Soil moisture network in COPS C Hauck N

Soil moisture network in COPS C. Hauck, N. Kalthoff, L. Krauß Institute for Meteorology and Climate Research, University of Karlsruhe 5 th COPS workshop, 26 – 28 march 2007 26 march 2007 L. Krauß

Soil Moisture Network COPS locations Supersites Sites of energy balance/ turbulence/ sodar measurement Karlsruhe Locations of Soil Moisture Measurements FZ Karlsruhe (status: installed) FZ Karlsruhe (status: not installed yet) Univ. Bayreuth Univ. Freiburg 26 march 2007 L. Krauß

Soil Moisture Stations Soil Moisture Network FZ Karlsruhe 40 stations each with 3 sensors University of Bayreuth University of Freiburg 4 stations 2 stations the sensors probably will work from the first of may and will run at least for 1 year ► additional stations (for COPS): at supersite R, H, M (FZ Karlsruhe) at supersite S (Univ. Bonn) at supersite V (French station) in the Rhinevalley at Linkenheim (FZ Karlsruhe) 26 march 2007 L. Krauß

Installation Details 3 sensors at each station Installation depths 5 cm 20 cm 50 cm Soil moisture sensors: SISOMOP (Simplified Soil Moisture Probe) 26 march 2007 L. Krauß

Special Observation Sites/ Measurements Optional: detailed 2 D-variability of soil moisture with geophysical instruments (Geoelectrics/ Ground penetrating radar) Electrical Resistivity Tomography Rings et al. submitted 3 planned Special Observation Sites (spatial soil moisture variability) – Linkenheim (Rhine valley, close to IMK-FZK) – Hornisgrinde (supersite H) – AMF site (supersite M) 26 march 2007 L. Krauß

Logistic/ Questions ► location of all soil moisture stations (run by FZ Karlsruhe) are near existing precipitation stations (DWD, LUBW) ► integration of all soil moisture measurements during COPS into one network coordinated by Karlsruhe with French contributions ► there is at least 1 soil moisture measurement on each supersite ► Data will be send to the Archive in Hamburg every 4 weeks Open Questions: - temporal resolution loggers depends on the storage capability of the data will be less than 1 hour (presumably 30 minutes) - temporal resolution of detailed 2 D-sections is not clear yet 26 march 2007 L. Krauß