Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Extreme rainfall events: evaluation with different instruments and measurement reliability |
| Abstract | With regard to extreme events, it is well documented that an intensity of about 1 mm/min already represents an extreme intensity. Under alpine conditions, a precipitation event with an intensity of 3 mm/min has occurred. Therefore, the rain gauges in this region have to be able to measure in this and even in higher intensity ranges. This study deals with basic automated tippingbucket rain (TBR) gauge and Bulk precipitation samplers, which are able to hold more than 95 % of the cumulative rainfall, that are verified within the space of the week without losses during the extreme events and with minimal evaporation loss. Bulk samplers collected more rainfall than TBR gauges in 110 of 221 extreme events analysed over the past 10 years. In 17 extreme events, an underestimation greater than 10 % was evaluated. The objective was to single out the counting errors associated with TBR gauge, during extreme events, so as to help the understanding of the measured differences between instruments in the field. We want to determine whether the automated precipitation gauge can provide a reliable and precise measurement of precipitation with particular interest regarding heavy and extreme events. |
| Source | Environmental earth sciences (Print) 72, pp. 4607–4616 |
| Keywords | Extreme eventsTipping-bucket rain gaugeBulk samplerUnderestimationReliable |
| Journal | Environmental earth sciences (Print) |
| Editor | Springer, Berlin, Germania |
| Year | 2014 |
| Type | Articolo in rivista |
| Authors | Helmi Saidi; Marzia Ciampittiello; Claudia Dresti; Laura Turconi |
| Text | 328708 2014 Extreme events Tipping bucket rain gauge Bulk sampler Underestimation Reliable Extreme rainfall events evaluation with different instruments and measurement reliability Helmi Saidi; Marzia Ciampittiello; Claudia Dresti; Laura Turconi CNR ISE VB, CNR IRPI TO With regard to extreme events, it is well documented that an intensity of about 1 mm/min already represents an extreme intensity. Under alpine conditions, a precipitation event with an intensity of 3 mm/min has occurred. Therefore, the rain gauges in this region have to be able to measure in this and even in higher intensity ranges. This study deals with basic automated tippingbucket rain TBR gauge and Bulk precipitation samplers, which are able to hold more than 95 % of the cumulative rainfall, that are verified within the space of the week without losses during the extreme events and with minimal evaporation loss. Bulk samplers collected more rainfall than TBR gauges in 110 of 221 extreme events analysed over the past 10 years. In 17 extreme events, an underestimation greater than 10 % was evaluated. The objective was to single out the counting errors associated with TBR gauge, during extreme events, so as to help the understanding of the measured differences between instruments in the field. We want to determine whether the automated precipitation gauge can provide a reliable and precise measurement of precipitation with particular interest regarding heavy and extreme events. 72 Published version Articolo 2014_Environ_Earth_Sci_72_4607_4616.pdf Articolo in rivista Springer 1866 6280 Environmental earth sciences Print Environmental earth sciences Print Environ. earth sci. Print Environmental earth sciences. Print claudia.dresti DRESTI CLAUDIA helmi.saidi SAIDI HELMI marzia.ciampittiello CIAMPITTIELLO MARZIA laura.turconi TURCONI LAURA TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |