20.500.12556/RUL-184097 Enhancing soil moisture retrievals from cosmic ray neutron sensor in a peri-urban agricultural landscape Cosmic ray neutron sensors (CRNS) provide continuous, non-invasive monitoring of soil water content (SWC) at intermediate spatial scale, while their accuracy in heterogeneous landscapes remains less explored. In this study, a CRNS deployed in a peri-urban patchy agricultural landscape was calibrated using five gravimetric campaigns. SWC measured with CRNS was compared with the mean in situ SWC from a network of nine frequency domain (FD) sensors. Weighted mean volumetric SWC closely matched daily in situ measurements at 10 cm depth (mean difference = 1.7 vol% ± 1.5 vol%). Using the gravimetric sampling campaign with mean SWC near field capacity, combined with corrections for air pressure, incoming muons, water vapor and the short-term JUNG correction, resulted in the lowest RMSE for the measurement period, with a value of 3.81 vol%. Correlation between CRNS and in situ SWC was high and significant (ρ = 0.84, p < 0.001). Monthly differences between the in situ sensor and the calibrated CRNS SWC were generally below 5 vol%, with no significant differences observed during late summer periods. These results demonstrate that locally calibrated CRNS is suitable for drought monitoring at a heterogeneous rainfed landscape, while its use for other objectives, such as precision irrigation, requires further validation. cosmic ray neutron sensor calibration frequency domain drought onset detection vlaga v tleh senzorji monitoring talna vlaga suša namakanje true false true Angleški jezik Slovenski jezik Članek v reviji 2026-06-26 12:45:30 2026-06-26 12:45:38 2026-06-27 04:15:19 0000-00-00 00:00:00 2026 0 0 13 str. art.110564 Vol. 333 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 631 0378-3774 10.1016/j.agwat.2026.110564 282816003 1-s2.0-S0378377426004452-main.pdf 1-s2.0-S0378377426004452-main.pdf 1 1057EC36510D2ACC15B088E0AA270925 cc9e303a37a6f466192a2799e46dab493e94d02b94995b0877d14ba6ce5b1093 f95f8279-714d-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=236570 https://www.sciencedirect.com/science/article/pii/S0378377426004452 1 15eb1db3-714c-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=236569 Biotehniška fakulteta 0 0 0