At YP, which is in the downwind area, observation data from the micro rain radar (MRR; Metek) and a PARSIVEL disdrometer
(PARSIVEL; OTT Hydromet) were used.
In addition, an optical disdrometer
, OTT Parsivel, is used to measure the rain rates which operates simultaneously with the monitoring system of satellite beacon signal whose specification is also given in Table 2.
Majority of the established DSD functions used disdrometer
Generally, the measured rain drop size distribution N([D.sub.j]) from the disdrometer
data is the number of raindrops per cubic meter per millimetre diameter ([mm.sup.-3][m.sup.-1]) as adopted by [24,25] is given as (1):
Tropical rainfall associated with convective and stratiform clouds: Intercomparison of disdrometer
and profiler measurements.
In addition to standard rain gauges and wind instruments, the mobile laboratory carries a vertically pointing Doppler radar and a video disdrometer
, designed and built by Joanneum Research in Austria, and one of only three of its kind in the United States.
Students can work with its two-dimensional sonic anemometer and an acoustic rain gauge with reporting modes, including tipping bucket accumulation and disdrometer
Marzano, "Evaluation of a new polarimetric algorithm for rain-path attenuation correction of X-band radar observations against disdrometer
," IEEE Transactions on Geoscience and Remote Sensing, vol.
Owolabi, "Rainfall parameters from disdrometer
dropsize measurements at a tropical station," Annales des Telecommunications, vol.
Joss and Waldvogel may be credited as having developed the first automatic disdrometer
, using a microphonic sensor which transformed the vertical momentum of the impact of a drop into an electrical signal [32, 33].
The Joss-Waldvogel disdrometer
set up at the centre is connected to a terminal computer which records 1-minute integration time data.
2016), an OTT Particle Size Velocity (PARSIVEL) disdrometer
(Loffler-Mang and Joss 2000; Friedrich et al.