The Effects of Mixed Layer Dynamics on Ice Growth in the Central Arctic

• Main Author: Kitchen, Bruce R.
• Other Authors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA
• Format: Text
• Language: English
• Published: 1992
• Subjects: Physical and Dynamic Oceanography; Snow; Ice and Permafrost; *ICE FORMATION; *MIXED LAYER(MARINE); *HEAT FLUX; *SEA ICE; SIMULATION; TEMPERATURE; THICKNESS; PREDICTIONS; MODELS; VARIATIONS; SALINITY; ICE FORECASTING; OCEANOGRAPHY; ENTRAINMENT; OCEAN MODELS; SURFACE TEMPERATURE; AIR WATER INTERACTIONS; WIND VELOCITY; FEEDBACK; DYNAMICS; THERMODYNAMICS; ONE DIMENSIONAL; ATMOSPHERIC TEMPERATURE; THESES; Arctic; Ice; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA257553; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA257553

The thermodynamic model of Thorndike (1992) is coupled to a one dimensional, two layer ocean entrainment model to study the effect of mixed layer dynamics on ice growth and the variation in the ocean heat flux into the ice due to mixed layer entrainment. Model simulations show (1) the existence of a negative feedback between the ice growth and the mixed layer entrainment; (2) the underlying ocean salinity has a greater effect on the ocean beat flux than does variations in the underlying ocean temperature. Model simulations for a variety of surface forcings and initial conditions demonstrate the need to include mixed layer dynamics for realistic ice prediction in the arctic.