Parsivel is a modern laser-based optical system for the complete and reliable measurement of all kinds of precipitation. The precipitation particles are differentiated and classified as drizzle, rain, sleet, hail, snow or mixed precipitation. For the precipitation measurements a special sensor head was developed. It measures precipitation optically one meter above the earth's surface (other heights are available on request). The data determined thereby are processed and stored by a fast digital signal processor. The primarily determined data are the size and the velocity of each individual precipitation particle, from which the size spectrum, the amount of precipitation, the equivalent radar reflectivity, the visibility and the kinetic precipitation energy as well as the kind of precipitation are derived. The results can be transferred to a data logger or to a PC via serial interface.
Features
World-wide use and operability as Precipitation and Present Weather Sensor.
Exact and detailed recording and analysis of all kinds of precipitation, quantity and distribution.
Low purchasing and operating costs for a maintenance-free, autonomous system or as part of an unmanned weather station.
Simultaneous measurement of all kinds of precipitation at all wind conditions - from the gust to the hurricane.
Laser-optical Disdrometer as alternative to rain gauges using the tipping bucket principle.
Remote downloading of data and programming.
Example of use
Disdrometer for the classification of the drop spectrum as scientific instrument for the fields of meteorology, environmental monitoring and forest sciences.
Optical precipitation measuring instrument for rain quantity and intensity as alternative to conventional collecting rain gauges.
Present Weather sensor for meteorological weather stations and systems for weather services and airports.
Weather messages SYNOP, METAR, SPEZI and NWS: 21 precipitation types of the main precipitation such as drizzle, rain, sleet, snow and hail.
Evaluation software ASDO for on-line visualisation, data storage, spectrum evaluation, tabular and graphical display of time series.
Universal RS485 interface configurable by the user, telegram sequence.
SDI-12 interface for universal meteorological and hydrologic data loggers.
Parallel operation for data logger/SDI-12 and station-PC/RS485.
Digital output for precipitation pulses and kinds of precipitation liquid/solid.
