Purpose: to develop and test a method for constructing a digital relief model for the small river watershed using AutoCAD Civil 3D software, as well as to conduct a spatial analysis of the hydrological characteristics.
Materials and methods. The object of the study was the basin of the small Loknash River (Moscow Region) with a length of 14 km. The initial data were topographic maps. To create a digital relief model, the AutoCAD Civil 3D automated design and drawing system was used.
Results. In the course of research, a methodology for creating a digital relief model, including: 1) converting contours into vector form and establishing an elevation point for them; 2) creating a digital relief model using the surface generation module; 3) determining the watershed area; 4) creating thematic maps of elevation and slopes differences of the watershed territory, watershed areas, runoff directions, etc., was developed. As a result of the research, the boundaries of the watershed area for the small Loknash River basin, based on the obtained digital relief model, were determined – 2477 hectares, the types of watersheds were classified and a slope map, a map of watercourse directions and a longitudinal profile of the river were constructed. Four zones were determined by the slope of the river bed, for which the flow velocities were calculated using the Chezy formula: from 0.25 to 0.80 m/s with an average value of 0.40 m/s. Areas with increased slopes, most susceptible to erosion and diffuse washout, were identified.
Conclusions. The developed approach made it possible to obtain more accurate spatial data compared to space imagery data used to determine watershed areas in GIS. The proposed method for creating a digital relief model in AutoCAD can be effectively applied for analysis of small river basins, which provides justification for reclamation measures, assessment of hydrological risks and planning for sustainable environmental engineering.
doi: 10.31774/2712-9357-2025-15-2-174-190
digital relief model, small river, river basin, watershed area, terrain slope, longitudinal river profile
Iskrichev D. S., Bezborodov Yu. G. Method for creating a digital relief model for the small river watershed area. Land Reclamation and Hydraulic Engineering. 2025;15(2):174–190. (In Russ.). https://doi.org/10.31774/2712-9357-2025-15-2-174-190.
1. Antipov A.N., Korytny L.M., 2012. Sibirskaya shkola landshaftnoy gidrologii. Geografo-gidrologicheskie issledovaniya [Siberian school for landscape hydrology. Geographical and hydrological research]. Voprosy geografii [Issues in Geography], no. 133, pp. 32-47, EDN: TLYUWX. (In Russian).
2. Chumachenko A.N., Khvorostukhin D.P., Morozova V.A., 2018. Postroenie gidrologicheski-korrektnoy tsifrovoy modeli rel'yefa (na primere Saratovskoy oblasti) [Construction of a hydrologically correct digital relief model (using the Saratov region as an example)]. Izvestiya Saratovskogo universiteta. Novaya seriya. Seriya nauki o Zemle [Bullet. of Saratov University. New Series. Earth Science Series], vol. 18, no. 2, pp. 104-109, DOI: 10.18500/1819-7663-2018-18-2-104-109, EDN: OTINYV. (In Russian).
3. Cline T.J., Molinas A., Julien P.Y., 1989. An Auto-Cad-Based Watershed Information System for the Hydrologic Model HEC-11. Journal of the American Water Resources Association, vol. 25, iss. 3, pp. 641-652, DOI: 10.1111/J.1752-1688.1989.TB03102.X.
4. Kandrashkin A.A., 2024. Postroenie karty ispol'zovaniya zemel' basseyna maloy reki s primeneniem GIS-tekhnologiy [Construction of a land use map of a small river basin using GIS technologies]. Pokolenie budushchego: vzglyad molodykh uchenykh – 2024: sb. nauch. st. 13-y Mezhdunarodnoy molodezhnoy nauchnoy konferentsii [Generation of the Future: a View of Young Scientists – 2024: collection of scientific articles of the 13th International Youth Scientific Conference]. In 4 vol., vol. 4. Kursk, University Book Publ., pp. 19-22, EDN: IEVTFA. (In Russian).
5. Iskrichev D.S., Bezborodov Yu.G., Rednikov S.N., 2024. Otsenka zagryazneniya pochv i gruntovykh vod maloy reki Loknash v Moskovskoy oblasti [Assessment of soil and groundwater pollution in the small Loknash River in the Moscow Region]. Prirodoobustroystvo [Environmental Engineering], no. 1, pp. 25-31, DOI 10.26897/1997-6011-2024-1-25-31, EDN: LRTBRL. (In Russian).
6. Chymyrov A.U., Chontoev D.T., Zhakeev B.M., 2020. Sozdanie tsifrovykh modeley rel'yefa na osnove otkrytykh dannykh distantsionnogo zondirovaniya zemli pri utochnenii granits basseynov rek v kotlovine ozera Issyk-Kul' [Creation of the digital relief models based on open remote sensing data for improvement the borders of river basins in the Issyk-Kul Lake cavity]. Interkarto. Intergis, vol. 26, no. 2, pp. 349-365, DOI 10.35595/2414-9179-2020-2-26-349-365, EDN: OZYPAW. (In Russian).
7. Shevchenko G.G., Gura D.A., 2017. Sozdanie krupnomasshtabnogo topograficheskogo plana v AUTOCAD i AUTOCAD CIVIL 3D [Creation of the large-scale topographic plan in AUTOCAD and AUTOCAD CIVIL 3D]. Luchshaya nauchnaya stat'ya 2016: sb. st. pobediteley V mezhdunarodnogo nauchno-prakticheskogo konkursa [Best Scientific Article 2016: Collection of Articles of the Winners of the V International Scientific and Practical Competition]. Penza, Science and Education Publ. (IP Gulyaev G. Yu.), pp. 43-50, EDN: XIAZBH. (In Russian).
8. Naumov V.A., Kochkareva A.S., 2024. Obrabotka rezul'tatov inzhenerno-gidrologicheskikh izyskaniy v basseyne malogo vodotoka (na primere reki Goluboy) [Processing of the engineering and hydrological survey results in the small watercourse basin (using the example of the Blue River)]. IV Mezhdunarodnyy Kosyginskiy Forum «Problemy inzhenernykh nauk: formirovanie tekhnologicheskogo suvereniteta». Mezhdunarodnyy nauchno-tekhnicheskiy simpozium «Sovremennye inzhenernye problemy klyuchevykh otrasley ekonomiki strany»: sb. nauch. tr. [IV International Kosygin Forum “Problems of Engineering Sciences: Formation of Technological Sovereignty”. International Scientific and Technical Symposium “Modern Engineering Problems of Key Branches of the Country's Economy”]. Moscow, A. N. Kosygin Russian State University (Technologies. Design. Art), vol. 1, pp. 94-97, EDN: TPXIED. (In Russian).
9. Mazurkin P.M., Georgieva Ya.O., 2020. Veyvlet-analiz raspredeleniya vysoty ot ust'ya v kharakternykh tochkakh prodol'nogo profilya rusla maloy reki Irovka [Wavelet analysis of height distribution at characteristic points of the longitudinal profile of the channel of the small Irovka River]. Uspekhi sovremennogo yestestvoznaniya [Advances in Current Natural Sciences], no. 1, pp. 31-37, DOI 10.17513/use.37318, EDN: ZGHXSK. (In Russian).
10. Manaev E.F., Fatkhutdinova R.Sh., 2016. Primenenie tsifrovoy modeli rel'yefa dlya izucheniya rechnykh basseynov [Application of a digital elevation model for studying river basins]. Vestnik magistratury [Bullet. of the Magistracy], no. 11-1(62), pp. 4-7, EDN: XIDMAX. (In Russian).
