CRNPy: An Open-Source Python Library for Cosmic-Ray Neutron Probe Data Processing

CRNPy is a Python library that facilitates the processing, analysis, and conversion of raw neutron counts obtained with stationary and roving cosmic-ray neutron probes (CRNP) into volumetric soil water content.The CRNPy library includes routines for atmospheric, biomass, and road corrections, along with one-dimensional and two-dimensional filtering.The library extends its utility by offering horizontal and vertical footprint determination, uncertainty estimation, depth extrapolation operators, and routines to assist users with field calibration.The design of the CRNPy library prioritizes reproducibility, ease of use, and compatibility across instruments, facilitating its adoption by instrument manufacturers, researchers, and end users aiming to integrate non-invasive soil moisture sensing in agricultural and hydrological applications.