| Napo river | |
|---|---|
 The Napo River to the east of Coca | |
 Map of the Amazon Basin with the Napo River highlighted | |
| Location | |
| Countries | |
| Physical characteristics | |
| Source | |
| • location | Confluence of Jatunyaçu and Anzu, Ecuador |
| • coordinates | 1°2′48.6204″S 77°48′27.4392″W / 1.046839000°S 77.807622000°W |
| • elevation | 430 m (1,410 ft) |
| 2nd source | |
| • location | Jatunyaçu–Verdeyaçu, Andes, Ecuador |
| • coordinates | 0°38′22.6248″S 78°3′29.1924″W / 0.639618000°S 78.058109000°W |
| • elevation | 3,419 m (11,217 ft) |
| 3rd source | |
| • location | Jatunyaçu–Mulatos, Andes, Ecuador |
| • coordinates | 0°53′55.0464″S 78°24′32.8824″W / 0.898624000°S 78.409134000°W |
| • elevation | 3,871 m (12,700 ft) |
| 4th source | |
| • location | Anzu River, Andes, Ecuador |
| • coordinates | 1°23′30.408″S 78°4′48.7668″W / 1.39178000°S 78.080213000°W |
| • elevation | 1,430 m (4,690 ft) |
| Mouth | Amazon River |
• location | 70 km (43 mi) downstream from Iquitos, Loreto Region, Peru |
• coordinates | 3°27′28″S 72°43′3″W / 3.45778°S 72.71750°W |
• elevation | 78 m (256 ft) |
| Length | 1,130 km (700 mi)[1] |
| Basin size | 103,307.79 km2 (39,887.36 sq mi)[2] |
| Discharge | |
| • location | Francisco de Orellana (near mouth) |
| • average | (Period: 1971–2000)7,147.8 m3/s (252,420 cu ft/s)[2] |
| • minimum | 3,200 m3/s (110,000 cu ft/s)[3] |
| • maximum | 10,800 m3/s (380,000 cu ft/s)[3] |
| Discharge | |
| • location | Mazán (Bella Vista) |
| • average | (Period: 1991–2023)7,000 m3/s (250,000 cu ft/s)[4] |
| • minimum | 3,250 m3/s (115,000 cu ft/s)[4] |
| • maximum | 11,200 m3/s (400,000 cu ft/s)[4] |
| Discharge | |
| • location | Santa Clotilde |
| • average | (Period: 2002–2011)5,895 m3/s (208,200 cu ft/s)[5] |
| Discharge | |
| • location | Nueva Rocafuerte |
| • average | (Period: 2001–2009)2,032 m3/s (71,800 cu ft/s)[5] |
| Discharge | |
| • location | Puerto Francisco de Orellana |
| • average | (Period: 2001–2009)1,105 m3/s (39,000 cu ft/s)[5] |
| Basin features | |
| Progression | Amazon → Atlantic Ocean |
| River system | Amazon River |
| Tributaries | |
| • left | Jatunyaçu, Misahualli, Payamino, Coca, Aguarico, Tamboyaçu |
| • right | Anzu, Llocullón, Tiputini, Yasuní, Anahiri, Curaray, Tacshacuraray, Mazán |
The Napo River (Spanish: Río Napo) is a tributary to the Amazon River that rises in Ecuador on the flanks of the east Andean volcanoes of Antisana, Sincholagua and Cotopaxi.
The total length is 1,075 km (668 mi). The river drains an area of ca 103,000 km2. The mean annual discharge at Mazán 6,800 m3/s (240,000 cu ft/s).[6][7][8]
- ^ Ziesler, R.; Ardizzone, G.D. (1979). "Amazon River System". The Inland waters of Latin America. Food and Agriculture Organization of the United Nations. ISBN 92-5-000780-9. Archived from the original on 8 November 2014.
- ^ a b "Amazon".
- ^ a b Charles J., Vörösmarty; Berrien, Moore; Annette L., Grace; M. Patricia, Gildea (1989). CONTINENTAL SCALE MODELS OF WATER BALANCE AND FLUVIAL TRANSPORT: AN APPLICATIONS TO SOUTH AMERICA (PDF). Vol. 3. p. 241-265.
- ^ a b c "Reportes hidrológicos". Archived from the original on 2023-10-03. Retrieved 2023-10-03.
- ^ a b c "6_1-6_Linea Ambiental" (PDF). Archived from the original (PDF) on 2014-06-07. Retrieved 2021-10-15.
- ^ Christophoul, Frédéric (January 2009). "Sediment budget of the Napo River, Amazon basin, Ecuador and Peru". www.academia.edu Hydrological …, 2009.
- ^ ESTUDIO BINACIONAL DE NAVEGABILIDAD DEL RÍO NAPO (PDF). 2010.