Buotama
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Buotama Буотама Botoma, Ботома |
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| Data | ||
| Water code | RU : 18030500112117200035581 | |
| location | Sakha Republic (Yakutia) ( Russia ) | |
| River system | Lena | |
| Drain over | Lena → Laptev Lake | |
| source | in the Aldan highlands 59 ° 57 ′ 50 ″ N , 124 ° 33 ′ 42 ″ E |
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| Source height | approx. 500 m | |
| muzzle | in the Lena coordinates: 61 ° 15 ′ 56 " N , 128 ° 45 ′ 57" E 61 ° 15 ′ 56 " N , 128 ° 45 ′ 57" E |
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| Mouth height | 93 m | |
| Height difference | approx. 407 m | |
| Bottom slope | approx. 0.97 ‰ | |
| length | 418 km | |
| Catchment area | 12,600 km² | |
| Discharge at the Brolog A Eo gauge : 12,200 km² Location: 39 km above the mouth |
MQ 1936/1994 Mq 1936/1994 |
39.7 m³ / s 3.3 l / (s km²) |
| Left tributaries | Talalach | |
| Right tributaries | Charyja-Jurjach, Kujuda | |
 Course of the Buotama (Буотама) in the catchment area of the Lena (yellow) |
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The Buotama ( Russian and Yakut Буотама ; also Botoma , Ботома ) is a 418 km long right tributary of the Lena in the Sakha Republic (Yakutia) in Russia .
The Buotama rises in the northern part of the Aldan highlands , about 160 km north-northwest of the city of Aldan . Then it flows over their entire length by a relatively narrow valley at the northern edge of the plateau and the south of the Lena plateau in east-northeast direction approximately parallel to the Lena, in which they finally about 100 km southwest of the Republic capital Jakutsk opens.
The catchment area of the river covers 12,600 km². The longest tributaries are the Talalach (57 km), which flows into the upper reaches from the left, and the Charyja-Jurjach (60 km) and Kujuda (50 km), which flow further downstream from the right.
The runoff 39 km above the estuary is an annual mean of 39.7 m³ / s, with a maximum monthly mean of 250 m³ / s in May. The river freezes over from October / November to late April / early May. The mean discharge in March is only 1.76 m³ / s.
Individual evidence
- ↑ Soviet General Staff Map 1: 200,000. Sheet O-51-V. Edition 1989
- ↑ Soviet General Staff Map 1: 200,000. Sheet P-52-XVII, XVIII. Edition 1984
- ↑ a b c d Buotama in the State Water Register of the Russian Federation (Russian)
- ↑ a b c d Article Buotama in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ a b Buotama at the Brolog gauge - hydrographic data at R-ArcticNET