NNear-Infrared (NIR).
VegetationMultispectralCitation Rank #176
The Normalized Difference Phenology Index (NDPI) is a vegetation spectral index intended for multispectral sensing. It was introduced in 2017; its source is cited as Cong Wang, Jin Chen, Jin Wu, Yanhong Tang, Peijun Shi, T. Andrew Black, & Kai Zhu (2017). A snow-free vegetation index for improved monitoring of vegetation spring green-up date in deciduous ecosystems. Remote Sensing of Environment, 196. https://doi.org/10.1016/j.rse.2017.04.031 .
Based on the latest citation data, this index is in the 44.09th percentile overall, ranking 176 out of 313 indices with citation data. Among the 51 indices published within two years of 2017, it ranks 16 (70.59th percentile). Within the vegetation application domain, it is in the 30.33th percentile and ranks 148 out of 211 indices with citation data. Among the 22 similarly aged vegetation indices, it ranks 11 (54.55th percentile).
(N - (alpha * R + (1.0 - alpha) * S1))/(N + (alpha * R + (1.0 - alpha) * S1))NNear-Infrared (NIR).
RRed.
S1Short-wave Infrared (SWIR) 1.
alphaWeighting coefficient.