Vegetation indices

Equations

References

Fluorescence Ratio Index (FRI)

$\text{FRI}=\frac{F_{685}}{F_{735}}$

Méthy et al. (1991) [22]

Fluorescence Reflectance Index 1 (FRI₁)

${\text{FRI}}_1=\frac{R_{690}}{R_{600}}$

Dobrowski et al. (2005) [23]

Sun et al. (2008) [24]

Fluorescence Reflectance Index 2 (FRI₂)

${\text{FRI}}_2=\frac{R_{740}}{R_{800}}$

Dobrowski et al. (2005) [23]

Sun et al. (2008) [24]

Photochemical Reflectance Index (PRI)

$\text{PRI}=\frac{R_{531}-R_{570}}{R_{531}+R_{570}}$

Gamon et al. (1992) [25]

Normalized Difference vegetation index (NDVI)

$\text{NDVI}=\frac{R_{800}-R_{670}}{R_{800}+R_{670}}$

Rouse et al. (1974) [26]

Structure Intensive Pigment Index (SIPI)

$\text{SIPI}=\frac{R_{800}-R_{445}}{R_{800}-R_{680}}$

Penuelas et al. (1995) [27]

Simple Ratio Pigment Index (SRPI)

$\text{SRPI}=\frac{R_{430}}{R_{680}}$

Penuelas et al. (1994) [28]

Red Edge Inflation Point (REIP)

$\text{REIP}=700+40\times \frac{0.5\left(R_{670}+R_{780}\right)-R_{700}}{R_{740}-R_{700}}$

Guyot et al. (1988) [29]

Transformed Chlorophyll Absorption in Reflectance Index (TCARI)

$\text{TCARI}=\frac{3\times \left[\left(R_{700}-R_{670}\right)-0.2\times \left(R_{700}-R_{550}\right)\times \left(\frac{R_{700}}{R_{670}}\right)\right]}{\left(1+0.16\right)\times \frac{R_{800}-R_{670}}{R_{800+R_{670}+0.16}}}$

Haboudane et al. (2002) [30]