EGU2020-2997
https://doi.org/10.5194/egusphere-egu2020-2997
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Effect from polynyas in the Laptev and the Beaufort seas to atmospheric transport of heat and moisture

Uliana Prokhorova1,2,3, Alexandra Urazgildeeva1,4, and Genrich Alexeev1
Uliana Prokhorova et al.
  • 1Arctic and Antarctic Research Institute, 38 Bering str., St. Petersburg, 199397, Russia (uliana@niersc.spb.ru)
  • 2Nansen International Environmental and Remote Sensing Centre, 14th Line 7, Office 49, Vasilievsky Island, St. Petersburg, 199034, Russia
  • 3A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Pyzhevskii per. 3, Moscow, 119017, Russia
  • 4Saint Petersburg State University, 13B Universitetskaya Emb., St Petersburg 199034, Russia

Coastal and fast ice polynyas in the Arctic seas can have a noticeable effect on the Arctic climate, increasing the temperature of the cold air which coming from continental Siberia in winter to these seas and in the Arctic basin [1-2]. In this paper, were studied the effect of polynyas on surface air temperature and on the meridional heat and moisture transfers by the ERA-Interim reanalysis data. From reanalysis, meridional heat transfers were obtained through 70 ° N and 74 ° N, air temperature profiles, wind speed in the region of the Laptev (100 - 140 ° E.) and Beaufort (120 - 160 ° W.) Seas, and polynyas which located in the Laptev Sea (120 - 130 ° E) and Beaufort (160 - 140 ° W.). It was confirmed that winter transfers of cold air from the mainland do not have a cooling effect on the average winter air temperature north of 74 ° N due to the heating effect of polynyas.

How to cite: Prokhorova, U., Urazgildeeva, A., and Alexeev, G.: Effect from polynyas in the Laptev and the Beaufort seas to atmospheric transport of heat and moisture, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-2997, https://doi.org/10.5194/egusphere-egu2020-2997, 2020