Articles | Volume 10, issue 6
Research article
09 Dec 2016
Research article |  | 09 Dec 2016

Quantification of ice production in Laptev Sea polynyas and its sensitivity to thin-ice parameterizations in a regional climate model

Oliver Gutjahr, Günther Heinemann, Andreas Preußer, Sascha Willmes, and Clemens Drüe

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Cited articles

Aagard, K., Coachman, L., and Carmack, E.: On the halocline of the Arctic Ocean, Deep-Sea Res., 28, 529–545,, 1981.
Adams, S., Willmes, S., Heinemann, G., Rozman, P., Timmermann, R., and Schröder, D.: Evaluation of simulated sea-ice concentrations from sea-ice/ocean models using satellite data and polynya classification methods, Polar Res., 30, 7124,, 2011.
Adams, S., Willmes, S., Schroeder, D., Heinemann, G., Bauer, M., and Krumpen, T.: Improvement and sensitivity analysis of thermal thin-ice retrievals, IEEE T. Geosci. Remote, 51, 3306–3318, 2013.
Aksenov, Y., Ivanov, V. V., Nurser, A. J. G., Bacon, S., Polyakov, I. V., Coward, A. C., Garabato, A. C. N., and Moeller, A. B.: The Arctic circumpolar boundary current, J. Geophys. Res., 116, C09017,, 2011.
Backhaus, J. A., Fohrmann, H., Kaempf, J., and Rubina, A.: Formation and export of water masses produced in Arctic shelf polynyas – Process studies of oceanic convection, J. Mar. Sci., 54, 366–382, 1997.
Short summary
We estimated the formation of new sea ice within polynyas in the Laptev Sea (Siberia) with the regional climate model COSMO-CLM at 5 km horizontal resolution. Fractional sea ice and the representation of thin ice is often neglected in atmospheric models. Our study demonstrates, however, that the way thin ice in polynyas is represented in the model considerably affects the amount of newly formed sea-ice and the air–ice–ocean heat flux. Both processes impact the Arctic sea-ice budget.