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Published on: February 1, 2020
Radar-based alert system to operate a sewerage network: relevance and operational effectiveness after several years
D Faure1, O Payrastre, P Auchet
1Alicime, 541 rue des grillons, F69400 Gleizé, France. dfaure.alicime@wanadoo.fr
Abstract:
Since January 2000, the sewerage network of a very urbanised catchment area in the Greater Nancy Urban Community has been operated according to the alarms generated in real time by a storm alert system using weather radar data. This alert system is based on an automatic identification of intense rain cells in the radar images. This paper presents the characteristics of this alert system and synthesises the main results of two complementary studies realised in 2002 in order to estimate the relevance and the operational effectiveness of the alert system. The first study consisted in an off-line analysis of almost 50,000 intense rain cells detected in four years of historical radar data. The second study was an analysis of the experience feedback after two years of operational use of this alert system. The results of these studies are discussed in function of the initial operational objectives.
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