Tatta

The Tatta originates in the eastern slopes of the Lena Plateau and is the 7th longest tributary of the Aldan. It flows roughly northwards across a wide, flat valley marked by permafrost and thermokarst zones.{{Cite journal |url=https://www.researchgate.net/publication/340509121 |doi=10.1615/InterJAlgae.v22.i1.30 |title=Algae of Thermokarst Lakes of the Tatta River Basin (Central Yakutia, Russia) |year=2020 |last1=Pshennikova |first1=E. V. |last2=Kopyrina |first2=L. I. |journal=International Journal on Algae |volume=22 |pages=33–46 }}

The source of the river and the first {{convert|10|km|abbr=on}} of its course lie in the Amga District where the river flows in a northeastern direction, which continues further on across the entire Churapcha District. In its lower course the Tatta bends northwards east of Churapcha town and enters the Tatta District flowing slowly and meandering until its mouth.

The Tatta meets the left side of the Aldan very near the mouth of the Baray on the facing bank, {{convert|271|km|abbr=on}} from its confluence with the Lena.[https://commons.wikimedia.org/wiki/File:Operational_Navigation_Chart_D-7,_6th_edition.jpg 1,000,000 scale Operational Navigation Chart; Sheet D-7][https://water-rf.ru/%D0%92%D0%BE%D0%B4%D0%BD%D1%8B%D0%B5_%D0%BE%D0%B1%D1%8A%D0%B5%D0%BA%D1%82%D1%8B/1910/%D0%A2%D0%B0%D1%82%D1%82%D0%B0 Tatta – Water of Russia]

The main tributaries of the Tatta are the {{convert|58|km|abbr=on}} long Khondu from the right, as well as the {{convert|56|km|abbr=on}} long North Namara and {{convert|80|km|abbr=on}} long Kutalakh from the left.

There are about 2,300 lakes in the Tatta basin. One of them Ytyk-Kyuyol, meaning "sacred lake" in the Yakut language, gives its name to Ytyk-Kyuyol, the seat of the Tatta District. Another important lake in the river basin is Churapcha Lake, a protected area.[http://oopt.aari.ru/oopt/%D0%9E%D0%B7%D0%B5%D1%80%D0%BE-%D0%A7%D1%83%D1%80%D0%B0%D0%BF%D1%87%D0%B0 ООПТ России - Озеро Чурапча]

The Tatta basin has a harsh continental climate, with long, cold winters. The river freezes in October and stays frozen until the second half of May.[https://web.archive.org/web/20080613135237/http://www.nature.ykt.ru/RIAC/Yakutia_geogr/018.htm#%D0%A2%D0%B0%D1%82%D1%82%D0%B0 Nature.ykt]

Compared to other watercourses in Yakutia, the Tatta is not a mighty river. It has a rather feeble water discharge and in dry years the river may dry up in the summer. However, there are years in which it may cause disastrous floods.{{cite journal | url=https://www.sciencedirect.com/science/article/pii/S1873965216300172 | doi=10.1016/j.polar.2016.04.003 | title=Limits of pastoral adaptation to permafrost regions caused by climate change among the Sakha people in the middle basin of Lena River | year=2016 | last1=Takakura | first1=Hiroki | journal=Polar Science | volume=10 | issue=3 | pages=395–403 | bibcode=2016PolSc..10..395T }}

• List of rivers of Russia
• Central Yakutian Lowland

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• [https://www.jstor.org/stable/40316520 Memory and Indigenous Identity in Sakha Republic (Yakutia)]

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Category:Rivers of the Sakha Republic

Category:Central Yakutian Lowland

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