Adour
river in France From Wikipedia, the free encyclopedia
The Adour (Basque: Aturri, Occitan: Ador) is a river in southwestern France. It flows through the Occitanie and Nouvelle-Aquitaine regions.
| Adour L'Adour (French) | |
|---|---|
 Adour seen from the bridge at Aire-sur-l'Adour | |
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| Location | |
| Country | France |
| Physical characteristics | |
| Source | |
| - location | High-Bigorre |
| - elevation | 2,200 m (7,200 ft) |
| Mouth | |
| - location | Atlantic Ocean |
| - coordinates | 43°31′46″N 1°31′25″W |
| Length | 308 km (191 mi) |
| Basin size | 16,880 km2 (6,520 sq mi) |
| Discharge | |
| - average | 150 m3/s (5,300 cu ft/s) |
It starts in the Pyrenees, at the Arbizon mountain. It flows into the Atlantic Ocean (Bay of Biscay) near Bayonne.
The Adour river has a length of 309 kilometres (192 miles).[1][N 1] Its drainage basin has an area of approximately 16,912 square kilometres (6,530 square miles).
Course
The Adour river starts, as Adour de Payolle, at the north side of the Arbizon mountain. This river combines with the Adour de Gripp and the Adour de Lesponne to form the Adour river at Campan.
The Adour flows north for almost 160 kilometres (100 miles) through the Hautes-Pyrénées to Gers. There, it turns to the west and gets into the Landes department. In Port-de-Lanne, the Adour is joined by the Gaves réunis river. Finally, it flows into the Bay of Biscay, in the Atlantic Ocean, between Anglet (Pyrénées-Atlantiques) and Tarnos (Landes).
Boats can travel on the river beginning about 72 kilometres (45 miles) from its mouth.
Some of the important tributaries (longer than 50 kilometres [31 miles]) of the Adour are:
|
Left tributaries:
|
Right tributaries |
Départements and towns found along the Adour river are:
- Hautes-Pyrénées: Campan, Bagnères-de-Bigorre, Tarbes, Maubourguet
- Gers: Riscle
- Landes: Aire-sur-l'Adour, Dax, Tarnos
- Pyrénées-Atlantiques: Bayonne
The average yearly discharge for the Adour river is 86.60 cubic metres per second (3,058 cubic feet per second) at Saint-Vincent-de-Paul in the Landes department.[12]
Average monthly discharge (m3/s) at Saint-Vincent-de-Paul (1918 - 2017)[12]
The Adour shows typical seasonal changes. 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.
The Adour at Riscle
The Adour at Aire-sur-l'Adour
The Adour view from Saint-Maurice-sur-Adour
The Adour at Saint-Sever
The Adour at Dax
The Adour between Urt and Saint-Laurent-de-Gosse
Bayonne, mouth of the Adour
Bayonne, mouth of the Adour
Bayonne, the commerce port
Adour seen from the bridge at Aire-sur-l'Adour
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- This is the length including the Adour de Payolle, following SANDRE, the French official organism; other organisms give a shorter length because they start to measure from the Campan valley, at the confluence of three small rivers.
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