VARI

The Visible Atmospherically Resistant Index (VARI) is designed to emphasize vegetation in the visible portion of the spectrum, while mitigating illumination differences and atmospheric effects. In other words it is used to estimate the fraction of vegetation with a minimal sensitivity to atmospheric effects (Mokarram et al., 2016).

Visible Atmospherically Resistant Index 

Earth system dynamics, such as plant dynamics, water bodies, and fire regimes, are widely monitored using spectral indicators obtained from multispectral remote sensing products. There is a great need for spectral index catalogues and computing tools as a result of the quick rise of suggested spectral indices. Unfortunately, the majority of these resources lack a standard Application Programming Interface, are out-of-date, closed-source, or are not linked to a catalogue. We now introduce 'VegSpecIndex', a standardised list of spectral indices for studies of the earth system. A thorough inventory of spectral indices is offered by 'VegSpecIndex' and is connected to an R library. For every spectral index, 'VegSpecIndex' provides a comprehensive collection of information, such as names, formulae, and source references. The user community may add more items to the catalogue, which will keep 'VegSpecIndex' up to date and allow for further scientific uses. Additionally, the R library makes it possible to apply the catalogue to actual data, which makes it easier to employ remote sensing resources effectively across a variety of Earth system domains.

Tanuj Misra 

VegSpecIndex

Vegetation and Spectral Indices for Environmental Assessment

Avijit Ghosh

Ram S Chaurasia

Tanuj Misra

Amit Kumar Singh

Shailendra Kumar

Abhishek Chakraborty

Devanand 

J P Singh 

A K Shukla 

VARI function

<dl><dt>GREEN</dt>
<dd>Green spectral band</dd><dt>RED</dt>
<dd>Red spectral band</dd><dt>BLUE</dt>
<dd>Blue spectral band</dd></dl>

Arguments

Visible Atmospherically Resistant Index — VARI

<dl>

<dt>GREEN</dt>
<dd>Green spectral band</dd>

<dt>RED</dt>
<dd>Red spectral band</dd>

<dt>BLUE</dt>
<dd>Blue spectral band</dd>

</dl>

Visible Atmospherically Resistant Index

VARI: Visible Atmospherically Resistant Index

Description

Usage

Value

Arguments

References

Examples