ENGLISH

Uzboy and the Aral regressions: A hydrological approach

By Letolle R.

Book information

Language
english
Format
PDF
Filesize
2 MB (2234976 bytes)
Pages
\12
Topic
Geology
Library
twirpx
Time added
2017-08-07 07:01:42
Горно-геологическая отрасль;Научные горно-геологич

Description

Quaternary International 173-174 (2007) 125-136The Uzboy is an enigmatic dry river channel in Western Central Asia. This 750km long channel regained life on several occasions afterthe end of the Wu¨ rm glaciation (about 11,000 years BC), due to climatic episodes more humid than today and/or human deviations ofthe main course of the Amu Darya towards the west. Much of the Amu annual flow was diverted elsewhere. The discharge of Amu Daryain the Zaunguz desert accounts for the tens of km3 of water the Uzboy was unable to convey away.It appears reasonable to conclude that the Amu Darya could not carry more than 20–30km3 per year to the Sary Kamysh lake, due tothe channel cross-section at Daryalyk and Daudan Darya, at a time when the total water output of Amu Darya to Aral was about60–70km3 per year.

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