The study focuses on the local dynamics of precipitation and temperature in the mountainous regions of the Dagestan Republic (North Caucasus, eastern part). A shift in the secondary maximum of the precipitation annual distribution in the low-mountainous part of the region from August to September was found. The wettest years in the highlands in the periods 1966-1978 and 1996-2013 are discovered. The period from the beginning of the current century until now is identified as the wettest in the low-mountain zone. It was found that the trends of seasonal temperatures are positive. At the same time, the dynamics of spring temperatures remained insignificant in the low-mountain zone until 2010. It was revealed that the statistically reliable increase of temperature in February and March and unidirectional tendencies in the daily characteristics of precipitation is the local pattern of the climate change in this part of the North Caucasus. In this season the increase in the average and maximum daily precipitation intensity is reliable.
precipitation dynamics, air temperature trends, North Caucasus, East Caucasus, climate change in mountainous areas, natural hazard
1. Blöschl, G., et al., Changing climate both increases and decreases European river floods, Nature, 573, 108-111, doihttps://doi.org/10.1038/s41586-019-1495-6, 2019.
2. Bulygina, O. N., and V. N. Razuvaev, Daily Temperature and Precipitation Data for 518 Russian Meteorological Stations, Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee,doihttps://doi.org/10.3334/CDIAC/cli.100, 2012.
3. Konapala, G., A. Mishra, and L. R. Leung, Changes intemporal variability of precipitation over land due to anthropogenic forcings, Environmental Research Letters,12(2), 024009, doihttps://doi.org/10.1088/1748-9326/aa568a,2017.
4. Korchagina, E. A., The research on stability of tendencies of climate elements in the highlands of Karachay-Cherkessia from 1959 to 2017, Vestnik KRAUNC. Fiz.-mat. nauki., 23, 106-115, doihttps://doi.org/10.18454/2079-6641-2018-23-3-106-115, 2018.
5. Korchagina, E. A., The investigation on temperature regime in the highlands of the Kabardino-Balkarien and Karachay-Cherkes republic from 1951 to 2015, Sustainable development of mountain territories, 11,449-458, 2019.
6. Korchagina, E. A., Dynamics of daily precipitation characteristics in the Western Caucasus, Proceedings of Voronezh State University, 3, 25-32, doihttps://doi.org/10.17308/geo.2021.3/3597, Series: Geography, Geoecology, 2021.
7. Malygina, N., T. Papina, N. Kononova, and T. Barlyaeva, Influence of atmospheric circulation on precipitation in Altai Mountains, Journal of Mountain Science, 14(1),46-59, doihttps://doi.org/10.1007/s11629-016-4162-5, 2017.
8. Prein, A. F., R. M. Rasmussen, K. Ikeda, C. Liu, M. P.Clark, and G. J. Holland, The future intensification of hourly precipitation extremes, Nature Climate Change,7(1), 48-52, doihttps://doi.org/10.1038/nclimate3168, 2017.
9. Rets, E. P., R. G. Dzhamalov, M. B. Kireeva, N. L. Frolova,I. N. Durmanov, A. A. Telegina, E. A. Telegina, and V. Y. Grigoriev, Recent trends of river runoff in the north Caucasus, Geography, Environment, Sustainability,11(3), 61-70, doihttps://doi.org/10.24057/2071-9388-2018-11-3-61-70, 2018.
10. Sharma, A., C. Wasko, and D. P. Lettenmaier, If Precipitation Extremes Are Increasing, Why Aren’t Floods?, Water Resources Research, 54(11), 8545-8551,doihttps://doi.org/10.1029/2018WR023749, 2018.
11. Tashilova, A. A., B. A. Ashabokov, L. A. Kesheva, and N. V. Teunova, Analysis of Climate Change in the Caucasus Region: End of the 20th-Beginning of the21st Century, Climate, 7(1), doihttps://doi.org/10.3390/cli7010011,2019.
12. Trenberth, K. E., Changes in Precipitation with Climate Change, Climate Research, 47, 123-138, doihttps://doi.org/10.3354/cr00953, 2011.
13. Wasko, C., and A. Sharma, Global assessment of flood and storm extremes with increased temperatures, Scientific Reports, 7(1), 7945, doihttps://doi.org/10.1038/s41598-017-08481-1, 2017.
14. WMO, WMO Guidelines on the Calculation of Climate Normals, Tech. Rep. 1203, Chairperson, Publications Board World Meteorological Organization (WMO), (Geneva: WMO), 2017.
15. Ye, H., and E. J. Fetzer, Asymmetrical Shift Toward Longer Dry Spells Associated with Warming Temperatures During Russian Summers, Geophysical Research Letters, 46(20), 11455-11462,doi:https://doi.org/10.1029/2019GL084748, 2019.
16. Yin, J., P. Gentine, S. Zhou, S. C. Sullivan, R. Wang, Y. Zhang, and S. Guo, Large increase in global storm runoff extremes driven by climate and anthropogenic changes, Nature Communications, 9(1), 4389, doihttps://doi.org/10.1038/s41467-018-06765-2, 2018.
