identify the small number (3-5?) of focal regions that we will use for further validation after we finish with Oregon. These regions should coarsely represent the variety of global climates and include areas that we expect to be challenging (frequent clouds, topographic heterogeneity). Furthermore, we may want to select regions with unusually high station density so we can easily do cross validation and thin to explore the implications of fewer stations (while still having plenty of data for validation).

1. Oregon (currently working on this)
2. Costa Rica
3. South Africa (Adam has the complete South African weather station record)
4. Norway (?)