TU Delft optical disdrometer Parsivel² PAR005 at De Zweth

From Ruisdael Observatory Data Catalog
Dataset: TU Delft optical disdrometer Parsivel² PAR005 at De Zweth
title TU Delft Parsivel² disdrometer at De Zweth (PAR005)
description Description: In-situ measurements of raindrop size distributions, fall velocities, drop number concentrations and surface rain rates recorded by a Parsivel2 optical disdrometer named "PAR005_DeZweth" in De Zweth, The Netherlands. Situated approximately 7 km to the North West of Rotterdam, and 4 km South East of Delft campus, De Zweth is a small town along the Schie river, at the intersection of the historical areas of Delfland and Schieland. The disdrometer is placed on top of an air quality monitoring container belonging to TNO, at a height of approx. 4 meters.

This dataset is part of a larger collection of datasets published by the Dept. of Geoscience and Remote Sensing (GRS) at TU Delft within the framework of the Ruisdael Observatory (https://ruisdael-observatory.nl/).

The Parsivel2 optical disdrometer, manufactured by OTT Hydromet, is a widely used precipitation sensor which measures the size and velocity of raindrops as they pass through a horizontal laser beam. These measurements are aggregated over fixed intervals (typically 60 seconds) to produce a matrix of drop counts across 32 size and velocity classes, which is then used to approximate the raindrop size distribution (DSD) per unit volume of air. At the Ruisdael observatory, all Parsivel2 disdrometers are operated with a temporal sampling resolution of 60 seconds.

List of variables:

  • latitude, longitude and altitude of measurement site
  • time (in UTC), both in numeric and text format
  • rainfall intensity
  • weather codes (synop 4677, synop 4680, metar 4678, NWS)
  • meteorological optical range in precipitation
  • radar reflectivity
  • number of hydrometeors per minute at the surface, grouped according to 32 diameter and 32 velocity classes
  • number concentrations of raindrop sizes (for 32 diameter classes), per unit volume of air
  • total number of detected hydrometeors per minute
  • kinetic energy of hydrometeors
  • laser amplitude and laser status
  • internal temperature of sensor
Keywords DSD, Precipitation, Rain, Raindrop size distribution, Parsivel, Disdrometer
type See Dataset Types' descriptions in Dataset type taxon descriptions In-situ Observation
format netCDF
served by data service 4TU.ResearchData
landing page https://opendap.4tu.nl/thredds/catalog/data2/Ruisdael/continuous monitoring/optical disdrometer/ott parsivel2/PAR005 DeZweth/catalog.html
PID https://doi.org/10.4121/1d7b8042-e8f9-4768-9a13-c6bac5832f2a.v4
license CC BY 4.0
contact person Marc Schleiss
creator Marc Schleiss
organization TU Delft


Geographic and Temporal Information
location De Zweth
geographic coordinates 51.964374 N, 4.394592 E
elevation (meters) 33 m <br />
start date 2022-02-22
end date 2030-01-01
Loading map...


Campaigns that contribute to Dataset


Related Media to TU Delft optical disdrometer Parsivel² PAR005 at De Zweth

Note: "PAR005_DeZweth" is next to a vertically profiling micro-rain radar named "MRR006_DeZweth" and a Davis vantage pro weather station named "Davis002_DeZweth". This co-location can be used to cross-check data, apply quality control and/or assess measurement uncertainty due to sensor calibration, random sampling effects and environmental effects such as wind speed/direction which are known to substantially affect the accuracy of optical disdrometers.

Known issues: The temperature readings from the Parsivel2 do not represent actual air temperatures. These sensors are intended primarily to monitor internal conditions near the sensor heads and circuit board. Their accuracy tends to degrade over time, and in some cases the sensors may become faulty, producing unrealistically large temperature values.

Retrieved from "https://ruisdael-catalog.citg.tudelft.nl/index.php?title=TU_Delft_optical_disdrometer_Parsivel²_PAR005_at_De_Zweth&oldid=1814"