Table 1 Spatial parameters OLS and GAM with all variables considered as non-linear
Model | Parameter | Spatio-temporal OLS model | GAM model with non-linear variables | ||
|---|---|---|---|---|---|
Mean (SD) | 95% CI | Mean (SD) | 95% CI | ||
M1 | Error | 0.000064 (0.0000077) | (0.00005,0.00008) | 0.00053 (0.000064) | 0.00042;0.00067 |
Spatial variance | 0.17 (0.036) | (0.11,0.25) | 11 (2.2) | 7;16 | |
Range | 333 (35) | (270,406) | 332 (31) | 276;396 | |
Time coefficient (a) | 0.97 (0.0044) | (0.96,0.98) | 0.99 (0.0016) | 0.98;0.99 | |
M2 | Error | 0.000026 (0.0000045) | (0.000018,0.000036) | 0.00047 (0.000062) | 0.00036;0.0006 |
Spatial variance | 0.055 (0.01) | (0.038,0.077) | 8.1 (1.7) | 5.2;12 | |
Range | 154 (15) | (128,185) | 278 (27) | 229;336 | |
Time coefficient (a) | 0.97 (0.0044) | (0.96,0.98) | 0.99 (0.0015) | 0.99;0.99 | |
M3 | Error | 0.000071 (0.000012) | (0.00005,0.000095) | 0.0006 (0.000082) | 0.00045;0.00077 |
Spatial variance | 0.021 (0.0053) | (0.012,0.033) | 10 (2.3) | 6.4;15 | |
Range | 153 (21) | (114,197) | 342 (36) | 279;422 | |
Time coefficient (a) | 0.93 (0.014) | (0.89,0.95) | 0.99 (0.0018) | 0.98;0.99 | |
M4 | Error | 0.000023 (0.0000043) | (0.000016,0.000032) | 0.00053 (0.000073) | 0.0004;0.00068 |
Spatial variance | 0.044 (0.011) | (0.026,0.068) | 8 (1.9) | 4.9;12 | |
Range | 142 (17) | (111,176) | 290 (33) | 230;360 | |
Time coefficient (a) | 0.96 (0.0062) | (0.95,0.97) | 0.99 (0.0016) | 0.98;0.99 | |