Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2026, V. 23, No. 1, pp. 245-259
Analysis of daily flooded areas in Volga delta during flood periods based on remote sensing data
1 Water Problems Institute RAS, Moscow, Russia
Accepted: 17.10.2025
DOI: 10.21046/2070-7401-2026-23-1-245-259
The flood periods with different water content in the Volga delta (VD) were investigated. The Volga delta is of great economic importance, it is actively used in agriculture, fishery, communal services, water transport. Also, it is a highly productive spawning area. We calculated daily flooded areas of VD regions for flood periods of different water content with high accuracy for each year from 2013 to 2016. We used a large amount of satellite remote sensing data (from Landsat-7, Landsat-8, Sentinel-2). We made comparative analysis of daily flooded areas of VD regions based on the flooding characteristics (dates of flood period, maximum flooded area, duration of flood, duration of flood phases, i.e. flood rising period, flood recession period, flood stabilization period, maximum daily average water levels in the watercourses) for flood periods of different water content and for different VD regions. We analyzed how different VD regions with various landscape and hydrographic features are flooded during the flood periods of different water content. The results of the work can be used to identify spatial-temporal patterns and distinctive features of floods with different water content in VD regions. All the flood characteristics except duration of flood stabilization and flood recession periods are positively related to water content of the flood. In regions with dense network of small watercourses of different sizes, during flood period, flooded area is larger than in regions with large watercourses with wide deep riverbeds. The use of daily flooded areas of VD regions calculated with high accuracy can help determine the water balance of VD regions.
Keywords: flood period, Volga delta, flooded areas of delta regions, remote sensing data
Full textReferences:
- Alekseevskii N. I., Afanas’eva N. A., Gorelets O. V., Kir’yanov S. V., Korotaev V. N., Lupachev Yu. V., Mikhailov V. N., Polonskii V. F., Serebrennikova N. A., Simonova O. A., Skripunov N. A., Filippov Yu. G., Ust’evaya oblast’ Volgi: gidrologo-morfologicheskie protsessy, rezhim zagryaznyayushchikh veshchestv i vliyanie kolebanii urovnya Kaspiiskogo morya (The Volga River Mouth: Hydrological and morphological processes, regime of pollutants and fluctuations of the level of the Caspian Sea), Moscow: GEOS, 1997, 278 p. (in Russian).
- Baydin S. S., Stok i urovni del’ty Volgi (Runoff and water levels of the Volga delta), Moscow: Gidrometeoizdat, 1962, 337 p. (in Russian).
- Baydin S. S., The flooding of the Volga delta under conditions of regulated river runoff, Trudy Gosudarstvennogo okeanograficheskogo instituta, 1967, Iss. 89, pp. 67–71 (in Russian).
- Bolgov M. V., Krasnozhon G. F., Shatalova K. Yu., Computer hydrodynamic model of the Lower Volga, Vodnye resursy, 2014, V. 41, No. 1, pp. 10–23 (in Russian), DOI: 10.7868/S0321059614010040.
- Bolgov M. V., Shatalova K. Yu., Gorelits O. V., Zemlyanov I. V., Water-ecological problems of Volga-Akhtuba floodplain, Ekosystems: Ekology and dynamics, 2017, V. 1, No. 3, pp. 15–37 (in Russian).
- Bukharitsin P. I., Polonskiy V. F., Ostroumova L. P., Ustoichivoe vodoobespechenie Zapadnykh podstepnykh il’menei del’ty Volgi (Sustainable water supply of Western steppe ilmens of the Volga delta), Beau Bassin: Lambert Academic Publishing, 2017, 127 p. (in Russian).
- Valov M. V., Barmin A. N., Current trends of changes of the hydrological conditions in the Volga delta, Mezhdunarodnaya nauchno-prakticheskaya konferentsiya “Regional’nye problemy vodopol’zovaniya v izmenyayushchikhsya klimaticheskikh usloviyakh”, Ufa: Aehterna, 2014, pp. 96–99 (in Russian).
- Gorelits O. V., Polonskiy V. F., The flooding of the Volga delta and effects of changes of the level of the Caspian Sea on the flooding, Meteorologiya i gidrologiya, 1997, No. 10, pp. 85–97 (in Russian).
- Zilitinkevich N. S. (2024a), Methods of calculation of daily flooded areas in the Volga delta during the flood periods based on the remote sensing data, Issledovanie Zemli iz kosmosa, 2024, No. 3, pp. 78–93 (in Russian), DOI: 10.31857/S0205961424030065.
- Zilitinkevich N. S. (2024b), A review of studies on the assessment of flooded areas and water balance in the Volga delta during the flood periods, Issledovanie Zemli iz kosmosa, 2024, No. 5, pp. 82–110 (in Russian), DOI: 10.31857/S0205961424050069.
- Polonskiy V. F., Landscape zoning of the Volga delta in view of economic development and features of the flooding, Tezisy dokladov Vserossiiskogo kongressa rabotnikov vodnogo hozyaistva (Abstracts of the reports of the All-Russia Congress of Water Resources Workers), Moscow, 2003, pp. 209–210 (in Russian).
- Polonskiy V. F., Gorelits O. V., Assessment of the regulating role of the Volga delta during a flood, In: Gidrometeorologicheskie aspekty problemy Kaspiiskogo morya i ego basseina, Saint Petersburg: Gidrometeoizdat, 2003, pp. 65–77 (in Russian).
- Polonskiy V. F., Ostroumova L. P., New water-balance model of the Volga delta as a tool for optimal regulation of water regime, Ekologicheskie sistemy i pribory, 2005, No. 12, pp. 37–48 (in Russian).
- Polonskiy V. F., Ostroumova L. P., Processes of flooding, assessment and calculation of the dynamics of water balance components of the Volga delta during a flood, Materialy mezhdunarodnoi nauchnoi konferentsii “Izmenenie klimata i vodnogo balansa Kaspiiskogo regiona” (Proc. Intern. Scientific Conf. “Climate Change and Water Balance of the Caspian Region”), Astrakhan, 2011, pp. 119–127 (in Russian).
- Rybak V. S., Losses of the water runoff in Volga-Akhtuba floodplain and the Volga delta, Trudy Gosudarstvennogo okeanograficheskogo instituta, 1973, V. 116, pp. 82–96 (in Russian).
- Shinkarenko S. S., Bartalev S. A., Berdengalieva A. N., Vypritskii A. A., Dynamics of water bodies areas in the Western Ilmen Lake Region of the Volga Delta, Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2021, V. 18, No. 4, pp. 285–290 (in Russian), DOI: 10.21046/2070-7401-2021-18-4-285-290.
- Shinkarenko S. S., Bartalev S. A., Bogodukhov M. A. et al., The Lower Volga floodplain classification based on long-term hydrological and remote sensing data, Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2023, V. 20, No. 3, pp. 119–135 (in Russian), DOI: 10.21046/2070-7401-2023-20-3-119-135.
- Buma W. G., Lee L. I., Seo J. Y., Recent surface water extent of Lake Chad from multispectral sensors and GRACE, Sensors, 2018, V. 18, Article 2082, 24 p., DOI: 10.3390/s18072082.
- Du Y., Zhang Y., Ling F. et al., Water bodies’ mapping from Sentinel-2 imagery with Modified Normalized Difference Water Index at 10-m spatial resolution produced by sharpening the SWIR band, Remote Sensing, 2016, V. 8, Article 354, 19 p., DOI: 10.3390/rs8040354.
- ENVI User’s Guide. ENVI Version 4.7 and 4.7 SP1. Dec. 2009 Ed. ITT Visual Information Solutions Corporation, USA, 2009.
- Kwang C., Osei E. M., Jnr, Amoah A. S., Comparing of Landsat 8 and Sentinel 2A using water extraction indexes over Volta River, J. Geography and Geology, 2017, V. 10, 7 p., DOI: 10.5539/jgg.v10n1p1.
- Szabó S., Gácsi Z., Balázs B., Specific features of NDVI, NDWI and MNDWI as reflected in land cover categories, Acta Geographica Debrecina. Landscape and Environment Ser., 2016, V. 10, pp. 194–202, DOI: 10.21120/LE/10/3-4/13.
- Xu H., Modification of normalised difference water index (NDWI) to enhance open water features in remotely sensed imagery, Intern. J. Remote Sensing, 2006, V. 27, No. 14, pp. 3025–3033, DOI: 10.1080/01431160600589179.