Shallowing of the Svityaz Lake in the context of regional climate change


Keywords: Svitiaz Lake, shallowing, water level, precipitation, evaporation, hydrothermal coefficient

Abstract

The paper analyzes the dynamics of the main climatic indicators in order to reveal the role of regional and local factors in the current changes in the water content of the Svitiaz Lake (NW Ukraine). The current state of study of the water balance of the lake and the factors that form it are estimated. The main trends for changes in the levels and regime of surface water, groundwater and artesian water in the territory of the Shatsk National Nature Park are identified. Quantitative data characterizing long-term and modern changes in water levels in the lake are presented. Shallowing of 2019 is characterized (the lowest water level over the last 50 years, reduction of the water mirror area by 8%). Based on statistical mathematical and cartographic analysis of climatic data provided by 17 meteorological stations in the region the dynamics of average annual, monthly and seasonal precipitation, evaporation and their spatial distribution were estimated. A significant increase in evaporation during the warm period of the year over the last decades (2000-2018) has been revealed. Changes in the amount and mode of precipitation over 2 long-term periods are estimated. The peculiarities of the dynamics of the main meteorological indicators in 2019 (average monthly and average annual air temperatures, relative humidity, precipitation amounts) were separately analyzed. Values of humidity coefficients and hydrothermal coefficients were calculated. The parts of the region with the lowest values of these indicators, including the catchment area of Lake Svityaz, are outlined and visualized on the map. The significant role of evaporation growth was confirmed given the consistent increase in air temperatures over the last 20 years. Given the Svityaz station data it is also calculated the correlation coefficients of water levels in the lake with the same indicators for the period since 1970. During the period of 2000-2018, a significant increase in the dependence of water levels on the hydrothermal coefficient of Selyaninov was established, which may indicate a decrease in the ecological stability of the lake and its increasing vulnerability to climate change.

Author Biographies

Vitalina Fedoniuk
Lutsk National Technical University, Lutsk
Maria Khrystetska
Shatsk National Nature Park, Svityaz
Mykola Fedoniuk
Lutsk National Technical University, Lutsk
Ihor Merlenko
Lutsk National Technical University, Lutsk
Serhiy Bondarchuk
Lutsk National Technical University, Lutsk

References

1. Alokhina, O., Ivantyshyn, O., Korus, M., Koshovyy, V., Popov, M., Rusyn, B. (2018). Influence of natural climatic factors on lakes waters fluctuations in nature protected areas. Environmental safety and natural resources №28(4), 71-81.
2. Bondarchuk, S.P., Bondarchuk, L.F. (2016). Analyz vlyianyia melyoratsyy na pochvy y ekosystemy Shatskoho raiona Volynskoi oblasty Ukrainy [Analysis of the effect of land reclamation on soils and ecosystems of Shatsk district of Volyn region of Ukraine] Natural environment of Polesie: features and prospects of development, Brest, Issue 2. 54-60. (In Russian)
3. Diatel, A, Tsvietova, O, Saidak, R. (2018). Otsenka vlyianyia klymatycheskykh y antropohennykh faktorov na vodoobmen hruntovykh y podzemnykh vod Prypiatskoho Polesia. [Evaluation of the effect of climatic and antropogenic factors on the water exchange of soil and submit tal waters of Pripyat Polissya] Scientific horizons. №2(65). 58-65 (In Russian).
4. Diatel, Oleksandr. (2019) Formuvannia vodoobminu ta yoho prohnozuvannia v umovakh tekhnohenezu na meliorovanykh terytoriiakh Volynskoho Polissia [Formation of water exchange and its forecasting in the conditions of technogenesis in the reclaimed territories of Volyn Polissya]. (PhD Dissertation). Institute of Water Problems and Land Reclamation. Kyiv (In Ukrainian).
5. Fesyuk, V.O, Puhach, S.O, Slashchuk, A.M. et al. (2016). Suchasnyi ekolohichnyi stan ta perspektyvy ekolohichno bezpechnoho stiikoho rozvytku Volynskoi oblasti [Current ecological status and prospects of sustainable development of Volyn region]. VNA, Kyiv (In Ukrainian).
6. Information-analytical system: Geoinformation atlas of the Shatsk Biosphere Reserve (2020). Retrieved from http://atlas.sirel.com.ua/#cemAtlas
7. Krakovska,S.V, Palamarchuk, L.V., Gnatiuk, N.V., Shpytal, Т.M., Shedemenko, I.P. (2017). Zminy polia opadiv v Ukraini u 21 st. za danymy ansambliu rehionalnykh klimatychnykh modelei [Changes in precipitation distribution in Ukraine for the 21st century based on data of regional climate model ensemble]. Geoinformatika. № 4 (64). 62-74. (in Ukrainian).
8. Litopys pryrody Shatskoho NPP. (2020). [Chronicles of nature of Shatsk National Nature Park]. (Book 32). Svityaz (In Ukrainian).
9. Ozero Svitiaz: suchasnyi pryrodno-hospodarskyi stan ta problemy (2008). [Svityaz Lake: Current Natural and Economic Status and Problems]. Lutsk. (In Ukrainian)
10. Panasyuk, V. V., Yurchuk, P. V., Koshovyy,V. V., Muravskyy, L.I., et al. (2012). Systema kompleksnoho ekolohichnoho monitorynhu pryrodnoho seredovyshcha Shatskoho natsionalnoho pryrodnoho parku [System of complex ecological monitoring of the Shatsk National Natural Park natural environment]. Nature of Western Polesie
and surrounding territories. № 9. 305-313. (In Ukrainian).
11. Romashchenko, M., Bakhmachuk, Yu. (Ed.) (2004). Formuvannia rezhymu pryrodnykh vod raionu Shatskykh ozer v suchasnykh umovakh [Formation of the natural water regime of the Shatsk lakes in modern conditions]. Kyiv (In Ukrainian).
12. Shedemenko, I.P., Krakovska, S.V., Gnatiuk, N.V. (2012). Veryfikatsiia danykh Yevropeiskoi bazy E-OBS shchodo pryzemnoi temperatury povitria ta kilkosti opadiv u administratyvnykh oblastiakh Ukrainy [Verification of surface temperature and precipitation from European gridded data set E-OBS for administrative regions in Ukraine].
Proceedings of Ukrainian Hydrometeorological Research Institute, 262. 71-90. (in Ukrainian)
13. Tarasyuk, F. P., Tarasyuk, N. A. (2017). Zminy temperatury povitria na terytorii Shatskoho natsionalnoho pryrodnoho parku [Change of air temperature on the territory of Shatsk National Natural Park]. Nature of Western Polesie and surrounding territories. № 14. 29-33. (In Ukrainian)
14. Tarasyuk, Nina, Hanushchak, Mаryana. Rezhym atmosfernoho zvolozhennia gruntiv Volyni v umovakh suchasnoho klimatu. (2017). [Mode of atmospheric connection of soil Volynes in the modern climate conditions]. Visnyk of the Lviv University, Geography. Issue 51. 322–330. (In Ukrainian)
15. Volyn Regional State Administration (2019) Meeting of the Commissioners of Ukraine and the Republic of Belarus in the framework of cooperation on transboundary waters. Retrieved from https://voladm.gov.ua/new/narada-upovnovazhenih-ukrayini-tarespubliki-bilorus-u-ramkah-spivpraci-na-transkordonnih-vodah1]. (in Ukrainian).
16. Xu, C.-Y., Singh, V.P. (2001). Evaluation and generalization of temperature-based methods for calculating evaporation. Hydrological Processes 15. 305–319.
17. Xu, H. (2006). Modification of normalised difference water index (NDWI) to enhance open water features in remotely sensed imagery. International journal of remote sensing, 27(14), 3025-3033.
18. Yatsyuk, M.V., Sydorenko, O.O., Voropai, H.V., Nechai, O.M., Kolomiets, S.S., Tsvietova O.V., Turaeva O.V. (2019). Naukove obgruntuvannia kontseptsii prohramy zberezhennia Shatskoho poozeria. [Scientific substantiation of the concept of the Shatsk Lakes Conservation Program]. Report of Institute of Water Problems and Land Reclamation, Kyiv. (In Ukrainian)
19. Zaleskyi, I. I. 2014. Hidrodynamichni osoblyvosti terytorii Shatskoho poozeria ta prylehlykh raioniv. [Hydrodynamic features of the Shatsk lakes teritory and adjoining districts]. Bulletin of the National university of water and environmental engineering. Agricultural Sciences. Vol 2(66). 59-67. (In Ukrainian).
20. Zaleskyi, I. Shatske poozeria. Heolohichna budova ta hidroheolohichni umovy (2014). [Shatsk Lake District. Geological structure and hydrogeological conditions]. Vol. 1. Eastern European National University, Lutsk. (In Ukrainian).
21. Zuzuk, F.V., Melnychuk, V.G., Zaleski, I.I. (2012). Virohidnist vplyvu rozrobky Khotyslavskoho rodovyshcha kreidy na zapovidni ekosystemy Volyni [Probability of Influence on Protected Ecosystems of Volyn of Development of Hotyslavsk Quarry of Chalk]. Nature of Western Polesie and surrounding territories. № 9. 3-11. (In Ukrainian).
Published
2020-12-25
How to Cite
Fedoniuk, V., Khrystetska, M., Fedoniuk, M., Merlenko, I., & Bondarchuk, S. (2020). Shallowing of the Svityaz Lake in the context of regional climate change. Journal of Geology, Geography and Geoecology, 29(4), 673-683. https://doi.org/https://doi.org/10.15421/112060