Table 2: Variogram models and parameters for UK interpolation of PRCPTOT and TXx.

IndexTemporal periodDependent parametersVariography
ModelSillRangeNugget

PRCPTOT1948–1975Longitude and LatitudeSpherical300000400115000
1976–1992Longitude and LatitudeSpherical200000550260000
1993–2007Longitude and LatitudeSpherical270000500136000

TXx1948–1975Longitude and LatitudeSpherical104201
1976–1992Longitude and LatitudeSpherical2.14801
1993–2007Longitude and LatitudeSpherical3.94501.4