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STATISTICAL ASSESSMENT OF CHANGES IN HYDROMETEOROLOGICAL PARAMETERS OF THE CHIRCHIK RIVER BASIN

Field of Science:Environmental Science (miscellaneous)Nature and Landscape ConservationWater Science and TechnologyGeography, Planning and Development
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Hydrometeorology and environmental monitoring

Hydrometeorology and environmental monitoring

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ARTICLE ANNOTATION

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In this paper, the hydrometeorological indicators of the Chirchik River basin were statistically compared for two different periods. The analysis was based on long-term observation data from the Oygaing, Chimgan, Pskem, and Sukok meteorological stations, as well as the Khudoydodsay, Mullala, Khojikent, and Gazalkent hydrological posts. Differences in mean values and p-values were evaluated using a two-sample t-test. The results showed that air temperature increased statistically significantly at all stations, especially during the winter–spring period (p<0.05). A pronounced increase in temperature was observed in March at the Pskem and Sukok stations, in March–May at the Chimgan station, and in January, February, March, May, June, and September at the Oygaing station. Atmospheric precipitation increased at several stations in February and November; however, a decreasing trend was recorded in some spring months. Water discharge increased at a number of hydrological posts during the spring–early summer period, whereas in summer a decrease or enhanced variability was observed. Overall, the results indicate an increasing influence of global warming processes on the hydrometeorological regime of the region. This highlights the need to improve the efficiency of water resources management and to strengthen adaptation measures during the spring–summer season.

AUTHORS

Science ID: MJZ-0525-0021

Science ID: FTN-0225-0019

Tags

# air# temperature# atmospheric# precipitation# water# discharge# coefficient# of# variation# standard# deviation# statistical# test# t-test# p-value

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