Koyama, T;
Stroeve, J;
Cassano, J;
Crawford, A;
(2017)
Sea Ice Loss and Arctic Cyclone Activity from 1979 to 2014.
Journal of Climate
, 30
(12)
pp. 4735-4754.
10.1175/JCLI-D-16-0542.1.
Text
jcli-d-16-0542.1.pdf - Published Version Download (0B) |
Abstract
Extensive summer sea ice loss has occurred within the Beaufort, Chukchi, East Siberian, and Laptev Seas over the last decade. Associated anomalies in sensible and latent heat fluxes in autumn have increased Arctic atmospheric precipitable water and air temperatures, with the potential to impact autumn and winter cyclone activity. To examine if a connection exists between recent Arctic sea ice loss and cyclone activity, several cyclone metrics from 60° to 90°N are analyzed. Results show that following years with less September sea ice, there is a subsequent increase in moisture availability, regional baroclinicity, and changes in vertical stability that favor cyclogenesis. However, tracking of individual cyclones indicates no coherent increase in cyclone frequency or intensity associated with sea ice loss. Furthermore, no robust northward progression of extreme cyclones is observed.
Type: | Article |
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Title: | Sea Ice Loss and Arctic Cyclone Activity from 1979 to 2014 |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1175/JCLI-D-16-0542.1 |
Publisher version: | https://doi.org/10.1175/JCLI-D-16-0542.1 |
Language: | English |
Additional information: | This is the published version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
Keywords: | Arctic; Extratropical cyclones; Stability; Storm environments |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
URI: | https://discovery.ucl.ac.uk/id/eprint/10033881 |
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