The Enhanced Vegetation Index (EVI) was designed to quantify vegetation greenness by the combination of NIR, Red, and Blue spectral bands. The extended formula of EVI includes the corrections for the atmospheric conditions and considers the effects from the canopy background. Similar to the NDVI, the values of EVI range from -1 to +1, with the range indicating healthy vegetation located between 0.2 and 0.8 (Lemenkova &amp; Debeir, 2023).

Enhanced Vegetation 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 Unfortunately, the majority of these resources lack a standard Application Programming Interface, are out-of-date, closed-source, or are not linked to a catalogue.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 

EVI function

<dl><dt>NIR</dt>
<dd>Near-infrared spectral band</dd><dt>RED</dt>
<dd>Red spectral band</dd><dt>BLUE</dt>
<dd>Blue spectral band</dd></dl>

Arguments

Enhanced Vegetation Index — EVI

<dl>

<dt>NIR</dt>
<dd>Near-infrared spectral band</dd>

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

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

</dl>

EVI: Enhanced Vegetation Index

Description

Usage

Value

Arguments

References

Examples