Articles | Volume 17, issue 9
Research article
06 Sep 2023
Research article |  | 06 Sep 2023

Relevance of warm air intrusions for Arctic satellite sea ice concentration time series

Philip Rostosky and Gunnar Spreen

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Cited articles

Aue, L., Vihma, T., Uotila, P., and Rinke, A.: New Insights Into Cyclone Impacts on Sea Ice in the Atlantic Sector of the Arctic Ocean in Winter, Geophys. Res. Lett., 49, e2022GL100051,, 2022. a, b, c, d, e
Batrak, Y. and Müller, M.: On the warm bias in atmospheric reanalyses induced by the missing snow over Arctic sea-ice., Nat Commun, 10, 4170,, 2019. a, b
Cavalieri, D. J., Parkinson, C. L., Gloersen, P., and Zwally, H. J.: Arctic and Antarctic Sea Ice Concentrations from Multichannel Passive-Microwave Satellite Data Sets: October 1978–September 1995 User's Guide, Tech. Rep. NASA-TM-104647, NASA Goddard Space Flight Center, (last access: 20 March 2023), 1997. a, b, c, d
Clancy, R., Bitz, C. M., Blanchard-Wrigglesworth, E., McGraw, M. C., and Cavallo, S. M.: A cyclone-centered perspective on the drivers of asymmetric patterns in the atmosphere and sea ice during Arctic cyclones, J. Climate, 35, 1–47,, 2021. a, b, c
Comiso, J. C.: Characteristics of Arctic winter sea ice from satellite multispectral microwave observations, J. Geophys. Res.-Oceans, 91, 975–994,, 1986. a, b, c
Short summary
During winter, storms entering the Arctic region can bring warm air into the cold environment. Strong increases in air temperature modify the characteristics of the Arctic snow and ice cover. The Arctic sea ice cover can be monitored by satellites observing the natural emission of the Earth's surface. In this study, we show that during warm air intrusions the change in the snow characteristics influences the satellite-derived sea ice cover, leading to a false reduction of the estimated ice area.