Evaluation of Arctic Sea Ice Thickness Simulated by Arctic Ocean Model Intercomparison Project Models
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Authors
Johnson, Mark
Proshuntinsky, Andrew
Aksenov, Yevgeny
Nguyen, An T.
Lindsay, Ron
Haas, Christian
Zhang, Jinlun
Diansky, Nikolay
Kwok, Ron
Maslowski, Wieslaw
Subjects
ARCTIC REGIONS
SEA ICE
THICKNESS
SIMULATION
ARCTIC OCEAN
OCEAN MODELS
ICE, CLOUD AND LAND ELEVATION SATELLITE
BOUNDARY CONDITIONS
BEAUFORT SEA (NORTH AMERICA)
ELECTROMAGNETIC MEASUREMENT
AIRBORNE EQUIPMENT
ARCTIC OCEAN
SEA ICE
MODELS
SEA ICE
THICKNESS
SIMULATION
ARCTIC OCEAN
OCEAN MODELS
ICE, CLOUD AND LAND ELEVATION SATELLITE
BOUNDARY CONDITIONS
BEAUFORT SEA (NORTH AMERICA)
ELECTROMAGNETIC MEASUREMENT
AIRBORNE EQUIPMENT
ARCTIC OCEAN
SEA ICE
MODELS
Advisors
Date of Issue
2012-08
Date
Aug 01, 2012
Publisher
Language
Abstract
Six Arctic Ocean Model Intercomparison Project model simulations are compared with estimates of sea ice thickness derived from pan-Arctic satellite freeboard measurements (2004-2008); airborne electromagnetic measurements (2001-2009); ice draft data from moored instruments in Fram Strait, the Greenland Sea, and the Beaufort Sea (1992-2008) and from submarines (1975-2000); and drill hole data from the Arctic basin, Laptev, and East Siberian marginal seas (1982-1986) and coastal stations (1998-2009). Despite an assessment of six models that differ in numerical methods, resolution, domain, forcing, and boundary conditions, the models generally overestimate the thickness of measured ice thinner than approximately 2 mand underestimate the thickness of ice measured thicker than about approximately 2m. In the regions of flat immobile landfast ice (shallow Siberian Seas with depths less than 25-30 m), the models generally overestimate both the total observed sea ice thickness and rates of September and October ice growth from observations by more than 4 times and more than one standard deviation, respectively. The models do not reproduce conditions of fast ice formation and growth. Instead, the modeled fast ice is replaced with pack ice which drifts, generating ridges of increasing ice thickness, in addition to thermodynamic ice growth. Considering all observational data sets, the better correlations and smaller differences from observations are from the Estimating the Circulation and Climate of the Ocean, Phase II and Pan-Arctic Ice Ocean Modeling and Assimilation System models.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.1029/2011JC007257
Series/Report No
Department
Organization
Goddard Space Flight Center
Jet Propulsion Laboratory
Identifiers
NPS Report Number
Sponsors
Funder
ARC-0804180 (M.J.); ARC-0804010 (A.P.); ARC-0805141 (W.M.); ARC080789; ARC0908769 (J.Z.); ARC-0804010; 09-05-00266; 09-05-01231
Format
Citation
Journal of Geophysical Research; p. C00D13; Volume 117; Issue C8
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.