Igor Polyakov

Igor Polyakov
Professor
affiliations: IARC/CNSM
location: 408 G Akasofu Building
email: igor attsymbol for nospam iarc [dot] uaf [dot] edu
phone: 907-474-2686

 

Projects

Professional Interests

  • Arctic and North Atlantic oceanography
  • Polar climate change

Links

  • Monthly Arctic surface air temperatures from meteorological stations
  • Archive of historical sea ice concentrations
  • NABOS archive
  • NABOS-II archive

Education

  • Doctor of Science, Physical Oceanography, Russian State Hydrometeorological Institute 
  • Ph.D, Physical Oceanography, Arctic and Antarctic Research Institute
  • M.S., Mathematics, St. Petersburg State University
  • M.S., Physical Oceanography, Leningrad Hydrometeorological Institute

Teaching

  • ATM 610: Methods of analysis of atmospheric and climate data
  • ATM 693: Air-sea interactions
  • ATM 693: Climate Journal Club

Selected Services

  • Invited Managing Guest Editor, ISAR-3 Special Issue, Polar Science journal (2013-14)
  • Member of Advisory Board for the Center of Complex Systems, UAF (2007–09)
  • Member of Advisory Board for the Beaufort Sea Mesoscale Meteorology Study under the Minerals Management Service (2008-13).
  • Co-author of the IPCC (Intergovernmental Panel on Climate Change) Third Assessment Report.

Recent Workshops

  • Organizer of S4D-NABOS Workshop “Near-slope observations in the Arctic Ocean”, Paris, France, 2009.
  • Organizer of Workshop “Arctic Ocean Drift Study”, Winnipeg, Canada, 2012.
  • Organizer of an Untersteiner Workshop “On the role and consequences of ocean heat flux in sea ice melt”, Fairbanks, Alaska, 2013.
  • Organizer of Workshop “Observations of upper-ocean and sea-ice interactions in the eastern Arctic Ocean”, Arlington, VA, 2014.
  • Organizer of All-IARC mini-Workshop, Fairbanks, AK, 2015.

Selected Publications

2015

Carmack, E., I. Polyakov, L. Padman, I. Fer, E. Hunke, J. Hutchings, J. Jackson, D. Kelley, R. Kwok, C. Layton, H. Melling, D. Perovich, O. Persson, B. Ruddick, M. Timmermans, J. Toole, T. Ross, S. Vavrus, and P. Winsor, 2015: Towards quantifying the increasing role of oceanic heat in sea ice loss in the new Arctic. Bull. Amer. Meteor. Soc. doi:10.1175/BAMS-D-13- 00177.1, in press.

Pnyushkov, A. V., I. V. Polyakov, V. V. Ivanov, Y. Aksenov, A. C. Coward, M. Janout, and B. Rabe, Structure and variability of the boundary current in the Eurasian Basin of the Arctic Ocean, Deep Sea Res. http://dx.doi.org/10.1016/j.dsr.2015.03.001, in press.

2014

Dmitrenko, I. A., Kirillov, S. A., Serra, N., Koldunov, N. V., Ivanov, V. V., Schauer, U., Polyakov, I. V., Barber, D., Janout, M., Lien, V. S., Makhotin, M., and Aksenov, Y., Heat loss from the Atlantic water layer in the northern Kara Sea: causes and consequences, Ocean Sci., 10, 719-730, doi:10.5194/os-10-719-2014.

Park, H., A. B. Sherstiukov, A. N. Fedorov, I. V. Polyakov and J. E. Walsh, Observation-based assessment of how climate affects trends and variability of soil temperature in Russia, Environ. Res. Lett., 9, 064026, doi:10.1088/1748-9326/9/6/064026.

Bauch, D., Torres-Valdes, S., Polyakov, I., Novikhin, A., Dmitrenko, I., McKay, J., and Mix, A., Halocline water modification and along slope advection at the Laptev Sea continental margin, Ocean Sci., 10, 141–154, 2014 www.ocean-sci.net/10/141/2014/ doi:10.5194/os-10-141-2014.

2013

Polyakov, I. V., U. S. Bhatt, J. E. Walsh, E. P. Abrahamsen, A. V. Pnyushkov and P. F. Wassmann, Recent oceanic changes in the Arctic in the context of long-term observations, Ecological Applications, 23(8), 1745-1764.

Hinzman, L., C. Deal, A. D. McGuire, Polyakov, I. V., and J. E. Walsh, Trajectory of the Arctic as an integrated system, Ecological Applications. 23(8), 1837-1868.

de Steur, L., M. Steele, E. Hansen, J. Morison, I. Polyakov, S. M. Olsen, H. Melling, F.A. McLaughlin, R. Kwok, W.M. Smethie Jr., P. Schlosser, Hydrographic changes in the Lincoln Sea in the Arctic Ocean with focus on an upper ocean freshwater anomaly between 2007 and 2010, J. Geophys. Res. Oceans, 118, 4699–4715, doi:10.1002/jgrc.20341.

Basu, S., X. Zhang, I. V. PolyakovM, and U. S. Bhatt, North American Winter-Spring Storms: Modeling Investigation on Tropical Pacific Sea Surface Temperature Impacts, Geophys. Res. Lett. 40, doi:10.1002/grl.50990.

Polyakov, I. V., A. V. Pnyushkov, R. Rember, L. Padman, E. C. Carmack, and J. Jackson, Winter convection transports Atlantic Water heat to the surface layer in the eastern Arctic Ocean, J. Phys. Oceanogr., 43(10), 2148–2162, DOI: 10.1175/JPO-D-12-0169.1

Bhatt, U. S., D. A. Walker, M.K. Raynolds, P. A. Bieniek, H. E. Epstein, J. C. Comiso, J. E. Pinzon, C. J. Tucker, and I. V. Polyakov, Recent Declines in Warming and Arctic Vegetation Greening Trends over Pan-Arctic Tundra, Remote Sensing (Special NDVI3g Issue), 5, 4229-4254; doi:10.3390/rs5094229

Pnyushkov, A. V., I. V. Polyakov, V. V. Ivanov, and T. Kikuchi, Structure of boundary current in the Eurasian Basin of the Arctic Ocean, Polar Science, 7(2), 53-71, http://dx.doi.org/10.1016/j.polar.2013.02.001.

2012

Polyakov, I. V., A. V. Pnyushkov and L. A. Timokhov, Warming of the intermediate Atlantic Water of the Arctic Ocean in the 2000s, J. Climate. 25(23), 8362–8370, DOI 10.1175/JCLI-D-12-00266.1

Zhang, X., J. He, J. Zhang, Polyakov, I. V., R. Gerdes, J. Inoue, and P. Wu, Enhanced poleward moisture transport and amplified northern high-latitude wetting trend, Nature Climatic Change, doi:10.1038/nclimate1631.

Legatt, R., I. V. Polyakov, U. S. Bhatt, X. Zhang, and R. V. Bekryaev, North Atlantic variability driven by stochastic forcing in a simple box model, Tellus A, 64, 18695, http://dx.doi.org/10.3402/tellusa.v64i0.18695.

Polyakov, I. V., R. Kwok, and J. E. Walsh, Recent changes of arctic multiyear sea-ice coverage and their likely causes, Bulletin of American Meteorological Society. 93(2), 145–151, DOI:10.1175/BAMS-D-11-00070.1.

Alexeev, V. A., I. Esau, I. V. Polyakov, S. J. Byam and S. Sorokina, Vertical structure of recent Arctic warming from observed data and reanalysis products, Climatic Change, 111, 215–239, DOI 10.1007/s10584-011-0192-8.

Polyakov, I. V., A. V. Pnyushkov, R. Rember, V. V. Ivanov, Y-D. Lenn, L. Padman and E. C. Carmack, Mooring-based observations of the double-diffusive staircases over the Laptev Sea slope, J. Phys. Oceanogr., 42, 95 –109, DOI: 10.1175/2011JPO4606.1.

Pnyushkov, A. and I. V. Polyakov, Observations of tidally-induced currents over the continental slope of the Laptev Sea, Arctic Ocean, J. Phys. Oceanogr., 42, 78–94, DOI: 10.1175/JPO-D-11-064.1.

2011

Aksenov, Y., V. V. Ivanov, A. J. G. Nurser, S. Bacon, I. V. Polyakov, A. C. Coward, A. C. Naveira-Garabato, and A. Beszczynska-Moeller (2011), The Arctic Circumpolar Boundary Current, J. Geophys. Res., 116, C09017, doi:10.1029/2010JC006637.

Polyakov, I. V., V. A. Alexeev, I. M. Ashik, S. Bacon, A. Beszczynska-Möller, I. Dmitrenko, L. Fortier, J.-C. Gascard, E. Hansen, J. Hölemann, V. V. Ivanov, T. Kikuchi, S. Kirillov, Y.-D. Lenn, J. Piechura, I. Repina, L. A. Timokhov, W. Walczowski, and R. Woodgate, Fate of early-2000's Arctic warm water pulse, Bulletin of American Meteorological Society. 92(5), 561–566, DOI:10.1175/2010BAMS2921.1.

Lenn, Y.-D., T. P. Rippeth, C. P. Old, S. Bacon, I. Polyakov, V. Ivanov, J. A. Hollemann, Intermittent intense turbulent mixing under ice in the Arctic Halocline of the Laptev Self Sea, J. Phys. Oceanogr., 43(3), 531 –547.

2010

Polyakov, I. V., L. A. Timokhov, V. A. Alexeev, S. Bacon, I. A. Dmitrenko, L. Fortier, I. E. Frolov, J.-C. Gascard, E. Hansen, V. V. Ivanov, S. Laxon, C. Mauritzen, D. Perovich, K. Shimada, H. L. Simmons, V. T. Sokolov, M. Steele, and J. Toole, Arctic Ocean warming reduces polar ice cap, J. Phys. Oceanogr., DOI: 10.1175/2010JPO4339.1, 40, 2743–2756.

Bekryaev, R. V., I. V. Polyakov, and V. A. Alexeev, Role of polar amplification in long-term surface air temperature variations and modern arctic warming, J. Climate, 23(14), 3888–3906.

Polyakov, I. V., V. A. Alexeev, U. S. Bhatt, E. I. Polyakova, and X. Zhang, North Atlantic warming: Patterns of long-term trend and multidecadal variability, Climate Dynamics, 34, 439–457, DOI 10.1007/s00382-008-0522-3.

2009

Dmitrenko, I. A., S. A. Kirillov, V. V. Ivanov, R. A. Woodgate, I. V. Polyakov, et al., Seasonal modification of the Arctic Ocean intermediate water layer off the eastern Laptev Sea continental shelf break, J. Geophys. Res. 114, C06010, doi:10.1029/2008JC005229.

Ivanov, V. V., I. V. Polyakov, I. A. Dmitrenko, E. Hansen, I. A. Repina, S. S. Kirillov, C. Mauritzen, H. L. Simmons, L. A. Timokhov, Seasonal oceanic variability off Svalbard in 2004-06, Deep-Sea Res. I, 56, 1-14.

Lenn, Y.-D., P. Wiles, S. Torres-Valdes, E. Abrahamsen, T. Rippeth, J. H. Simpson, S. Bacon, S. Laxon, I. Polyakov, V. Ivanov, and S. Kirillov, Vertical mixing at intermediate depths in the Arctic boundary current, Geophys. Res. Lett., 36, L05601, doi: 10.1029/2008GL036792.

2008

Dmitrenko, I. A., I. V. Polyakov, S. A. Kirillov, L. A. Timokhov, I. E. Frolov, V. T. Sokolov, H. L. Simmons, V. V. Ivanov, and D. Walsh (2008), Toward a warmer Arctic Ocean: Spreading of the early 21st century Atlantic Water warm anomaly along the Eurasian Basin margins, J. Geophys. Res., 113, C05023, doi:10.1029/2007JC004158.

Polyakov, I. V. , V. Alexeev, G. I. Belchansky, I. A. Dmitrenko, V. Ivanov, S. Kirillov, A. Korablev, M. Steele, L. A. Timokhov, I. Yashayaev, Arctic Ocean freshwater changes over the past 100 years and their causes, J. Climate,21(2), 364–384.