Barotropic instability in the West Spitsbergen Current

Journal of Geophysical Research: Oceans

Volumn 115, Issue 7, 2010, Pages

  Teigen, S H ^a   Nilsen, F ^a,b   Gjevik, B ^c  

^a UNIVERSITY CENTRE IN SVALBARD   (Norway)

^b UNIVERSITY OF BERGEN   (Norway)

^c UNIVERSITY OF OSLO   (Norway)

Author keywords

[No Author keywords available]

Indexed keywords

CONVERGENCE OF NUMERICAL METHODS; COOLING; DATA STRUCTURES; MOORING; OCEAN HABITATS; STABILITY; VORTICITY; WAVELET TRANSFORMS;

ARCTIC OCEAN; ATLANTIC WATER; BAROTROPIC; COMPLEX DEMODULATION ANALYSIS; CONTINENTAL SLOPE; COOLING PROCESS; COOLING RATES; CURRENT METERS; CURRENT PROFILE; DATA RECORDS; SHELF BREAK; STABILITY ANALYSIS; SVALBARD; TIME INTERVAL; TRANSIENT SIGNAL; VARYING BACKGROUND; VORTICITY WAVES; WATER MASS; WEST SPITSBERGEN CURRENTS;

OCEAN CURRENTS;

BAROTROPIC INSTABILITY; CONTINENTAL SLOPE; COOLING; DATABASE; HEAT BUDGET; MOORING SYSTEM; NUMERICAL MODEL; PERIODICITY; SHELF BREAK; TOPOGRAPHY; VORTICITY; WATER EXCHANGE; WATER MASS; WAVELENGTH; WAVELET ANALYSIS;

ARCTIC; ARCTIC OCEAN; ATLANTIC OCEAN; SVALBARD; SVALBARD AND JAN MAYEN; WEST SPITSBERGEN CURRENT;

EID: 77955191624     PISSN: None     EISSN: 21699291     Source Type: Journal    
DOI: 10.1029/2009JC005996     Document Type: Article

References (43)

1. Aagaard, K., and P. Greisman (1975), Toward new mass and heat budgets for the Arctic Ocean, J. Geophys. Res., 80(27), 3821-3827.
2. Aagaard, K., A. Foldvik, and S. R. Hillman (1987), The West Spitsbergen Current: Disposition and water mass transformation, J. Geophys. Res., 92(C4), 3778-3784.
3. Bourke, R. H., A. M. Weigel, and R. G. Paquette (1988), The westward turning branch of the West Spitsbergen Current, J. Geophys. Res., 93(C11), 14,065-14,077.
4. Boyd, T. J., and E. A. D'Asaro (1994), Cooling of the West Spitsbergen Current: Wintertime observations west of Svalbard, J. Geophys. Res., 99(C11), 22,597-22,618.
5. Collings, I. L., and R. Grimshaw (1980), The effect of topography on the stability of a barotropic coastal current, Dyn. Atmos. Oceans, 10, 83-106.
6. Collings, I. L., and R. Grimshaw (1984), Stable and unstable barotropic waves in a coastal current, Geophys. Astrophys. Fluid Dyn., 29, 179-220.
7. Cottier, F., V. Tverberg, M. Inall, H. Svendsen, F. Nilsen, and C. Griffiths (2005), Water mass modification in an Arctic fjord through cross-shelf exchange: The seasonal hydrography of Kongsfjorden, Svalbard, J. Geophys. Res., 110, C12005, doi:10.1029/2004JC002757. (Pubitemid 43169356)
8. Davies, A. M., J. Xing, and B. Gjevik (2003), Barotropic eddy generation by flow instability at the shelf edge: Sensitivity to open boundary conditions, inflow and diffusion, J. Geophys. Res., 108(C2), 3035, doi:10.1029/ 2001JC001137.
9. Davies, K. A., J. J. Leichter, J. L. Hench, and S. G. Monismith (2008), Effects of western boundary current dynamics on the internal wave field of the southeast Florida shelf, J. Geophys. Res., 113, C09010, doi:10.1029/ 2007JC004699.
10. 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 AtlanticWater warm anomaly along the Eurasian Basin margins, J. Geophys. Res., 113, C05023, doi:10.1029/2007JC004158.
11. Emery, W. J., and R. E. Thomson (Eds.) (2001), Data Analysis Methods in Physical Oceanography, 2nd ed., Elsevier, Amsterdam.
12. Fahrbach, E., G. Rohardt, U. Schauer, J. Meincke, S. Østerhus, and J. Verduin (2003), Direct measurements of heat and mass transports through Fram Strait, ICES Mar. Sci. Symp., 291, 378-381.
13. Gascard, J.-C., C. Richez, and C. Rouault (1995), New insights on largescale oceanography in Fram Strait: The West Spitsbergen Current, in Arctic Oceanography: Marginal Ice Zones and Continental Shelves, Coastal Estuarine Stud., vol.49, pp. 131-182, AGU, Washington, D. C.
14. Gjevik, B. (2002), Unstable and neutrally stable modes in barotropic and baroclinic shelf slope currents, Preprint Ser. 1, Dep. of Math., Univ. of Oslo, Oslo.
15. Hall, R. E. (1980), A note on a semicircle theorem, Dyn. Atmos. Oceans, 10, 113-121.
16. Hanzlick, D. J. (1983), The West Spitzbergen Current: Transport, forcing and variability, Ph.D. thesis, Univ. of Wash., Seattle.
17. Helland-Hansen, B., and F. Nansen (1912), The Sea West of Spitsbergen, Vidensk. Skr. I Mat. Naturvidensk. Klasse, vol.2, 89 pp., Jacob Dybwad, Oslo.
18. Howard, L. N. (1961), Note on a paper of John W. Miles, J. Fluid Mech., 10, 509-512.
19. Jakobsson, M., R. Macnab, L. Mayer, R. Anderson, M. Edwards, J. Hatzky, H. W. Schenke, and P. Johnson (2008), An improved bathymetric portrayal of the Arctic Ocean: Implications for ocean modeling and geological, geophysical and oceanographic analyses, Geophys. Res. Lett., 35, L07602, doi:10.1029/ 2008GL033520. (Pubitemid 351858638)
20. Johannessen, J. A., et al. (1987), Mesoscale eddies in the Fram Strait marginal ice zone during the 1983 and 1984 Marginal Ice Zone Experiments, J. Geophys. Res., 92(C7), 6754-6772.
21. Johannessen, O. M., J. A. Johannessen, J. Morison, B. A. Farrelly, and E. A. S. Svendsen (1983), Oceanographic conditions in the marginal ice zone north of Svalbard in early fall 1979 with an emphasis on mesoscale processes, J. Geophys. Res., 88(C5), 2755-2769.
22. Kasajima, Y., and H. Svendsen (2002), Tidal features in the Fram Strait, Cont. Shelf Res., 22(17), 2461-2477, doi:10.1016/S0278-4343(02)00132-2. (Pubitemid 35371795)
23. Lilly, J. M., P. B. Rhines, F. Schott, K. Lavender, J. Lazier, U. Send, and E. D'Asaro (2003), Observations of the Labrador Sea eddy field, Prog. Oceanogr., 59(1), 75-176.
24. Livingstone, D., and T. C. Royer (1980), Eddy propagation determined from rotary spectra, Deep Sea Res., Part A, 27, 823-835.
25. Manley, T. (1995), Branching of Atlantic Water within the Greenland- Spitsbergen Passage: An estimate of recirculation, J. Geophys. Res., 100(C10), 20,627-20,634.
26. Morison, J. (1991), Seasonal variations in the West Spitsbergen Current estimated from bottom pressure measurements, J. Geophys. Res., 96(C10), 18,381-18,395.
27. Mysak, L. A. (1980), Recent advances in shelf wave dynamics, Rev. Geophys., 18(1), 211-241.
28. Niiler, P. P., and L. A. Mysak (1971), Barotropic waves along an eastern continental shelf, Geophys. Fluid Dyn., 2, 273-288.
29. Nilsen, F., B. Gjevik, and U. Schauer (2006), Cooling of the West Spitsbergen Current: Isopycnal diffusion by topographic vorticity waves, J. Geophys. Res., 111, C08012, doi:10.1029/2005JC002991.
30. Pedlosky, J. (1987), Geophysical Fluid Dynamics, 2nd ed., Springer, New York.
31. Poulin, F. J., and G. R. Flierl (2005), The influence of topography on the stability of jets, J. Phys. Oceanogr., 35, 811-825.
32. Press, W. H., S. A. Teukolsky, W. T. Vetterling, and B. P. Flannery (1992), Numerical Recipes in Fortran 77: The Art of Scientific Computing, vol.1, 2nd ed., Cambridge Univ. Press, Cambridge.
33. Quadfasel, D., J.-C. Gascard, and K.-P. Koltermann (1987), Large-scale oceanography in Fram Strait during the 1984 Marginal Ice Zone Experiment, J. Geophys. Res., 92(C7), 6719-6728.
34. Saloranta, T. M., and P. M. Haugan (2001), Interannual variability in the hydrography of Atlantic water northwest of Svalbard, J. Geophys. Res., 106(C7), 13,931-13,943.
35. Saloranta, T. M., and P. M. Haugan (2004), Northward cooling and freshening of the warm core of the West Spitsbergen Current, Polar Res., 23(1), 79-88.
36. Saloranta, T. M., and H. Svendsen (2001), Across the Arctic front west of Spitsbergen: High-resolution CTD sections from 1998-2000, Polar Res., 20(2), 177-184.
37. Schauer, U., E. Fahrbach, S. Østerhus, and G. Rohardt (2004), Arctic warming through the Fram Strait: Oceanic heat transport from 3 years of measurements, J. Geophys. Res., 109, C06026, doi:10.1029/ 2003JC001823.
38. Schauer, U., A. Beszczynska-Möller,W.Walczowski, E. Fahrbach, J. Piechura, and E. Hansen (2008), Variation of measured heat flow through the Fram Strait between 1997 and 2006, in Arctic-Subarctic Ocean Fluxes, edited by R. R. Dickson, J. Meincke, and P. Rhines, pp. 65-85, Springer, Dordrecht, Netherlands.
39. Thiem, O., J. Berntsen, and B. Gjevik (2006), Development of eddies in an idealised shelf slope area due to an along slope barotropic jet, Cont. Shelf Res., 26(12-13), 1481-1495, doi:10.1016/j.csr.2006.02.016. (Pubitemid 44107610)
40. Torrence, C., and G. P. Compo (1998), A practical guide to wavelets, Bull. Am. Meteorol. Soc., 79(1), 61-78.
41. Tverberg, V., and O. A. Nst (2009), Eddy overturning across a shelf edge front: Kongsfjorden, West Spitsbergen, J. Geophys. Res., 114, C04024, doi:10.1029/2008JC005106.
42. Walczowski, W., and J. Piechura (2007), Pathways of the Greenland Sea warming, Geophys. Res. Lett., 34, L10608, doi:10.1029/2007GL029974. (Pubitemid 47064826)
43. Walczowski, W., J. Piechura, R. Osinski, and P. Wieczorek (2005), The West Spitsbergen Current volume and heat transport from synoptic observations in summer, Deep Sea Res., Part I, 52, 1374-1391, doi:10.1016/j. dsr.2005.03.009.