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Sea ice measurements and modelling of the Storfjorden polynya

Sea ice measurements and modelling of the Storfjorden polynya. Lars H. Smedsrud, Ragnheid Skogseth, W. Paul Budgell, Frank Nilsen, Alastair D. Jenkins, and Bjørn Ådlandsvik. Smedsrud and Skogseth (2006). Biggs et al. 2000. Frazil collection thickness & Wind speed.

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Sea ice measurements and modelling of the Storfjorden polynya

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  1. Sea ice measurements and modelling of the Storfjorden polynya Lars H. Smedsrud, Ragnheid Skogseth, W. Paul Budgell, Frank Nilsen, Alastair D. Jenkins, and Bjørn Ådlandsvik

  2. Smedsrud and Skogseth (2006) Biggs et al. 2000

  3. Frazil collection thickness & Wind speed Björk (2000) no length dependancy Alam & Curry 1998 Frazil forms > 4.5 m/s wind !!

  4. Helicopter Electro Magnetic bird campaign, Storfjorden 2006 S. Hendricks and C. Haas (AWI) S. Gerland (NPI) L.H. Smedsrud (BCCR) F. Nilsen (UNIS) Flight track on May 2. 2006

  5. (km) West East (Kapp Lee) South

  6. Scottish Association for Marine Science (SAMS) Ice drifting buoys. Jeremy Wilkinson and Duncan Mercer (SAMS)

  7. Boundary forcing and initialization from large scale Atlantic ROMS runs Sea ice concentration Sea surface temperature Budgell (2005)

  8. Model ice thickness 'validation' - a polynya closing event

  9. Mean ice thickness <0.3m = polynya 3 February 2000 ROMS model results Smedsrud et al (2006) Sea ice classification and polynya area detected by SAR Skogseth et al (2004)

  10. [W/m²] NCEP forcing, Δx = 250 km Wind forcing 0.3 N/m² equals 12-15 m/s Surface fluxes reflects NCEP ice cover

  11. February 2000 mean ice thickness Storfjorden defined by Polynya area calculated inside the limited area Typical polynya width of 20 km [ m ]

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