Table 1: Ranges for Vulnerability Ranking of Variables on the Pacific Coast.
Variables | Very
Low 1 |
Low 2 |
Moderate 3 |
High 4 |
Very
High 5 |
---|---|---|---|---|---|
GEOMORPHOLOGY | Rocky cliffed coasts, Fjords | Medium cliffs, Indented coasts | Low cliffs, Glacial drift, Alluvial plains | Cobble Beaches, Estuary, Lagoon | Barrier beaches, Sand beaches, Salt marsh, Mud flats, Deltas, Mangrove, Coral reefs |
SHORELINE EROSION/ACCRETION (m/yr) | > 2.0 | 1.0
- 2.0 |
-1.0
- 1.0 |
-2.0
- -1.0 |
<
-2.0 |
COASTAL SLOPE (%) | > 14.7 | 10.9
- 14.65 |
7.75
- 10.85 |
4.6
- 7.7 |
<
4.56 |
RELATIVE SEA-LEVEL CHANGE (mm/yr) | <
1.8 |
1.8
- 2.5 |
2.5
- 3.0 |
3.0
- 3.4 |
>
3.4 |
MEAN WAVE HEIGHT (m) | <
1.1 |
1.1
- 2.0 |
2.0
- 2.25 |
2.25
- 2.60 |
>
2.6 |
MEAN TIDE RANGE (m) | >
6.0 |
4.0
- 6.0 |
2.0
- 4.0 |
1.0
- 2.0 |
<
1.0 |