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The Lead Centre partecipated to the Meteorological Technology World Expo 2017 in Amsterdam

The Lead Centre partecipated to the Metoemet final meeting in Moncalieri (Tourin), presentig the results performed in the Research Excellence Grant (REG3) of the Meteomet2 project.

The Lead Centre will participate to the WMO TECO 2016 conference and the International Conference on Metrology for Meteorology and Climate with poster presentations on the more recent research developments and ongoing collaborations.

Wind tunnel experiments are currently under execution at the DICCA laboratories to provide information on rain gauges performance under turbulent winds and validation of CFD numerical analysis.

Oral presentation at the AMS annual meeting in New Orleans. Download the presentation.

Oral and poster presentations at the UrbanRain workshop (Pontresina). Download the short paper on the jointed CFD activity with EML.

The Lead Centre has recently signed a new research agreement with LSI LASTEM to study an improved rainfall intensity sensor compliant with UNI 11452:2012.

Arctic Circle 2015 Assembly

Presentation at the Arctic Metrology breakout session of the Arctic Circle 2015 Assembly.

New publications about the Lead Centre CFD studies available on AMS journals.

New field activities

Installation and set-up of aerodynamic gauges and a laser disdrometer at the Vigna di Valle field site.

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Highlights

See REAL-TIME rainfall intensity observations measured by a CAE tipping-bucket rain gauge (link to the UniGe meteo station).

Last precipitation date: 2018-10-11



Computational Fluid Dyanmics analysis of precipitation gauges wind induced errors
( see Publications )

Working Reference Group for RI measurements

The Lead Centre “B.Castelli” on Precipitation Intensity has recently established a novel reference system for rainfall intensity (RI) observations located in Vigna di Valle (Italy). This is composed by a set of working reference gauges (WRG) employing a selection of measuring principles tested during the previous WMO Laboratory and Field Intercomparisons of Rainfall Intensity Gauges (respectively 2004-2005 and 2007-2009) and the Solid Precipitation InterComparison Experiment (ongoing).



The pit-installed WRG at Vinga di Valle (Italy)

According to the CIMO Guide to Meteorological Instruments and Methods of Observations (WMO), the main feature of reference gauge design is to minimize or control the effect of wind on the catch, which is the most serious environmental factor for gauges at low intensity rates. This is achieved by installing the gauges into a pit according to EN 13798:2010.

Four gauges compose the LCPrIn working reference group: an OTT Pluvio2 weighing type gauge, a CAE tipping-bucket gauge, a Geonor T200B vibrating wires gauge and a drop counter developed by the Chilbolton Group of RAL Space (UK). Specific data processing protocols have been developed to combine the multiple readings and to provide the best possible estimation of reference RI in the field.

LC-PrIN - WMO-CIMO Lead Centre "B.Castelli" on Precipitation Intensity