Kurzanleitung zum Upload cvon MOSES-Daten der Testkampagne 3.7.2018-13.7.2018

MOSES test campaign was performed between Börnchen and Dittersdorf from the 20.05.2019 to the 23.07.2019

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019

Vertically resolved measurements of aerosols and meteorological Parameters above the Campus of the Research Center Jülich obtained by drone filghts.

Manual measurements taken by Stevens Hydra Probes II, which instantly calculates soil moisture, conductivity, salinity, and temperature as well as supplying the raw voltages and complex permittivity for research applications

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019

Please enter an abstract to this data set

Cosmic ray neutron sensors (CRNS) allow to determine field-scale soil moisture content non-invasively due to the dependence of aboveground measured epithermal neutrons on the amount of hydrogen. Because other pools besides soil contain hydrogen (e.g. biomass), it is necessary to consider these for accurate soil moisture content measurements, especially when they are changing dynamically (e.g., arable crops, de- and reforestation). In this study, we compare four approaches for the correction of biomass effects on soil moisture content measurements with CRNS using experiments with three crops (sugar beet, winter wheat and maize) on similar soils: I) site-specific functions based on in-situ measured biomass, II) a generic approach, III) the thermal-to-epithermal neutron ratio (Nr) and IV) the thermal neutron intensity. Calibration of the CRNS during bare soil conditions resulted in root mean square errors (RMSE) of 0.097, 0.041 and 0.019 m3/m3 between estimated and reference soil moisture content of the cropped soils, respectively. Considering in-situ measured biomass for correction reduced the RMSE to 0.015, 0.018 and 0.009 m3/m3. When thermal neutron intensity was considered for correction, similarly accurate results were obtained. Corrections based on Nr and the generic approach were less accurate. We also explored the use of CRNS for biomass estimation. The use of Nr only provided accurate biomass estimates for sugar beet. However, significant site-specific relationships between biomass and thermal neutron intensity were obtained for all three crops. It was concluded that thermal neutron intensity can be used to correct soil moisture content estimates from CRNS and to estimate biomass.

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019 The aim was to measure atmospheric conditions before and after extreme hydrological events.