Assessment of spatial and temporal dynamics of the Selenga River channel deformation

4th School-Seminar of Young Russian Scientists "Problems of Sustainable Regional Development", dedicated to the 70th anniversary of Academician of the Russian Academy of Sciences Arnold Kirillovich Tulokhonov

自然科学（总论）

Tsydypov, B.Z.^1 ; Ayurzhanaev, A.A.^1 ; Chernykh, V.V.^1 ; Gurzhapov, B.O.^1 ; Zh Garmaev, E.^1

Baikal Institute of Nature Management SB RAS, Ulan-Ude, Russia^1

关键词: Automated interpretation;    Channel classification;    Comparative analysis;    Multi-temporal data;    Practical importance;    Protective structures;    Qualitative and quantitative assessments;    Spatiotemporal patterns;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/320/1/012029/pdf
DOI  :  10.1088/1755-1315/320/1/012029

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

The identification of spatio-temporal patterns of transformation of the Selenga river channel is an important task, which has both theoretical and practical importance. Dynamic seasonal and long-term changes in the levels and flow rates of water in the Selenga river, as well as significant kinetic energy of the flow cause a high intensity of channel processes, which must be taken into account in the construction and operation of hydrotechnical and shore protection, as well as other protective structures. A retrospective comparative analysis of the dynamics of channel deformation based on the thematic automated interpretation of Landsat satellite multi-temporal data is carried out. This, together with engineering hydrological calculations, allowed us to perform a qualitative and quantitative assessment of the results of the long-term manifestation of natural processes in a vast area occupying part of the Selenga valley from the state border to its delta. In the course of work, for the first time a map of the Selenga river channel dynamics. Areas with different types of channel stability have been identified, the channel classification has been carried out into meandering, straight and braided sections.