Cauca ( Spanish: Río Cauca ) - a river in the northwest of South America , flows through the western part of Colombia . Left tributary of Magdalena . The length of the river is 1350 km [1] , the catchment area is 63,300 km 2 [2] . It flows into Magdalena at a distance of 320 kilometers from its mouth [1] .
| Cauca | |
|---|---|
| Spanish Rio cauca | |
 River basin | |
| Characteristic | |
| Length | 1350 km |
| Pool | 63,300 km² |
| Watercourse | |
| Source | |
| • Coordinates | |
| Mouth | Magdalena |
| • Location | 320 km on the left bank |
| • Coordinates | |
| Location | |
| Water system | Magdalena → Caribbean |
| A country |
|
 - source  - mouth | |
Geography
It originates in the Andes [3] in the south of the country in the area of Paramo de Sotaro of the Cauca department, flows into the Magdalena River Loba duct in the Bolivar department in northern Colombia [4] . It flows in a general northward direction through the departments of Cauca, Valle del Cauca , Kindio , Risaralda , Caldas , Antioquia , Cordoba , Sucre and Bolivar [4] in the deep tectonic valley between Western and Central Cordillera , cutting through the Antioquia massif in its middle course forms rapids and waterfalls . The river is navigable from Cali to Cartago and from Antioquia to the mouth.
The valleys of the Magdalena , Cauca and Patia rivers separate the ridges of the Eastern , Central and Western Cordillera.
Hydrology
Cauca has a predominantly rain type of food with two wet periods (April-June and October-December) and one dry (from July to September) [2] .
The river is divided into four hydrological regions [4] :
| No. | Title | original name | Area of the region, km 2 | Total catchment area, km 2 |
|---|---|---|---|---|
| one | Upper Cauca | Alto cauca | 5451 | 5451 |
| 2 | Valle del Cauca | Valle del Cauca | 19349 | 24800 |
| 3 | Middle Cauca | Cauca medio | 19750 | 44550 |
| four | Lower Cauca | Bajo cauca | 18750 | 63300 |
Water consumption in the middle reaches of the river, at the La Virginia water meter station, is 531 m 3 / s [4] .
Tributaries
Main tributaries:
- Night [5] (pr)
- Mans [6] (lv)
- Tarasa [6] (lv)
- San Juan [7] (lv)
- Armah [7] (pr)
- Chinchina [7] (pr)
- Campoalegre [7] (pr)
- Risaraldo [7] (lv)
- La Vieja [7] (pr)
- La Paila [7] (D)
- Bugalagrande [7] (pr)
- Tulula [3] (pr)
- Amaime [3] ( D )
- Palo [3] (D)
- Ovejas [3] (ol)
- Pendamo [3] (pr)
- Palos [3] (pr)
Reservoirs
On the river there is a Salvahin reservoir with an area of 20.31 km 2 [1] .
River Valley Population
About 10 million people live in the river valley, which makes up about a quarter of the population of Colombia [4] .
The largest cities on the river and in its valley are Manizales , Pereira , Cartago , Armenia , Tulua [7] , Guadalajara de Buga , Palmira , Cali , Popayan [3] . On the tributary of the Necha - Porse , the city of Medellin is located [6] .
Links
- Latin America, Volume 1, Soviet Encyclopedia Publishing House, Moscow, 1979, p. 565
Notes
- ↑ 1 2 3 B. Jiménez Cisneros, J. Galizia Tundisi . Diagnóstico del Agua en las Américas . - Ciudad de México: Red Interamiericana de Academias de Ciencias y Foro Consultivo y Tecnológico, 2012 .-- 448 p., Pp. 196—197, 216
- ↑ 1 2 C. Ramírez Callejas . Caracterización y modelación matemática del río Cauca (link not available) . // Ingeniería y Competitividad. Vol. 04 no. 1, 2002. p. 7-18
- ↑ 1 2 3 4 5 6 7 8 Map sheet A-18-A .
- ↑ 1 2 3 4 5 Proyecto de Modelación del Río Cauca - PMC. Modelacion matematica del rio Cauca. Volumen VIII. - Santiago de Cali: Univercidad del Valle Facultad de Ingenieria Departamento de Mecanica de fluidos y ciencias termicas, 2001., chapters 1.1, 3.1, 3.2
- ↑ Map sheet C-18-G .
- ↑ 1 2 3 Map sheet B-18-A .
- ↑ 1 2 3 4 5 6 7 8 9 Map sheet B-18-B .