Line of lowest elevation in a watercourse or valley
The thalweg of a river
In geography, hydrography, and fluvial geomorphology, a thalweg or talweg (/ˈtɑːlvɛɡ/) is the line or curve of lowest elevation within a valley or watercourse.[1] Its vertical position in maps is the nadir (greatest depth, sounding) in the stream profile.
Under international law, a thalweg is instead taken to be the middle of the primary navigable channel of a waterway that is the default legal presumption for the boundary between entities such as states.[2][3][4] Thalwegs can have local proprietorial and administrative significance because their formerly somewhat shifting position, reliant on renewed soundings, now more fixed as described internationally, is part of centuries-old custom and practice in some jurisdictions. In some jurisdictions and between some states the median line (between banks) is the preferred boundary presumption as may extend from estuaries. Thirdly, easy to map, drawing "turning points" are the solution for a few major rivers such as the St Lawrence River-Great Lakes system.[5]
^"Webster Dictionary". Archived from the original on 2018-06-24. Retrieved 2008-12-25.
^"dictionary.com". dictionary.com. Archived from the original on 9 October 2017. Retrieved 8 October 2017.
^"Merriam-Webster". Merriam-Webster. Archived from the original on 18 May 2017. Retrieved 8 October 2017.
^Garner, James W. (1935). "The Doctrine of the Thalweg as a Rule of International Law". American Journal of International Law. 29 (2): 309–310. doi:10.2307/2190498. ISSN 0002-9300. JSTOR 2190498.
^"C - St. Lawrence River and the Great Lakes" International Boundary Commission
In geography, hydrography, and fluvial geomorphology, a thalweg or talweg (/ˈtɑːlvɛɡ/) is the line or curve of lowest elevation within a valley or watercourse...
resolution was based on the thalweg principle. India supports its stance by citing the thalweg doctrine in international law. The thalweg legal principle states...
name of this mall means thalweg. La Vaguada is a proper name not a common one. However, this mall was built in a former thalweg. 40°28′43″N 3°42′31″W...
active channel topographic forms up to 20 m high, which occur within near-thalweg areas of the main outflow routes created by glacial lake outburst floods...
Cisalpine Republic by the 1801 Treaty of Lunéville, and drawn up along the thalweg of the lower Adige river. Unlike the previous 1,100-year-old republic,...
channel, is the thalweg or thalweg line. It is typically designated the borderline when rivers are used as political borders. The thalweg hugs the outer...
it meets the Fly River flowing east, then a short curve of the river's thalweg to where it meets the 141°01'10" E meridian flowing west, then southwards...
accompli Frozen conflict Israeli–Palestinian conflict Status quo ante bellum Thalweg Territorial disputes in the South China Sea Territorial disputes in the...
Manzanares' riverbanks, near the latter's confluence with the Fuente Castellana thalweg in the south of the city. The Monte de El Pardo (a protected forested area...
Netherlands replied with a formal claim to the New River Triangle, but with a thalweg boundary in the Courantyne River (the latter position has never been repeated...
the International Court of Justice (ICJ) that the border runs down the thalweg of the river immediately north (not south) of the island. The island is...
issue after the break-up of Yugoslavia. Serbia holds the opinion that the thalweg of the Danube valley and the centre line of the river represents the international...
up the former thalweg of the Chattahoochee, then with Alabama runs due west along 31°N to the Perdido River, then south along its thalweg to the Gulf via...
territorial dispute concerned which channel of the Chobe River was the thalweg, the bona fide international boundary. This was important, as, depending...
bifurcation River channel migration River mouth Slip-off slope Stream pool Thalweg Bedrock river Canyon Knickpoint Plunge pool Bedforms Ait Antidune Dune...
an explicit treaty provision, the central line of the main channel—the Thalweg principle—provided a legal basis for delimiting the boundary in the two...
native grassland strip of green belt. It is generally installed in the thalweg, the deepest continuous line along a valley or watercourse, of a cultivated...
continues in a more conventional way in the middle of the main channel (thalweg) of the Delaware River. To the west, a portion of the arc extends past...
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