APPLICATION OF LASER SCANNING METHODS AND GEOFORMATION SYSTEMS FOR STUDYING THE GULLY EROSION
Abstract
The use of laser scanning methods and GIS technology while studying the gully erosion provides the accurate morphometric characteristics and quantitative data on the rate of ravine propagation. For the first time laser scanning methods and remote sensing data were used to study the development of gully erosion in the mountains of Zhetysu Alatau. The research was carried out within a key area to the south of the Sary Ozek village in the Kerbulak district (the Almaty Region, Republic of Kazakhstan), in the western part of the Zhetysu Alatau Mountains. The semi-stationary observations and the study of gully erosion on the eastern slopes of the Malaysar Range were performed in autumn periods from 2012 to 2017. The results show that the territory’s environment is particularly supportive for the development of gully erosion. The ravines of the area under study are predominantly bottom and sometimes sloping, with upper and deep parts growing due to fluvial processes. The results of field and in-office studies are presented. Threedimensional pictures of ravines are produced in the form of point clouds, where each point has exact x, y and z coordinates for reliable observation of the dynamics of ravine development. The factors influencing the development of gully erosion are studied; the morphometric characteristics of ravines obtained from the remote sensing data are presented.
About the Author
E. E. Khalykov
Satpaev Kazakh National Research Technical University.
Kazakhstan
PhD doctoral student; Institute of Geography, Laboratory of Geomorphology and GIS Mapping, Scientific Researcher.
Kazakhstan
PhD doctoral student; Institute of Geography, Laboratory of Geomorphology and GIS Mapping, Scientific Researcher.
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Review
For citations:
Khalykov E.E. APPLICATION OF LASER SCANNING METHODS AND GEOFORMATION SYSTEMS FOR STUDYING THE GULLY EROSION. Vestnik Moskovskogo universiteta. Seriya 5, Geografiya. 2018;(5):36-43. (In Russ.)
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