NNear-Infrared (NIR).
S3S3 Snow Index
SnowMultispectralCitation Rank #267
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 S3 Snow Index (S3) is a snow spectral index intended for multispectral sensing. It was introduced in 1999; its source is cited as Atsushi SAITO, & Takeshi YAMAZAKI (1999). Characteristics of Spectral Reflectance for Vegetation Ground Surfaces with Snow-cover; Vegetation Indices and Snow Indices. Journal of Japan Society of Hydrology and Water Resources, 12(1). https://doi.org/10.3178/jjshwr.12.28 .
Based on the latest citation data, this index is in the 15.34th percentile overall, ranking 267 out of 313 indices with citation data. Among the 43 indices published within two years of 1999, it ranks 42 (4.65th percentile). Within the snow application domain, it is in the 30th percentile and ranks 8 out of 10 indices with citation data. Among the 3 similarly aged snow indices, it ranks 3 (33.33th percentile).
Formula
(N * (R - S1)) / ((N + R) * (N + S1))Bands
RRed.
S1Short-wave Infrared (SWIR) 1.