Articles | Volume 9, issue 1
The Cryosphere, 9, 269–283, 2015
The Cryosphere, 9, 269–283, 2015

Research article 10 Feb 2015

Research article | 10 Feb 2015

Arctic sea ice thickness loss determined using subsurface, aircraft, and satellite observations

R. Lindsay and A. Schweiger

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Cited articles

Haas, C. and Jochmann, P.: Continuous EM and ULS thickness profiling in support of ice force measurements, in: Proceedings of the 17th International Conference on Port and Ocean Engineering under Arctic conditions (POAC'03), 16–19 June 2003, Trondheim, Norway, edited by: Loeset, S., Bonnemaire, B., and Bjerkas, M., Norwegian University of Science and Technology, Trondheim, 849–856, 2003.
Haas, C., Lobach, J., Hendricks, S., Rabenstein, L., and Pfaffling, A.: Helicopter-borne measurements of sea ice thickness, using a small and lightweight, digital EM system, J. Appl. Geophys., 67, 234–241, 2009.
Haas, C., Hendricks, S., Eicken, H., and Herber, A.: Synoptic airborne thickness surveys reveal state of Arctic sea ice cover, Geophys. Res. Lett., 37, L09501,, 2010.
Hansen, E., Gerland, S., Granskog, M. A., Pavlova, O., Renner, A. H. H., Haapala, J., Lyning, T. B., and Tschudi, M.: Thinning of Arctic sea ice observed in Fram Strait: 1990–2011, J. Geophys. Res.-Oceans, 118, 5202–5221,, 2013.
Krishfield, R. A. and Proshutinsky, A.: BGOS ULS Data Processing Procedure. Woods Hole Oceanographic Institute report, available at: (last access: 26 April 2013), 2006.
Short summary
The sea ice thickness of the Arctic Basin is estimated from sources that include upward-looking sonars, electromagnetic sensors, and lidar or radar altimeters. Good agreement is found between five of the systems while larger systematic differences are found for others. The trend in annual mean ice thickness, 2000--2013, is –0.58–/+0.07m decade–1; for the central Arctic Basin alone the annual mean ice thickness has decreased from 3.45m in 1975 to 1.11m in 2013, a 68% reduction.