Afon Dvina Ogleddol
Afon yng ngogledd Rwsia yw Afon Dvina Ogleddol (Rwseg: Се́верная Двина́, Severnaya Dvina IPA: ; Comeg: Вы́нва / Výnva, Ffineg: Vienanjoki) sy'n llifo drwy Oblast Vologda ac Oblast Arkhangelsk i mewn i Fae Dvina yn y Môr Gwyn.
Gyda Afon Pechora i'r dwyrain, mae'n cymryd y rhan fwyaf o ddŵr gogledd-orllewin Rwsia i Gefnfor yr Arctig. Ei hyd yw 744 km (462 milltir).
 | |
| Math | afon  |
|---|---|
| Daearyddiaeth | |
| Sir | Oblast Vologda, Oblast Arkhangelsk |
| Gwlad |  Rwsia |
| Cyfesurynnau | 60.7322°N 46.3303°E, 64.5333°N 40.4833°E |
| Aber | Dvina Bay |
| Llednentydd | Vaga, Afon Yemtsa, Vychegda, Uftyuga, Afon Vayenga, Yorga, Afon Nizhnyaya Toyma, Afon Pinega, Kekhta, Afon Sukhona, Afon Yug, Ukhtomka, Avnyuga, Bolshaya Kiroksa, Bolshaya Svaga, Bolshaya Shenga, Bolshaya Yura, Brodovaya, Varga, Veklimikha, Verkhnyaya Toyma, Vozhdoromka, Afon Vongoda, Yevda, Ezdringa, Ergus, Kodima, Kotlashanka, Kyntysh, Lapinka, Laya, Ludega, Lyndoga, Lyabla, Lyavlya, Malaya Svaga, Malaya Severnaya Dvina, Malaya Shenga, Morzhevka, Noza, Nozitsa, Nyuma, Nyukhmizh, Oboksha, Palenga, Pingisha, Afon Pukshenga, Pyazhma, Rakulka, Savvatievka, Seftra, Siya, Smerdya, Soyga, Striga, Chaschevka, Chelmokhta, Chirukha, Shirsha, Shomkosa, Shuzhega, Yumata, Yumizh, Yara, Topsa, Afon Tulgas, Tyadema, Tyoda, Udima, Afon Undysh, Unzhitsa, Khepalka, Kanza, Sergeev, Usolka, Pyanda, Shoromka, Isakogorka, Olkhovka, Koksa, Demkina, Uskala, Zhaberka, Peschansky Poloy, Shoksha, Nykolka, Onishevka |
| Dalgylch | 357,000 cilometr sgwâr |
| Hyd | 744 cilometr |
| Arllwysiad | 3,490 metr ciwbic yr eiliad |
Prif isafonydd Afon Dvina Ogleddol yw Afon Vychegda (dde), Afon Vaga (chwith), ac Afon Pinega (dde).
Ffurfir yr afon yn y man lle cyfuna Afon Yug ac Afon Sukhona ger Velikiy Ustyug.
Gweler hefyd
Dolenni allanol
- Afon Dvina Ogleddol, Y Gwyddoniadur Sofietaidd Mawr (Rwseg)
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