Intermittent intense turbulent mixing under ice in the Laptev Sea continental shelf

Journal of Physical Oceanography

Volumn 41, Issue 3, 2011, Pages 531-547

  Lenn, Yueng Djern ^a   Rippeth, Tom P ^a   Old, Chris P ^a   Bacon, Sheldon ^b   Polyakov, Igor ^c   Ivanov, Vladimir ^c,d,e   Hölemann, Jens ^f  

^a BANGOR UNIVERSITY   (United Kingdom)

^b NATIONAL OCEANOGRAPHY CENTRE   (United Kingdom)

^c UNIVERSITY OF ALASKA FAIRBANKS   (United States)

^d SCOTTISH MARINE INSTITUTE   (United Kingdom)

^e ARCTIC AND ANTARCTIC RESEARCH INSTITUTE   (Russian Federation)

^f ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

Author keywords

Continental shelf slope; Mixing; Sea ice

Indexed keywords

ACOUSTIC DOPPLER CURRENT; ARCTIC OCEAN; ARCTIC SHELF; BACKGROUND LEVEL; BOTTOM BOUNDARY LAYER; CONTINENTAL SHELF/SLOPE; CONTINENTAL SHELVES; CRITICAL LATITUDE; LAPTEV SEA; MIXING PROCESS; SAMPLING PERIOD; STRESS VECTORS; TIDAL CURRENTS; TURBULENT KINETIC ENERGY; TURBULENT MIXING; VERTICAL DIFFUSIVITY; VERTICAL MIXING; WIND EVENTS;

ELECTRON ENERGY LOSS SPECTROSCOPY; ENERGY DISSIPATION; HEAT FLUX; KINETIC ENERGY; OCEAN CURRENTS; SEA ICE; SHEAR FLOW; TIME SERIES;

MIXING;

CONTINENTAL SHELF; CONTINENTAL SLOPE; DISSIPATION; HEAT FLUX; KINETIC ENERGY; PYCNOCLINE; SEA ICE; TIDAL CURRENT; TURBULENT MIXING; VERTICAL MIXING; WATER MASS;

ARCTIC OCEAN; LAPTEV SEA;

EID: 79953040958     PISSN: 00223670     EISSN: None     Source Type: Journal    
DOI: 10.1175/2010JPO4425.1     Document Type: Article

References (53)

1. Aagaard, K., L. Coachman, and E. Carmack, 1981: On the halocline of the Arctic Ocean. Deep-Sea Res., 28A, 529-545.
2. Abrahamsen, E. P., and Coauthors, 2008: Tracer-derived freshwater composition of the Siberian Continental Shelf following the extreme Arctic summer of 2007. Geophys. Res. Lett., 36, L07602, doi:10.1029/2009GL037341.
3. Burchard, H., and T. P. Rippeth, 2009: Generation of bulk shear spikes in shallow stratified tidal seas. J. Phys. Oceanogr., 39, 969-985.
4. Cavalieri, D., C. Parkinson, P. Gloersen, and H. J. Zwally, 2008: Sea-ice concentrations from Nimbus-7 SMMR and DMSP SSM/I passive microwave data [August 2006-July 2007]. National Snow and Ice Data Center, Boulder, CO, digital media. [Available online at ftp://sidads.colorado.edu/pub/DATASETS/seaice/polar-stereo/nasateam/final-gsfc/.]
5. Daae, K. L., I. Fer, and E. P. Abrahamsen, 2009: Mixing on the continental slope of the southern Weddell Sea. J. Geophys. Res., 114, C09018, doi:10.1029/2008JC005259.
6. D'Asaro, E. A., and J. H. Morison, 1992: Internal waves and mixing in the Arctic Ocean. Deep-Sea Res. I, 39, S459-S484.
7. Dmitrenko, I. A., and Coauthors, 2010: Impact of the Arctic Ocean Atlantic water layer on the Siberian shelf hydrography. J. Geophys. Res., 115, C08010, doi:10.1029/2009JC006020.
8. Fer, I., 2009: Weak vertical diffusion allows maintenance of cold halocline in the central Arctic. Atmos. Oceanic Sci. Lett., 2, 148-152.
9. Fer, I., and A. Sundfjord, 2007: Observations of upper ocean boundary layer dynamics in the marginal ice zone. J. Geophys. Res., 112, C04012, doi:10.1029/2005JC003428.
10. Fer, I., R. Skogseth, and F. Geyer, 2010: Internal waves and mixing in the marginal ice zone near the Yermak Plateau. J. Phys. Oceanogr., 40, 1613-1630.
11. Furevik, T., and A. Foldvik, 1996: Stability atM2 critical latitude in the Barents Sea. J. Geophys. Res., 101 (C4), 8823-8838.
12. Holloway, G., and A. Proshutinsky, 2007: Role of tides in Arctic ocean/ice climate. J. Geophys. Res., 112, C04S06, doi:10.1029/2006JC003643.
13. Itoh, M., E. Carmack, K. Shimada, F. McLaughlin, S. Nishino, and S. Zimmerman, 2007: Formation and spreading of Eurasian source oxygen-rich halocline water into the Canadian Basin in the Arctic Ocean. Geophys. Res. Lett., 34, L08603, doi:10.1029/2007GL029482.
14. Jakobsson, M.,N.Cherkis, J.Woodward,B.Coakley, and R. Macnab, 2000:Anew grid of Arctic bathymetry:Asignificant resource for scientists and mapmakers. Eos, Trans. Amer. Geophys. Union, 81, 89-96.
15. Kelley, D. E., H. Fernando, A. Gargett, J. Tanny, and E. Oezsoy, 2003: The diffusive regime of double-diffusive convection. Prog. Oceanogr., 56, 461-481.
16. Kowalik, Z., and A. Proshutinsky, 1994: The Arctic Ocean tides. The Polar Oceans and Their Role in Shaping the Global Environment, Geophys. Monogr., Vol. 85, Amer. Geophys. Union, 137-158.
17. Lenn, Y. D., and Coauthors, 2009: Vertical mixing at intermediate depths in the arctic boundary current. Geophys. Res. Lett., 36, L05601, doi:10.1029/2008GL036792.
18. Liu, P. C., 1994: Wavelet spectrum analysis and ocean wind waves. Wavelets in Geophysics, E. Foufoula-Georgiou and P. Kumar, Eds., Vol. 4, Academic Press, 151-166.
19. Mackinnon, J. A., and M. C.Gregg, 2005:Near-inertial waves on the NewEngland shelf: The role of evolving stratification, turbulent dissipation, and bottomdrag. J. Phys.Oceanogr., 35, 2408-2424.
20. Makinson, K., 2002: Modeling tidal current profiles and vertical mixing beneath Filchner Ronne Ice Shelf, Antarctica. J. Phys. Oceanogr., 32, 202-215.
21. Makinson, K., M. Schröder, and S. Østerhus, 2006: Effect of critical latitude and seasonal stratification on tidal current profiles along Ronne Ice Front, Antarctica. J. Geophys. Res., 111, C03022, doi:10.1029/2005JC003062.
22. Maykut,G.A., andN.Untersteiner, 1971: Some results from a timedependent thermodynamic model of sea ice. J. Geophys. Res., 76, 1550-1575.
23. McPhee, M. G., 1992: Turbulent heat flux in the upper ocean under sea ice. J. Geophys. Res., 97 (C4), 5365-5379.
24. McPhee, M. G., 2002: Turbulent stress at the ice/ocean interface and bottom surface hydraulic roughness during the SHEBA drift. J. Geophys. Res., 107, 8037, doi:10.1029/2000JC000633.
25. McPhee, M. G., and D. G. Martinson, 1994: Turbulent mixing under drifting pack ice in the Weddell Sea. Science, 263, 218-221.
26. McPhee, M. G., T. Kikuchi, J. H. Morison, and T. P. Stanton, 2003: Ocean-to-ice heat flux at the North Pole environmental observatory. Geophys. Res. Lett., 30, 2274, doi:10.1029/2003GL018580.
27. McPhee, M. G., R. Kwok, R. Robins, and M. Coon, 2005: Upwelling of Arctic pycnocline associated with shear motion of sea ice. Geophys. Res. Lett., 32, L10616, doi:10.1029/2004GL021819.
28. Meincke, J., B. Rudels, and H. J. Friedrich, 1997: The Arctic Ocean-Nordic Seas thermohaline system. ICES J.Mar. Sci., 54, 283-299.
29. Morozov, E. G., V. T. Paka, and V. V. Bakhanov, 2008: Strong internal tides in the Kara Gates Strait. Geophys. Res. Lett., 35, L16603, doi:10.1029/2008GL033804.
30. Osborn, T., 1980: Estimates of the local rate of vertical diffusion from dissipation measurements. J. Phys. Oceanogr., 10, 83-89.
31. Padman, L., 1995: Small scale physical process in the Arctic Ocean. Arctic Oceanography, Marginal Ice Zones and Continental Shelves, Geophys. Monogr., Vol. 49, Amer. Geophys. Union, 97-129.
32. Padman, L., and T. M. Dillon, 1987: Vertical heat fluxes through the Beaufort Sea thermohaline staircase. J. Geophys. Res., 92, 10 799-10 806.
33. Padman, L., and T. M. Dillon, 1991: Turbulent mixing near the Yermak Plateau during the Coordinated Eastern Arctic Experiment. J. Geophys. Res., 96, 4769-4782.
34. Padman, L., and S. L. Erofeeva, 2004: A barotropic tidal model for the Arctic Ocean. Geophys. Res. Lett., 31, L02303, doi:10.1029/2003GL019003.
35. Padman, L., A. Plueddemann, R. Muench, and R. Pinkel, 1992: Diurnal tides near the Yermak Plateau. J. Geophys. Res., 97 (C8), 12 639-12 652.
36. Padman, L., S. L. Howard, A. H. Orsi, and R. D. Muench, 2009: Tides of the northwestern Ross Sea and their impact on dense outflows of Antarctic Bottom Water. Deep-Sea Res. II, 56, 818-834.
37. Pawlowicz, R., B. Beardsley, and S. Lentz, 2002: Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE. Comput. Geosci., 28, 929-937.
38. Prandle, D., 1982: The vertical structure of tidal currents and other oscillatory flows. Cont. Shelf Res., 1, 191-207.
39. Prinsenberg, S. J., and E. B. Bennett, 1989: Vertical variations of tidal currents in shallow land fast ice-covered regions. J. Phys. Oceanogr., 19, 1268-1278.
40. Rainville, L., and P. Winsor, 2008: Mixing across the Arctic Ocean: Microstructure observations during the Beringia 2005 expedition. Geophys. Res. Lett., 35, L08606, doi:10.1029/2008GL033532.
41. Rainville, L., and R. A. Woodgate, 2009: Observations of internal wave generation in the seasonally ice-free Arctic. Geophys. Res. Lett., 36, L23604, doi:10.1029/2009GL041291.
42. Rippeth, T. P., 2005: Mixing in seasonally stratified shelf seas: A shifting paradigm. Philos. Trans. Roy. Soc. London, 363A, 2837-2854.
43. Rippeth, T. P., J. H. Simpson, and E. Williams, 2003: Measurement of the rates of production and dissipation of turbulent kinetic energy in an energetic tidal flow: Red Wharf Bay revisited. J. Phys. Oceanogr., 33, 1889-1901.
44. Rippeth, T. P., P. Wiles, M. R. Palmer, J. Sharples, and J. Tweddle, 2009: The diapycnal nutrient flux and shear-induced diapycnal mixing in the seasonally stratified western Irish Sea. Cont. Shelf Res., 29, 1580-1587.
45. Rudels, B., L. Anderson, and E. Jones, 1996: Formation and evolution of the surface mixed layer and halocline of the Arctic Ocean. J. Geophys. Res., 101 (C4), 8807-8821.
46. Rudels, B., R.D.Muench, J. Gunn, U. Schauer, and H. J. Freidrich, 2000: Evolution of the Arctic boundary current north of the Siberian shelves. J. Mar. Syst., 25, 77-99.
47. Shimada, K., M. Itoh, S. Nishino, F. McLaughlin, E. Carmack, and A. Proshutinsky, 2005: Halocline structure in the Canadian Basin of the Arctic Ocean. Geophys. Res. Lett., 32, L03605, doi:10.1029/2004GL021358.
48. Simpson, J. H., and J. P. Tinker, 2009:Atest of the influence of tidal stream polarity on the structure of turbulent dissipation. Cont. Shelf Res., 29, 320-332.
49. Simpson, J. H., W. R. Crawford, T. P. Rippeth, A. R. Campbell, and J. V. S. Cheok, 1996: The vertical structure of turbulent dissipation in shelf seas. J. Phys. Oceanogr., 26, 1579-1590.
50. Sirevaag, A., and I. Fer, 2009: Early spring oceanic heat fluxes and mixing observed from drift stations north of Svalbard. J. Phys. Oceanogr., 39, 3049-3069.
51. Sundfjord, A., I. Fer, Y. Kasajima, and H. Svendsen, 2007: Observations of turbulent mixing and hydrography in the marginal ice zone of the Barents Sea. J. Geophys. Res., 112, C05008, doi:10.1029/2006JC003524.
52. Turner, J. S., 2010: The melting of ice in the Arctic Ocean: The influence of double-diffusive transport of heat from below. J. Phys. Oceanogr., 40, 249-256.
53. Woodgate, R. A., K. Aagaard, J. H. Swift, K. K. Falkner, and W. M. Smethie Jr., 2005: Pacific ventilation of the Arctic Ocean's lower halocline by upwelling and diapycnal mixing over the continental margin. Geophys. Res. Lett., 32, L18609, doi:10.1029/2005GL023999.