SI: Shadow Index

In VegSpecIndex: Vegetation and Spectral Indices for Environmental Assessment

Shadow Index

Description

The characteristics of canopy shadow are associated by the total spectral radiance that is reflected from the canopy. Canopy shadow provides essential information about trees and plants arrangement. As a remote sensing index, Shadow Index (SI) is calculated using the visible bands of the spectrum, in a way that simulates the amount energy not reflected back to the sensor. It is usually combined with other indices like AVI and BSI to understand the status of vegetation (Sykas, 2025).

Usage

SI (BLUE, GREEN, RED)

Arguments

BLUE	Blue spectral band
GREEN	Green spectral band
RED	Red spectral band

Value

Shadow Index

References

Sykas, D. (2025). Spectral Indices with multispectral satellite data. Why Use Spectral Indices from Satellites <https://www.geo.university/pages/spectral-indices-with-multispectral-satellite-data/>.

Examples

SI (0.034204,	0.058156,	0.061663)

VegSpecIndex documentation built on April 4, 2025, 4:28 a.m.