Sea-Ice Drift on the Northeastern Shelf of Sakhalin Island

Abstract Ice-drift velocity records from coastal radar stations, combined with data from moored current meters and coastal wind stations, are used to examine sea-ice motion off the northeastern coast of Sakhalin Island in the Sea of Okhotsk. Ice motion is shown to be governed primarily by diurnal tidal currents and wind-induced drift, which explain 92%–95% of the total ice-drift variance. Diurnal tidal motions predominate off the northern Sakhalin coast, accounting for 65%–80% of the variance, while low-frequency wind-induced motions prevail off the south-central coast, accounting for over 91% of the ice-drift variance. Maximum diurnal tidal ice-drift velocities range from 90–110 cm s−1 on the north coast to 10–15 cm s−1 on the south coast, in good agreement with the barotropic model of Kowalik and Polyakov. The presence of diurnal shelf waves accounts for the strong diurnal currents on the steeply sloping northern Sakhalin shelf, while the absence of such waves explains the weak diurnal currents on the m...

[1]  Seelye Martin,et al.  The production of ice and dense shelf water in the Okhotsk Sea polynyas , 1998 .

[2]  M. Foreman,et al.  Three-Dimensional Model Simulations of Tides and Buoyancy Currents along the West Coast of Vancouver Island , 1997 .

[3]  M. Mcphee.  Sea Ice Drag Laws and Simple Boundary Layer Concepts, Including Application to Rapid Melting, , 1982 .

[4]  Harry L. Stern,et al.  Sea ice kinematics and surface properties from RADARSAT synthetic aperture radar during the SHEBA drift , 2002 .

[5]  D. Pugh.  Tides, Surges and Mean Sea-Level , 1987 .

[6]  R. Pinkel,et al.  Diurnal tides near the Yermak Plateau , 1992 .

[7]  L. Mysak.  Recent advances in shelf wave dynamics , 1980 .

[8]  K. Brink,et al.  Programs for computing properties of coastal-trapped waves and wind-driven motions over the continental shelf and slope , 1985 .

[9]  Malcolm Mellor,et al.  Mechanical behavior of sea ice , 1986 .

[10]  M. Mcphee.  Turbulent stress at the ice/ocean interface and bottom surface hydraulic roughness during the SHEBA drift : The surface heat budget of arctic ocen (SHEBA) , 2002 .

[11]  W. Crawford,et al.  Diurnal-Period Continental Shelf Waves along Vancouver Island: A Comparison of Observations with Theoretical Models , 1984 .

[12]  P. Heil,et al.  Modeling the High-Frequency Component of Arctic Sea Ice Drift and Deformation , 2002 .

[13]  Seelye Martin,et al.  Satellite passive microwave studies of the Sea of Okhotsk ice cover and its relation to oceanic processes, 1978-1982 , 1987 .

[14]  I. Polyakov,et al.  Tides in the Sea of Okhotsk , 1998 .

[15]  J. Overland,et al.  Spatial hierarchy in Arctic sea ice dynamics , 2003 .

[16]  R. Colony,et al.  Sea ice motion in response to geostrophic winds , 1982 .

[17]  Kay I. Ohshima,et al.  Near-surface circulation and tidal currents of the Okhotsk Sea observed with satellite-tracked drifters , 2002 .

[18]  Stephen F. Ackley,et al.  Large‐scale sea ice drift and deformation: Comparison between models and observations in the western Weddell Sea during 1992 , 1998 .

[19]  L. Mysak,et al.  Waves in the ocean , 1978 .

[20]  K. Akitomo,et al.  Tidal Exchange through the Kuril Straits , 2000 .

[21]  A. Rabinovich,et al.  Evidence of Diurnal Shelf Waves in Satellite-Tracked Drifter Trajectories off the Kuril Islands , 2001 .

[22]  Peter Wadhams,et al.  Ice in the ocean , 2000 .

[23]  C. Tang,et al.  Response of sea ice drift to wind forcing on the northeastern Newfoundland Shelf , 1991 .

[24]  M. Mcphee.  The Upper Ocean , 1986 .

[25]  K. Ohshima,et al.  Observations of Ice-Ocean Eddy Streets in the Sea of Okhotsk off the Hokkaido Coast Using Radar Images , 1990 .

[26]  C. Kottmeier,et al.  High‐frequency ice motion and divergence in the Weddell Sea , 2000 .

[27]  M. Wakatsuchi,et al.  Satellite observations of the ice cover of the Kuril Basin region of the Okhotsk Sea and its relation to the regional oceanography , 1990 .

[28]  J. Overland,et al.  Modeling ice dynamics of coastal seas , 1988 .

[29]  Ron Kwok,et al.  Relating arctic pack ice stress and deformation under winter conditions , 2002 .