EOL Seminar: Arctic Cyclones and the Influence on Short-Term Sea Ice Change and Moisture Transport

Date: 
Tuesday, April 20, 2021 - 15:30 to 16:30
Location: 
Virtual (Webcast link provided below)
Contact Name: 
Melissa Ward
Contact Email: 
Contact Phone: 
303-497-8713

SPEAKER: Dr. James Doyle - Marine Meteorology Division, U.S. Naval Research Laboratory

DATE: April 20, 2021

Time: 3:30 - 4:30 pm MST

WEBCAST: https://operations.ucar.edu/live-eol

QUESTIONS: Slido will be used to answer your questions during the seminar.

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ABSTRACT

Declining Arctic sea ice thickness and extent over the past several decades has resulted in extensive regions of thin ice vulnerable to melting. We use the ERA-5 reanalysis along with a fully coupled atmosphere-ocean-ice model (Navy ESPC) to explore the role of Arctic cyclones in summertime sea-ice change. Cyclone influence on short-term changes in sea ice vary markedly between early and late summer. Cyclones account for over 70% of the annual poleward moisture transport into the Arctic. We utilize the coupled Navy ESPC to examine the key processes that led to sea ice loss during an intense cyclone.