A. A. Polukhin

ORCID: 0000-0003-1708-1428
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About
Contact & Profiles
Research Areas
  • Arctic and Antarctic ice dynamics
  • Marine and coastal ecosystems
  • Methane Hydrates and Related Phenomena
  • Marine and environmental studies
  • Climate change and permafrost
  • Arctic and Russian Policy Studies
  • Ocean Acidification Effects and Responses
  • Geological Studies and Exploration
  • Aquatic and Environmental Studies
  • Food Industry and Aquatic Biology
  • Marine Biology and Ecology Research
  • Oceanographic and Atmospheric Processes
  • Isotope Analysis in Ecology
  • Microbial Community Ecology and Physiology
  • Geology and Paleoclimatology Research
  • Cryospheric studies and observations
  • Transboundary Water Resource Management
  • Atmospheric and Environmental Gas Dynamics
  • Marine and fisheries research
  • Marine and coastal plant biology
  • Environmental Science and Water Management
  • Freezing and Crystallization Processes
  • Hydrocarbon exploration and reservoir analysis
  • Polar Research and Ecology
  • Oil Spill Detection and Mitigation

Institute of Oceanology. PP Shirshov Russian Academy of Sciences
2015-2024

Russian Academy of Sciences
2013-2014

The Arctic Ocean has experienced rapid warming and sea ice loss in recent decades, becoming the first open-ocean basin to experience widespread aragonite undersaturation [saturation state of (Ωarag) < 1]. However, its trend toward long-term ocean acidification underlying mechanisms remain undocumented. Here, we report there, with rates three four times higher than other basins, attribute it changing coverage on a decadal time scale. Sea melt exposes seawater atmosphere promotes uptake...

10.1126/science.abo0383 article EN Science 2022-09-29

Abstract This article focuses on the interaction between Ob‐ and Yenisei‐dominated parts of large Ob‐Yenisei buoyant plume formed in southern part Kara Sea during ice‐free periods. It was shown that certain wind forcing river discharge conditions cause formation a specific structure with significantly different properties water masses. Under these conditions, Yenisei runoff generates narrow coastal current propagating northward from Gulf along Taymyr Peninsula, which is isolated by...

10.1002/2016jc012603 article EN Journal of Geophysical Research Oceans 2017-07-01

Observations and predictions show that consequences of climate warming such as declining summer sea ice cover, melting glaciers, thawing permafrost, increased river runoff to the Arctic Ocean will likely modify processes relevant freshwater carbon budget, which in turn affect high-latitude marine ecosystems. There is a knowledge gap terms understanding seasonal variability biogeochemical characteristics coastal environments, first all due lack winter data. More data are also needed on...

10.3390/geosciences12010044 article EN cc-by Geosciences 2022-01-17

Abstract This study aims to perform the results of investigation Kara Sea carbonate system (CS) changes and factors that determine it. The important feature water structure is strong stratification caused mainly by Ob’ Yenisey rivers discharge which estimated as 81% total continental runoff sea. Occurring climate changes, an increase in volume Arctic Ocean (due melting glaciers, sea ice decline river increase), air temperature CO 2 concentration growth should affect greatly CS. However,...

10.1088/1748-9326/ab421e article EN cc-by Environmental Research Letters 2019-09-06

Abstract The impacts of oceanic CO 2 uptake and global warming on the surface ocean environment have received substantial attention, but few studies focused shelf bottom water, despite its importance as habitat for benthic organisms demersal fisheries such cod. We used a downscaling biogeochemical model to project water acidification western Eurasian Arctic shelves. A hindcast produced 14–18 year trends that were largely consistent with observational estimates at stations in Iceland Irminger...

10.1002/2017jc013231 article EN Journal of Geophysical Research Oceans 2017-09-28

The Siberian Arctic is one of the regions, where ongoing climate change most evident. There limited knowledge available on distribution macrobenthic communities in Arctic, their stability and functional structure. We used data from two latitudinal transects East Sea shelf to describe as well identify main environmental drivers responsible for observed patterns. Almost all studied area was under direct influence river runoff. Macrobenthic were dominated by bivalve Portlandia arctica generally...

10.1016/j.seares.2021.102078 article EN cc-by Journal of Sea Research 2021-06-12

Abstract. In recent years, large datasets of in situ marine carbonate system parameters (partial pressure CO2 (pCO2), total alkalinity, dissolved inorganic carbon and pH) have been collated, quality-controlled made publicly available. These highly variable data density both space time, especially the case pCO2, which is routinely measured at high frequency using underway measuring systems. This variation can create biases when are used, for example, algorithm assessment, favouring or regions...

10.5194/essd-15-921-2023 article EN cc-by Earth system science data 2023-02-27

The discharge of rivers and the subsequent dispersion their plumes play a pivotal role in biogeochemical cycling Arctic Ocean. Based on data collected during annual transects conducted autumn period (September-October) from 2015-2020, this study explores effect River Lena plume seasonal interannual changes hydrophysical structure southeastern Laptev Sea. temperature-salinity relationship (T-S), Redfield ratio multiparameter cluster analysis were used to investigate variations water mass...

10.3389/fmars.2023.1180054 article EN cc-by Frontiers in Marine Science 2023-05-30
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