Table 3.
Coefficient estimates for the intercept and the four climate covariates for the hurricane data at upper quantiles, with 90% confidence intervals
| Unconstrained | Constrained | |||||
|---|---|---|---|---|---|---|
| τ = 0.9 | τ = 0.95 | τ = 0.99 | τ = 0.9 | τ = 0.95 | τ = 0.99 | |
| INT | 109.15* (85.01, 133.29) | 120.06* (88.26, 151.86) | 134.65* (119.41, 149.89) | 107.83* (84.56, 131.11) | 117.95* (91.16, 144.74) | 140.63* (121.44, 159.83) |
| NAO | −5.03* (−9.91, −0.14) | −0.95 (−6.38, 4.49) | 1.43 (−1.58, 4.44) | −4.93* (−9.61, −0.26) | −3.06 (−8.04, 1.93) | −3.06 (−6.54, 0.43) |
| SOI | 5.74* (0.40, 11.09) | 1.23 (−5.75, 8.21) | −3.98* (−7.44, −0.51) | 5.21* (0.02, 10.39) | 3.32 (−2.62, 9.27) | −2.80 (−7.10, 1.50) |
| SST | 6.16* (1.34, 10.97) | 4.19 (−1.65, 10.03) | −0.73 (−3.52, 2.06) | 5.17* (0.57, 9.77) | 5.17* (0.12, 10.22) | 3.21 (−0.48, 6.90) |
| SUN | 3.48 (−1.21, 8.17) | 1.95 (−2.60, 6.50) | 6.19* (2.86, 9.52) | 3.16 (−1.43, 7.75) | 3.16 (−1.17, 7.49) | 3.16 (−0.52, 6.84) |
INT, intercept; NAO, North Atlantic Oscillation Index; SOI, Southern Oscillation Index; SST, Atlantic sea surface temperature; SUN, average sunspot number;
*,
statistically significant coefficients at α = 0.1.