Warm and moist air intrusions into the winter Arctic: a Lagrangian view on the near-surface energy budgets

You, Cheng; Tjernström, Michael; Devasthale, Abhay

doi:https://doi.org/10.5194/acp-22-8037-2022

Articles | Volume 22, issue 12

https://doi.org/10.5194/acp-22-8037-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-8037-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 12

Research article

|

21 Jun 2022

Research article |

| 21 Jun 2022

Warm and moist air intrusions into the winter Arctic: a Lagrangian view on the near-surface energy budgets

Cheng You, Michael Tjernström, and Abhay Devasthale

Supplement

https://doi.org/10.5194/acp-22-8037-2022-supplement

Data sets

The ERA5 global reanalysis (https://www.ecmwf.int/en/forecasts/datasets/ reanalysis-datasets/era5) Hans Hersbach, Bill Bell, Paul Berrisford, Shoji Hirahara, András Horányi, Joaquín Muñoz-Sabater, Julien Nicolas, Carole Peubey, Raluca Radu, Dinand Schepers, Adrian Simmons, Cornel Soci, Saleh Abdalla, Xavier Abellan, Gianpaolo Balsamo, Peter Bechtold, Gionata Biavati, Jean Bidlot, Massimo Bonavita, Giovanna De Chiara, Per Dahlgren, Dick Dee, Michail Diamantakis, Rossana Dragani, Johannes Flemming, Richard Forbes, Manuel Fuentes, Alan Geer, Leo Haimberger, Sean Healy, Robin J. Hogan, Elías Hólm, Marta Janisková, Sarah Keeley, Patrick Laloyaux, Philippe Lopez, Cristina Lupu, Gabor Radnoti, Patricia de Rosnay, Iryna Rozum, Freja Vamborg, Sebastien Villaume, and Jean Noël Thépaut https://doi.org/10.1002/qj.3803

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Short summary

In winter when solar radiation is absent in the Arctic, the poleward transport of heat and moisture into the high Arctic becomes the main contribution of Arctic warming. Over completely frozen ocean sectors, total surface energy budget is dominated by net long-wave heat, while over the Barents Sea, with an open ocean to the south, total net surface energy budget is dominated by the surface turbulent heat.