Climate Regression Function (CAI)
|
Develops local relationships between a climate predictor grid and the interpolated variable |
Incorporates physiographic features implicit in the climate predictor grid |
Station data; climate predictor grid |
This paper, Mapping Methods Section; [37] Section 4b |
Cluster Weighting
|
Downweights stations clustered with others |
-- |
Station locations and elevations |
[8], Appendix B |
Distance Weighting
|
Upweights stations that are horizontally close |
Horizontal coherence of climate regimes |
Station locations |
[8], Section 4.2.1 |
Elevation Weighting
|
Upweights stations that are vertically close |
Vertical coherence of climate regimes |
DEM; station locations and elevations |
[7], Section 4.1 |
Coastal Proximity Weighting
|
Upweights stations having similar exposure to coastal influences |
Effects of water bodies on temperature and moisture |
DEM; coastal proximity grid; station locations |
[7], Section 6; [30] Section 2.3.2; [8] Section 4.2.2 |
Two-Layer Atmosphere Weighting
|
If an inversion is present, upweights stations in the same vertical layer (boundary layer or free atmosphere) |
Temperature inversions; vertical limit to moist boundary layer (humidity) |
DEM; inversion height grid; station locations |
[7], Section 7; [30], Section 2.3.4 |
Topographic Position Weighting
|
Upweights stations having similar heights above the local terrain |
Cold air drainage and pooling in topographic depressions |
DEM; topographic index grid; station locations |
[38], Section 4; [8], Section 4.2.5 |