Mathematics – Logic
Scientific paper
Nov 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3321501v&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 21, CiteID L21501
Mathematics
Logic
3
Cryosphere: Sea Ice (4540), Cryosphere: Energy Balance, Cryosphere: Thermodynamics (1011, 3611, 8411), Cryosphere: Thermal Regime, Cryosphere: Properties
Scientific paper
The salinity of sea ice affects its physical and ecological properties. Here, a multilayer one-dimensional halo-thermodynamic sea ice model is used to simulate the vertical salinity profile of undeformed Arctic sea ice. The model successfully reproduces the desalination pattern observed in first-year (FY) and multi-year (MY) ice. The model can also be integrated with a prescribed, time-independent salinity profile. Substantial differences in the simulated mass balance and ice-ocean salt flux arise depending on the salinity. After 10 years into the simulation, the annual mean ice thickness is 2.85 m with the interactive halodynamic component, compared to 2.53 m (2.29 m) with a prescribed, time-independent, vertically varying (constant) salinity profile. Modelling sea ice salinity is especially important when sea ice is transitioning from a MY to FY ice regime. Thus including a halodynamic component in sea ice models would significantly improve simulations of future climate.
Bitz Cecilia M.
Fichefet Thierry
Vancoppenolle Martin
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