I4S: mobile gamma spectrometry

Gamma spectra were proximally recorded as described in detail in the following publications:
1) stop-and-go data: Heggemann T, Welp G, Amelung W, Angst G, Franz SO, Koszinski S, Schmidt K, Pätzold S. 2017. Proximal gamma-ray spectrometry for site-independent in situ prediction of soil texture on ten heterogeneous fields in Germany using support vector machines. Soil Till. Res. 168, 99-109. DOI: http://dx.doi.org/10.1016/j.still.2016.10.008
2) on-the-go data: Pätzold S, Leenen M, Heggemann TW. Proximal Mobile Gamma Spectrometry as Tool for Precision Farming and Field Experimentation. Soil Syst. 2020, 4, 31; doi:10.3390/soilsystems4020031 (open acccess).

Stop-and-go data tables contain conventional texture analyses as well as the gamma counts [cps] of the four regions of interest (total counts, K-40, U-238, Th-232).
On-the-go data tables provide the four ROI's recorded at the different fields in their original spatial context.