Regime shift of the dominant factor for halocline depth in the Canada Basin during 1990-2008

MU Longjiang; ZHAO Jinping; ZHONG Wenli

doi:10.1007/s13131-016-0883-0

Volume 36 Issue 1

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > Acta Oceanologica Sinica > 2017 > 36(1): 35-43

MU Longjiang, ZHAO Jinping, ZHONG Wenli. Regime shift of the dominant factor for halocline depth in the Canada Basin during 1990-2008[J]. Acta Oceanologica Sinica, 2017, 36(1): 35-43. doi: 10.1007/s13131-016-0883-0

Citation:

MU Longjiang, ZHAO Jinping, ZHONG Wenli. Regime shift of the dominant factor for halocline depth in the Canada Basin during 1990-2008[J]. Acta Oceanologica Sinica, 2017, 36(1): 35-43. doi: 10.1007/s13131-016-0883-0

Citation:

PDF( 20140 KB)

Regime shift of the dominant factor for halocline depth in the Canada Basin during 1990-2008

doi: 10.1007/s13131-016-0883-0

Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China

Received Date: 2016-01-06
Rev Recd Date: 2016-03-02

Abstract

Abstract

The World Ocean Database (WOD) is used to evaluate the halocline depth simulated by an ice-ocean coupled model in the Canada Basin during 1990-2008. Statistical results show that the simulated halocline is reliable. Comparing of the September sea ice extent between simulation and SSM/I dataset, a consistent interannual variability is found between them. Moreover, both the simulated and observed September sea ice extent show staircase declines in 2000-2008 compared to 1990-1999. That supports that the abrupt variations of the ocean surface stress curl anomaly in 2000-2008 are caused by rapid sea ice melting and also in favor of the realistic existence of the simulated variations. Responses to these changes can be found in the upper ocean circulation and the intermediate current variations in these two phases as well. The analysis shows that seasonal variations of the halocline are regulated by the seasonal variations of the Ekman pumping. On interannual time scale, the variations of the halocline have an inverse relationship with the ocean surface stress curl anomaly after 2000, while this relationship no longer applies in the 1990s. It is pointed out that the regime shift in the Canada Basin can be derived to illustrate this phenomenon. Specifically, the halocline variations are dominated by advection in the 1990s and Ekman pumping in the 2000s respectively. Furthermore, the regime shift is caused by changing Transpolar Drift pathway and Ekman pumping area due to spatial deformation of the center Beaufort high (BH) relative to climatology.
- Canada Basin,
- Beaufort high,
- Transpolar Drift,
- circumpolar boundary current,
- halocline depth,
- freshwater

FullText(HTML)

References(37)

References

Aagaard K, Carmack E C. 1989. The role of sea ice and other fresh wa-ter in the arctic circulation. Journal of Geophysical Research:Oceans (1978-2012), 94(C10):14485-14498

Adcroft A, Campin J M, Hill C, et al. 2004. Implementation of an at-mosphere-ocean general circulation model on the expanded spherical cube. Monthly Weather Review, 132(12):2845-2863

Carmack E C. 2000. The Arctic Ocean's freshwater budget:sources, storage and export. In:Lewis E L, Jones E P, Lemke P, et al., eds. The Freshwater Budget of the Arctic Ocean. Berlin:Springer, 91-126

Carmack E, McLaughlin F, Yamamoto-Kawai M, et al. 2008. Freshwa-ter storage in the northern ocean and the special role of the Beaufort gyre. In:Dickson R R, Meincke J, Rhines P, eds. Arctic-Subarctic Ocean Fluxes. Berlin:Springer, 145-169

Chu P C, Fan Chenwu. 2011. Maximum angle method for determin-ing mixed layer depth from seaglider data. Journal of Oceano-graphy, 67(2):219-230

Condron A, Winsor P, Hill C, et al. 2009. Simulated response of the arctic freshwater budget to extreme NAO wind forcing. Journal of Climate, 22(9):2422-2437

Cushman-Roisin, Benoit, 2011. Jean-Marie Beckers. Introduction to Geophysical Fluid Dynamics:Physical and Numerical Aspects. Vol. 101. Academic Press

Daru V, Tenaud C. 2004. High order one-step monotonicity-pre-serving schemes for unsteady compressible flow calculations. Journal of Computational Physics, 193(2):563-594

Giles K A, Laxon S W, Ridout A L, et al. 2012. Western Arctic Ocean freshwater storage increased by wind-driven spin-up of the Beaufort gyre. Nature Geoscience, 5(3):194-197

Heimbach P, Menemenlis D, Losch M, et al. 2010. On the formulation of seaice models:Part 2. Lessons from multi-year adjoint seaice export sensitivities through the Canadian Arctic Ar-chipelago. Ocean Modelling, 33(1-2):145-158

Hibler III W D. 1979. A dynamic thermodynamic sea ice model. Journal of Physical Oceanography, 9(4):815-846

Holloway G. 2008. Observing global ocean topostrophy. Journal of Geophysical Research:Oceans (1978-2012), 113(C7):C07054

Jackett D R, Mcdougall T J. 1995. Minimal adjustment of hydrographic profiles to achieve static stability. Journal of Atmospheric and Oceanic Technology, 12(2):381-389

Karcher M, Smith J N, Kauker F, et al. 2012. Recent changes in Arctic Ocean circulation revealed by iodine-129 observations and modeling. Journal of Geophysical Research:Oceans (1978-2012), 117(C8):C08007

Lammers R B, Shiklomanov A I, Vörösmarty C J, et al. 2001. Assess-ment of contemporary arctic river runoff based on observation-al discharge records. Journal of Geophysical Research:Atmo-spheres (1984-2012), 106(D4):3321-3334

Large W G, McWilliams J C, Doney S C. 1994. Oceanic vertical mixing:a review and a model with a nonlocal boundary layer paramet-erization. Reviews of Geophysics, 32(4):363-404

Large W G, Pond S. 1982. Sensible and latent heat flux measurements over the ocean. Journal of Physical Oceanography, 12(5):464-482

Lique C, Johnson H L, Davis P E D. 2015. On the interplay between the circulation in the surface and the intermediate layers of the Arctic Ocean. Journal of Physical Oceanography, 45(5):1393-1409

Losch M, Menemenlis D, Campin J M, et al. 2010. On the formulation of seaice models:Part 1. effects of different solver implementations and parameterizations. Ocean Modelling, 33(1-2):129-144

Marshall J, Adcroft A, Hill C, et al. 1997. A finite-volume, incompress-ible Navier Stokes model for studies of the ocean on parallel computers. Journal of Geophysical Research:Oceans, 102(C3):5753-5766

McLaughlin F A, Carmack E C, Williams W J, et al. 2009. Joint effects of boundary currents and thermohaline intrusions on the warming of Atlantic water in the Canada Basin, 1993-2007. Journal of Geophysical Research:Oceans (1978-2012), 114(C1):C00A12

McPhee M G, Proshutinsky A, Morison J H, et al. 2009. Rapid change in freshwater content of the Arctic Ocean. Geophysical Re-search Letters, 36(10):L10602

Nguyen A T, Menemenlis D, Kwok R. 2011. Arctic ice-ocean simulation with optimized model parameters:approach and assess-ment. Journal of Geophysical Research:Oceans (1978-2012), 116(C4):C04025

Nikolopoulos A, Pickart R S, Fratantoni P S, et al. 2009. The western arctic boundary current at 152°W:structure, variability, and transport. Deep Sea Research:Part II. Topical Studies in Ocean-ography, 56(17):1164-1181

Onogi K, Tsutsui J, Koide H, et al. 2007. The JRA-25 reanalysis. Journ-al of the Meteorological Society of Japan, 85(3):369-432

Proshutinsky A, Krishfield R, Timmermans M L, et al. 2009. Beaufort gyre freshwater reservoir:state and variability from observations. Journal of Geophysical Research:Oceans (1978-2012), 114(C1):C00A10

Rudels B, Friedrich H J, Quadfasel D. 1999. The arctic circumpolar boundary current. Deep Sea Research:Part II. Topical Studies in Oceanography, 46(6-7):1023-1062

Rudels B, Friedrich H J. 2000. The Transformations of Atlantic Water in the Arctic Ocean and Their Significance for the Freshwater Budget. The Freshwater Budget of the Arctic Ocean,70:503-532

Shiklomanov I A, Shiklomanov A I, Lammers R B, et al. 2000. The dy-namics of river water inflow to the Arctic Ocean. In:Lewis E L, Jones E P, Lemke P, et al., eds. The Freshwater Budget of the Arctic Ocean. Berlin:Springer, 281-296

Shimada K, McLaughlin F, Carmack E, et al. 2004. Penetration of the 1990s warm temperature anomaly of Atlantic water in the Canada Basin. Geophysical Research Letters, 31(20):L20301

Spall M A. 2013. On the circulation of Atlantic water in the Arctic Ocean. Journal of Physical Oceanography, 43(11):2352-2371

Stewart K D, Haine T W N. 2013. Wind-driven arctic freshwater an-omalies. Geophysical Research Letters, 40(23):6196-6201

Toole J M, Timmermans M L, Perovich D K, et al. Influences of the ocean surface mixed layer and thermohaline stratification on Arctic Sea ice in the central Canada Basin. Journal of Geophysical Research Oceans, 2010, 115(115):234-244.

Washington W M, Semtner Jr A J, Parkinson C, et al. 1976. On the de-velopment of a seasonal change seaice model. Journal of Physical Oceanography, 6(5):679-685

Yang Jiayan. 2009. Seasonal and interannual variability of down-welling in the Beaufort Sea. Journal of Geophysical Research:Oceans (1978-2012), 114(C1):C00A14

Zhang Jinlun, Rothrock D A. 2003. Modeling global sea ice with a thickness and enthalpy distribution model in generalized curvi-linear coordinates. Monthly Weather Review, 131(5):845-861

Zhang Jinlun, Steele M. 2007. Effect of vertical mixing on the Atlantic water layer circulation in the Arctic Ocean. Journal of Geophysical Research:Oceans (1978-2012), 112(C4):C04S04

Relative Articles

Relative Articles

Supplements(0)

Cited By

Cited by

Periodical cited type(4)

1.	Longjiang Mu, Xi Liang, Qinghua Yang, et al. Arctic Ice Ocean Prediction System: evaluating sea-ice forecasts during Xuelong's first trans-Arctic Passage in summer 2017. Journal of Glaciology, 2019, 65(253): 813. doi:10.1017/jog.2019.55
2.	Chao Min, Longjiang Mu, Qinghua Yang, et al. Sea ice export through the Fram Strait derived from a combined model and satellite data set. The Cryosphere, 2019, 13(12): 3209. doi:10.5194/tc-13-3209-2019
3.	Longjiang Mu, Qinghua Yang, Martin Losch, et al. Improving sea ice thickness estimates by assimilating CryoSat ‐2 and SMOS sea ice thickness data simultaneously. Quarterly Journal of the Royal Meteorological Society, 2018, 144(711): 529. doi:10.1002/qj.3225
4.	Longjiang Mu, Martin Losch, Qinghua Yang, et al. Arctic-Wide Sea Ice Thickness Estimates From Combining Satellite Remote Sensing Data and a Dynamic Ice-Ocean Model with Data Assimilation During the CryoSat-2 Period. Journal of Geophysical Research: Oceans, 2018, 123(11): 7763. doi:10.1029/2018JC014316