Vol.31, No.01. 2020
Table of Contents
ARTICLE | Oceanography/Sea Ice
Features of sea ice motion observed with ice buoys from the central Arctic Ocean to Fram Strait
Correspondence: firstname.lastname@example.org ORCID:
Using six ice-tethered buoys deployed in 2012, we analyzed sea ice motion in the central Arctic Ocean and Fram Strait. The two-hourly buoy-derived ice velocities had a magnitude range of 0.01–0.80 m•s−1, although ice velocities within the Arctic Basin were generally less than 0.4 m•s−1. Complex Fourier transformation showed that the amplitudes of the sea ice velocities had a non-symmetric inertial oscillation. These inertial oscillations were characterized by a strong peak at a frequency of approximately −2 cycle•d−1 on the Fourier velocity spectrum. Wind was a main driving force for ice motion, characterized by a linear relationship between ice velocity and 10-m wind speed. Typically, the ice velocity was about 1.4% of the 10-m wind speed. Our analysis of ice velocity and skin temperature showed that ice velocity increased by nearly 2% with each 10 ℃ increase in skin temperature. This was likely related to weakened ice strength under increasing temperature. The ice-wind turning angle was also correlated with 10-m wind speed and skin temperature. When the wind speed was less than 12 m•s−1 or skin temperature was less than −30 ℃, the ice-wind turning angle decreased with either increasing wind speed or skin temperature. Clearly, sea ice drift in the central Arctic Ocean and Fram Strait is dependent upon seasonal changes in both temperature and wind speed.
1 School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; 2 MNR Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China; 3 Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Comiso J C. 2012. Large decadal decline of the Arctic multiyear ice cover. J Climate, 25(4): 1176-1193, doi:10.1175/JCLI-D-11-00113.1.
Gao Y, Sun J, Li F, et al. 2015. Arctic sea ice and Eurasian climate: A review. Adv Atmos Sci, 32(1): 92-114, doi: 10.1007/s00376-014- 0009-6.
Heil P, Fowler C W, Maslanik J A, et al. 2001. A comparison of East Antarctic sea-ice motion derived using drifting buoys and remote sensing. Ann Glaciol, 33(1): 139-144, doi: 10.3189/1727564017818 18374.
Kanamitsu M, Ebisuzaki W, Woollen J, et al. 2002. NCEP-DOE AMIP-II Reanalysis (R-2). B Am Meteorol Soc, 83(11): 1631-1643, doi: 10.1175/BAMS-83-11-1631.
Kwok R. 2000. Recent changes in Arctic Ocean sea ice motion associated with the North Atlantic Oscillation. Geophys Res Lett, 27(6): 775-778, doi: 10.1029/1999gl002382.
Lee S. 2014. A theory for polar amplification from a general circulation perspective. Asia-Pac J Atmos Sci, 50(1): 31-43, doi: 10.1007/s13143- 014-0024-7.
Lei R, Cheng B, Heil P, et al. 2018. Seasonal and interannual variations of sea ice mass balance from the Central Arctic to the Greenland Sea. J Geophys Res-Oceans, 123(4): 2422-2439, doi: 10.1002/2017JC013548.
Leppäranta M. 2011. The drift of sea ice. Berlin, Heidelberg: Springer Press.
Lindsay R W, Rothrock D A. 1994. Arctic sea ice surface temperature from AVHRR. J Climate, 7(1): 174-183, doi: 10.1175/1520- 0442(1994)007<0174:asistf>2.0.co;2.
Martin T, Augstein E. 2000. Large-scale drift of Arctic sea ice retrieved from passive microwave satellite data. J Geophys Res-Oceans, 105(C4): 8775-8788, doi: 10.1029/1999jc900270.
Maslanik J, Drobot S, Fowler C, et al. 2007. On the Arctic climate paradox and the continuing role of atmospheric circulation in affecting sea ice conditions. Geophys Res Lett, 34(3): L03711, doi: 10.1029/2006GL 028269.
Ogi M, Rigor I G. 2013. Trends in Arctic sea ice and the role of atmospheric circulation. Atmos Sci Lett, 14(2): 97-101, doi:10.1002/ asl2.423.
Olason E, Notz D. 2014. Drivers of variability in Arctic sea-ice drift speed. J Geophys Res-Oceans, 119(9): 5755-5775, doi: 10.1002/2014JC 009897.
Park H S, Stewart A L. 2015. An analytical model for wind-driven Arctic summer sea ice drift. The Cryosphere Discuss, 9(2): 2101-2133, doi: 10.5194/tcd-9-2101-2015.
Perrie W, Hu Y. 1997. Air-ice-ocean momentum exchange. Part II: ice drift. J Phys Oceanogr, 27(9): 1976-1996, doi: 10.1175/1520-0485 (1997)0272.0.CO;2.
Polyakov I V, Timokhov L A, Alexeev V A, et al. 2010. Arctic Ocean warming contributes to reduced polar ice cap. J Phys Oceanogr, 40(12): 2743-2756, doi:10.1175/2010JPO4339.1.
Rampal P, Weiss J, Marsan D. 2009. Positive trend in the mean speed and deformation rate of Arctic sea ice, 1979-2007. J Geophys Res-Oceans, 114(C5): C05013, doi: 10.1029/2008JC005066.
Rigor I G, Wallace J M, Colony R L. 2002. Response of sea ice to the Arctic Oscillation. J Climate, 15(18): 2648-2663, doi: 10.1175/1520- 0442(2002)015<2648:ROSITT>2.0.CO;2.
Schweiger A, Lindsay R, Zhang J, et al. 2011. Uncertainty in modeled Arctic sea ice volume. J Geophys Res-Oceans, 116: C00D06, doi: 10.1029/2011JC007084.
Steele M, Morison J H, Untersteiner N. 1989. The partition of air-ice-ocean momentum exchange as a function of ice concentration, floe size, and draft. J Geophys Res-Oceans, 94(C9): 12739-12750, doi: 10.1029/jc094ic09p12739.
Stoudt C A. 2015. Sea ice near-inertial response to atmospheric storms. University of Alaska Fairbanks, Master Thesis, 12.
Thorndike A S, Colony R. 1982. Sea ice motion in response to geostrophic winds. J Geophys Res-Oceans, 87(C8): 5845, doi: 10.1029/jc087ic 08p05845.
Vihma T. 2014. Effects of Arctic sea ice decline on weather and climate: A review. Surv Geophys, 35(5): 1175-1214, doi: 10.1007/s10712-014- 9284-0.
Vihma T, Launiainen J, Uotila J. 1996. Weddell Sea ice drift: Kinematics and wind forcing. J Geophys Res-Oceans, 101(C8): 18279-18296, doi: 10.1029/96jc01441.
Vihma T, Tisler P, Uotila P. 2012. Atmospheric forcing on the drift of Arctic sea ice in 1989-2009. Geophys Res Lett, 39(2): L02501, doi: 10.1029/2011GL050118.
Weiss J. 2013. Drift, deformation, and fracture of sea ice: A perspective across scales. Berlin, Heidelberg: Springer Press.
Zhang J, Lindsay R, Schweiger A, et al. 2012. Recent changes in the dynamic properties of declining Arctic sea ice: A model study. Geophys Res Lett, 39(20): L20503, doi: 10.1029/2012GL 053545.
Zhang J, Thomas D R, Rothrock D A, et al. 2003. Assimilation of ice motion observations and comparisons with submarine ice thickness data. J Geophys Res-Oceans, 108(C6): 3170, doi: 10.1029/2001JC 001041.
Zhao Y, Liu A K. 2007. Arctic sea-ice motion and its relation to pressure field. J Oceanogr, 63(3): 505-515, doi: 10.1007/s10872-007-0045-2.