Open AccessAltitude regularity of climatic factors in suspended sediments flowing formation of Mountain Rivers
Author(s) -
F.H. Khikmatov,
Gulnora Jumabaeva,
Kosimdjon Rakhmonov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/883/1/012052
Subject(s) - precipitation , snow , environmental science , precipitation types , altitude (triangle) , atmospheric sciences , surface runoff , hydrology (agriculture) , sediment , climatology , air temperature , physical geography , geology , meteorology , geography , ecology , geomorphology , geometry , mathematics , geotechnical engineering , biology
The article addresses the changing role of climatic factors in the formation of the flow of suspended sediments of Mountain Rivers in Central Asia with the height of their pools. For this purpose, multi-factor analysis of the relationship between suspended sediment runoff and climatic factors - atmospheric precipitation of winter and summer seasons and air temperature over summer - has been carried out. The division of atmospheric precipitation takes into account another climatic parameter, namely the type of precipitation - solid and liquid. Under winter are taken the amounts of precipitation falling from October to March, mainly in solid form, and behind summer - precipitation of warm half-year (April-September), which mainly fall in liquid form. It is shown that in rivers of snow-rain and snow types of nutrition paired coefficients of correlation of run-off of suspended sediments both with winter and summer precipitation have a positive sign. On the contrary, with the increase in the average height of the basins, i.e. in the rivers of the snow-ice and ice-ice types, the values of the paired correlation coefficients with the precipitation of winter and summer are low and they are always lower than the values of the paired correlation coefficients with the air temperature.