A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM

This study investigates sea ice and ocean circulation using a 3‐D, 3.8 km CIOM (Coupled Ice‐Ocean Model) under daily atmospheric forcing for the period 1990–2008. The CIOM was validated using both in situ observations and satellite measurements. The CIOM successfully reproduces some observed dynamic...

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Bibliographic Details
Published in:Journal of Geophysical Research: Oceans
Main Authors: Wang, Jia, Mizobata, Kohei, Bai, Xuezhi, Hu, Haoguo, Jin, Meibing, Yu, Yanling, Ikeda, Moto, Johnson, Walter, Perie, William, Fujisaki, Ayumi
Format: Article in Journal/Newspaper
Language:unknown
Published: AGU 2014
Subjects:
Dipole Anomaly
Coupled Ice‐Ocean Modeling
Landfast Ice
Arctic Ocean
Beaufort Sea
Chukchi Sea
Atmospheric and Oceanic Sciences
Geological Sciences
Science
Arctic
Beaufort Slope
Bering Strait
Herald Valley
Chukchi
Sea ice
Alaska
Online Access:https://hdl.handle.net/2027.42/108088
https://doi.org/10.1002/2013JC009258
id ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/108088
record_format openpolar
institution Open Polar
collection University of Michigan: Deep Blue
op_collection_id ftumdeepblue
language unknown
topic Dipole Anomaly
Coupled Ice‐Ocean Modeling
Landfast Ice
Arctic Ocean
Beaufort Sea
Chukchi Sea
Atmospheric and Oceanic Sciences
Geological Sciences
Science
spellingShingle Dipole Anomaly
Coupled Ice‐Ocean Modeling
Landfast Ice
Arctic Ocean
Beaufort Sea
Chukchi Sea
Atmospheric and Oceanic Sciences
Geological Sciences
Science
Wang, Jia
Mizobata, Kohei
Bai, Xuezhi
Hu, Haoguo
Jin, Meibing
Yu, Yanling
Ikeda, Moto
Johnson, Walter
Perie, William
Fujisaki, Ayumi
A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM
topic_facet Dipole Anomaly
Coupled Ice‐Ocean Modeling
Landfast Ice
Arctic Ocean
Beaufort Sea
Chukchi Sea
Atmospheric and Oceanic Sciences
Geological Sciences
Science
description This study investigates sea ice and ocean circulation using a 3‐D, 3.8 km CIOM (Coupled Ice‐Ocean Model) under daily atmospheric forcing for the period 1990–2008. The CIOM was validated using both in situ observations and satellite measurements. The CIOM successfully reproduces some observed dynamical processes in the region, including the Bering‐inflow‐originated coastal current that splits into three branches: Alaska Coastal Water (ACW), Central Channel branch, and Herald Valley branch. In addition, the Beaufort Slope Current (BSC), the Beaufort Gyre, the East Siberian Current (ESC), mesoscale eddies, and seasonal landfast ice are well simulated. The CIOM also reproduces reasonable interannual variability in sea ice, such as landfast ice, and anomalous open water (less sea ice) during the positive Dipole Anomaly (DA) years, vice versa during the negative DA years. Sensitivity experiments were conducted with regard to the impacts of the Bering Strait inflow (heat transport), onshore wind stress, and sea ice advection on sea ice change, in particular on the landfast ice. It is found that coastal landfast ice is controlled by the following processes: wind forcing, Bering Strait inflow, and sea ice dynamics. Key Points Modeling landfast ice and nearshore processes Reveal mesoscale eddies using a model and theory Nearshore sea ice responds to both +DA and −DA Peer Reviewed http://deepblue.lib.umich.edu/bitstream/2027.42/108088/1/jgrc20680.pdf
format Article in Journal/Newspaper
author Wang, Jia
Mizobata, Kohei
Bai, Xuezhi
Hu, Haoguo
Jin, Meibing
Yu, Yanling
Ikeda, Moto
Johnson, Walter
Perie, William
Fujisaki, Ayumi
author_facet Wang, Jia
Mizobata, Kohei
Bai, Xuezhi
Hu, Haoguo
Jin, Meibing
Yu, Yanling
Ikeda, Moto
Johnson, Walter
Perie, William
Fujisaki, Ayumi
author_sort Wang, Jia
title A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM
title_short A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM
title_full A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM
title_fullStr A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM
title_full_unstemmed A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM
title_sort modeling study of coastal circulation and landfast ice in the nearshore beaufort and chukchi seas using ciom
publisher AGU
publishDate 2014
url https://hdl.handle.net/2027.42/108088
https://doi.org/10.1002/2013JC009258
long_lat ENVELOPE(-145.000,-145.000,71.000,71.000)
ENVELOPE(-175.000,-175.000,71.500,71.500)
geographic Arctic
Arctic Ocean
Beaufort Slope
Bering Strait
Chukchi Sea
Herald Valley
geographic_facet Arctic
Arctic Ocean
Beaufort Slope
Bering Strait
Chukchi Sea
Herald Valley
genre Arctic
Arctic
Arctic Ocean
Beaufort Sea
Bering Strait
Chukchi
Chukchi Sea
Sea ice
Alaska
genre_facet Arctic
Arctic
Arctic Ocean
Beaufort Sea
Bering Strait
Chukchi
Chukchi Sea
Sea ice
Alaska
op_relation Wang, Jia; Mizobata, Kohei; Bai, Xuezhi; Hu, Haoguo; Jin, Meibing; Yu, Yanling; Ikeda, Moto; Johnson, Walter; Perie, William; Fujisaki, Ayumi (2014). "A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM." Journal of Geophysical Research: Oceans 119(6): 3285-3312.
2169-9275
2169-9291
https://hdl.handle.net/2027.42/108088
doi:10.1002/2013JC009258
Journal of Geophysical Research: Oceans
Wang, J., and M. Ikeda ( 2000 ), Arctic oscillation and Arctic sea‐ice oscillation, Geophys. Res. Lett., 27, 1287 – 1290.
Pickart, R. S., T. J. Weingartner, L. J. Pratt, S. Zimmermann, and D. J. Torres ( 2009 ), Flow of winter‐transformed Pacific water into the Western Arctic, Deep Sea Res., Part II, 52 ( 24–26 ), 3175 – 3198.
Proshutinsky, A., et al. ( 2001 ), Multinational effort studies differences among Arctic Ocean models, Eos Trans. AGU, 82 ( 51 ), 637 – 644.
Shimada, K., T. Kamoshida, M. Itoh, S. Nishino, E. Carmack, F. McLaughlin, S. Zimmermann, and A. Proshutinsky ( 2006 ), Pacific Ocean inflow: Influence on catastrophic reduction of sea ice cover in the Arctic Ocean, Geophys. Res. Lett., 33, L08605, doi:10.1029/2005GL025624.
Spall, M. A., R. S. Pickart, P. S. Fratantoni, and A. J. Plueddemann ( 2008 ), Western Arctic shelfbreak eddies: Formation and transport, J. Phys. Oceanogr., 38, 1644 – 1668, doi:10.1175/2007JPO3829.1.
Steele, M., R. Rebecca, and W. Ermold ( 2001 ), PHC: A global ocean hydrography with a high‐quality Arctic Ocean, J. Clim., 14, 2079 – 2087.
Thorndike, A. S., and R. Colony ( 1982 ), Sea ice motion in response to the geostrophic winds, J. Geophys. Res., 87, 5845 – 5852, doi:10.1029/JC087iC08p05845.
Wang, J., and M. Ikeda ( 1997 ), Diagnosing ocean unstable baroclinic waves and Meanders using quasi‐geostrophic equations and Q‐vector method, J. Phys. Oceanogr., 27 ( 6 ), 1158 – 1172.
Wang, J., and M. Ikeda ( 2001 ), Arctic sea‐ice oscillation: Regional and seasonal perspectives, Ann. Glaciol., 33, 481 – 492.
Wang, J., L. A. Mysak, and R. G. Ingram ( 1994 ), A numerical simulation of sea‐ice cover in Hudson Bay, J. Phys. Oceanogr., 24, 2515 – 2533.
Wang, J., M. Jin, V. Patrick, J. Allen, D. Eslinger, C. Mooers, and T. Cooney ( 2001 ), Numerical simulation of the seasonal ocean circulation patterns and thermohaline structure of Prince William Sound, Alaska, Fish. Oceanogr., 10 (Suppl. 1 ), 132 – 148.
Wang, J., Q. Liu, and M. Jin ( 2002 ), A user's guide for a Coupled Ice‐Ocean Model (CIOM) in the Pan‐Arctic and North Atlantic Oceans, Tech. Rep. 02‐01, 65 pp., Int. Arctic Res. Cent.‐Frontier Res. Syst. for Global Change, University of Alaska Fairbanks, Fairbanks, Alaska.
Wang, J., et al. ( 2003 ), Working towards improved small‐scale sea ice and ocean modeling in the Arctic seas, Eos Trans. AGU, 84 ( 34 ), 325, 329 – 330.
Wang, J., Q. Liu, M. Jin, M. Ikeda, and F. J. Saucier ( 2005 ), A coupled ice‐ocean model in the pan‐Arctic and the northern North Atlantic Ocean: Simulation of seasonal cycles, J. Oceanogr., 61, 213 – 233.
Wang, J., K. Mizobata, H. Hu, M. Jin, S. Zhang, W. Johnson, and K. Shimada ( 2008 ), Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model‐data fusion study, Chin. J. Polar Sci., 19 ( 2 ), 168 – 184.
Wang, J., J. Zhang, E. Watanabe, K. Mizobata, M. Ikeda, J. E. Walsh, X. Bai, and B. Wu ( 2009a ), Is the dipole anomaly a major driver to record lows in the Arctic sea ice extent?, Geophys. Res. Lett., 36, L05706, doi:10.1029/2008GL036706.
Wang, J., H. Hu, K. Mizobata, and S. Saitoh ( 2009b ), Seasonal variations of sea ice and ocean circulation in the Bering Sea: A model‐data fusion study, J. Geophys. Res., 114, C02011, doi:10.1029/2008JC004727.
Wang, J., K. Mizobata, M. Jin, and H. Hu ( 2009a ), Sea Ice‐Ocean‐Oilspill Modeling System (SIOMS) for the Nearshore Beaufort and Chukchi seas: Parameterization and Improvement (Phase II), Final Report, OCS Study MMS 2008‐021, 86 pp., Coastal Mar. Inst., Univ. of Alaska.
Wang, J., H. Hu, D. Schwab, G. Leshkevich, D. Beletsky, N. Hawley, and A. Clites ( 2010b ), Development of the Great Lakes Ice‐circulation Model (GLIM): Application to Lake Erie in 2003–2004, J. Great Lakes Res., 36, 425 – 436, doi:10.1016/j.jglr.2010.04.002.
Wang, J., H. Eicken, Y. Yu, X. Bai, H. Hu, K. Mizobata, J. Zhang, M. Ikeda, and J. Overland ( 2014 ), Abrupt Arctic changes and emerging ice‐ocean processes in the Pacific Arctic Region and Bering Sea, in The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment, edited by J. M. Grebmeier and W. Maslowski, Springer, Heidelberg, N. Y.
Watanabe, E. ( 2011 ), Beaufort shelf break eddies and shelf‐basin exchange of Pacific summer water in the western Arctic Ocean detected by satellite and modeling analyses, J. Geophys. Res., 116, C08034, doi:10.1029/2010JC006259.
Watanabe, E., J. Wang, T. Sumi, and H. Hasumi ( 2006 ), Arctic Dipole and its contribution to sea ice export from the Arctic in the last 20th century, Geophys. Res. Lett., 33, L23703, doi:10.1029/2006GL028112.
Weingartner, T. J., D. J. Cavalieri, K. Aagaard, and Y. Sasaki ( 1998 ), Circulation, dense water formation, and outflow on northeast Chukchi shelf, J. Geophys. Res., 103, 7647 – 7661.
Weingartner, T. J., K. Aagaard, R. Woodgate, S. Danielson, Y. Sasaki, and D. J. Cavalieri ( 2005 ), Circulation on the north central Chukchi Sea shelf, Deep Sea Res., Part II, 3150 – 3174.
Winsor, P., and D. Chapman ( 2004 ), Pathways of Pacific water across the Chukchi Sea: A numerical model study, J. Geophys. Res., 109, C03002, doi:10.1029/2003JC001962.
Woodgate, R., T. J. Weingartner, and K. Aagaard ( 2005 ), A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990–1991, Deep Sea Res., Part II, 3116 – 3149.
Woodgate, R. A., T. Weingartner, and R. Lindsay ( 2010 ), The 2007 Bering Strait oceanic heat flux and anomalous Arctic sea‐ice retreat, Geophys. Res. Lett., 37, L01602, doi:10.1029/2009GL041621.
Wu, B., J. Wang, and J. E. Walsh ( 2006 ), Dipole anomaly in the winter Arctic atmosphere and its association with Arctic sea ice motion, J. Clim., 19 ( 2 ), 210 – 225, doi:10.1175/JCLI3619.1.
Yang, J. ( 2006 ), The seasonal variability of the Arctic Ocean Ekman transport and its role in the mixed layer heat and salt fluxes, J. Clim., 19, 5366 – 5387, doi:10.1175/JCLI3892.1.
Yao, T., C. L. Tang, and I. K. Peterson ( 2000 ), Modeling the seasonal variation of sea ice in the Labrador Sea with a coupled multi‐category ice model and the Princeton Ocean Model, J. Geophys. Res., 105, 1153 – 1165.
Yu, Y., H. Stern, C. Fowler, F. Fetterer, and J. Maslinik ( 2013 ), Interannual variability of Arctic landfast ice between 1976–2007, J. Clim., 27, 227 – 243, doi:10.1175/JCLI‐D‐13‐00178.1.
Zhang, J., R. Woodgate, and R. Moritz ( 2010 ), Sea ice response to atmospheric and oceanic forcing in the Bering Sea, J. Phys. Oceanogr., 40 ( 8 ), 1729 – 1747, doi:10.1175/2010JPO4323.1.
Thorndike, A. S., D. A. Rothrock, G. A. Maykut, and R. Colony ( 1975 ), The thickness distribution of sea ice, J. Geophys. Res., 80, 4501 – 4513.
Hu, H., J. Wang, and D.‐R. Wang ( 2011 ), A model‐data study of the 1999 St. Lawrence Island polynya in the Bering Sea, J. Geophys. Res., 116, C12018, doi:10.1029/2011JC007309.
Ikeda, M. ( 1983 ), Linear instability of a current flowing along a bottom slope using a three‐layer model, J. Phys. Oceanogr., 13, 208 – 223.
Ikeda, M., J. Wang, and A. Makshtas ( 2003 ), Importance of clouds to the decaying trend and decadal variability in the Arctic ice cover, J. Meteorol. Soc. Jpn., 81, 179 – 189.
Kantha, L. H., and C. A. Clayson ( 1994 ), An improved mixed layer model for geophysical applications, J. Geophys. Res., 99, 25,235 – 25,266.
König‐Beatty, C., and D. M. Holland ( 2010 ), Modeling landfast sea ice by adding tensile strength, J. Phys. Oceanogr., 40 ( 1 ), 185 – 198.
Blumberg, A. F., and G. L. Mellor ( 1987 ), A description of 3‐D coastal ocean circulation model, in Coastal and Estuarine Sciences 4: 3‐D Coastal Ocean Models, edited by N. S. Heaps, pp. 1 – 16, AGU, Washington, D. C.
Cavalieri, D., P. Gloersen, and J. Zwally ( 1990 ), DMSP SSM/I daily and monthly polar gridded sea ice concentrations [1 Jan 1990 to 31 Dec 2006], edited by J. Maslanik and J. Stroeve, Natl. Snow and Ice Data Cent., Digital Media, Boulder, Colo.
Chao, S.‐Y., and P.‐T. Shaw ( 2002 ), A numerical investigation of slanted convection and subsurface anticyclone generation in an Arctic baroclinic current system, J. Geophys. Res., 107 ( C3 ), 3019, doi:10.1029/2001JC000786.
Chen, C., G. Gao, J. Qi, A. Proshutinsky, R. C. Beardsley, Z. Kowalik, H. Lin, and G. Cowles ( 2009 ), A new high‐resolution unstructured grid finite volume Arctic Ocean model (AO‐FVCOM): An application for tidal studies, J. Geophys. Res., 114, C08017, doi:10.1029/2008JC004941.
Clement, J. L., W. Maslowski, L. W. Cooper, J. M. Grebmeier, and W. Walczowski ( 2005 ), Ocean circulation and exchanges through the northern Bering Sea‐1979–2001 model results, Deep Sea Res., Part II, 52, 3509 – 3540.
Comiso, J. ( 1990 ), DMSP SSM/I daily and monthly polar gridded sea ice concentrations, edited by J. Maslanik and J. Stroeve, Natl. Snow and Ice Data Cent., Boulder, Colo., Digital Media.
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spelling ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/108088 2023-08-20T04:02:55+02:00 A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM Wang, Jia Mizobata, Kohei Bai, Xuezhi Hu, Haoguo Jin, Meibing Yu, Yanling Ikeda, Moto Johnson, Walter Perie, William Fujisaki, Ayumi 2014-06 application/pdf https://hdl.handle.net/2027.42/108088 https://doi.org/10.1002/2013JC009258 unknown AGU Wiley Periodicals, Inc. Wang, Jia; Mizobata, Kohei; Bai, Xuezhi; Hu, Haoguo; Jin, Meibing; Yu, Yanling; Ikeda, Moto; Johnson, Walter; Perie, William; Fujisaki, Ayumi (2014). "A modeling study of coastal circulation and landfast ice in the nearshore Beaufort and Chukchi seas using CIOM." Journal of Geophysical Research: Oceans 119(6): 3285-3312. 2169-9275 2169-9291 https://hdl.handle.net/2027.42/108088 doi:10.1002/2013JC009258 Journal of Geophysical Research: Oceans Wang, J., and M. Ikeda ( 2000 ), Arctic oscillation and Arctic sea‐ice oscillation, Geophys. Res. Lett., 27, 1287 – 1290. Pickart, R. S., T. J. Weingartner, L. J. Pratt, S. Zimmermann, and D. J. Torres ( 2009 ), Flow of winter‐transformed Pacific water into the Western Arctic, Deep Sea Res., Part II, 52 ( 24–26 ), 3175 – 3198. Proshutinsky, A., et al. ( 2001 ), Multinational effort studies differences among Arctic Ocean models, Eos Trans. AGU, 82 ( 51 ), 637 – 644. Shimada, K., T. Kamoshida, M. Itoh, S. Nishino, E. Carmack, F. McLaughlin, S. Zimmermann, and A. Proshutinsky ( 2006 ), Pacific Ocean inflow: Influence on catastrophic reduction of sea ice cover in the Arctic Ocean, Geophys. Res. Lett., 33, L08605, doi:10.1029/2005GL025624. Spall, M. A., R. S. Pickart, P. S. Fratantoni, and A. J. Plueddemann ( 2008 ), Western Arctic shelfbreak eddies: Formation and transport, J. Phys. Oceanogr., 38, 1644 – 1668, doi:10.1175/2007JPO3829.1. Steele, M., R. Rebecca, and W. Ermold ( 2001 ), PHC: A global ocean hydrography with a high‐quality Arctic Ocean, J. Clim., 14, 2079 – 2087. Thorndike, A. S., and R. Colony ( 1982 ), Sea ice motion in response to the geostrophic winds, J. Geophys. Res., 87, 5845 – 5852, doi:10.1029/JC087iC08p05845. Wang, J., and M. Ikeda ( 1997 ), Diagnosing ocean unstable baroclinic waves and Meanders using quasi‐geostrophic equations and Q‐vector method, J. Phys. Oceanogr., 27 ( 6 ), 1158 – 1172. Wang, J., and M. Ikeda ( 2001 ), Arctic sea‐ice oscillation: Regional and seasonal perspectives, Ann. Glaciol., 33, 481 – 492. Wang, J., L. A. Mysak, and R. G. Ingram ( 1994 ), A numerical simulation of sea‐ice cover in Hudson Bay, J. Phys. Oceanogr., 24, 2515 – 2533. Wang, J., M. Jin, V. Patrick, J. Allen, D. Eslinger, C. Mooers, and T. Cooney ( 2001 ), Numerical simulation of the seasonal ocean circulation patterns and thermohaline structure of Prince William Sound, Alaska, Fish. Oceanogr., 10 (Suppl. 1 ), 132 – 148. Wang, J., Q. Liu, and M. Jin ( 2002 ), A user's guide for a Coupled Ice‐Ocean Model (CIOM) in the Pan‐Arctic and North Atlantic Oceans, Tech. Rep. 02‐01, 65 pp., Int. Arctic Res. Cent.‐Frontier Res. Syst. for Global Change, University of Alaska Fairbanks, Fairbanks, Alaska. Wang, J., et al. ( 2003 ), Working towards improved small‐scale sea ice and ocean modeling in the Arctic seas, Eos Trans. AGU, 84 ( 34 ), 325, 329 – 330. Wang, J., Q. Liu, M. Jin, M. Ikeda, and F. J. Saucier ( 2005 ), A coupled ice‐ocean model in the pan‐Arctic and the northern North Atlantic Ocean: Simulation of seasonal cycles, J. Oceanogr., 61, 213 – 233. Wang, J., K. Mizobata, H. Hu, M. Jin, S. Zhang, W. Johnson, and K. Shimada ( 2008 ), Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas: A model‐data fusion study, Chin. J. Polar Sci., 19 ( 2 ), 168 – 184. Wang, J., J. Zhang, E. Watanabe, K. Mizobata, M. Ikeda, J. E. Walsh, X. Bai, and B. Wu ( 2009a ), Is the dipole anomaly a major driver to record lows in the Arctic sea ice extent?, Geophys. Res. Lett., 36, L05706, doi:10.1029/2008GL036706. Wang, J., H. Hu, K. Mizobata, and S. Saitoh ( 2009b ), Seasonal variations of sea ice and ocean circulation in the Bering Sea: A model‐data fusion study, J. Geophys. Res., 114, C02011, doi:10.1029/2008JC004727. Wang, J., K. Mizobata, M. Jin, and H. Hu ( 2009a ), Sea Ice‐Ocean‐Oilspill Modeling System (SIOMS) for the Nearshore Beaufort and Chukchi seas: Parameterization and Improvement (Phase II), Final Report, OCS Study MMS 2008‐021, 86 pp., Coastal Mar. Inst., Univ. of Alaska. Wang, J., H. Hu, D. Schwab, G. Leshkevich, D. Beletsky, N. Hawley, and A. Clites ( 2010b ), Development of the Great Lakes Ice‐circulation Model (GLIM): Application to Lake Erie in 2003–2004, J. Great Lakes Res., 36, 425 – 436, doi:10.1016/j.jglr.2010.04.002. Wang, J., H. Eicken, Y. Yu, X. Bai, H. Hu, K. Mizobata, J. Zhang, M. Ikeda, and J. Overland ( 2014 ), Abrupt Arctic changes and emerging ice‐ocean processes in the Pacific Arctic Region and Bering Sea, in The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment, edited by J. M. Grebmeier and W. Maslowski, Springer, Heidelberg, N. Y. Watanabe, E. ( 2011 ), Beaufort shelf break eddies and shelf‐basin exchange of Pacific summer water in the western Arctic Ocean detected by satellite and modeling analyses, J. Geophys. Res., 116, C08034, doi:10.1029/2010JC006259. Watanabe, E., J. Wang, T. Sumi, and H. Hasumi ( 2006 ), Arctic Dipole and its contribution to sea ice export from the Arctic in the last 20th century, Geophys. Res. Lett., 33, L23703, doi:10.1029/2006GL028112. Weingartner, T. J., D. J. Cavalieri, K. Aagaard, and Y. Sasaki ( 1998 ), Circulation, dense water formation, and outflow on northeast Chukchi shelf, J. Geophys. Res., 103, 7647 – 7661. Weingartner, T. J., K. Aagaard, R. Woodgate, S. Danielson, Y. Sasaki, and D. J. Cavalieri ( 2005 ), Circulation on the north central Chukchi Sea shelf, Deep Sea Res., Part II, 3150 – 3174. Winsor, P., and D. Chapman ( 2004 ), Pathways of Pacific water across the Chukchi Sea: A numerical model study, J. Geophys. Res., 109, C03002, doi:10.1029/2003JC001962. Woodgate, R., T. J. Weingartner, and K. Aagaard ( 2005 ), A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990–1991, Deep Sea Res., Part II, 3116 – 3149. Woodgate, R. A., T. Weingartner, and R. Lindsay ( 2010 ), The 2007 Bering Strait oceanic heat flux and anomalous Arctic sea‐ice retreat, Geophys. Res. Lett., 37, L01602, doi:10.1029/2009GL041621. Wu, B., J. Wang, and J. E. Walsh ( 2006 ), Dipole anomaly in the winter Arctic atmosphere and its association with Arctic sea ice motion, J. Clim., 19 ( 2 ), 210 – 225, doi:10.1175/JCLI3619.1. Yang, J. ( 2006 ), The seasonal variability of the Arctic Ocean Ekman transport and its role in the mixed layer heat and salt fluxes, J. Clim., 19, 5366 – 5387, doi:10.1175/JCLI3892.1. Yao, T., C. L. Tang, and I. K. Peterson ( 2000 ), Modeling the seasonal variation of sea ice in the Labrador Sea with a coupled multi‐category ice model and the Princeton Ocean Model, J. Geophys. Res., 105, 1153 – 1165. Yu, Y., H. Stern, C. Fowler, F. Fetterer, and J. Maslinik ( 2013 ), Interannual variability of Arctic landfast ice between 1976–2007, J. Clim., 27, 227 – 243, doi:10.1175/JCLI‐D‐13‐00178.1. Zhang, J., R. Woodgate, and R. Moritz ( 2010 ), Sea ice response to atmospheric and oceanic forcing in the Bering Sea, J. Phys. Oceanogr., 40 ( 8 ), 1729 – 1747, doi:10.1175/2010JPO4323.1. Thorndike, A. S., D. A. Rothrock, G. A. Maykut, and R. Colony ( 1975 ), The thickness distribution of sea ice, J. Geophys. Res., 80, 4501 – 4513. Hu, H., J. Wang, and D.‐R. Wang ( 2011 ), A model‐data study of the 1999 St. Lawrence Island polynya in the Bering Sea, J. Geophys. Res., 116, C12018, doi:10.1029/2011JC007309. Ikeda, M. ( 1983 ), Linear instability of a current flowing along a bottom slope using a three‐layer model, J. Phys. Oceanogr., 13, 208 – 223. Ikeda, M., J. Wang, and A. Makshtas ( 2003 ), Importance of clouds to the decaying trend and decadal variability in the Arctic ice cover, J. Meteorol. Soc. Jpn., 81, 179 – 189. Kantha, L. H., and C. A. Clayson ( 1994 ), An improved mixed layer model for geophysical applications, J. Geophys. Res., 99, 25,235 – 25,266. König‐Beatty, C., and D. M. Holland ( 2010 ), Modeling landfast sea ice by adding tensile strength, J. Phys. Oceanogr., 40 ( 1 ), 185 – 198. Blumberg, A. F., and G. L. Mellor ( 1987 ), A description of 3‐D coastal ocean circulation model, in Coastal and Estuarine Sciences 4: 3‐D Coastal Ocean Models, edited by N. S. Heaps, pp. 1 – 16, AGU, Washington, D. C. Cavalieri, D., P. Gloersen, and J. Zwally ( 1990 ), DMSP SSM/I daily and monthly polar gridded sea ice concentrations [1 Jan 1990 to 31 Dec 2006], edited by J. Maslanik and J. Stroeve, Natl. Snow and Ice Data Cent., Digital Media, Boulder, Colo. Chao, S.‐Y., and P.‐T. Shaw ( 2002 ), A numerical investigation of slanted convection and subsurface anticyclone generation in an Arctic baroclinic current system, J. Geophys. Res., 107 ( C3 ), 3019, doi:10.1029/2001JC000786. Chen, C., G. Gao, J. Qi, A. Proshutinsky, R. C. Beardsley, Z. Kowalik, H. Lin, and G. Cowles ( 2009 ), A new high‐resolution unstructured grid finite volume Arctic Ocean model (AO‐FVCOM): An application for tidal studies, J. Geophys. Res., 114, C08017, doi:10.1029/2008JC004941. Clement, J. L., W. Maslowski, L. W. Cooper, J. M. Grebmeier, and W. Walczowski ( 2005 ), Ocean circulation and exchanges through the northern Bering Sea‐1979–2001 model results, Deep Sea Res., Part II, 52, 3509 – 3540. Comiso, J. ( 1990 ), DMSP SSM/I daily and monthly polar gridded sea ice concentrations, edited by J. Maslanik and J. Stroeve, Natl. Snow and Ice Data Cent., Boulder, Colo., Digital Media. IndexNoFollow Dipole Anomaly Coupled Ice‐Ocean Modeling Landfast Ice Arctic Ocean Beaufort Sea Chukchi Sea Atmospheric and Oceanic Sciences Geological Sciences Science Article 2014 ftumdeepblue https://doi.org/10.1002/2013JC00925810.1029/2005GL02562410.1175/2007JPO3829.110.1029/JC087iC08p0584510.1029/2008JC00472710.1016/j.jglr.2010.04.00210.1029/2010JC00625910.1029/2006GL02811210.1029/2003JC00196210.1029/2009GL04162110.1175/JCLI3619.110.1175/JCL 2023-07-31T21:14:48Z This study investigates sea ice and ocean circulation using a 3‐D, 3.8 km CIOM (Coupled Ice‐Ocean Model) under daily atmospheric forcing for the period 1990–2008. The CIOM was validated using both in situ observations and satellite measurements. The CIOM successfully reproduces some observed dynamical processes in the region, including the Bering‐inflow‐originated coastal current that splits into three branches: Alaska Coastal Water (ACW), Central Channel branch, and Herald Valley branch. In addition, the Beaufort Slope Current (BSC), the Beaufort Gyre, the East Siberian Current (ESC), mesoscale eddies, and seasonal landfast ice are well simulated. The CIOM also reproduces reasonable interannual variability in sea ice, such as landfast ice, and anomalous open water (less sea ice) during the positive Dipole Anomaly (DA) years, vice versa during the negative DA years. Sensitivity experiments were conducted with regard to the impacts of the Bering Strait inflow (heat transport), onshore wind stress, and sea ice advection on sea ice change, in particular on the landfast ice. It is found that coastal landfast ice is controlled by the following processes: wind forcing, Bering Strait inflow, and sea ice dynamics. Key Points Modeling landfast ice and nearshore processes Reveal mesoscale eddies using a model and theory Nearshore sea ice responds to both +DA and −DA Peer Reviewed http://deepblue.lib.umich.edu/bitstream/2027.42/108088/1/jgrc20680.pdf Article in Journal/Newspaper Arctic Arctic Arctic Ocean Beaufort Sea Bering Strait Chukchi Chukchi Sea Sea ice Alaska University of Michigan: Deep Blue Arctic Arctic Ocean Beaufort Slope ENVELOPE(-145.000,-145.000,71.000,71.000) Bering Strait Chukchi Sea Herald Valley ENVELOPE(-175.000,-175.000,71.500,71.500) Journal of Geophysical Research: Oceans 119 6 3285 3312

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