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The list of "drainage basins by area identifies basins (also known as watersheds or catchments), sorted by area, which drain to "oceans, "mediterranean seas, rivers, lakes and other water bodies. All basins larger than 400,000 km2 (150,000 sq mi) are included as well as selected smaller basins. It includes drainage basins which do not flow to the ocean ("endorheic basins). It includes oceanic sea drainage basins which have hydrologically coherent areas (oceanic seas are "set by IHO convention).

The oceans drain approximately 83% of the land in the world. The other 17% – an area larger than the basin of the Arctic Ocean – drains to internal endorheic basins.

Note that there are substantial areas of the world that do not "drain" in the commonly understood sense. In Arctic deserts much of the snowfall sublimates directly into the air and does not melt into flowing water, while in equatorial deserts precipitation may evaporate before joining any substantial water course. However, these areas can still be included in topographically defined basins if one considers the hypothetical flow of water (or ice), and thus nutrients or pollutants, over the surface of the ground (or ice sheet); this is the approach taken here. For example, the Antarctic ice sheet can be divided into basins,[1] and most of Libya is included in the Mediterranean Sea basin even though almost no water from the interior actually reaches the sea.

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Major "continental divides, showing drainage into the major oceans and seas of the world--Drainage basins of the principal oceans and seas of the world. Grey areas are endorheic basins that do not drain to the ocean.

Contents

Basins[edit]

"Continent color key
"Africa "Asia "Asia/Europe "Europe "North America "Australia "South America "Antarctica
Basin Type Continent Drains to Basin Area
km2
Basin Area
mi2
Notes
"Atlantic Ocean Ocean multiple n/a 69,800,000 26,900,000 [Note 1]
"Arctic Ocean Ocean multiple n/a 23,100,000 8,900,000 [Note 1]
"Pacific Ocean Ocean multiple n/a 20,300,000 7,800,000 [Note 1]
"Indian Ocean Ocean multiple n/a 19,400,000 7,500,000 [Note 1]
"Southern Ocean Ocean "Antarctica n/a 14,000,000 5,400,000 [Note 1][Note 2]
"Mediterranean Sea "Mediterranean sea multiple Atlantic Ocean [Note 3] 8,500,000 3,300,000 [Note 1]
"Gulf of Mexico and "Caribbean Sea Mediterranean sea multiple Atlantic Ocean [Note 3] 6,200,000 2,400,000 [Note 1]
"Amazon River Primary river "South America Atlantic Ocean 6,145,186 2,372,670 [2]
"Hudson Bay drainage basin Mediterranean sea North America Atlantic Ocean 3,861,400 1,490,900
"Congo River Primary river "Africa Atlantic Ocean 3,730,881 1,440,501 [2]
"Caspian Sea Lake Asia/Europe n/a ("endorheic basin) 3,626,000 1,400,000
"Nile River Primary river Africa Mediterranean Sea 3,254,853 1,256,706 [2]
"Mississippi-Missouri River Primary river "North America Gulf of Mexico 3,202,185 1,236,371 [2]
"Río de la Plata Estuary South America Atlantic Ocean 3,170,000 1,220,000 [3]
"Ob River Primary river "Asia Arctic Ocean 2,982,493 1,151,547 [2]
"Paraná River Primary river South America Río de la Plata 2,582,704 997,188 [2]
"Yenisei River Primary river Asia Arctic Ocean 2,554,388 986,255 [2]
"Chad Basin Endorheic basin Africa n/a (endorheic basin) 2,497,738 964,382 [2]
"Lena River Primary river Asia Arctic Ocean 2,306,743 890,638 [2]
"Black Sea Mediterranean sea Asia/Europe Mediterranean Sea [Note 3] 2,400,000 930,000 [Note 1]
"Niger River Primary river Africa Atlantic Ocean 2,261,741 873,263 [2]
"Amur River Primary river Asia Pacific Ocean 1,929,955 745,160 [2]
"Mackenzie River Primary river North America Beaufort Sea 1,805,200 697,000 [4]
"Yangtze River (Chang Jiang) Primary river Asia Pacific Ocean 1,722,193 664,942 [2]
"Baltic Sea Mediterranean sea "Europe Atlantic Ocean [Note 3] 1,700,000 660,000 [Note 1]
"Irtysh River Tributary River Asia Ob River 1,673,470 646,130
"Meghna-"Padma-"Ganges–"Brahmaputra River Primary river Asia Bay of Bengal 1,621,000 626,000 [5]
"Aral Sea Lake Asia n/a (endorheic basin) 1,618,750 625,000
"Madeira River Tributary River South America Amazon River 1,485,218 573,446
"Volga River Primary river "Europe Caspian Sea 1,410,951 544,771 [2]
"Persian Gulf Mediterranean sea Asia Indian Ocean [Note 3] 1,400,000 540,000 [Note 1]
"St. Lawrence Estuary Estuary North America Gulf of Saint Lawrence 1,344,200 519,000 [2] [4]
"Zambezi River Primary river Africa Indian Ocean 1,332,574 514,510 [6]
"Missouri River Tributary river North America Mississippi River 1,331,810 514,210
"Lake Eyre Basin Lake "Australia n/a (endorheic basin) 1,200,000 460,000 [7]
"Paraguay River Tributary river South America Paraná River 1,095,000 423,000
"Indus River Primary river Asia Arabian Sea 1,081,718 417,654 [2]
"Nelson River Primary river North America Hudson Bay 1,072,300 414,000 [8]
"Murray-Darling basin Primary river Australia Southern Ocean 1,050,116 405,452 [2]
"St. Lawrence River Primary river North America Atlantic Ocean 1,049,636 405,267 [2]
"Angara River Tributary river Asia Yenisei River 1,039,000 401,000 [9]
"Lake Chad (New Conventional Basin) Lake Africa n/a (endorheic basin) 1,035,000 400,000 [10]
"Ganges River Tributary river Asia Padma River 1,016,124 392,328 [2]
"Lake Winnipeg Lake North America Nelson River 982,900 379,500 [8]
"Great Slave Lake Lake North America Mackenzie River 976,200 376,900
"Orinoco River Primary river South America Atlantic Ocean 953,675 368,216 [2]
"Orange River Primary river Africa Atlantic Ocean 941,351 363,458 [2]
"Kasai River Tributary river Africa Congo River 925,172 357,211
"Shatt al-Arab ("Tigris, "Euphrates & "Karun) Primary river Asia Persian Gulf 916,200 353,700 [11]
"Tarim Basin Endorheic basin Asia n/a (endorheic basin) 906,500 350,000 [12]
"North Sea Mediterranean sea Europe Atlantic Ocean 850,000 330,000
"Yukon River Primary river North America Bering Sea 839,200 324,000 [4]
"Yellow River Primary river Asia Pacific Ocean 832,238 321,329 [13][Note 4]
"Mekong River Primary river Asia Pacific Ocean 805,604 311,045 [2]
"Jubba-"Shebelle basin Primary river Africa Indian Ocean 805,100 310,900 [14]
"Great Lakes Lake North America St. Lawrence River 800,114 308,926
"Danube River Primary river Europe Black Sea 795,656 307,204 [2]
"Syr Darya Primary river Asia Aral Sea 782,617 302,170 [2]
"Tocantins River Primary river South America Atlantic Ocean 764,213 295,064 [2]
"Ubangi River Tributary river Africa Congo River 754,830 291,440
"Aldan River Tributary river Asia Lena River 729,000 281,000
"Okavango River/"Okavango Delta Primary river Africa n/a (endorheic basin) 721,258 278,479 [2]
"Rio Negro Tributary river South America Amazon River 720,114 278,038
"Kolyma River Primary river Asia Arctic Ocean 679,934 262,524 [2]
"Columbia River Primary river North America Pacific Ocean 671,300 259,200 [4]
"Brahmaputra River Tributary river Asia Padma River 651,335 251,482 [2]
"Colorado River Primary river North America Gulf of California 637,137 246,000
"Mamoré River Tributary river South America Madeira River 630,835 243,567 [15]
"Red Sea Mediterranean sea Africa/Asia Indian Ocean [Note 3] 620,000 240,000 [Note 1]
"São Francisco River Primary river South America Atlantic Ocean 617,812 238,539
"Slave River Tributary river North America Great Slave Lake 616,400 238,000 [4]
"Rio Grande Primary river North America Gulf of Mexico 607,934 234,725 [2]
"Lake Baikal Lake Asia Angara River 571,000 220,000
"Songhua River Tributary river Asia Amur River 554,575 214,123 [16]
"Chari River Primary river Africa Lake Chad 548,747 211,872
"Amu Darya Primary river Asia Aral Sea 534,739 206,464 [2]
"Euphrates Tributary river Asia Shatt al-Arab 532,300 205,500 [17]
"Xingu River Tributary river South America Amazon River 520,292 200,886
"Bahr el Ghazal River Tributary river Africa Nile 520,000 200,000
"Lake Balkhash Lake Asia n/a (endorheic basin) 512,015 197,690 [2]
"Dnieper River Primary river Europe Black Sea 511,650 197,550 [18] [Note 5]
"Kama River Tributary river Europe Volga River 507,000 196,000
"Jubba River Primary river Africa Indian Ocean 497,626 192,134 [2] [Note 6]
"Great Basin Endorheic basin North America n/a (endorheic basin) 492,000 190,000 [19] [Note 7]
"Ohio River Tributary river North America Mississippi River 490,603 189,423
"Lower Tunguska River Tributary river Asia Yenisei river 473,000 183,000
"Vilyuy River Tributary river Asia Lena River 454,000 175,000
"Pearl River Primary river Asia Pacific Ocean 453,700 175,200
"Tapajós River Tributary river South America Amazon River 453,510 175,100 [20]
"Selenga River Tributary river Asia Lake Baikal 445,245 171,910
"Don River Primary river Europe Black Sea 443,729 171,325 [21] [Note 8]
"Arkansas River Tributary river North America Mississippi River 435,122 168,002
"Tobol River Tributary river Asia Irtysh River 426,000 164,000
"Limpopo River Primary river Africa Indian Ocean 421,123 162,596 [2]
"Senegal River Primary river Africa Atlantic Ocean 419,575 161,999 [2]
"Irrawaddy River Primary river Asia Indian Ocean 413,710 159,730 [2]
"Volta River Primary river Africa Atlantic Ocean 407,093 157,179 [2]
"Colorado River (Argentina) Primary river South America Atlantic Ocean 373,863 144,349 [23] [Note 9]
"Sistan Basin Endorheic basin Asia n/a (endorheic basin) 370,000 140,000 [25]
"Molopo River Tributary river Africa Orange River 367,201 141,777
"Yamuna Tributary river Asia Ganges 366,223 141,399
"Uruguay River Primary river South America Río de la Plata 365,000 141,000 [Note 10]
"Khatanga River Primary river Asia Arctic Ocean 364,000 141,000
"Marañón River Tributary River South America Amazon River 363,286 140,266 [26]
"Guaporé River Tributary river South America Mamoré River 360,534 139,203 [15]
"Indigirka River Primary river Asia Arctic Ocean 360,400 139,200
"Araguaia River Tributary river South America Tocantins River 358,125 138,273
"Northern Dvina River Primary river Europe White Sea 357,075 137,867 [2]
"Xi River Tributary river Asia Pearl River 353,100 136,300
"Purus River Tributary river South America Amazon River 352,085 135,941 [27]
"Ucayali River Tributary river South America Amazon River 337,519 130,317
"Shebelle River Tributary river Africa Jubba River 336,627 129,972
"Saskatchewan River Tributary river North America Lake Winnipeg 335,900 129,700 [4]
"Benue River Tributary river Africa Niger River 335,035 129,358
"Parnaíba River Primary river South America Atlantic Ocean 331,643 128,048 [28] [Note 11]
"Blue Nile Tributary river Africa Nile 325,000 125,000
"Pechora River Primary river Europe Arctic Ocean 322,000 124,000
"Hai River Primary river Asia Pacific Ocean 318,200 122,900
"Godavari River Primary river Asia Indian Ocean 314,829 121,556 [30]
"Peace River Tributary river North America Slave River 306,000 118,000
"Panjnad River (Chenab & Sutlej) Tributary river Asia Indus River 300,000 120,000
"Baker Lake/"Chesterfield Inlet Lake / estuary North America Hudson Bay 299,000 115,000 [31]
"Red River of the North Tributary river North America Lake Winnipeg 287,500 111,000 [4]
"Churchill River (Hudson Bay) Primary river North America Hudson Bay 281,300 108,600 [4]
"Neva River Primary river Europe Baltic Sea 281,000 108,000
"Taz Estuary Estuary Asia Arctic Ocean 262,000 101,000
"Snake River Tributary river North America Columbia River 278,450 107,510
"Liard River Tributary river North America Mackenzie River 277,100 107,000 [4]
"Lake Athabasca-"Rivière des Rochers Lake North America Slave River 274,540 106,000
"Salween River Primary river Asia Indian Ocean 271,888 104,977 [2][Note 12]
"Lukuga River Tributary river Africa Congo River 270,900 104,600
"Luvua River Tributary river Africa Congo River 265,300 102,400
"Kwango River Tributary river Africa Kasai River 263,400 101,700
"Desaguadero River Tributary River South America Colorado River or Endorheic 260,000 100,000
"Mapimí-"Salado basin Endorheic basin North America n/a (endorheic basin) 260,000 100,000
"Krishna River Primary river Asia Indian Ocean 258,948 99,980
"Magdalena River Primary river South America Atlantic Ocean 257,438 99,397
"Dongting Lake Lake Asia Yangtze River 257,000 99,000 [33]
"Japurá/Caquetá River Tributary River South America Amazon River 255,700 98,700
"Nen River Tributary river Asia Songhua River 252,100 97,300 [34]
"Oka River Tributary river Europe Volga 245,000 95,000
"Rhine–Meuse–Scheldt delta Primary river Europe North Sea 240,000 93,000
"Stony Tunguska River Tributary river Asia Yenisei river 240,000 93,000
"Beni River Tributary River South America Madeira River 239,825 92,597 [15]
"Lake Victoria Lake Africa Nile River 238,900 92,200
"Yana River Primary river Asia Arctic Ocean 238,000 92,000
"Lake Tanganyika Lake Africa Lukuga River 236,300 91,200
"Sangha River Tributary River Africa Congo River 233,740 90,250 [35]
"Fraser River Primary river North America Pacific Ocean 233,100 90,000 [4]
"Zeya River Tributary river Asia Amur River 233,000 90,000
"Liao River Primary river Asia Pacific Ocean 232,200 89,700
"Ural River Primary river Asia/Europe Caspian Sea 231,000 89,000
"Juruá River Tributary River South America Amazon River 225,828 87,193
"Sobat River Tributary River Africa Nile River 225,000 87,000
"Vitim River Tributary river Asia Lena River 225,000 87,000
"Ogooué River Primary river Africa Atlantic Ocean 223,856 86,431
"Tigris River Tributary river Asia Shatt al-Arab 221,400 85,500 [36]
"Platte River Tributary river North America Missouri River 219,916 84,910
"Olenyok River Primary river Asia Arctic Ocean 219,000 85,000
"Olyokma River Tributary river Asia Lena River 210,000 81,000
"Shilka River Tributary river Asia Amur River 206,000 80,000
"Rufiji River Primary river Africa Indian Ocean 204,450 78,940 [37]
"Kura River Primary river Asia Caspian Sea 198,300 76,600
"Vaal River Tributary River Africa Orange River 196,438 75,845
"Vistula Primary river Europe Baltic Sea 194,424 75,068
"Ussuri River Tributary river Asia Amur River 193,000 75,000
"Juruena River Tributary river South America Tapajos River 191,030 73,760 [20]
"Anadyr River Primary river Asia Bering Sea 191,000 74,000
"Branco River Tributary River South America Rio Negro 189,925 73,330
"Ishim River Tributary river Asia Irtysh River 189,000 73,000
"Rhine Primary river Europe North Sea 185,300 71,500
"Komadugu-Yobe River Primary river Africa Lake Chad 183,009 70,660 [38]
"Assiniboine River Tributary river North America Red River 182,000 70,000 [4]
"Pyasina River Primary river Asia Pyasina Gulf 182,000 70,000
"Yellowstone River Tributary river North America Missouri River 181,000 70,000
"Uyandina River Tributary river Asia Indigirka River 176,000 68,000
"Kotuy River Tributary river Asia Khatanga River 176,000 68,000
"Chenab River Tributary river Asia Panjnad River 176,000 68,000 [39]
"Han River Tributary river Asia Yangtze River 174,300 67,300
"Huai River Tributary river Asia Yangtze River 174,000 67,000
"Tshuapa/Ruki River Tributary river Africa Congo River 173,800 67,100
"Maya River Tributary river Asia Aldan River 171,000 66,000
"Salado River (Buenos Aires) Primary river South America Atlantic Ocean 170,000 66,000
"Red River of the South Tributary river North America Mississippi River 169,890 65,590
"Red River Primary river Asia Gulf of Tonkin 169,000 65,000 [40]
Cuvelai River-"Etosha Pan Basin Endorheic basin Africa n/a (endorheic basin) 166,649 64,344 [41]
"Chesapeake Bay Mediterranean sea North America Atlantic Ocean 166,534 64,299
"Helmand River Primary river Asia Sistan Basin 166,000 64,000 [25]
"Argun / Hailar River Tributary river Asia Amur River 164,000 63,000
"Chao Phraya River Primary river Asia Gulf of Thailand 160,400 61,900
"Hulun Lake Lake Asia Amur River / endorheic 160,335 61,906 [Note 13]
"Jialing River Tributary river Asia Yangtze River 160,000 62,000
"Luangwa River Tributary river Africa Zambezi River 159,615 61,628 [6]
"Tisza River Tributary river Europe Danube 157,186 60,690
"Torgay/Turgai River Primary river Asia n/a (endorheic basin) 157,000 61,000
"Mbomou River Tributary river Africa Ubangi River 156,950 60,600
"Kafue River Tributary river Africa Zambezi River 155,805 60,157 [6]
"Kansas River Tributary river North America Missouri River 155,695 60,114
"Ruvuma River Primary river Africa Indian Ocean 155,500 60,000
"Essequibo River Primary river South America Atlantic Ocean 154,186 59,532
"Sacramento–San Joaquin River Delta Primary river North America San Francisco Bay 153,000 59,000
"Sankuru River Tributary river Africa Kasai River 151,112 58,345 [42]
"Atbarah River Tributary river Africa Nile 150,000 58,000 [Note 14]
"Taz River Primary river Asia Taz Estuary 150,000 58,000
"Tietê River Tributary river South America Paraná River 150,000 58,000
"Cuanza River Primary river Africa Atlantic Ocean 149,688 57,795 [2]
"Shire River ("Lake Malawi) Tributary river Africa Zambezi River 149,159 57,591 [6]
"Elbe Primary river Europe North Sea 148,268 57,247
"Putumayo River Tributary River South America Amazon River 148,000 57,000
"Bani River Tributary river Africa Niger River 146,570 56,590 [43]
"Ottawa River Tributary river North America St. Lawrence River 146,300 56,500 [4]
"South Saskatchewan River Tributary river North America Saskatchewan River 146,100 56,400 [4]
"Lake Titicaca-"Desaguadero River-"Lake Poopó System Endorheic basin "South America n/a (endorheic basin) 144,590 55,830 [44]
"Chambal River Tributary river Asia Yamuna River 143,219 55,297
"Rio Grande (Paraná River) Tributary river South America Paraná River 143,000 55,000
"Fitzroy River (Queensland) Primary river Australia Pacific Ocean 142,665 55,083
"Thelon River Primary river North America Baker Lake 142,400 55,000 [4]
"Belaya River Tributary river Europe Kama River 142,000 55,000
"Iriri River Tributary river South America Xingu River 141,745 54,728 [45]
"Teles Pires River Tributary river South America Tapajos River 141,620 54,680 [20]
"Mahanadi River Primary river Asia Indian Ocean 141,600 54,700
"Ili River Primary river Asia Lake Balkhash 140,000 54,000
"Sanaga River Primary river Africa Atlantic Ocean 140,000 54,000 [46]
"Min River (Sichuan) Tributary river Asia Yangtze River 140,000 54,000
"Guaviare River Tributary river South America Orinoco River 138,447 53,455 [47]
"Santiago-"Lerma basin Primary river North America Pacific Ocean 136,628 52,752
"Apure River Tributary river South America Orinoco River 136,152 52,569 [48]
"Winnipeg River Tributary river North America Lake Winnipeg 135,800 52,400 [4]
"Albany River Primary river North America Hudson Bay 135,200 52,200 [4]
"Wei River Tributary river Asia Yellow River 135,000 52,000
"Grijalva-"Usumacinta basin Primary river North America Gulf of Mexico 134,400 51,900
"Chulym River Tributary river Asia Ob River 134,000 52,000
"Lukenie River Tributary River Africa Congo River 133,432 51,518 [49]
"Koksoak River Primary river North America Ungava Bay 133,400 51,500 [4]
"Orkhon River Tributary river Asia Selenga River 132,835 51,288
"Uele River Tributary river Africa Ubangi River 131,856 50,910 [50]
"Tambo-"Ene-"Apurímac River Tributary river South America Ucayali River 131,460 50,760 [51]
"Lake Turkana Lake Africa n/a (endorheic basin) 130,860 50,530
"Aripuanã River Tributary river South America Madeira River 130,340 50,320 [15]
"Malagarasi River Tributary river Africa Lake Tanganyika 130,000 50,000
"Mar Chiquita Endorheic basin South America n/a (endorheic basin) 129,715 50,083 [52]
"Burdekin River Primary river Australia Pacific Ocean 129,700 50,100
"Vyatka River Tributary river Europe Kama River 129,000 50,000
"Yalong River Tributary river Asia Yangtze River 128,444 49,593
"Taseyeva River Tributary river Asia Angara River 128,000 49,000
"Ghaghara / Karnali River Tributary river Asia Ganges River 127,950 49,400
"Trombetas River Tributary river South America Amazon River 127,643 49,283 [53]
"Tana River (Kenya) Primary river Africa Indian Ocean 126,026 48,659
"Madre de Dios River Tributary river South America Beni River 125,287 48,374 [15]
"Green River Tributary river North America Colorado River 124,578 48,100
"Kuskokwim River Primary river North America Bering Sea 124,319 48,000
"Salado River (Argentina) Tributary river South America Paraná River 124,199 47,954
"Taymyr River Primary river Asia Kara Sea 124,000 48,000
"Canadian River Tributary river North America Arkansas River 123,221 47,576
"Aruwimi River Tributary River Africa Congo River 122,853 47,434 [54]
"North Saskatchewan River Tributary river North America Saskatchewan River 122,800 47,400 [4]
"Prypiat River Tributary river Europe Dnieper 121,840 47,040
"Vychegda River Tributary river Europe Northern Dvina 121,000 47,000
"Mun River Tributary river Asia Mekong River 119,180 46,020
"Oder Primary river Europe Baltic Sea 118,861 45,892
"Porcupine River Tributary river North America Yukon River 117,900 45,500 [4]
"Loire Primary river Europe Atlantic Ocean 117,000 45,000
"Lomami River Tributary river Africa Congo River 116,209 44,869 [55]
"Brazos River Primary river North America Gulf of Mexico 116,000 45,000
Awash Basin Endorheic basin Africa n/a ("endorheic basin) 116,000 45,000
"Mobile River Primary river North America Gulf of Mexico 115,000 44,000
"Pecos River Tributary river North America Rio Grande 115,000 44,000
"Pilcomayo River Tributary river South America Paraguay River 114,402 44,171 [56]
"Sutlej River Tributary river Asia Indus River 114,343 44,148 [57]
"Panj River Tributary river Asia Amu Darya River 114,000 44,000
"Tanana River Tributary river North America Yukon River 114,000 44,000
"Kwando/Chobe River Tributary river Africa Zambezi River 113,393 43,781 [6]
"Omolon River Tributary river Asia Kolyma River 113,000 44,000
"Uchur River Tributary river Asia Aldan River 113,000 44,000
"Balsas River Primary river North America Pacific Ocean 112,320 43,370
"Pur River Primary river Asia Taz Estuary 112,000 43,000
"Awash River Primary river Africa Lake Abbe (endorheic) 110,000 42,000
"Pranhita River Tributary river Asia Godavari River 109,078 42,115
"Flinders River Primary river Australia Gulf of Carpentaria 109,000 42,000
"Moose River (Ontario) Primary river North America Hudson Bay 108,500 41,900 [4]
"Hayes River Primary river North America Hudson Bay 108,000 42,000 [4]
"Anyuy River (Sakha) Tributary river Asia Kolyma River 107,000 41,000
"Bermejo River Tributary river South America Paraguay River 106,924 41,284 [56]
"Cunene River Primary river Africa Atlantic Ocean 106,560 41,140
"Back River Primary river North America Arctic Ocean 106,500 41,100 [4]
"Save River Primary river Africa Indian Ocean 106,420 41,090
"Tennessee River Tributary river North America Ohio River 105,868 40,876
"Aras River Tributary river Asia Kura River 104,785 40,458
"Bahr Aouk River Tributary river Africa Chari River 103,577 39,991 [58]
"Wabash River Tributary river North America Ohio River 103,500 40,000
"Colorado River (Texas) Primary river North America Gulf of Mexico 103,300 39,900
"Severn River (northern Ontario) Primary river North America Hudson Bay 102,800 39,700 [4]
"Chindwin River Tributary river Asia Irrawaddy River 102,783 39,685 [59]
"Napo River Tributary river South America Amazon River 102,190 39,460 [60]
"Río Negro (Argentina) Primary river South America Atlantic Ocean 102,000 39,000
"Logone River Tributary river Africa Chari River 101,481 39,182 [61]
"Anabar River Primary river Asia Arctic Ocean 100,000 39,000
"Barito River (Borneo) Primary river "Asia Java Sea 100,000 39,000
"Kheta River Tributary river Asia Khatanga River 100,000 39,000
"Markha River Tributary river Asia Vilyuy River 99,900 38,600
"Donets Tributary river Europe Don River 98,900 38,200
"Narmada River Primary river "Asia Arabian Sea 98,800 38,100
"Kapuas River (Borneo) Primary river "Asia South China Sea 98,749 38,127
"Rhône Primary river Europe Mediterranean Sea 98,556 38,053
"Bandama River Primary river Africa Atlantic Ocean 98,500 38,000
"Northern Sosva River Tributary river Asia Ob River 98,300 38,000
"Neman River Primary river Europe Baltic Sea 97,864 37,786
"La Grande River Primary river North America James Bay 97,600 37,700
"Douro / Duero Primary river Europe Atlantic Ocean 97,502 37,646
"Xiang River Tributary river Asia Lake Dongting 96,400 37,200
"Sava River Tributary river Europe Danube 95,419 36,841
"Athabasca River Tributary river North America Lake Athabasca 95,300 36,800

See also[edit]

Notes[edit]

  1. ^ a b c d e f g h i j k This is an approximate value based on "geospatial data from the "USGS.[1] Approximate values for the area of Greenland and Antarctica were added to this data.
  2. ^ The value listed here assumes that the entire continent drains to the ocean, such as through the many "ice streams, "outlet glaciers, and seasonal "glacial streams along the coast. However, there are many small endorheic lakes, for example in the "McMurdo Dry Valleys.
  3. ^ a b c d e f Note that the connection between a "mediterranean sea (or a large "estuary) and its parent ocean usually involves simultaneous inflow and outflow in the lower and upper water layers of the connecting channel. Depending on the salinity of the sea, the upper layer may either flow into or out from the ocean; the bottom layer will flow the opposite direction.
  4. ^ Estimates for the Yellow River basin range from ca. 752,000 km2 (Chinese, English, French, German etc. wikipedia articles, none sourced) to 944,970 km2[2].
  5. ^ Estimates for the Dnieper basin range from 504,000 km2 (most wikipedia pages) to 533,966 km2 [2]
  6. ^ Excluding the Shebelle tributary river basin.
  7. ^ The "Great Basin is a set of endorheic drainage basins, the largest being the 35,910 km2 (13,860 sq mi) basin that drains into the "Great Salt Lake.
  8. ^ Official estimates for the Don basin range from 422,000 km2 [22] to 458,694 km2.[2]
  9. ^ Estimates for the Colorado basin range from 294,076 km2 [24] to 403,005 km2.[2]
  10. ^ 365,000 km2 is almost always quoted, though the area is only ca 351,000 km2 according to River Networks. Estimates as low as 297,211 km2 [2] may perhaps exclude the "Rio Negro tributary basin.
  11. ^ Estimates range from 322,887 km2 [2], and 331,565 km2 [24] to 344,112 km2 [29]
  12. ^ Rivers Network calculated an area of 266,354 km2.[32] Often-mentioned areas of ca 324,000 km2 are clearly too high.
  13. ^ Combined drainage area of "Kherlen River (103709 km2) & Orxon Rivers (56626 km2) [2]. "In years with high precipitation, the normally exit−less endorheic lake may overflow at its northern shore."
  14. ^ Very rough estimate. Upper river's drainage area, including the Tekezé river is 120,430 km2 [3], lower drainage area is probably not as much as 69,572 km2 [4], as that includes lots of surrounding dessert.

References[edit]

  1. ^ [5] Archived 15 July 2007 at the "Wayback Machine.
  2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar "Watersheds of the World 2005" (PDF). Water Resources eAtlas. Retrieved 14 September 2017. 
  3. ^ Raúl A. Guerrero; et al. (June 1997). "Physical oceanography of the Río de la Plata Estuary, Argentina". Continental Shelf Research. 17 (7): 727–742. "Bibcode:1997CSR....17..727G. "doi:10.1016/S0278-4343(96)00061-1. 
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w "Rivers". The Atlas of Canada. Natural Resources Canada. Archived from the original on February 2, 2007. Retrieved May 15, 2011. 
  5. ^ Arnold, Guy (2000). World strategic highways. Taylor & Francis. p. 223. "ISBN "978-1-57958-098-8. Retrieved 17 May 2011. 
  6. ^ a b c d e The Zambezi River Basin, page 6.
  7. ^ "Map of the Lake Eyre basin". Environment.gov.au. 18 February 2011. Archived from the original on 20 February 2009. Retrieved 10 April 2011. 
  8. ^ a b "Canada Drainage Basins". "The National Atlas of Canada, 5th edition. "Natural Resources Canada. 1985. Retrieved 24 November 2010. 
  9. ^ "Freshwater Ecoregions Of the World". feow.org. Retrieved 15 June 2016. 
  10. ^ "LakeNet - Lakes". worldlakes.org. Retrieved 15 June 2016. 
  11. ^ Tigris Euphrates basin area at Rivers Network
  12. ^ "Encyclopædia Britannica". Britannica.com. Retrieved 10 April 2011. 
  13. ^ Huang He Delta watershed at Rivers Network.
  14. ^ "Hydropolitics in the Horn of Africa". somwe.com. Retrieved 15 June 2016. 
  15. ^ a b c d e Madeira river basin at Rivers Network.
  16. ^ Amur river basin at Rivers Network
  17. ^ Lower, Middle and Upper Euphrates river basin at Rivers Network
  18. ^ Dnieper river : Watersheds map at River Nerworks.
  19. ^ "Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units". USGS.gov. Retrieved 21 December 2010. 
  20. ^ a b c Tapajos basin at Rivers Network.
  21. ^ Don River watershed at Rivers Network.
  22. ^ Don River at the State water register of the Russian Federation
  23. ^ Colorado watershed at Rivers Network.
  24. ^ a b River Ecosystem Ecology: A Global Perspective, Gene E. Likens, Academic Press, March 29, 2010, page 359
  25. ^ a b "Restoration and Sustainable Use of the Shared Sistan Basin" (PDF). United Nations Development Programme. February 2005. Retrieved 18 March 2016. 
  26. ^ Maraõn basin at River Networks
  27. ^ Rio Purus basin at Rivers Network
  28. ^ Parnaiba Basin at Rivers Network.
  29. ^ Ramos, Ramos, & Ramos (2014). Ichthyofauna of the Parnaíba river Basin, Northeastern Brazil. Biota Neotrop. 14(1).
  30. ^ Goodavari River watersheds map at Rivers Network.
  31. ^ Baker Basin at "UNH/Global Runoff Data Centre
  32. ^ Upper Salween at Rivers Network.
  33. ^ Xi-jun Lai; Zi-ming Wang (October 2017). "Flood management of Dongting Lake after operation of Three Gorges Dam". Water Science and Engineering. 10 (4). 
  34. ^ Amur river basin at Rivers Network.
  35. ^ Sangha Basin at Rivers Network.
  36. ^ Lower, Middle and Upper Tigris river basin at Rivers Network
  37. ^ Rufiji river basin at Rivers Network.
  38. ^ Hadedja - Jama'are - Komadugu Basin at Rivers Network
  39. ^ Chenab river basin at Rivers Network.
  40. ^ Red River Basin page at redriverprogram.com
  41. ^ "Cuvelai River-Etosha Pan Basin - AquaPedia Case Study Database". aquapedia.waterdiplomacy.org. Retrieved 15 June 2016. 
  42. ^ Sankuru basin at Rivers Network.
  43. ^ Niger watershed maps at river networks. The often quoted 101,600 km2 is the basin upstream of "Douna.
  44. ^ Canedo, Claudia; Pillco Zolá, Ramiro; Berndtsson, Ronny (12 April 2016). "Role of Hydrological Studies for the Development of the TDPS System". Water. 8 (4): 144. "doi:10.3390/w8040144 – via www.mdpi.com. 
  45. ^ Rio Xingu watershed map at Rivers Network.
  46. ^ https://www.internationalrivers.org/files/attached-files/irbm_sanaga.pdf
  47. ^ Guaviare river basin at Rivers Network
  48. ^ Apure river basin at Rivers Network
  49. ^ Lukenie Basin at Rivers Network.
  50. ^ Uele Basin at Rivers Network.
  51. ^ Ucayali river basin at Rivers Network
  52. ^ Mar Chiquita Watershed at riversnetwork.org
  53. ^ Lower Amazon watershed at Rivers Network
  54. ^ Aruwimi Basin at Rivers Network.
  55. ^ Lomami Basin at Rivers Network.
  56. ^ a b Rio Paraguay watersheds map at Rivers Network.
  57. ^ Sutlej river basin at Rivers Network.
  58. ^ "Chari - Golongosso". www.grdc.sr.unh.edu. 
  59. ^ "Chindwin river : Watershed map". 
  60. ^ "rio Napo : Watersheds map". 
  61. ^ Chari-Logone riveers watershed mapes at rivers networks.

External links[edit]

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