Table 3. List of candidate models.
Variables include covariates for sea ice concentration (Conc), squared terms of concentration (Conc2), proximity to the 15% sea ice edge (Dist_15) and 90% dense pack ice (Dist_90), underwater percent slope (Slope), water depth (Depth), and proximity to the shore (Dist_shore), 400–1000 m continental slope region (Dist_slope), and Barrow Canyon (Dist_canyon).
| Model number | Model structure |
|---|---|
| 1 | Conc + Conc2 + Dist_15 +Dist_90 + Slope + Depth |
| 2 | Conc + Slope + (Conc * Slope) |
| 3 | Conc + Dist_15 + Dist_90 + Slope + Depth + (Conc*Slope) + (Dist_15 *Slope) |
| 4 | Dist_slope + Dist_15 + (Dist_slope*Dist_15) |
| 5 | Dist_slope + Dist_canyon + Conc + Conc2 + Dist_15 + Dist_90 + Slope + Depth |
| 6 | Dist_slope + Dist_canyon + Conc + Dist_15 + Dist_90 + Slope + Depth + (Conc*Slope) + (Dist_15*Slope) |
| 7 | Dist_slope + Dist_canyon + Conc + Dist_15 + Dist_90 + Slope |
| 8 | Dist_slope + Conc + Conc2 + Dist_15 + Slope + Depth |
| 9 | Dist_slope + Conc + Dist_15 + Dist_90 + Slope + Depth + (Conc*Slope) + (Dist_15*Slope) |
| 10 | Dist_shore + Conc |
| 11 | Dist_shore + Conc + Conc2 |
| 12 | Dist_shore + Dist_15 + Dist_slope |
| 13 | Dist_shore + Conc + Conc2 + (Dist_shore*Conc) |
| 14 | Dist_shore + Dist_canyon + Conc + Conc2 + Slope |
| 15 | Dist_canyon + Conc + Slope + Depth + Dist_90 + (Conc*Slope) |
| 16 | Dist_shore + Conc + Slope + Depth + (Conc*Depth) |