Polar Lows Over the Eastern Part of the Eurasian Arctic: The Sea-Ice Retreat Consequence

International audience With the sea-ice decline over the eastern part of the Eurasian Arctic (EEA), polar mesocyclones (MCs) and their most intensive representatives-polar lows (PLs)-can occur over more open-water areas. Visible and infrared MODIS images, active and passive microwave spaceborne inst...

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Bibliographic Details
Published in:IEEE Geoscience and Remote Sensing Letters
Main Authors: Zabolotskikh, Elizaveta V., Gurvich, Irina A., Chapron, Bertrand
Other Authors: Laboratoire d'Océanographie Physique et Spatiale (LOPS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2016
Subjects:
[SDU]Sciences of the Universe [physics]
Arctic
Laptev Sea
Kara Sea
Chukchi Sea
East Siberian Sea
Chukchi
laptev
Sea ice
Online Access:https://hal.science/hal-04201764
https://hal.science/hal-04201764/document
https://hal.science/hal-04201764/file/48388.pdf
https://doi.org/10.1109/LGRS.2016.2593487
Description
Summary:International audience With the sea-ice decline over the eastern part of the Eurasian Arctic (EEA), polar mesocyclones (MCs) and their most intensive representatives-polar lows (PLs)-can occur over more open-water areas. Visible and infrared MODIS images, active and passive microwave spaceborne instruments, and ERA Interim reanalysis data are combined and used to analyze the synoptic situations and to infer the factors influencingMC appearance and evolution over the Kara Sea, the Laptev Sea, the East Siberian Sea, and the Chukchi Sea. In recent years, the Arctic more often loses its summer sea-ice cover, and PLs may more commonly emerge within open-water Eastern Arctic regions during fall and summer months. This conclusion is derived basing on the analysis of more than 150 MCs for August, September, October, and November months over the EEA for the period of 2003-2015. PL and MC distribution and characteristics necessitate to be studied with a multisensor approach since neither reanalysis data nor data from a single instrument can provide sufficient means for their confident detection and analysis.

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