Alexander “Sasha” Yankovsky

1991 Ph.D., Marine Hydrophysical Inst., Sevastopol, USSR (now Ukraine).
 
1986 B.S./M.S. Moscow State Univ., Moscow, USSR (with honors).


Contacts

Marine Science Program and Department of Earth and Ocean Sciences
701 Sumter St., EWS 617
University of South Carolina
Columbia, SC 29208


Office: 308 Earth and Water Sciences Bldg.
E-mail address:
ayankovsky@geol.sc.edu
Phone: (803) 777-3550


Marine Hydrophysical Inst., Ukraine

Research interests

My primary research interest is the dynamics on continental shelves and in marginal seas. This includes wind- and buoyancy-driven currents, transient and time-variable processes, waves, wave-current interaction, mesoscale variability, adjustment of shelf currents to the topographic and coastline features. My research comprises a numerical modeling and the analysis of observational data, both in situ and remotely-sensed.

For prospective students

Currently, I offer the following possible research topics listed below. These projects can be pursued either as MS or PhD studies and will require a background in oceanography or marine sciences as well as some basic knowledge of physics, math and programming.
- A numerical modeling of coastal currents driven by multiple or continuous sources of fresh water along the coastline (numerous small rivers or melting ice), and the impact of atmospheric forcing and coastal topography on the partition between the offshore and the downstream transport of buoyant water. The examples of relevant current systems in the World Ocean include the Alaska Coastal Current, the Norwegian Coastal Current, the East Greenland Coastal Current, etc.;
- A numerical modeling of long-wave response on the continental shelf induced by the hurricane landfall (different types of wave motions both trapped on the shelf and radiated offshore);
- Observational and modeling studies of tidal wave propagation and dissipation in an estuary. The focus of this research is on the interaction of the tidal wave with estuarine topographic features in the middle and upper estuary.

Edge waves on the West Florida shelf
MODIS image of the Alaska Coastal Current, 13 March 2008

Students at USC

  • John Rogers-Cotrone, M.S. Geological Sciences, 2008 (now at Naval Research Lab, Stennis Space Center, MS)
  • Ziming "Alex" Ke, PhD. Candidate, Marine Science
  • Legna Torres, PhD. Candidate, Geological Sciences
  • Yan Jia, M.S. Candidate, Marine Science
  • Grace Maze, Undergraduate Research Assistant, NSF REU Scholar

Classes taught at USC

GEOL/MSCI 785 Atmospheric Dynamics
GEOL/MSCI 581 Estuarine Oceanography
GEOL/MSCI 215 Coastal Environments of the SE
MSCI 599A Waves in the Ocean
GEOL/MSCI 784 Geophysical Fluid Dynamics
MSCI 305Ocean Data Analysis


Selected Publications

Ivanov, V. A., and A. E. Yankovsky, 1993: Local Dynamics Experiment in the shelf zone of Southern Crimean coast. Okeanologiya, 33, 49‑56 (in Russian).

Yankovsky, A. E., 1993: Scattering of barotropic shelf waves by the changing shelf width. Izvestiya Academii Nauk. Fizika Atmosfery Okeana, 29, 369‑376 (in Russian).

Ivanov, V. A., and A. E. Yankovsky, 1994: Seawater dynamics on the Crimean shelf in summer. Morskoy Gidrofizichesky Zhurnal, No. 3, 38-56 (in Russian).

Yankovsky, A. E., and D. C. Chapman, 1995: Generation of mesoscale flows over the shelf and slope by shelf wave scattering in the presence of a stable, sheared mean current. Journal of Geophysical Research, 100, 6725‑6742.

Yankovsky, A. E., and D. C. Chapman, 1997a: Anticyclonic eddies trapped on the continental shelf by topographic irregularities. Journal of Geophysical Research, 102, 5625-5639.

Yankovsky, A. E., and D. C. Chapman, 1997b: A simple theory for the fate of buoyant coastal discharges.Journal of Physical Oceanography, 27, 1386-1401.

Yankovsky, A. E., and R. W. Garvine, 1998: Subinertial dynamics on the inner New Jersey shelf during the upwelling season. Journal of Physical Oceanography, 28, 2444-2458.

Yankovsky, A. E., R. W. Garvine, and A. Münchow, 2000: Mesoscale currents on the inner New Jersey shelf driven by the interaction of buoyancy and wind forcing. Journal of Physical Oceanography, 30, 2214-2230.

Yankovsky, A. E., 2000: The cyclonic turning and propagation of buoyant coastal discharge along the shelf. Journal of Marine Research, 58, 585-607.

Yankovsky, A. E., B. M. Hickey, and A. K. Münchow, 2001: The impact of variable inflow on the dynamics of a coastal buoyant plume. Journal of Geophysical Research, 106, 19,809-19,824.

Yankovsky, A. E., 2003: The cold water pathway during an upwelling event on the New Jersey shelf. Journal of Physical Oceanography, 33, 1954-1966.

Yankovsky, A. E., E. M. Lemeshko, and Y. P. Ilyin, 2004: The influence of shelfbreak forcing on the alongshelf penetration of the Danube buoyant water, Black Sea. Continental Shelf Research, 24, 1083-1098.

Yankovsky, A. E., 2004: Interaction of transient shelf currents with a buoyancy-driven coastal current.  Journal of Marine Research, 62, 545-563.

Walker, R. J., E. O. Keith, A. E. Yankovsky, and D. K. Odell, 2005: Environmental correlates of cetacean mass stranding sites in Florida. Marine Mammal Science, 21, 327-335.

Yankovsky, A. E., 2006: On the validity of thermal wind balance in alongshelf currents off the New Jersey coast. Continental Shelf Research, 26, 1171-1183.

Yankovsky, A. E., 2008: Long-wave response of the West Florida Shelf to the landfall of Hurricane Wilma, Ocober 2005. Journal of Coastal Research, 24(4C), 33-39

Sanay, R., A. Yankovsky, and G. Voulgaris, 2008: Inner shelf circulation patterns and nearshore flow reversal under downwelling and stratified conditions off a curved coastline. Journal of Geophysical Research, 113, C08050, doi:10.1029/2007JC004487.

Rogers-Cotrone, J., A. E. Yankovsky, and T. J. Weingartner, 2008: The impace of spatial wind variations on freshwater transport by the Alaska Coastal Current. Journal of Marine Research, 66, 899-925.

Yankovsky, A. E., 2009: Large-scale edge waves generated by hurricane landfall. Journal of Geophysical Research,114, C03014, doi:10.1029/2008JC005113.