Landsat Surface Reflectance-Derived Spectral Indices

Landsat Modified Soil Adjusted Vegetation Index

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Landsat Surface Reflectance and Modified Soil Adjusted Vegetation Index

This image displays a (left) Landsat 8 Surface Reflectance (SR) and (right) the SR-derived Modified Soil Adjusted Vegetation Index (MSAVI).

Landsat Surface Reflectance-derived Modified Soil Adjusted Vegetation Index (MSAVI) are derived from Landsat 4–5 Thematic Mapper (TM), Landsat 7 Enhanced Thematic Mapper Plus (ETM+), and Landsat 8 Operational Land Imager (OLI)/Thermal Infrared Sensor (TIRS) scenes that can be successfully processed to Landsat Level-2 Surface Reflectance products.  

MSAVI minimizes the effect of bare soil on the Soil Adjusted Vegetation Index (SAVI). MSAVI is calculated as a ratio between the R and NIR values with an inductive L function applied to maximize reduction of soil effects on the vegetation signal.

(2 * NIR + 1 – sqrt ((2 * NIR + 1)2 – 8 * (NIR - R))) / 2

In Landsat 4-7, MSAVI = (2 * Band 4 + 1 – sqrt ((2 * Band 4 + 1)2 – 8 * (Band 4 – Band 3))) / 2.

In Landsat 8, MSAVI = (2 * Band 5 + 1 – sqrt ((2 * Band 5 + 1)2 – 8 * (Band 5 – Band 4))) / 2.

MSAVI is delivered as a single band product, specified as shown in the table below.

 

Landsat Surface Reflectance-derived Modified Soil Adjusted Vegetation Index (MSAVI) Specifications
Attrribute Value
Long Name Modified Soil Adjusted Vegetation Index
Short Name LC8MSAVI, LE7MSAVI, LT5MSAVI, or LT4MSAVI
File Name *_sr_msavi.tif
Data Type Signed 16-bit Integer
Units Spectral Index (Band Ratio)
Valid Range -10,000 — 10,000
Fill Value -9999
Saturate Value 20,000
Scale Factor *0.0001

Data Access

Landsat Surface Reflectance-derived MSAVI are produced on-demand, using the USGS Earth Resources Observation and Science (EROS) Center Science Processing Architecture (ESPA) On Demand Interface (ESPA)

Visit the Landsat Surface Reflectance-Derived Spectral Indices web page for information on product contraints, citation, and reference information.