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  2. Stream order - Wikipedia

    en.wikipedia.org/wiki/Stream_order

    The stream order or waterbody order is a positive whole number used in geomorphology and hydrology to indicate the level of branching in a river system.. There are various approaches [1] to the topological ordering of rivers or sections of rivers based on their distance from the source ("top down" [2]) or from the confluence (the point where two rivers merge) or river mouth ("bottom up" [3 ...

  3. Strahler number - Wikipedia

    en.wikipedia.org/wiki/Strahler_number

    If the node has two or more children with Strahler number i, and no children with greater number, then the Strahler number of the node is i + 1. The Strahler number of a tree is the number of its root node. Algorithmically, these numbers may be assigned by performing a depth-first search and assigning each node's number in postorder. The same ...

  4. Oder - Wikipedia

    en.wikipedia.org/wiki/Oder

    The Oder (/ ˈ oʊ d ər / OH-dər, German: ⓘ; Czech, Lower Sorbian and Polish: Odra; [a] Upper Sorbian: Wódra) is a river in Central Europe. It is Poland's second-longest river and third-longest within its borders after the Vistula and its largest tributary the Warta . [ 1 ]

  5. List of rivers of Germany - Wikipedia

    en.wikipedia.org/wiki/List_of_rivers_of_Germany

    Rivers that flow into the sea are sorted geographically, along the coast. Rivers that flow into other rivers are sorted by the proximity of their points of confluence to the sea (the lower in the list, the more upstream).

  6. River - Wikipedia

    en.wikipedia.org/wiki/River

    A river is a natural flow of freshwater that flows on or through land towards another body of water downhill. [1] This flow can be into a lake, an ocean, or another river. [1] A stream refers to water that flows in a natural channel, a geographic feature that can contain flowing water. [2] A stream may also be referred to as a watercourse. [2]

  7. River morphology - Wikipedia

    en.wikipedia.org/wiki/River_morphology

    The terms river morphology and its synonym stream morphology are used to describe the shapes of river channels and how they change in shape and direction over time. The morphology of a river channel is a function of a number of processes and environmental conditions, including the composition and erodibility of the bed and banks (e.g., sand, clay, bedrock); erosion comes from the power and ...

  8. Tributary - Wikipedia

    en.wikipedia.org/wiki/Tributary

    The Irtysh is a chief tributary of the Ob river and is also the longest tributary river in the world with a length of 4,248 km (2,640 mi). The Madeira River is the largest tributary river by volume in the world with an average discharge of 31,200 m 3 /s (1.1 million cu ft/s).

  9. Bóbr - Wikipedia

    en.wikipedia.org/wiki/Bóbr

    The Bóbr has a length of 279 kilometres (173 mi) (3 in Czech Republic, 276 in Poland, 10th longest Polish river) and a basin area of 5,874 square kilometres (2,268 sq mi) (44 in Czech Republic and 5,830 in Poland). [2] It originates on a slope of the Rýchory mountains in the southeast of the Krkonoše range.