Morphological index

Index 1

Index 2

Index 3

Index 4

Index 5

Basic Geometric Morphological

Area (km²)

S

Perimeter (km)

P

K = Perimeter (P)/ Area (S)

Longest Axis Length (km) L

Maximum Width (km) W

European Geometric Shape

Shoreline Development Index

$\text{SDI}=P/2\sqrt{\pi S}$ (1)

Lake Shape Complexity

$e=P^2/S$ (2)

Compactness Ratio

$C=S/S_0$ (3)

(S₀ is the minimum circumscribed circle area)

Form ratio

$F_R=S/L^2$ (4)