GIS Based Approach for Vulnerability Assessment of the Karnataka Coast, India

Table 4

Ranges of variables for vulnerability ranking.

Variable	Ranking of vulnerability
	1	2	3	4	5
Coastal slope (%)	>0.60	0.5–0.6	0.4–0.5	0.3–0.4	<0.3
Mean tide range (m)	<1.0	1.0–2.0	2.0–3.0	3.0–4.0	>4.0
Regional elevation (m)	<10	10–20	20–30	30–40	>40
Shoreline change rate (m year^−1)	>+2.0	+1.0 to +2.0	−1.0 to +1.0	−2.0 to −1.0	<−2.0
Mean significant wave height (m)	<0.7	0.7–1.4	1.4–2.1	2.1–2.8	>2.8
Population (person per 200 m^2)	<19	44–20	80–45	326–81	>326