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

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...

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Bibliographic Details
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
Description
Summary: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.

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