S.N.

Parameters

Abbreviation

Significance

1

Slope aspect

Asp

Solar insolation, evapotranspiration, species distribution and abundance

2

Total curvature

Cr

Total surface curvature

3

Distance to drainage

Dtd

Influence of fluvial processes

4

Distance to ridge

Dtr

Tectonic geomorphology, amplification of seismic shaking, accumulation of flow

5

Drainage density

Dd

Intensity of fluvial processes, stages of channelization

6

Drop

Dr

Hydrological slope, geomorphological

7

Elevation

El

Climate, vegetation, potential energy

8

Elevation-relief ratio

Er

Stages of landscape development; characterization of topography

9

Internal relief

Ir

Characteristic of terrain roughness

10

Profile curvature

Pfc

Flow acceleration, erosion, deposition rate, geomorphology

11

Plan curvature

Plc

Converging/diverging flow, soil water content, soil characteristics

12

Slope

Sl

Velocity of surface and subsurface flow, geomorphology, soil water content

13

Stream power index

SPI

Measures erosive power of flowing water

14

Sediment transport capacity index

STCI

Net erosion and deposition rates; provides an estimate of transportation capacity and erosion

15

Terrain characterization index

TCI

Descriptor of terrain shapes and spatial variability of soil depths

16

Topographic wetness index

TWI

Soil moisture conditions and variability of soil types