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STABLE ISOTOPES IN ATMOSPHERIC PRECIPITATION OF TASHKENT CITY

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The article presents the findings of a study of the of deuterium (2Н) and oxygen- 18 (18О) stable isotopes in atmospheric precipitation collected during 2022-2023 at the meteorological station Tashkent-Observatory in Tashkent city. It was revealed that during the study period the values of δ2Н in precipitation were within the range of +16.41÷-122.73‰, and the values δ18О were between + 1.95÷-16.34‰, the maximum values were observed in April 2022, the minimum values - in January 2022. A local meteoric water line (LMWL) for Tashkent was established as δ2H = 7.33 · δ 18O + 5.27‰, reflecting regional precipitation characteristics. The Tashkent-Observatory meteorological station is part of the Global Network of Isotopes in Precipitation (GNIP), a collaborative effort between the International Atomic Energy Agency and the World Meteorological Organization. These results provide valuable insights for understanding atmospheric circulation, water resources formation, and role of stable isotopes in hydrological processes.

AUTHORS

S.Isabekov

Научно-исследовательский гидрометеорологический институт

G.Umirzakov

Научно-исследовательский гидрометеорологический институт

B.Nishonov

Научно-исследовательский гидрометеорологический институт

L.Saidmakhmudova

Научно-исследовательский гидрометеорологический институт

M.Nurmatov

Научно-исследовательский гидрометеорологический институт

Tags

# precipitation# атмосферные осадки# атмосфера ёғинлари# Тошкент.# Ташкент.# изотоп гидрологияси# маҳаллий метеорик сув чизиғи# изотопная гидрология# isotope hydrology# local meteoric water line# стабил изотоплар# дейтерий# δ2Н# кислород-18# δ18О# стабильные изотопы# локальная линия меторных вод# stable isotopes# deuterium# oxygen-18

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