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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. Oder - Wikipedia

    en.wikipedia.org/wiki/Oder

    It is Poland's second-longest river and third-longest within its borders after the Vistula and its largest tributary the Warta. [1] The Oder rises in the Czech Republic and flows 742 kilometres (461 mi) through western Poland, later forming 187 kilometres (116 mi) of the border between Poland and Germany as part of the Oder–Neisse line. [2]

  4. Strahler number - Wikipedia

    en.wikipedia.org/wiki/Strahler_number

    The Ohio River is of order eight and the Mississippi River is of order 10. Estimates are that 80% of the streams on the planet are first to third order headwater streams. [5] If the bifurcation ratio of a river network is high, then there is a higher chance of flooding. There would also be a lower time of concentration. [6]

  5. 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]

  6. Oder–Neisse line - Wikipedia

    en.wikipedia.org/wiki/Oder–Neisse_line

    The Oder–Neisse line (German: Oder-Neiße-Grenze, Polish: granica na Odrze i Nysie Łużyckiej) is an unofficial term for the modern border between Germany and Poland. The line generally follows the Oder and Lusatian Neisse rivers, meeting the Baltic Sea in the north.

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  8. 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 ...

  9. River bifurcation - Wikipedia

    en.wikipedia.org/wiki/River_bifurcation

    The Hase River in Melle, Germany divides into the Hase River and the Else River and has been researched as a natural phenomenon. A bifurcation of the Nerodime River in Kosovo , near the town of Ferizaj , at 42°22′19″N 21°08′00″E  /  42.371827°N 21.133306°E  / 42.371827; 21.133306 , was a hydrological curiosity as separate ...