Simulated Annual and Seasonal Arctic Ocean and Sea-Ice Variability From a High Resolution, Coupled Ice-Ocean Model

The role of the Arctic Ocean in global thermohaline circulation and climate change is not well understood, High resolution, physically realistic simulations of the Arctic Ocean, calibrated and validated with observations and palco-climate data, may provide the spatial and temporal coverage and resol...

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Bibliographic Details
Main Author: Marble, Douglas C.
Other Authors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Format: Text
Language:English
Published: 2001
Subjects:
Physical and Dynamic Oceanography
Snow
Ice and Permafrost
*OCEAN MODELS
*SEA ICE
*ARCTIC OCEAN
THERMAL PROPERTIES
SIMULATION
DIGITAL SYSTEMS
GLOBAL
OCEAN CURRENTS
THESES
PARALLEL PROCESSING
HIGH RESOLUTION
VARIATIONS
BATHYMETRY
SEASONAL VARIATIONS
INTEGRATION
SALINITY
CLIMATOLOGY
WATER MASSES
TRANSFORMATIONS
Arctic
Arctic Ocean
Climate change
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA397317
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA397317
Description
Summary:The role of the Arctic Ocean in global thermohaline circulation and climate change is not well understood, High resolution, physically realistic simulations of the Arctic Ocean, calibrated and validated with observations and palco-climate data, may provide the spatial and temporal coverage and resolution to more accurately characterize Arctic Ocean circulation, large-scale inter-ocean exchanges and allow future conditions to be projected correctly. A 1/12-degree (^9 km) resolution coupled ice-ocean model, optimized for massively parallel computers, was developed. The model employs the latest digital bathymetry and ocean climatology available. Decades of model integration using climatological and realistic daily varying atmospheric forcing were performed. Comparisons of model output with climatic atlases and observations indicate greatly improved representation of circulation, ocean and sea-ice characteristics, mass and property transports and water mass transformations. Areas where model physics and resolution improvements are needed are highlighted as well.

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