Liamone

The Liamone is a coastal river French of the Corsica island of , length 40,9 kilometers.

Geography

Liamone takes its source on the Western slope of Assembles Cimatella (of 2 high; 099 meters), on the territory of the commune of Letia. In its higher course, it forms the cascade of Piscia to the onda . After an impetuous course of almost 41 kilometers, it is thrown in the gulf of Sagone in the north of Ajaccio.

Affluents

Its principal affluents are:

the Guagno which joins out of left bank with Letia, not far from Guagno-the-Baths.
the Cruzzini which gives him its water out of left bank on the level of the locality bridge-to-Truggia on the territory of Arbori.

Common crossings

Liamone crosses or skirts ten communes, all located in Corse-du-Sud (2A): Letia, Murzo, Vico, Rosazia, Arbori, Lopigna, Arro, Ambiegna, Coggia and Casaglione.

Hydrology

Liamone is a small very abundant river, more than the average of the Corsican rivers however already strongly fed in general. Its flow was observed during one 39 years period (1969-2007), with Arbori, the locality bridge-with-Truggia located at ten kilometers of its mouth in the the Mediterranean. The catchment area of the river is there of 322 km ² is almost the totality of this last.

The interannual medium flow or module of the river with Arbori is of 9,08 m ³ a second.

Liamone present of the seasonal fluctuations of flow marked well, as it is generally the case in Mediterranean region. The high waters occur in winter like in spring and carry the average monthly flow on a level located between 9,68 and 15,4 m ³ a second, from November to May included (with three maximum, in November, February and April). As of second half of May, the flows decrease and crumble in June, thus leading to low waters of summer. Those are short and have in July place and in August, being accompanied by a fall of the monthly medium flow going up to 1,00 m ³ in August, which remains appreciable in addition. But the fluctuations are much more marked on short periods, and variables according to the years.

With the low water level, the VCN3 can fall until 0,220 m ³, in the event of dry period quinquennial, that is to say 220 liters a second, which is rather low, but perfectly normal in the context of the island (see note).

As for the risings, they can be very important. The QIX 2 and QIX 5 or calculated flows of biennial and quinquennial rising are worth respectively 440 and 640 m ³. The QIX 10 or calculated flow of decennial rising is of 770 m ³ a second, the QIX 20 of 900 m ³, while the QIX 50 exceeds the 1000 m ³ a second (see note). Let us stress that the volume of these risings exceed by far those of the Marne or the Yonne, though resulting from a rather tiny basin.

The maximum instantaneous flow recorded at the station was of 1070 m ³ a second on November 6th, 2000, while the value maximum day laborer was of 454 m ³ a second on November 3rd of the same year. By comparing the first of these values on a QIX scale of the river, it arises that this rising was of order cinquantennal and thus rather exceptional.

Liamone is an extremely abundant river, strongly supplied with such abundant precipitations they, in the area of the chain of tops of more than 2000 meters going of the Monte Tozzo with the Monte of Oro. The Lame of water past in its catchment area is of 892 millimetres annually, which is very high, nearly three times superior to the overall average of France, and one of the most abundant levels of the island. The specific Flow of the river (or Qsp) reached of this fact the important figure of 28,2 liters a second and per square kilometer of basin.

The department of Liamone

The river also gave its name to the department of the Liamone , old French department, whose chief town was Ajaccio. Created in 1793 at the time of the first partition of the Corsica , it was removed in 1811 when the department of Corsica was restored.

In 1976, the department of Corse-du-Sud was created with limits equivalent to Liamone.

For the administrative units of this department, to see information in the article on the Corsica .

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