data_cary: Diffuse soil reflectance via Cary equipment

In OxSR: Soil Iron Oxides via Diffuse Reflectance

Diffuse soil reflectance via Cary equipment

Description

A dataset containing diffuse reflectance measurements of soil samples from Brazil. The data were obtained using a Cary 5000 UV-Vis-NIR spectrophotometer, covering the spectral range from 2500 nm to 380 nm with a reading interval of 0.5 nm (Frosi et al., 2025).

Usage

data_cary

Format

A data frame with 5,417 rows and 52 columns:

a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24, a26

Wavelength values in nanometers for each sample (labeled "a"). Each column represents the wavelength for a specific sample.

x2, x4, x6, x8, x10, x12, x14, x16, x18, x20, x22, x24, x26, x28, x30, x32, x34, x36, x38, x40, x42, x44, x46, x48, x50

Reflectance percentage (%R) corresponding to each wavelength for the same sample. The "x" columns represent the reflectance values for the corresponding "a" sample columns.

References

Frosi, G., Inda, A., & Barrón, V. (2025). Diffuse reflectance of soils from Brazil Data set. Zenodo. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.5281/zenodo.14879041")}

OxSR documentation built on April 3, 2025, 10:36 p.m.