The Eastern Arctic Seas Encyclopedia

2016 Edition
| Editors: Igor S. Zonn, Andrey G. Kostianoy, Aleksandr V. Semenov

Bykovskaya Protoka (Arm)

Reference work entry
DOI: https://doi.org/10.1007/978-3-319-24237-8_104

Bykovskaya Protoka (arm) – one of the big western arms (protokas) on the mouth part of the Lena. The length is 96 km and flows eastward and past the Neelova Bay, after which flows into the Laptev Sea close to Cape Bykov. The arm appeared as a result of a naturally determined redistribution of the flowoff and the migration of the main binnacle to the east and southeast. B.P. seems to be the youngest arm and occupies the most extreme of the possible positions as its southern shore is already a valley wall. It is formed by Paleozoic rocks, is high (50–100 m), and steep. The arm flows into the bay, the middle part of which forms a stream-mouth bar with large midstream sandbanks. The length of the stream-mouth bar is about 20 km, and the depth on the ridge is 2,2 m. To the left of the B.P., there is Kyuryuelekh-Yuese arm (28 km from the river source), Taras-Yuese (49 km), and Saaynalaakh (72 km). Sinitsina Protoka (arm) flows into the Neelova Bay, and Ispolatova Protoka serves the main continuation of the B.P. lower than Dashka bendway. It was through the B.P. that the first steamer “Lena” reached Yakutsk. This steamer escorted the expedition of A.E. Nordenskiöld (1878–1879) on the “Vega.”

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