R550Reflectance at 550 nm.
PRI550Physiological Reflectance Index at 550 nm
VegetationHyperspectralCitation Rank #34
Skip to content No radar polarizations are used in this index. No constants are used in this index. No contextual reductions are used in this index.
Summary
The Physiological Reflectance Index at 550 nm (PRI550) is a vegetation spectral index intended for hyperspectral sensing. It was introduced in 1992; its source is cited as J.A. Gamon, J. Peñuelas, & C.B. Field (1992). A narrow-waveband spectral index that tracks diurnal changes in photosynthetic efficiency. Remote Sensing of Environment, 41(1). https://doi.org/10.1016/0034-4257(92)90059-s .
Based on the latest citation data, this index is in the 89.46th percentile overall, ranking 34 out of 313 indices with citation data. Among the 22 indices published within two years of 1992, it ranks 3 (90.91th percentile). Within the vegetation application domain, it is in the 86.73th percentile and ranks 29 out of 211 indices with citation data. Among the 22 similarly aged vegetation indices, it ranks 3 (90.91th percentile).
Other indices from the same source
These catalogue entries share this index's scientific source and citation.
Formula
(R550 - R531)/(R550 + R531)Bands
R531Reflectance at 531 nm.