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ICESat observations of seasonal and interannual variations of sea-ice freeboard and estimated thickness in the Weddell Sea, Antarctica (2003–2009)

  • Donghui Yi (a1), H. Jay Zwally (a2) and John W. Robbins (a1)
Abstract
Abstract

Sea-ice freeboard heights for 17 ICESat campaign periods from 2003 to 2009 are derived from ICESat data. Freeboard is combined with snow depth from Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) data and nominal densities of snow, water and sea ice, to estimate sea-ice thickness. Sea-ice freeboard and thickness distributions show clear seasonal variations that reflect the yearly cycle of growth and decay of the Weddell Sea (Antarctica) pack ice. During October–November, sea ice grows to its seasonal maximum both in area and thickness; the mean freeboards are 0.33–0.41m and the mean thicknesses are 2.10–2.59 m. During February–March, thinner sea ice melts away and the sea-ice pack is mainly distributed in the west Weddell Sea; the mean freeboards are 0.35–0.46m and the mean thicknesses are 1.48–1.94 m. During May–June, the mean freeboards and thicknesses are 0.26–0.29m and 1.32–1.37 m, respectively. the 6 year trends in sea-ice extent and volume are (0.023±0.051)×106 km2 a–1 (0.45% a–1) and (0.007±0.092)×103 km3 a–1 (0.08% a–1); however, the large standard deviations indicate that these positive trends are not statistically significant.

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      ICESat observations of seasonal and interannual variations of sea-ice freeboard and estimated thickness in the Weddell Sea, Antarctica (2003–2009)
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      ICESat observations of seasonal and interannual variations of sea-ice freeboard and estimated thickness in the Weddell Sea, Antarctica (2003–2009)
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References
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Ackley S.F. 1979. Mass-balance aspects of Weddell Sea pack ice. J. Glaciol., 24(90), 391405.
Comiso J.C. and Nishio F.. 2008. Trends in the sea ice cover using enhanced and compatible AMSR-E, SSM/I, and SMMR data. J. Geophys. Res., 113(C2), C02S07. (10.1029/2007JC004257.)
Comiso J.C., Cavalieri D.J. and Markus T.. 2003. Sea ice concentration, ice temperature, and snow depth using AMSR-E data. IEEE Trans. Geosci. Remote Sens., 41(2), 243252.
Drinkwater M.R., Liu X. and Harms S.. 2001. Combined satellite-and ULS-derived sea-ice flux in the Weddell Sea, Antarctica. Ann. Glaciol., 33, 125132.
Farrell S.L., Laxon S.W., McAdoo D.C., Yi D. and Zwally H.J.. 2009. Five years of Arctic sea ice freeboard measurements from the Ice, Cloud and land Elevation Satellite. J. Geophys. Res., 114(C4), C04008. (10.1029/2008JC005074.)
Forsberg R. and Skourup H.. 2005. Arctic Ocean gravity, geoid and sea-ice freeboard heights from ICESat and GRACE. Geophys. Res. Lett., 32(21), L21502. (10.1029/2005GL023711.)
Giles K.A., Laxon S.W. and Worby A.P.. 2008. Antarctic sea ice elevation from satellite radar altimetry. Geophys. Res. Lett., 35(3), L03503. (10.1029/2007GL031572.)
Gloersen P., Campbell W.J., Cavalieri D.J., Comiso J.C., Parkinson C.L. and Zwally H.J.. 1992. Arctic and Antarctic sea ice, 1978–1987: satellite passive-microwave observations and analysis. Washington, DC, National Aeronautics and Space Administration. (NASA SP-511.)
Harms S., Fahrbach E. and Strass V.H.. 2001. Sea ice transports in the Weddell Sea. J. Geophys. Res., 106(C5), 90579073.
Kwok R. and Cunningham G.F.. 2008. ICESat over Arctic sea ice: estimation of snow depth and ice thickness. J. Geophys. Res., 113(C8), C08010. (10.1029/2008JC004753.)
Kwok R., Zwally H.J. and Yi D.. 2004. ICESat observations of Arctic sea ice: a first look. Geophys. Res. Lett., 31(16), L16401. (10.1029/2004GL020309.)
Kwok R., Cunningham G.F., Zwally H.J. andD. Yi. 2006. ICESat over Arctic sea ice: interpretation of altimetric and reflectivity profiles. J. Geophys. Res., 111(C6), C06006. (10.1029/2005JC003175.)
Kwok R., Cunningham G.F., Zwally H.J. and Yi D.. 2007. Ice, Cloud, and land Elevation Satellite (ICESat) over Arctic sea ice: retrieval of freeboard. J. Geophys. Res., 112(C12), C12013. (10.1029/2006JC003978.)
Kwok R., Cunningham G.F., Wensnahan M., Rigor I., Zwally H.J. and Yi D.. 2009. Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008. J. Geophys. Res., 114(C7), C07005. (10.1029/2009JC005312.)
Lange M.A. and Eicken H.. 1991. The sea ice thickness distribution in the northwestern Weddell Sea. J. Geophys. Res., 96(C3), 48214837.
Lange M.A., Schlosser P., Ackley S.F., Wadhams P. and Dieckmann G.S.. 1990. 18O concentrations in sea ice of the Weddell Sea, Antarctica. J. Glaciol., 36(124), 315323.
Laxon S., Peacock N. and Smith D.. 2003. High interannual variability in sea ice thickness in the Arctic region. Nature, 425(6961), 947950.
Leuschen C.J. and 6 others. 2008. Combination of laser and radar altimeter height measurements to estimate snow depth during the 2004 Antarctic AMSR-E Sea Ice field campaign. J. Geophys. Res., 113(C4), C04S90. (10.1029/2007JC004285.)
Lieser J.L., Massom R.A., Worby A.P. and Yi D.. In press. Antarctic sea ice freeboard from airborne laser altimetry and comparison with ICESat. Deep-Sea Res. II.
Lytle V.I. and Ackley S.F.. 1996. Heat flux through sea ice in the western Weddell Sea: convective and conductive transfer processes. J. Geophys. Res., 101(C4), 88538868.
Markus T. and Cavalieri D.J.. 1998. Snow depth distribution over sea ice in the Southern Ocean from satellite passive microwave data. In Jeffries M.O., ed. Antarctic sea ice: physical processes, interactions and variability. Washington, DC, American Geophysical Union, 1939. (Antarctic Research Series 74.)
McAdoo D.C., Farrell S.L., Laxon S.W., Zwally H.J., Yi D. and Ridout A.L.. 2008. Arctic Ocean gravity field derived from ICESat and ERS-2 altimetry: tectonic implications. J. Geophys. Res., 113(B5), B05408. (10.1029/2007JB005217.)
Renner A.H.H. and Lytle V.. 2007. Sea-ice thickness in theWeddell Sea, Antarctica: a comparison of model and upward-looking sonar data. Ann. Glaciol., 46, 419427.
Rothrock D.A., Yu Y. and Maykut G.A.. 1999. Thinning of the Arctic sea-ice cover. Geophys. Res. Lett., 26(23), 34693472.
Schutz B.E., Zwally H.J., Shuman C.A., Hancock D. and DiMarzio J.P.. 2005. Overview of the ICESat Mission. Geophys. Res. Lett., 32(21), L21S01. (10.1029/2005GL024009.)
Spreen G., Kern S., Stammer D. and Hansen E.. 2009. Fram Strait sea ice volume export estimated between 2003 and 2008 from satellite data. Geophys. Res. Lett., 36(19), L19502. (10.1029/ 2009GL039591.)
Strass V.H. and Fahrbach E.. 1998. Temporal and regional variation of sea ice draft and coverage in the Weddell Sea obtained from upward looking sonars. In Jeffries M.O., ed. Antarctic sea ice: physical processes, interactions and variability. Washington, DC, American Geophysical Union, 123139. (Antarctic Research Series 74.)
Wadhams P., Lange M.A. and Ackley S.F.. 1987. The ice thickness distribution across the Atlantic sector of the Antarctic Ocean in midwinter. J. Geophys. Res., 92(C13), 14,53514,552.
Worby A.P., Bush G.M. and Allison I.. 2001. Seasonal development of sea-ice thickness distribution in East Antarctica: measurements from upward-looking sonar data. Ann. Glaciol., 33, 177180.
Worby A.P., Markus T., Steel A.D., Lytle V.I. and Massom R.A.. 2008a. Evaluation of AMSR-E snow depth product over East Antarctic sea ice using in situ measurements and aerial photography. J. Geophys. Res., 113(C5), C05S94. (10.1029/ 2007JC004181.)
Worby A.P., Geiger C.A., Paget M.J., M.L. van Woert, Ackley S.F. and DeLiberty T.L.. 2008b. Thickness distribution of Antarctic sea ice. J. Geophys. Res., 113(C5), C05S92. (10.1029/ 2007JC004254.)
Xie H. and 6 others. In press. Sea ice thickness distribution of the Bellingshausen Sea from surface measurement and ICESat altimetry. Deep-Sea Res. II.
Zwally H.J. and 15 others. 2002a. ICESat’s laser measurements of polar ice, atmosphere, ocean and land. J. Geodyn., 34(3–4), 405445.
Zwally H.J., Comiso J.C., Parkinson C.L., Cavalieri D.J. and Gloersen P.. 2002b. Variability of Antarctic sea ice 1979–1998. J. Geophys. Res., 107(C5), 3041. (10.1029/2000JC000733.)
Zwally H.J., Yi D., Kwok R. and Zhao Y.. 2008. ICESat measurements of sea ice freeboard and estimates of sea ice thickness in the Weddell Sea. J. Geophys. Res., 113(C2), C02S15. (10.1029/2007JC004284.)
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