The total length is 1,075 km (668 mi).[8] The river drains an area of 103,307.79 km2 (39,887.36 sq mi). The mean annual discharge is 6,660 m3/s (235,000 cu ft/s)[7] (Mazán).
Village along west bank of Napo River in Peru, a few miles above confluence with Amazon. The land visible beyond the waterway is an island in the river.
Before it reaches the plains it receives a great number of small streams from impenetrable, saturated and much broken mountainous districts, where the dense and varied vegetation seems to fight for every piece of ground. From the north it is joined by the Coca River, having its sources in the gorges of Cayambe volcano on the equator, and also a powerful river, the Aguarico having its headwaters between Cayambe and the Colombia frontier. From the west, it receives a secondary tributary, the Curaray, from the Andean slopes, between Cotopaxi and the Tungurahua volcano. From its Coca branch to the mouth of the Curaray the Napo is full of snags and shelving sandbanks and throws out numerous canoes among jungle-tangled islands, which in the wet season are flooded, giving the river an immense width. From the Coca to the Amazon it runs through a forested plain where not a hill is visible from the river - its uniformly level banks being only interrupted by swamps and lagoons. From the Amazon the Napo is navigable for river craft up to its Curaray branch, a distance of about 216 mi (348 km), and perhaps a bit further; thence, by painful canoe navigation, its upper waters may be ascended as far as Santa Rosa, the usual point of embarkation for any venturesome traveller who descends from the Quito tableland. The Coca river may be penetrated as far up as its middle course, where it is jammed between two mountain walls, in a deep canyon, along which it dashes over high falls and numerous reefs. This is the stream made famous by the expedition of Gonzalo Pizarro.
Dischargeedit
Napo River at Bellavista (km ~79,8) average (Q), dominante (Qd) discharge (m3/s) and sediment load (S – ton/year). Period from 1991/09–2009/08:[9]
Water year
Q
S
Qd
Water year
Q
S
Qd
1991/1992
5,667
28.608
6,009
2001/2002
5,979
32.431
6,335
1992/1993
7,104
47.718
7,447
2002/2003
5,669
32.154
6,312
1993/1994
8,013
67.159
8,583
2003/2004
6,148
41.916
7,054
1994/1995
6,055
34.801
6,525
2004/2005
6,456
37.953
6,767
1995/1996
5,956
34.017
6,463
2005/2006
6,143
34.77
6,523
1996/1997
6,262
38.258
6,790
2006/2007
6,535
40.344
6,942
1997/1998
9,839
105.956
10,354
2007/2008
6,615
40.832
6,977
1998/1999
6,839
51.48
7,686
2008/2009
7,428
52.504
7,749
1999/2000
6,725
49.735
7,576
2000/2001
6,452
38.527
6,810
Average
6,660
44.953
7,161
Napo River at Bellavista (km ~79,8) average, minimum and maximum discharge (m3/s). Period from 2009/09 to 2023/08:[10][5]
Water year
Mean
Min
Max
Water year
Mean
Min
Max
2009/2010
7,177
2016/2017
7,273.6
3,200
11,150
2010/2011
5,768.2
1,649
10,860
2017/2018
7,284
1,550
13,500
2011/2012
7,447.4
2,894
12,230
2018/2019
8,234
2,850
12,200
2012/2013
7,452.7
3,102
11,230
2019/2020
8,100
3,100
12,700
2013/2014
8,652
3,230
13,700
2020/2021
8,410
3,620
14,000
2014/2015
9,336
4,810
13,450
2021/2022
6,855
2,078
13,500
2015/2016
5,761
498.6
10,200
2022/2023
5,849
1,201
15,200
Average (2009–2023)
7,400
2,413
11,709
Napo River at Bellavista (km ~79,8) average, maximum, minimum and multiannual average (normal) discharge (m3/s) and anomaly (%):[11][12][13]
Mean
Max
Min
Normal
(%)
2010/09 – 2011/08
SEP
2,620.5
3,089
1,969
5,121.2
–49
OCT
2,413.5
3,061
1,649
4,898.6
–51
NOV
3,818.7
4,778
2,696
5,595.1
–32
DEC
4,774.1
6,240
4,148
5,660.6
–16
JAN
3,604.2
5,001
2,174
4,580.7
–21
FEB
2,480.7
3,478
1,920
4,386.9
–43
MAR
4,753.4
7,127
3,790
5,824.1
–18
APR
9,206.8
10,240
7,865
7,502.4
23
MAY
9,561.5
10,040
8,348
8,941.3
7
JUN
10,193.8
10,860
8,821
9,422.9
8
JUL
9,846.3
10,590
7,904
8,844.7
11
AUG
5,944.6
8,658
3,758
6,610.8
–10
Mean
5,768.2
6,930
4,587
6,449.1
–12
2011/09 – 2012/08
SEP
4,551.3
5,441
3,757
5,121.2
11
OCT
5,344.9
6,995
2,894
4,898.6
9
NOV
4,427
6,878
3,023
5,595.1
–21
DEC
6,536.8
9,160
5,205
5,660.6
15
JAN
7,998.7
9,501
4,868
4,580.7
75
FEB
6,536.8
8,302
5,155
4,386.9
49
MAR
9,557.2
12,150
5,417
5,824.1
64
APR
11,843.7
12,230
10,870
7,502.4
58
MAY
10,322.7
10,790
9,702
8,941.3
15
JUN
8,878.8
9,961
7,011
9,422.9
–6
JUL
8,189.3
9,228
7,197
8,844.7
–7
AUG
5,182
7,605
3,975
6,612.4
–22
Mean
7,447.4
9,020
5,756
6,449.2
15.5
2012/09 – 2013/08
SEP
5,037
7,822
3,249
5,096
–1
OCT
5,113
6,457
4,632
4,918
4
NOV
4,130
5,660
3,102
5,567
–26
DEC
4,755
6,838
3,568
5,698
–17
JAN
7,589
9,183
3,854
4,723
61
FEB
5,851
9,071
4,170
4,465
31
MAR
10,060
10,740
9,127
5,973
68
APR
9,405
10610
8,675
7,683
22
MAY
8,322
10,570
6,932
8,999
–8
JUN
10,495
11,230
9,743
9,400
12
JUL
9,675
10,410
8,402
8,817
10
AUG
9,001
9,776
8,386
6,551
37
Mean
7,452.7
9,030
6,153
6,490.8
15
Napo River at Bellavista (km ~79,8) mean annual and multiannual average discharge
Period of data
Multiannual average discharge
References
1930–2006
6,464 m3/s (228,300 cu ft/s)
Evaluación hidrológica de las cuencas amazonicas peruanas (HiBam/Senamhi/IRD, octubre 2011)
1989–2010
6,360 m3/s (225,000 cu ft/s); Q-dominante 6,865 m3/s (242,400 cu ft/s)
Hydrodinamic and sediment transport modelling in a bend of Napo amazonian river: Morphodynamics and infrastructure implications (IAHR, 2015)
1991–2009
6,660 m3/s (235,000 cu ft/s)
Estudio Binacional de Navegabilidad del Río Napo (Ecuador-Perú)
1997–2015
6,734.2 m3/s (237,820 cu ft/s)
Assessing the performance of global hydrological models for capturing peak river flows in the Amazon basin (2019)
2000–2011
6,461 m3/s (228,200 cu ft/s)
2001–2012
6,758 m3/s (238,700 cu ft/s)
Preliminary Analysis of Potential for River Hydrokinetic Energy Technologies in the Amazon Basin
2001–2009
6,369 m3/s (224,900 cu ft/s)
Estudio Binacional de Navegabilidad del Río Napo (Ecuador-Perú)
2003–2009
6,855 m3/s (242,100 cu ft/s); Q-min 1,875 m3/s (66,200 cu ft/s); Q-max 13,020 m3/s (460,000 cu ft/s)
Modelado hidrologico distribuido de la Cuenca Amazonica Peruana utilizando preciptación obtenida por satelite, 2013
2004–2010
6,609 m3/s (233,400 cu ft/s)
Suspended sediment dynamics in the Amazon River of Peru
2001–2005
6,976 m3/s (246,400 cu ft/s)
Sediment budget of the Napo River, Amazon basin, Ecuador and Peru
2004–2006
6,267 m3/s (221,300 cu ft/s)
Sediment budget of the Napo River, Amazon basin, Ecuador and Peru
2016–2017
9,338 m3/s (329,800 cu ft/s); Q-min 4,654 m3/s (164,400 cu ft/s); Q-max 13,200 m3/s (470,000 cu ft/s)
Hydrological modeling of the Peruvian-Ecuadorian Amazon Basin using GPM-IMERG satellite-based precipitation dataset[permanent dead link] (2017)
Confluence of Amazon River: 8,936 m3/s (315,600 cu ft/s)
Inventario y evaluación nacional de aguas superficiales (ONERN, 1980)
Bellavista: 7,032.018 m3/s (248,333.4 cu ft/s); Confluence of Amazon River: 7,147.761 m3/s (252,420.8 cu ft/s)
^"EVALUACIÓN HIDROLÓGICA DE LAS CUENCAS AMAZÓNICAS PERUANAS – OCTUBRE 2011".
^"EVALUACIÓN HIDROLÓGICA DE LAS CUENCAS AMAZÓNICAS PERUANAS – OCTUBRE 2012".
^. Archived from the original on 2021-11-02. Retrieved 2021-11-02.
April 17, 2024
napo, river, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, march, 2007, l. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Napo River news newspapers books scholar JSTOR March 2007 Learn how and when to remove this template message The Napo River Spanish Rio 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 Napo riverThe Napo River to the east of CocaMap of the Amazon Basin with the Napo River highlightedLocationCountriesEcuadorPeruPhysical characteristicsSource locationConfluence of Jatunyacu and Anzu Ecuador coordinates1 2 48 6204 S 77 48 27 4392 W 1 046839000 S 77 807622000 W 1 046839000 77 807622000 elevation430 m 1 410 ft 2nd source locationJatunyacu Verdeyacu Andes Ecuador coordinates0 38 22 6248 S 78 3 29 1924 W 0 639618000 S 78 058109000 W 0 639618000 78 058109000 elevation3 419 m 11 217 ft 3rd source locationJatunyacu Mulatos Andes Ecuador coordinates0 53 55 0464 S 78 24 32 8824 W 0 898624000 S 78 409134000 W 0 898624000 78 409134000 elevation3 871 m 12 700 ft 4th source locationAnzu River Andes Ecuador coordinates1 23 30 408 S 78 4 48 7668 W 1 39178000 S 78 080213000 W 1 39178000 78 080213000 elevation1 430 m 4 690 ft MouthAmazon River location70 km 43 mi downstream from Iquitos Loreto Region Peru coordinates3 27 28 S 72 43 3 W 3 45778 S 72 71750 W 3 45778 72 71750Length1 130 km 700 mi 1 Basin size103 307 79 km2 39 887 36 sq mi 2 3 Discharge locationFrancisco de Orellana Maynas Loreto Region near mouth average7 147 8 m3 s 252 420 cu ft s 4 Discharge locationMazan Bella Vista Loreto Region Peru 79 76 km upstream of mouth basin size 100 518 km2 38 810 sq mi 2 average Period 1991 2009 6 660 m3 s 235 000 cu ft s 6 Period 1991 09 2023 08 7 000 m3 s 250 000 cu ft s 5 minimumMNQ average 3 250 m3 s 115 000 cu ft s NNQ minimum 498 6 m3 s 17 610 cu ft s 2016 02 5 maximumMHQ average 11 200 m3 s 400 000 cu ft s HHQ maximum 15 820 m3 s 559 000 cu ft s 2015 07 15 200 m3 s 540 000 cu ft s 2023 04 5 Discharge locationSanta Clotilde Maynas Loreto Region Peru 256 2 km upstream of mouth basin size 85 770 km2 33 120 sq mi average Period 2002 2011 5 895 m3 s 208 200 cu ft s 2 Discharge locationNueva Rocafuerte Ecuador 574 1 km upstream of mouth basin size 26 879 7 km2 10 378 3 sq mi 7 average Period 2001 2009 2 032 m3 s 71 800 cu ft s 2 Discharge locationPuerto Francisco de Orellana Ecuador 782 km upstream of mouth basin size 12 343 km2 4 766 sq mi average Period 2001 2009 1 105 m3 s 39 000 cu ft s 2 Basin featuresTributaries leftJatunyacu Misahualli Payamino Coca Aguarico Tamboyacu rightAnzu Llocullon Tiputini Yasuni Anahiri Curaray Tacshacuraray MazanThe total length is 1 075 km 668 mi 8 The river drains an area of 103 307 79 km2 39 887 36 sq mi The mean annual discharge is 6 660 m3 s 235 000 cu ft s 7 Mazan Contents 1 Geography 2 Discharge 3 See also 4 ReferencesGeography edit nbsp Village along west bank of Napo River in Peru a few miles above confluence with Amazon The land visible beyond the waterway is an island in the river Before it reaches the plains it receives a great number of small streams from impenetrable saturated and much broken mountainous districts where the dense and varied vegetation seems to fight for every piece of ground From the north it is joined by the Coca River having its sources in the gorges of Cayambe volcano on the equator and also a powerful river the Aguarico having its headwaters between Cayambe and the Colombia frontier From the west it receives a secondary tributary the Curaray from the Andean slopes between Cotopaxi and the Tungurahua volcano From its Coca branch to the mouth of the Curaray the Napo is full of snags and shelving sandbanks and throws out numerous canoes among jungle tangled islands which in the wet season are flooded giving the river an immense width From the Coca to the Amazon it runs through a forested plain where not a hill is visible from the river its uniformly level banks being only interrupted by swamps and lagoons From the Amazon the Napo is navigable for river craft up to its Curaray branch a distance of about 216 mi 348 km and perhaps a bit further thence by painful canoe navigation its upper waters may be ascended as far as Santa Rosa the usual point of embarkation for any venturesome traveller who descends from the Quito tableland The Coca river may be penetrated as far up as its middle course where it is jammed between two mountain walls in a deep canyon along which it dashes over high falls and numerous reefs This is the stream made famous by the expedition of Gonzalo Pizarro Discharge editNapo River at Bellavista km 79 8 average Q dominante Qd discharge m3 s and sediment load S ton year Period from 1991 09 2009 08 9 Water year Q S Qd Water year Q S Qd1991 1992 5 667 28 608 6 009 2001 2002 5 979 32 431 6 3351992 1993 7 104 47 718 7 447 2002 2003 5 669 32 154 6 3121993 1994 8 013 67 159 8 583 2003 2004 6 148 41 916 7 0541994 1995 6 055 34 801 6 525 2004 2005 6 456 37 953 6 7671995 1996 5 956 34 017 6 463 2005 2006 6 143 34 77 6 5231996 1997 6 262 38 258 6 790 2006 2007 6 535 40 344 6 9421997 1998 9 839 105 956 10 354 2007 2008 6 615 40 832 6 9771998 1999 6 839 51 48 7 686 2008 2009 7 428 52 504 7 7491999 2000 6 725 49 735 7 5762000 2001 6 452 38 527 6 810 Average 6 660 44 953 7 161Napo River at Bellavista km 79 8 average minimum and maximum discharge m3 s Period from 2009 09 to 2023 08 10 5 Water year Mean Min Max Water year Mean Min Max2009 2010 7 177 2016 2017 7 273 6 3 200 11 1502010 2011 5 768 2 1 649 10 860 2017 2018 7 284 1 550 13 5002011 2012 7 447 4 2 894 12 230 2018 2019 8 234 2 850 12 2002012 2013 7 452 7 3 102 11 230 2019 2020 8 100 3 100 12 7002013 2014 8 652 3 230 13 700 2020 2021 8 410 3 620 14 0002014 2015 9 336 4 810 13 450 2021 2022 6 855 2 078 13 5002015 2016 5 761 498 6 10 200 2022 2023 5 849 1 201 15 200Average 2009 2023 7 400 2 413 11 709Napo River at Bellavista km 79 8 average maximum minimum and multiannual average normal discharge m3 s and anomaly 11 12 13 Mean Max Min Normal 2010 09 2011 08SEP 2 620 5 3 089 1 969 5 121 2 49OCT 2 413 5 3 061 1 649 4 898 6 51NOV 3 818 7 4 778 2 696 5 595 1 32DEC 4 774 1 6 240 4 148 5 660 6 16JAN 3 604 2 5 001 2 174 4 580 7 21FEB 2 480 7 3 478 1 920 4 386 9 43MAR 4 753 4 7 127 3 790 5 824 1 18APR 9 206 8 10 240 7 865 7 502 4 23MAY 9 561 5 10 040 8 348 8 941 3 7JUN 10 193 8 10 860 8 821 9 422 9 8JUL 9 846 3 10 590 7 904 8 844 7 11AUG 5 944 6 8 658 3 758 6 610 8 10Mean 5 768 2 6 930 4 587 6 449 1 122011 09 2012 08SEP 4 551 3 5 441 3 757 5 121 2 11OCT 5 344 9 6 995 2 894 4 898 6 9NOV 4 427 6 878 3 023 5 595 1 21DEC 6 536 8 9 160 5 205 5 660 6 15JAN 7 998 7 9 501 4 868 4 580 7 75FEB 6 536 8 8 302 5 155 4 386 9 49MAR 9 557 2 12 150 5 417 5 824 1 64APR 11 843 7 12 230 10 870 7 502 4 58MAY 10 322 7 10 790 9 702 8 941 3 15JUN 8 878 8 9 961 7 011 9 422 9 6JUL 8 189 3 9 228 7 197 8 844 7 7AUG 5 182 7 605 3 975 6 612 4 22Mean 7 447 4 9 020 5 756 6 449 2 15 52012 09 2013 08SEP 5 037 7 822 3 249 5 096 1OCT 5 113 6 457 4 632 4 918 4NOV 4 130 5 660 3 102 5 567 26DEC 4 755 6 838 3 568 5 698 17JAN 7 589 9 183 3 854 4 723 61FEB 5 851 9 071 4 170 4 465 31MAR 10 060 10 740 9 127 5 973 68APR 9 405 10610 8 675 7 683 22MAY 8 322 10 570 6 932 8 999 8JUN 10 495 11 230 9 743 9 400 12JUL 9 675 10 410 8 402 8 817 10AUG 9 001 9 776 8 386 6 551 37Mean 7 452 7 9 030 6 153 6 490 8 15Napo River at Bellavista km 79 8 mean annual and multiannual average discharge Period of data Multiannual average discharge References1930 2006 6 464 m3 s 228 300 cu ft s Evaluacion hidrologica de las cuencas amazonicas peruanas HiBam Senamhi IRD octubre 2011 1989 2010 6 360 m3 s 225 000 cu ft s Q dominante 6 865 m3 s 242 400 cu ft s Hydrodinamic and sediment transport modelling in a bend of Napo amazonian river Morphodynamics and infrastructure implications IAHR 2015 1991 2009 6 660 m3 s 235 000 cu ft s Estudio Binacional de Navegabilidad del Rio Napo Ecuador Peru 1997 2015 6 734 2 m3 s 237 820 cu ft s Assessing the performance of global hydrological models for capturing peak river flows in the Amazon basin 2019 2000 2011 6 461 m3 s 228 200 cu ft s Linea Base Ambiental Lahmeyer Agua Energia S A 2001 2012 6 758 m3 s 238 700 cu ft s Preliminary Analysis of Potential for River Hydrokinetic Energy Technologies in the Amazon Basin2001 2009 6 369 m3 s 224 900 cu ft s Estudio Binacional de Navegabilidad del Rio Napo Ecuador Peru 2003 2009 6 855 m3 s 242 100 cu ft s Q min 1 875 m3 s 66 200 cu ft s Q max 13 020 m3 s 460 000 cu ft s Modelado hidrologico distribuido de la Cuenca Amazonica Peruana utilizando preciptacion obtenida por satelite 20132004 2010 6 609 m3 s 233 400 cu ft s Suspended sediment dynamics in the Amazon River of Peru2001 2005 6 976 m3 s 246 400 cu ft s Sediment budget of the Napo River Amazon basin Ecuador and Peru2004 2006 6 267 m3 s 221 300 cu ft s Sediment budget of the Napo River Amazon basin Ecuador and Peru2016 2017 9 338 m3 s 329 800 cu ft s Q min 4 654 m3 s 164 400 cu ft s Q max 13 200 m3 s 470 000 cu ft s Hydrological modeling of the Peruvian Ecuadorian Amazon Basin using GPM IMERG satellite based precipitation dataset permanent dead link 2017 Confluence of Amazon River 8 936 m3 s 315 600 cu ft s Inventario y evaluacion nacional de aguas superficiales ONERN 1980 Bellavista 7 032 018 m3 s 248 333 4 cu ft s Confluence of Amazon River 7 147 761 m3 s 252 420 8 cu ft s Rivers Network Archived 2022 02 21 at the Wayback Machine 2020 See also editLake PilchicochaReferences edit 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 c d e 6 1 6 Linea Ambiental PDF Archived from the original PDF on 2014 06 07 Retrieved 2021 10 15 Rivers Network 2020 Archived from the original on 2022 02 21 Retrieved 2022 02 21 Rivers Network 2020 Archived from the original on 2022 02 21 Retrieved 2022 02 21 a b c d Reportes hidrologicos Estudio Binacional de Navegabilidad del rio Napo www academia edu a b 03 Navegabilidad Rio Napo Inf Fin Vol III Hidraulica Fluvial PDF dead link Sediment budget of the Napo River Amazon basin Ecuador and Peru www academia edu Hydrological 2009 Estudio Binacional de Navegabilidad del Rio Napo Ecuador Peru www academia edu 2010 Senamhi EVALUACIoN HIDROLoGICA DE LAS CUENCAS AMAZoNICAS PERUANAS OCTUBRE 2011 EVALUACIoN HIDROLoGICA DE LAS CUENCAS AMAZoNICAS PERUANAS OCTUBRE 2012 BOLETIN EXTRAORDINARIO DE LA EVALUACIoN HIDROLoGICA Y PLUVIOMETRICA EN LA CUENCA AMAZoNICA PERUANA AGOSTO 2013 Archived from the original on 2021 11 02 Retrieved 2021 11 02 Retrieved from https en wikipedia org w index php title Napo River amp oldid 1183917154, wikipedia, wiki, book, books, library,
