Precipitation in the catchment area of the Votkinsk reservoir: nature, type and temporal variability

7th International Scientific Practical Conference "Modern problems of reservoirs and their catchments"

自然科学（总论）

Pischalnikova, E.V.^1^2 ; Kalinin, N.A.^2 ; Akilov, E.V.^2

Department of Meteorological Forecasts, Perm Center for Hydrometeorology and Environmental Monitoring, 70 Novogayvinskaya Street, Perm

614030, Russia^1

Department of Meteorology and Atmosphere Protection, Perm State University, 15 Bukireva Street, Perm

614990, Russia^2

关键词: Catchment area;    Precipitation intensity;    Solid precipitation;    Temporal variability;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/321/1/012007/pdf
DOI  :  10.1088/1755-1315/321/1/012007

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The type and nature of precipitation in the catchment area of the Votkinsk reservoir are considered with taking into account its hydrological zoning. Intra-annual frequency, duration and intensity of precipitation are shown. It is determined that 321 days are observed with precipitation per year on average. Daily amount does not exceed 1 mm. In the catchment area, widespread and rain precipitations are observed with a frequency of 51 and 53% respectively. The daily duration of precipitation depending on its type was obtained, which equals 4-6 h for rain and mixed precipitations and 8-10 h for solid precipitation. High precipitation intensity is observed in the northern part of the catchment area, where the terrain contributes to the development of cloudiness and an increase in precipitation intensity.