Geocryological Conditions of Small Mountain Catchment in the Upper Kolyma Highland (Northeastern Asia)

Author:

Makarieva Olga12ORCID,Zemlianskova Anastasiia12,Abramov Dmitriy3,Nesterova Nataliia2,Ostashov Andrey2

Affiliation:

1. Laboratory of Monitoring and Forecasting Climate Change and the Environment, North-Eastern State University, 685000 Magadan, Russia

2. Earth Science Institute, St. Petersburg State University, 199034 St. Petersburg, Russia

3. Faculty of Geology, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia

Abstract

This research presents a comprehensive environmental assessment of a small mountain permafrost catchment of the Anmangynda River in the Upper Kolyma Highland (Northeastern Asia) over the period of 2021–2023. The study reveals significant diversity in climatic, geocryological, and hydrogeological conditions within this confined area, emphasizing the need for extensive field data collection and monitoring in vast permafrost regions with limited data availability. Key findings include variations in ground temperature, maximum seasonal thaw depth, and depths of zero annual amplitudes of ground temperature at different elevations and landscape types. Groundwater and surface flow dynamics within spring aufeis basins exhibit complex geocryological regimes influenced by icing processes. The presence of aufeis and its impact on local hydrology highlight the ecological significance of this phenomenon. Future research should focus on long-term trends in permafrost dynamics and their relationship with climate change, as well as the ecological effects of aufeis formation on local ecosystems. The study underscores the importance of a multi-faceted approach to environmental assessment, incorporating various environmental parameters and processes, to gain a comprehensive understanding of the intricate interactions within the cryosphere and their responses to changing climate conditions. Such knowledge is essential for addressing broader questions related to climate change, ecosystem resilience, and sustainable resource management in Northeastern Siberia.

Funder

St. Petersburg State University

Russian Scientific Fund and the Government of the Magadan region

Publisher

MDPI AG

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