SAVI (Soil Adjusted Vegetation Index) is a vegetation index designed to minimize soil brightness influences using a soil-brightness correction factor (L).

What is the SAVI formula?

The formula is SAVI = ((NIR - Red) / (NIR + Red + L)) × (1 + L).

What is the L value in SAVI?

The L value is a soil brightness correction factor. It varies from 0 to 1 depending on vegetation cover.

What is the default L value?

The default L value is generally set to 0.5, which works well for most intermediate vegetation cover scenarios.

SAVI Calculator

Remote Sensing & Vegetation Analysis Tool

SAVI Calculator

Calculate Soil Adjusted Vegetation Index Easily

A fast and easy calculator for estimating vegetation index values while considering soil brightness effects. Ideal for agriculture, environmental studies, and GIS.

Input Parameters

NIR (Near Infrared)

Red Reflectance

Soil Brightness Correction Factor (L)

SAVI Result

0.0000

Awaiting Calculation

Low (-1) High (1)

*Interpretation is indicative and may vary based on specific field conditions, sensor type, and atmospheric corrections.

Example Calculation

To understand how the formula works, here is an example using common reflectance values:

NIR = 0.65
Red = 0.25
L = 0.5

Formula:
SAVI = ((0.65 - 0.25) / (0.65 + 0.25 + 0.5)) × (1 + 0.5)
SAVI = (0.4 / 1.4) × 1.5
SAVI = 0.4286

What is SAVI?

SAVI (Soil Adjusted Vegetation Index) merupakan indeks vegetasi yang dirancang untuk membantu mengurangi pengaruh pantulan kecerahan latar belakang tanah pada pengukuran vegetasi.

Indeks ini sangat berguna di area dengan tutupan vegetasi yang rendah hingga menengah, di mana tanah yang terekspos dapat mendistorsi nilai indeks konvensional seperti NDVI.

Banyak diaplikasikan pada Remote Sensing, GIS, Agricultural Monitoring, dan Land Cover Analysis.

SAVI Formula

SAVI = ((NIR - Red) / (NIR + Red + L)) × (1 + L)

NIR: Near Infrared reflectance value
Red: Red band reflectance value
L: Soil Brightness Correction Factor

Default L = 0.5 (Optimal untuk sebagian besar kondisi lahan).

How to Calculate SAVI

1
Masukkan nilai NIR: Input nilai reflektansi dari band inframerah dekat.
2
Masukkan nilai Red: Input nilai reflektansi dari band merah.
3
Tentukan nilai L: Pilih atau ketik manual faktor koreksi tanah (default 0.5).
4
Klik Calculate: Tekan tombol "Calculate SAVI" untuk melihat hasil dan interpretasi kondisi vegetasi.

SAVI Calculator Use Cases

Agricultural Monitoring
Crop Health Analysis
Vegetation Mapping

Remote Sensing
GIS Analysis
Land Monitoring

Environmental Studies
Research & Education
Precision Agriculture

Frequently Asked Questions (FAQ)

SAVI (Soil Adjusted Vegetation Index) is a modification of NDVI with a correction factor (L) applied to minimize soil background influence, especially in areas with sparse vegetation.

The standard formula is SAVI = ((NIR - Red) / (NIR + Red + L)) × (1 + L), where NIR is Near Infrared, Red is the red band reflectance, and L is the soil adjustment factor.

The L value is a calibration factor that reduces soil noise. L=0 means SAVI equals NDVI (high vegetation). L=1 is used for very low vegetation. L=0.5 is the standard default for intermediate cover.

Like NDVI, SAVI values typically range from -1 to 1. Negative values usually indicate non-vegetated surfaces like water or snow, while higher positive values indicate dense, healthy vegetation.

Yes, SAVI can be calculated using imagery from any multispectral sensor that has Red and Near Infrared (NIR) bands, including Sentinel-2, Landsat 8/9, and MODIS.

Result copied!

SAVI Calculator

Calculate Soil Adjusted Vegetation Index Easily

SAVI = ((NIR - Red) / (NIR + Red + L)) × (1 + L)

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