Landsat 8/9 Spectral Indices
USGS/NASA • 115 indices available
Spectral Band Visualization
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Showing 115 of 115 indices
ALT
Alteration Index
Formula
SWIR3 / SWIR5Geological index used to identify areas of hydrothermal alteration and mineral deposits. The ratio highlights areas where clay minerals and hydroxyl-bearing minerals are present, indicating potential alteration zones.
Applications
ARVI
Atmospherically Resistant Vegetation Index
Formula
(NIR - Red - γ(Red - Blue)) / (NIR + Red - γ(Red - Blue))Vegetation index that minimizes atmospheric effects by incorporating blue band correction. More resistant to atmospheric scattering than NDVI, particularly useful in areas with atmospheric haze or high aerosol content.
Applications
ARVI2
Atmospherically Resistant Vegetation Index 2
Formula
(NIR - (RED - γ * (RED - BLUE))) / (NIR + (RED - γ * (RED - BLUE)))ARVI2 is an enhanced version of the Atmospherically Resistant Vegetation Index designed to be resistant to atmospheric effects while being more sensitive to a wide range of chlorophyll concentrations. It builds upon the original ARVI concept by Kaufman and Tanré, providing improved vegetation monitoring capabilities under varying atmospheric conditions.
Applications
BAI
Burn Area Index
Formula
1 / ((0.1 - RED)^2 + (0.06 - NIR)^2)The Burn Area Index (BAI) was developed by Chuvieco et al. (2002) to identify burned areas using the red and NIR spectral bands. BAI emphasizes the charcoal signal in post-fire images by considering the spectral distance from each pixel to a reference spectral point where recently burned areas tend to converge.
Applications
BGI
Blue Green Pigment Index
Formula
450nm / 550nmBlue Green Pigment Index (BGI) is a simple ratio index that compares reflectance in the blue (450nm) and green (550nm) regions of the spectrum. It is used to assess plant pigment content, particularly useful for detecting changes in chlorophyll and carotenoid concentrations that affect blue and green light absorption.
Applications
BI
Brightness Index
Formula
sqrt((RED^2 + GREEN^2) / 2)The Brightness Index (BI) is a remote sensing index used to assess soil brightness, which is highly correlated with soil moisture, salt content, and organic matter. Developed by Mathieu and Escadafal, it provides valuable information about soil properties and fertility. As brightness increases, soil fertility typically decreases.
Applications
BI2
Second Brightness Index
Formula
sqrt((RED^2 + GREEN^2 + NIR^2) / 3)The Second Brightness Index (BI2) is an enhanced version of the Brightness Index that includes the near-infrared band in addition to red and green bands. Developed by Escadafal and Huete, it provides improved assessment of soil properties, particularly soil organic carbon content and moisture levels.
Applications
BNDVI
Blue Normalized Difference Vegetation Index
Formula
(NIR - Blue) / (NIR + Blue)A vegetation index that uses blue instead of red bands. BNDVI can be useful in situations where the red band is saturated or when assessing vegetation in water bodies where blue light penetrates better.
Applications
bNIRv
Blue Near-Infrared Reflectance of Vegetation
Formula
((N - B)/(N + B)) * NBlue Near-Infrared Reflectance of Vegetation - A spectral index for vegetation applications.
Applications
BWDRVI
Blue Wide Dynamic Range Vegetation Index
Formula
(0.1 * NIR - Blue) / (0.1 * NIR + Blue)A blue-based variant of WDRVI that uses blue instead of red bands. This index maintains sensitivity at high biomass levels while using the blue spectral region, which can be advantageous in certain applications.
Applications
CI
Coloration Index
Formula
(RED - GREEN) / (RED + GREEN)The Coloration Index (CI) was developed by Pouget et al. (1990) to characterize soil color properties in arid and semi-arid regions. Low CI values correlate with high concentrations of carbonates or sulfates, while higher values correlate with crusted soils and sands. The index helps monitor surface degradation and infiltrability variations.
Applications
CRI550
Carotenoid Reflectance Index 550
Formula
(1 / 510nm) - (1 / 550nm)The Carotenoid Reflectance Index 550 (CRI550) was developed by Gitelson et al. (2002) to assess carotenoid content in plant leaves. It uses reciprocal reflectance at 510nm (sensitive to carotenoids) and 550nm (to remove chlorophyll effects), providing a non-destructive method for carotenoid estimation.
Applications
DVI
Simple Ratio NIR/RED Difference Vegetation Index
Formula
NIR / RedSimple vegetation index calculating the ratio of near-infrared to red reflectance. One of the earliest vegetation indices, useful for biomass estimation and vegetation analysis.
Applications
EVI
Enhanced Vegetation Index
Formula
2.5 * ((NIR - Red) / (NIR + 6 * Red - 7.5 * Blue + 1))Improved vegetation index that reduces atmospheric and soil background effects. More sensitive to vegetation changes than NDVI.
Applications
Fe3+
Ferric Iron Index
Formula
Red / GreenGeological index for detecting ferric iron (Fe3+) concentrations in rocks and soils. Useful for lithologic mapping and identifying iron-rich mineral formations.
Applications
FOX
Ferric Oxides Index
Formula
NIR / RedGeological index for detecting ferric oxide concentrations in rocks and soils. Useful for identifying iron-rich minerals and oxide formations in geological mapping and mineral exploration.
Applications
FEI
Ferrous Iron Index
Formula
(SWIR5 / Red + NIR1 / Green)Geological index for detecting ferrous iron (Fe2+) concentrations in rocks and soils. Combines SWIR and visible-NIR ratios to identify iron-bearing minerals and geological formations.
Applications
FSI
Ferrous Silicates Index
Formula
SWIR5 / SWIR4Geological index for detecting ferrous silicate minerals in rocks and geological formations. Useful for identifying iron-bearing silicate minerals and mafic rock compositions.
Applications
GARI
Green Atmospherically Resistant Vegetation Index
Formula
(NIR - (Green - γ * (Blue - Red))) / (NIR + (Green - γ * (Blue - Red)))The Green Atmospherically Resistant Vegetation Index (GARI) is tailored on the concept of ARVI but uses the green band instead of red. It is expected to be as resistant to atmospheric effects as ARVI but more sensitive to a wide range of chlorophyll-a concentrations. GARI has a wider dynamic range than NDVI and is, on average, at least five times more sensitive to chlorophyll concentration.
Applications
GDVI
Green Difference Vegetation Index
Formula
NIR - GreenSimple vegetation index that calculates the difference between near-infrared and green spectral bands. Useful for assessing vegetation health and density with straightforward band arithmetic.
Applications
GEMI
Global Environment Monitoring Index
Formula
n = (2*(NIR²-Red²) + 1.5*NIR + 0.5*Red)/(NIR+Red+0.5); GEMI = (n*(1-0.25*n) - Red - 0.125)/(1-Red)Non-linear vegetation index designed for global vegetation monitoring from satellites. Less sensitive to soil background variations compared to NDVI and provides enhanced discrimination of vegetation states.
Applications
GEMI
Global Environmental Monitoring Index
Formula
eta * (1 - 0.25 * eta) - ((RED - 0.125) / (1 - RED)) where eta = (2 * (NIR^2 - RED^2) + 1.5 * NIR + 0.5 * RED) / (NIR + RED + 0.5)The Global Environmental Monitoring Index (GEMI) is a non-linear vegetation index developed by Pinty and Verstraete (1992) specifically designed to reduce atmospheric effects without requiring detailed atmospheric correction. Unlike NDVI, GEMI maintains information about vegetation cover while being more resistant to atmospheric perturbations.
Applications
GNDVI
Green Normalized Difference Vegetation Index
Formula
(NIR - Green) / (NIR + Green)Vegetation index that uses green wavelengths instead of red to assess vegetation characteristics. More sensitive to chlorophyll content and can be useful for detecting stress in dense vegetation canopies.
Applications
GOSAVI
Green Optimized Soil Adjusted Vegetation Index
Formula
(NIR - Green) / (NIR + Green + 0.16)Soil-adjusted vegetation index that uses green wavelengths and incorporates a soil adjustment factor to minimize soil background influences. Optimized for vegetation monitoring in areas with varying soil conditions.
Applications
GOS
Gossan Index
Formula
SWIR4 / RedGeological index for detecting gossan formations - weathered, oxidized iron-bearing rocks that form at the surface above sulfide mineral deposits. Essential for mineral exploration and identifying potential ore deposits.
Applications
GRVI
Green Ratio Vegetation Index
Formula
NIR / GreenSimple vegetation index that calculates the ratio of near-infrared to green band reflectance. Useful for vegetation fraction estimation and assessing plant health using green wavelengths.
Applications
GSAVI
Green Soil Adjusted Vegetation Index
Formula
(NIR - Green) / (NIR + Green + L * (1 + L))Soil-adjusted vegetation index using green wavelengths to minimize soil background interference. Incorporates a soil adjustment factor (L=0.5) to improve vegetation signal extraction.
Applications
GVI
Tasselled Cap - vegetation
Formula
-0.2848 * Blue - 0.2435 * Green - 0.5436 * Red + 0.7243 * NIR + 0.0840 * SWIR1 - 0.1800 * SWIR2The vegetation component of the Tasselled Cap transformation, which measures the amount of green vegetation present. High values indicate dense, healthy vegetation.
Applications
H
Hue Index
Formula
arctan((2 * Red - Green - Blue) / (30.5 * (Green - Blue)))Color index representing the dominant wavelength in visible spectrum. Used for color analysis and classification of materials based on their spectral hue characteristics.
Applications
I
Intensity Index
Formula
(1/30.5) * (Red + Green + Blue)Color brightness measure representing the total reflectance across visible bands. Used for overall brightness analysis and intensity-based classification.
Applications
IPVI
Infrared Percentage Vegetation Index
Formula
NIR / (NIR + Red) * 2 * (NDVI + 1)Enhanced vegetation index that combines simple ratio and NDVI approaches. Provides improved sensitivity to vegetation changes and reduced soil background effects.
Applications
Laterite
Laterite Index
Formula
SWIR1 / SWIR0Geological index for detecting laterite formations and iron-rich weathering zones. Particularly effective for identifying lateritic soils and weathered surfaces.
Applications
LSWI
Land Surface Water Index
Formula
(NIR - SWIR) / (NIR + SWIR)The Land Surface Water Index (LSWI) was developed by Xiao et al. to monitor vegetation and soil water content. LSWI is sensitive to liquid water in vegetation due to strong SWIR absorption by water. It is widely used for drought monitoring, water stress detection, and integration into vegetation productivity models.
Applications
MNDWI
Modified Normalized Difference Water Index
Formula
(Green - SWIR) / (Green + SWIR)The Modified Normalized Difference Water Index (MNDWI) was developed by Xu (2006) as an improvement over the original NDWI. By substituting the NIR band with SWIR, MNDWI can enhance open water features while efficiently suppressing noise from built-up areas, vegetation, and soil. This makes it particularly suitable for water detection in urban environments.
Applications
MSAVI
Modified Soil Adjusted Vegetation Index
Formula
0.5 * (2 * NIR + 1 - sqrt((2 * NIR + 1)^2 - 8 * (NIR - Red)))Self-adjusting vegetation index that minimizes soil background influence without requiring soil line parameters. Automatically adjusts for varying soil conditions.
Applications
NBR
Normalized Burn Ratio
Formula
(NIR - SWIR) / (NIR + SWIR)Burn severity index for detecting and monitoring fire damage in vegetation. Higher values indicate healthy vegetation, lower values indicate burned areas.
Applications
NDBI
Normalized Difference Built-up Index
Formula
(SWIR - NIR) / (SWIR + NIR)Highlights built-up areas and urban development. Higher values indicate more built-up surfaces.
Applications
NDII
Normalized Difference Infrared Index
Formula
(850nm - 1650nm) / (850nm + 1650nm)Vegetation water content index sensitive to changes in vegetation moisture and canopy water stress. Useful for drought monitoring and irrigation management.
Applications
NDMI
Normalized Difference Moisture Index
Formula
(NIR - SWIR1) / (NIR + SWIR1)The Normalized Difference Moisture Index (NDMI) was utilized by Wilson and Sader (2002) to detect moisture levels in vegetation. NDMI is sensitive to vegetation water content using NIR and SWIR bands, making it useful for drought monitoring, water stress detection, and forest disturbance mapping.
Applications
NDSI
Normalized Difference Salinity Index
Formula
(SWIR1 - SWIR2) / (SWIR1 + SWIR2)Soil salinity detection index using shortwave infrared bands. Effective for identifying salt-affected soils and monitoring soil degradation in arid regions.
Applications
NDVI
Normalized Difference Vegetation Index
Formula
(NIR - Red) / (NIR + Red)Most commonly used vegetation index to assess plant health and density. Values range from -1 to 1, with higher values indicating healthier vegetation.
Applications
NDVI
Normalized Difference Vegetation Index (Classic)
Formula
(NIR - Red) / (NIR + Red)The most widely used vegetation index for assessing vegetation health, density, and photosynthetic activity. Classic formulation using standard red and near-infrared bands.
Applications
NDVIc
Normalized Difference Vegetation Index C
Formula
(NIR - RED) / (NIR + RED) * (1 - (SWIR - SWIRmin) / (SWIRmax - SWIRmin))NDVIc is a corrected version of NDVI that incorporates SWIR bands to account for atmospheric and canopy background effects. The correction factor using SWIR bands helps improve the accuracy of vegetation assessments, particularly in areas with varying atmospheric conditions or soil backgrounds.
Applications
NDWI
Normalized Difference Water Index
Formula
(Green - NIR) / (Green + NIR)Used to detect water bodies and monitor water content in vegetation. Positive values typically indicate water presence.
Applications
NGRDI
Normalized Green Red Difference Index
Formula
(G - R) / (G + R)Normalized Green Red Difference Index for vegetation applications
Applications
NIRv
Near-Infrared Reflectance of Vegetation
Formula
((N - R) / (N + R)) * NNear-Infrared Reflectance of Vegetation for vegetation applications
Applications
NIRvH2
Hyperspectral Near-Infrared Reflectance of Vegetation
Formula
N - R - k * (lambdaN - lambdaR)Hyperspectral Near-Infrared Reflectance of Vegetation for vegetation applications
Applications
NIRvP
Near-Infrared Reflectance of Vegetation and Incoming PAR
Formula
((N - R) / (N + R)) * N * PARNear-Infrared Reflectance of Vegetation and Incoming PAR for vegetation applications
Applications
NLI
Nonlinear vegetation index
Formula
(NIR² - Red) / (NIR² + Red)A vegetation index that uses a nonlinear relationship between NIR and red bands to reduce the saturation effect at high biomass levels. The squared NIR term helps maintain sensitivity to vegetation changes in dense canopies.
Applications
NMDI
Normalized Multi-band Drought Index
Formula
(N - (S1 - S2))/(N + (S1 - S2))Normalized Multi-band Drought Index for vegetation applications
Applications
Norm G
Normalized Green
Formula
Green / (NIR + Red + Green)Normalized green reflectance component for vegetation analysis. Provides relative contribution of green band reflectance in visible-NIR spectrum.
Applications
Norm NIR
Normalized Near-Infrared
Formula
NIR / (NIR + Red + Green)Normalized near-infrared reflectance component for vegetation analysis. Highlights vegetation structural properties and biomass distribution.
Applications
Norm R
Normalized Red
Formula
Red / (NIR + Red + Green)Normalized red reflectance component for vegetation analysis. Useful for analyzing chlorophyll absorption and vegetation stress indicators.
Applications
NormG
Normalized Green
Formula
G/(N + G + R)Normalized Green for vegetation applications
Applications
NormNIR
Normalized NIR
Formula
N/(N + G + R)Normalized NIR for vegetation applications
Applications
NormR
Normalized Red
Formula
R/(N + G + R)Normalized Red for vegetation applications
Applications
NRFIg
Normalized Rapeseed Flowering Index Green
Formula
(G - S2) / (G + S2)Normalized Rapeseed Flowering Index Green for vegetation applications
Applications
NRFIr
Normalized Rapeseed Flowering Index Red
Formula
(R - S2) / (R + S2)Normalized Rapeseed Flowering Index Red for vegetation applications
Applications
NSDS
Normalized Shortwave Infrared Difference Soil-Moisture
Formula
(S1 - S2)/(S1 + S2)Normalized Shortwave Infrared Difference Soil-Moisture for soil applications
Applications
NSDSI1
Normalized Shortwave-Infrared Difference Bare Soil Moisture Index 1
Formula
(S1-S2)/S1Normalized Shortwave-Infrared Difference Bare Soil Moisture Index 1 for soil applications
Applications
NSDSI2
Normalized Shortwave-Infrared Difference Bare Soil Moisture Index 2
Formula
(S1-S2)/S2Normalized Shortwave-Infrared Difference Bare Soil Moisture Index 2 for soil applications
Applications
NSDSI3
Normalized Shortwave-Infrared Difference Bare Soil Moisture Index 3
Formula
(S1-S2)/(S1+S2)Normalized Shortwave-Infrared Difference Bare Soil Moisture Index 3 for soil applications
Applications
NSTv1
NIR-SWIR-Temperature Version 1
Formula
((N-S2)/(N+S2))*TNIR-SWIR-Temperature Version 1 for burn applications
Applications
NSTv2
NIR-SWIR-Temperature Version 2
Formula
(N-(S2+T))/(N+(S2+T))NIR-SWIR-Temperature Version 2 for burn applications
Applications
NWI
New Water Index
Formula
(B - (N + S1 + S2))/(B + (N + S1 + S2))New Water Index for water applications
Applications
OCVI
Optimized Chlorophyll Vegetation Index
Formula
(N / G) * (R / G) ** cexpOptimized Chlorophyll Vegetation Index for vegetation applications
Applications
OSI
Oil Spill Index
Formula
(G + R)/BOil Spill Index for water applications
Applications
PI
Plastic Index
Formula
N/(N + R)Plastic Index for water applications
Applications
PISI
Perpendicular Impervious Surface Index
Formula
0.8192 * B - 0.5735 * N + 0.0750Perpendicular Impervious Surface Index for urban applications
Applications
PNDVI
Pan NDVI
Formula
(NIR - (GREEN + RED + BLUE)) / (NIR + (GREEN + RED + BLUE))Pan NDVI is designed for vegetation analysis, calculating vegetation health and density by comparing near-infrared and visible light reflectance. It provides a normalized method to assess vegetation health across multiple spectral bands.
Applications
RCC
Red Chromatic Coordinate
Formula
R / (R + G + B)Red Chromatic Coordinate for vegetation applications
Applications
RGBVI
Red Green Blue Vegetation Index
Formula
(G ** 2.0 - B * R)/(G ** 2.0 + B * R)Red Green Blue Vegetation Index for vegetation applications
Applications
RGRI
Red-Green Ratio Index
Formula
R/GRed-Green Ratio Index for vegetation applications
Applications
RI4XS
SPOT HRV XS-based Redness Index 4
Formula
(R**2.0)/(G**4.0)SPOT HRV XS-based Redness Index 4 for soil applications
Applications
RNDVI
Reversed Normalized Difference Vegetation Index
Formula
(R - N)/(R + N)Reversed Normalized Difference Vegetation Index for water applications
Applications
S3
S3 Snow Index
Formula
(N * (R - S1)) / ((N + R) * (N + S1))S3 Snow Index for snow applications
Applications
SARVI
Soil Adjusted and Atmospherically Resistant Vegetation Index
Formula
(1 + L)*(N - (R - (R - B))) / (N + (R - (R - B)) + L)Soil Adjusted and Atmospherically Resistant Vegetation Index for vegetation applications
Applications
S
Saturation
Formula
(max(R,G,B) - min(R,G,B)) / max(R,G,B)A spectral index that calculates the color saturation by comparing the maximum and minimum RGB values. Used for analyzing vegetation characteristics and spectral indices for degradation of natural environments.
Applications
SAVI
Soil Adjusted Vegetation Index
Formula
((NIR - Red) / (NIR + Red + L)) * (1 + L)Vegetation index that minimizes soil brightness influences. The L factor is typically set to 0.5 for moderate vegetation cover.
Applications
SAVI2
Soil-Adjusted Vegetation Index 2
Formula
N / (R + (slb / sla))Soil-Adjusted Vegetation Index 2 for vegetation applications
Applications
SAVIT
Soil-Adjusted Vegetation Index Thermal
Formula
(1.0 + L) * (N - (R * T / 10000.0)) / (N + (R * T / 10000.0) + L)Soil-Adjusted Vegetation Index Thermal for burn applications
Applications
SBI
Tasselled Cap - brightness
Formula
0.3037 * Blue + 0.2793 * Green + 0.4743 * Red + 0.5585 * NIR + 0.5082 * SWIR1 + 0.1863 * SWIR2A spectral index for analyzing vegetation characteristics across different spectral bands. The Tasselled Cap transformation creates a new coordinate system that aligns with physical scene characteristics.
Applications
SEVI
Shadow-Eliminated Vegetation Index
Formula
(N/R) + fdelta * (1.0/R)Shadow-Eliminated Vegetation Index for vegetation applications
Applications
SI
Shadow Index
Formula
((1.0 - B) * (1.0 - G) * (1.0 - R)) ** (1/3)Shadow Index for vegetation applications
Applications
SIPI
Structure Insensitive Pigment Index
Formula
(N - A) / (N - R)Structure Insensitive Pigment Index for vegetation applications
Applications
SLAVI
Specific Leaf Area Vegetation Index
Formula
N/(R + S2)Specific Leaf Area Vegetation Index for vegetation applications
Applications
sNIRvLSWI
SWIR-enhanced Near-Infrared Reflectance of Vegetation for LSWI
Formula
((N - S2)/(N + S2)) * NSWIR-enhanced Near-Infrared Reflectance of Vegetation for LSWI - A spectral index for vegetation applications.
Applications
sNIRvNDPI
SWIR-enhanced Near-Infrared Reflectance of Vegetation for NDPI
Formula
(N - (alpha * R + (1.0 - alpha) * S2))/(N + (alpha * R + (1.0 - alpha) * S2)) * NSWIR-enhanced Near-Infrared Reflectance of Vegetation for NDPI - A spectral index for vegetation applications.
Applications
sNIRvNDVILSWIP
SWIR-enhanced Near-Infrared Reflectance of Vegetation for the NDVI-LSWI Product
Formula
((N - R)/(N + R)) * ((N - S2)/(N + S2)) * NSWIR-enhanced Near-Infrared Reflectance of Vegetation for the NDVI-LSWI Product - A spectral index for vegetation applications.
Applications
sNIRvNDVILSWIS
SWIR-enhanced Near-Infrared Reflectance of Vegetation for the NDVI-LSWI Sum
Formula
(((N - R)/(N + R)) + ((N - S2)/(N + S2))) * NSWIR-enhanced Near-Infrared Reflectance of Vegetation for the NDVI-LSWI Sum - A spectral index for vegetation applications.
Applications
sNIRvSWIR
SWIR-enhanced Near-Infrared Reflectance of Vegetation
Formula
((N - R - S2 ** 2.0)/(N + R + S2 ** 2.0)) * NSWIR-enhanced Near-Infrared Reflectance of Vegetation - A spectral index for vegetation applications.
Applications
SR
Simple Ratio
Formula
N/RSimple Ratio for vegetation applications
Applications
SR2
Simple Ratio (800 and 550 nm)
Formula
N/GSimple Ratio (800 and 550 nm) for vegetation applications
Applications
SWI
Snow Water Index
Formula
(G * (N - S1)) / ((G + N) * (N + S1))Snow Water Index for snow applications
Applications
SWM
Sentinel Water Mask
Formula
(B + G)/(N + S1)Sentinel Water Mask for water applications
Applications
TDVI
Transformed Difference Vegetation Index
Formula
1.5 * ((N - R)/((N ** 2.0 + R + 0.5) ** 0.5))Transformed Difference Vegetation Index - A spectral index for vegetation applications.
Applications
TGI
Triangular Greenness Index
Formula
- 0.5 * (190 * (R - G) - 120 * (R - B))Triangular Greenness Index - A spectral index for vegetation applications.
Applications
TriVI
Triangular Vegetation Index
Formula
0.5 * (120 * (N - G) - 200 * (R - G))Triangular Vegetation Index - A spectral index for vegetation applications.
Applications
TSAVI
Transformed Soil Adjusted Vegetation Index
Formula
(a * (NIR - a * Red - b)) / (Red + a * NIR - a * b + X * (1 + a^2))A vegetation index designed to minimize soil brightness effects on vegetation measurements. TSAVI requires knowledge of the soil line parameters (slope and intercept) for optimal performance.
Applications
TVI
Transformed Vegetation Index
Formula
sqrt((NIR - Red) / (NIR + Red) + 0.5)A simple transformation of NDVI that shifts values to avoid negative numbers. TVI ranges from 0 to 1, making it easier to interpret and use in some applications.
Applications
UI
Urban Index
Formula
(S2 - N)/(S2 + N)Urban Index - A spectral index for urban applications.
Applications
VARI
Visible Atmospherically Resistant Index
Formula
(G - R) / (G + R - B)Visible Atmospherically Resistant Index - A spectral index for vegetation applications.
Applications
VARI
Visible Atmospherically Resistant Index
Formula
(Green - Red) / (Green + Red - Blue)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. It evaluates the 'greenness' in plants using only visible light bands, making it ideal for standard RGB cameras without requiring specialized multispectral sensors.
Applications
VgNIRBI
Visible Green-Based Built-Up Index
Formula
(G - N)/(G + N)Visible Green-Based Built-Up Index - A spectral index for urban applications.
Applications
VI6T
VI6T Index
Formula
(N - T/10000.0)/(N + T/10000.0)VI6T Index - A spectral index for burn applications.
Applications
VIBI
Vegetation Index Built-up Index
Formula
((N-R)/(N+R))/(((N-R)/(N+R)) + ((S1-N)/(S1+N)))Vegetation Index Built-up Index - A spectral index for urban applications.
Applications
VIG
Vegetation Index Green
Formula
(G - R) / (G + R)Vegetation Index Green - A spectral index for vegetation applications.
Applications
VrNIRBI
Visible Red-Based Built-Up Index
Formula
(R - N)/(R + N)Visible Red-Based Built-Up Index - A spectral index for urban applications.
Applications
WDRVI
Wide Dynamic Range Vegetation Index
Formula
(0.1 * NIR - Red) / (0.1 * NIR + Red)A vegetation index designed to improve sensitivity for moderate to high biomass conditions where traditional NDVI saturates. The weighting factor (0.1) enhances the dynamic range of the vegetation signal.
Applications
WDVI
Weighted Difference Vegetation Index
Formula
NIR - a * RedA vegetation index that accounts for soil background by using a weighted difference between NIR and red bands. The weight parameter 'a' is the slope of the soil line, typically derived from bare soil measurements.
Applications
WET
Tasselled Cap - wetness
Formula
0.1509 * Blue + 0.1973 * Green + 0.3279 * Red + 0.3406 * NIR - 0.7112 * SWIR1 - 0.4572 * SWIR2The wetness component of the Tasselled Cap transformation, which relates to soil and canopy moisture. Positive values indicate wet conditions while negative values indicate dry conditions.
Applications
WI1
Water Index 1
Formula
(G - S2) / (G + S2)Water Index 1 - A spectral index for water applications.
Applications
WI2
Water Index 2
Formula
(B - S2) / (B + S2)Water Index 2 - A spectral index for water applications.
Applications
WI2015
Water Index 2015
Formula
1.7204 + 171 * G + 3 * R - 70 * N - 45 * S1 - 71 * S2Water Index 2015 - A spectral index for water applications.
Applications
WRI
Water Ratio Index
Formula
(G + R)/(N + S1)Water Ratio Index - A spectral index for water applications.
Applications