Meeting of Waters: Difference between revisions
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{{Short description|Natural phenomonen of the Rio Negro and Solimões River}} |
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{{Other uses|Meeting of the Waters (disambiguation)}} |
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[[File:Encontro das Águas - Manaus.jpg|thumb|220px|right|Aerial view of the Meeting of Waters.]] |
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The '''Meeting of Waters''' ({{langx|pt|Encontro das Águas}}) is the [[confluence]] between the dark ([[Blackwater river|blackwater]]) [[Rio Negro (Amazon)|Rio Negro]] and the pale sandy-colored ([[Whitewater river (river type)|whitewater]]) [[Amazon River]], referred to as the [[Solimões River]] in [[Brazil]] upriver of this confluence. For {{convert|6|km|mi|abbr=on}} the waters of the two rivers run side by side without mixing. This phenomenon is one of the main [[tourist]] attractions of [[Manaus]]. The river then flows another {{convert|60|km|mi|abbr=on}} before mixing fully, but the phenomenon persists incompletely for another {{convert|30|km|mi|abbr=on}}.<ref name=Manaus>{{cite web |url=http://www.visitbrasil.com/attractions/meeting-of-waters.html |title=Spectacular confluence of the Negro and Solimões rivers, whose waters are separated for several miles | publisher= Visit Brazil |accessdate=2020-01-25|language=English}}</ref> |
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[[File:Meeting of waters from the air manaus brazil.JPG|thumb|200px|right|Aerial view of The Meeting of Waters looking west, just after departure from [[Manaus]], [[Brazil]].]] |
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The '''Meeting of Waters''' ({{lang-pt|Encontro das Águas}}) is the [[confluence]] between the [[Rio Negro (Amazon)|Rio Negro]], a river with dark ([[blackwater river|almost black-looking]]) water, and the sandy-colored [[Amazon River]] or [[Rio Solimões]], as the upper section of the [[Amazon River|Amazon]] is known in [[Brazil]] upriver of this confluence. For 6 km (3.7 mi) the two rivers' waters run side by side without mixing. It is one of the main [[tourist]] attractions of [[Manaus]], Brazil. The same also happens near [[Santarém, Pará]] with the Amazon and [[Tapajós]] rivers. This phenomenon occurs in other regions of the world with differing characters of rivers. |
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This phenomenon is due to the differences in temperature, speed and |
This phenomenon is due to the differences in temperature, speed, and amount of dissolved [[sediment]]s in the waters of the two rivers. The Rio Negro flows at near {{convert|2|km/h|mi/h|abbr=on}} at a temperature of {{convert|28|C|F|abbr=on}}, while the Rio Solimões flows between {{convert|4|and(-)|6|km/h|mi/h|abbr=on}} at a temperature of {{convert|22|C|F|abbr=on}}.<ref name=Manaus/> The light-colored water is rich with sediment from the Andes Mountains, whereas the black water, running from the Colombian hills and interior jungles, is nearly sediment-free and colored by decayed leaf and plant matter.<ref>{{cite web |title=Meeting of the Waters |url=https://earthobservatory.nasa.gov/images/79111/meeting-of-the-waters |website=earthobservatory.nasa.gov |publisher=NASA |accessdate=9 November 2020 |language=en |date=7 September 2012}}</ref> |
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<ref>{{cite web |url=http://www.manaus.am.gov.br/turismo/atrativos-naturais/encontro-das-aguas/ |title=Encontro das Águas:Uma das mais espetaculares atrações turísticas da Cidade de Manaus | publisher= Municipality of Manaus |date=2007-09-21|accessdate=2008-08-23 |language=Portuguese | archiveurl=https://web.archive.org/web/20080928055024/http://www.manaus.am.gov.br/turismo/atrativos-naturais/encontro-das-aguas |archivedate=2008-09-28}}</ref> |
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Smaller-scale meeting of waters of the Amazon river also occurs in the locations of [[Santarém, Pará|Santarém]] (Brazil), [[Iquitos]] (Peru), [[Puerto Maldonado]] (Peru) and [[Coari]] (Brazil). |
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==See also== |
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* [[Water]] |
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* [[Hydrogen bond]] |
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==References== |
==References== |
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{{Reflist}} |
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{{Commons category|Negro-Amazon confluence}} |
{{Commons category-inline|Negro-Amazon confluence}} |
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{{Authority control}} |
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[[Category:Rivers of Amazonas (Brazilian state)]] |
[[Category:Rivers of Amazonas (Brazilian state)]] |
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Latest revision as of 03:01, 2 November 2024
The Meeting of Waters (Portuguese: Encontro das Águas) is the confluence between the dark (blackwater) Rio Negro and the pale sandy-colored (whitewater) Amazon River, referred to as the Solimões River in Brazil upriver of this confluence. For 6 km (3.7 mi) the waters of the two rivers run side by side without mixing. This phenomenon is one of the main tourist attractions of Manaus. The river then flows another 60 km (37 mi) before mixing fully, but the phenomenon persists incompletely for another 30 km (19 mi).[1]
This phenomenon is due to the differences in temperature, speed, and amount of dissolved sediments in the waters of the two rivers. The Rio Negro flows at near 2 km/h (1.2 mph) at a temperature of 28 °C (82 °F), while the Rio Solimões flows between 4 and 6 km/h (2.5–3.7 mph) at a temperature of 22 °C (72 °F).[1] The light-colored water is rich with sediment from the Andes Mountains, whereas the black water, running from the Colombian hills and interior jungles, is nearly sediment-free and colored by decayed leaf and plant matter.[2]
Smaller-scale meeting of waters of the Amazon river also occurs in the locations of Santarém (Brazil), Iquitos (Peru), Puerto Maldonado (Peru) and Coari (Brazil).
References
[edit]- ^ a b "Spectacular confluence of the Negro and Solimões rivers, whose waters are separated for several miles". Visit Brazil. Retrieved 2020-01-25.
- ^ "Meeting of the Waters". earthobservatory.nasa.gov. NASA. 7 September 2012. Retrieved 9 November 2020.
Media related to Negro-Amazon confluence at Wikimedia Commons
3°8′12″S 59°54′17″W / 3.13667°S 59.90472°W