From 2005-01-11 12:20 to 2005-01-23 20:40 no recordings. Discharge in this period is determined by linear regression with upstream stations Q2 and Q3 Parent item: Maisbich (Luxemburg), measured data from discharge meter Q1, 2003-12 to 2008-05 Measuring instrument: Maisbich basin: V-notch discharge meter Q1 Type: Pressure Sensor Keller DCX-4.0, SN 1454 This instrument is based on differential pressure measurement of two absolute sensors. The sensors measure pressure and temperature. Height of V-notch above sensor: hV=0.145m. The discharge is calculated with the rating curve Q=C*(h-hV)^2.5 where C is a calibration constant and h results from the pressure difference (Willem Luxemburg, Martijn Westhoff).