Flood in the Marche, the rain gauge recorded the heaviest rain of the last ten years – The Sciences

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The disturbance that in the last few hours has concentrated in the areas of the Marche Apennines has caused numerous and serious effects on the ground such as landslides and flooding of streams. The data recorded by the rainfall monitoring systems of the national rain gauge network that Cnr-Irpi imports hourly show that in the afternoon-evening of Thursday 15 September the intensity of the rain recorded at the rain gauge in Cantiano (PU) was found to be the most intense. of the …

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The disturbance that in the last few hours has concentrated in the areas of the Marche Apennines has caused numerous and serious effects on the ground such as landslides and flooding of streams.
The data recorded by the rainfall monitoring systems of the national rain gauge network that Cnr-Irpi imports hourly show that in the afternoon-evening of Thursday 15 September the intensity of the rain recorded at the rain gauge in Cantiano (PU) was found to be the most intense. of the last 10 years. In particular, for that rain gauge, the cumulative rainfall recorded in the time interval 17: 00-21: 00 was 265 mm. The most violent hourly intensities occurred between 19:00 and 20:00 with 76mm / h, reaching a peak of 90mm / h between 20:00 and 21:00.

These rain measures have increased the flows of streams and rivers that have caused extensive damage and victims in the province of Ancona.
The Catalog of landslide and flood events with damage to people, created by Cnr-Irpi, highlights that in the areas affected by the disturbance of 15 September, victims have been recorded on several occasions due to flooding of rivers, as already happened for example in 2014 , when 3 victims were recorded in the territories of Senigallia and Ostra Vetere (AN).

In general, analyzing the data in the Catalog over a broader time period and on a national scale, in the 22 years between 2000 and 2021 the regions with the highest number of victims from flood phenomena were Tuscany (27), Sicily (25), Sardinia (24) and Liguria (24). During the same period the Marche region suffered various flood events which caused a total of 7 victims.

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When known, the database also contains information on the time and ways in which men and women lose their lives due to geo-hydrological events. In general, analyzing the data of the last 50 years, it is found that the majority of men (61% men, 39% women) lose their lives due to the floods and that people who died outdoors turn out to be three times those indoors. . Traveling by car along the flooded roads is a dangerous condition. In this case, the data show that it is young and adult men who fall victim to it. As for the people who get stuck in the rooms on the ground floor and in the basements, these are mostly adult and elderly women.

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The data also analyzed by time slots show that the low light conditions, therefore the evening and night hours, are those during which the highest number of victims was recorded.
The analyzes carried out attest to how much the knowledge and dissemination of information about the ways and circumstances with which the geo-hydrological processes interact with people can increase the awareness of the population about these risks.

(The editors of “Le Scienze” are not responsible for the text of this press release, which has been published in its entirety and without changes)

The article is in Italian

Tags: Flood Marche rain gauge recorded heaviest rain ten years Sciences

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