Title: Aisne (river) Content: The Aisne is a river in northeastern France. It is a left tributary of the Oise river. It gave its name to the French department of Aisne. It was known in Roman times with its Celtic name of Axona. ==Geography== The Aisne river has a length of , and a drainage basin with an area of . ===Course=== The source of the Aisne is in the "Forest of Argonne", in the Rembercourt- Sommaisne commune (Meuse), near the border with the Marne department, at an altitude of about . From here, the Aisne flows to the west. The Aisne river flows through 2 regions and 5 departments. It flows through the following communes, among others: * Grand Est region ** Meuse: Vaubecourt, Triaucourt- en-Argonne ** Marne: Sainte-Menehould ** Ardennes: Vouziers, Attigny, Rethel, Château-Porcien, Asfeld * Hauts-de-France region ** Aisne: Neufchâtel-sur- Aisne, Vailly-sur-Aisne, Soissons, Vic-sur-Aisne ** Oise: Attichy, Trosly- Breuil, Compiègne Finally, it flows into the Oise river in the city of Compiègne. ==Main tributaries== The main tributaries of the Aisne river are: Left tributaries: * Ante - 26 km * Auve - 20.2 km * Bionne - 15.5 km * Retourne - 45.4 km * Suippe - 81.7 km * Tourbe - 21.1 km * Vesle - 139.5 km * Crise - 23.5 km Right tributaries: * Biesme - 28.1 km * Aire - 125.6 km * Vaux - 37.7 km == Hydrology == Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is at Trosly-Breuil in the Oise department. Average monthly discharge (m3/s) at Trosly-Breuil (1961 - 2002) Colors= id:lightgrey value:gray(0.9) id:darkgrey value:gray(0.7) id:sfondo value:rgb(1,1,1) id:barra value:rgb(0.6,0.7,0.8) ImageSize = width:500 height:300 PlotArea = left:50 bottom:30 top:30 right:30 DateFormat = x.y Period = from:0 till:120 TimeAxis = orientation:vertical AlignBars = justify ScaleMajor = gridcolor:darkgrey increment:20 start:0 ScaleMinor = gridcolor:lightgrey increment:10 start:0 BackgroundColors = canvas:sfondo BarData= bar:Jan text:Jan. bar:Feb text:Feb. bar:Mar text:Mar. bar:Apr text:Apr. bar:May text:May bar:Jun text:Jun. bar:Jul text:Jul. bar:Aug text:Aug. bar:Sep text:Sep. bar:Oct text:Oct. bar:Nov text:Nov. bar:Dec text:Dec. PlotData= color:barra width:20 align:left bar:Jan from:0 till: 110.0 bar:Feb from:0 till: 118.0 bar:Mar from:0 till: 105.0 bar:Apr from:0 till: 96.70 bar:May from:0 till: 63.40 bar:Jun from:0 till: 44.00 bar:Jul from:0 till: 34.80 bar:Aug from:0 till: 26.00 bar:Sep from:0 till: 24.00 bar:Oct from:0 till: 32.30 bar:Nov from:0 till: 47.50 bar:Dec from:0 till: 86.00 PlotData= bar:Jan at: 110.0 fontsize:S text: 110.0 shift:(-9,5) bar:Feb at: 118.0 fontsize:S text: 118.0 shift:(-12,5) bar:Mar at: 105.0 fontsize:S text: 105.0 shift:(-12,5) bar:Apr at: 96.70 fontsize:S text: 96.70 shift:(-12,5) bar:May at: 63.40 fontsize:S text: 63.40 shift:(-12,5) bar:Jun at: 44.00 fontsize:S text: 44.00 shift:(-12,5) bar:Jul at: 34.80 fontsize:S text: 34.80 shift:(-12,5) bar:Aug at: 26.00 fontsize:S text: 26.00 shift:(-12,5) bar:Sep at: 24.00 fontsize:S text: 24.00 shift:(-12,5) bar:Oct at: 32.30 fontsize:S text: 32.30 shift:(-12,5) bar:Nov at: 47.50 fontsize:S text: 47.50 shift:(-12,5) bar:Dec at: 86.00 fontsize:S text: 86.00 shift:(-12,5) The Aisne shows typical seasonal fluctuations. The highest levels of the river are in winter and spring, from December to May inclusive, with the highest level in February. They are followed by a rapid fall in the flow during the low water period that goes from July to October. ==Gallery== File:Aisne Berry-au- Bac 150808 2.jpg|Aisne River, Berry-au-Bac File:Aisne river at Voncq (Ardennes, Fr.).JPG|Aisne river at Voncq (Ardennes) File:Aisne, Soissons, jachthaven.JPG|Aisne river at Soissons File:FR-02-Pommiers.JPG|Pommiers - bridge over the Aisne River ==Related pages== * List of rivers of France