Semantic Scholar Open Access 2017 182 sitasi

Extreme cyclone events in the Arctic: Wintertime variability and trends

A. Rinke M. Maturilli Robert M. Graham H. Matthes D. Handorf +3 lainnya

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Abstrak

Typically 20–40 extreme cyclone events (sometimes called ‘weather bombs’) occur in the Arctic North Atlantic per winter season, with an increasing trend of 6 events/decade over 1979–2015, according to 6 hourly station data from Ny-Ålesund. This increased frequency of extreme cyclones is consistent with observed significant winter warming, indicating that the meridional heat and moisture transport they bring is a factor in rising temperatures in the region. The winter trend in extreme cyclones is dominated by a positive monthly trend of about 3–4 events/decade in November–December, due mainly to an increasing persistence of extreme cyclone events. A negative trend in January opposes this, while there is no significant trend in February. We relate the regional patterns of the trend in extreme cyclones to anomalously low sea-ice conditions in recent years, together with associated large-scale atmospheric circulation changes such as ‘blockinglike’ circulation patterns (e.g. Scandinavian blocking in December and Ural blocking during January–February).

Topik & Kata Kunci

Physics Environmental Science

Penulis (8)

A. Rinke

M. Maturilli

Robert M. Graham

H. Matthes

D. Handorf

L. Cohen

S. Hudson

J. Moore

Format Sitasi

APA MLA BibTeX

Rinke, A., Maturilli, M., Graham, R.M., Matthes, H., Handorf, D., Cohen, L. et al. (2017). Extreme cyclone events in the Arctic: Wintertime variability and trends. https://doi.org/10.1088/1748-9326/aa7def

Akses Cepat

Lihat di Sumber doi.org/10.1088/1748-9326/aa7def

Informasi Jurnal

Tahun Terbit: 2017
Bahasa: en
Total Sitasi: 182×
Sumber Database: Semantic Scholar
DOI: 10.1088/1748-9326/aa7def
Akses: Open Access ✓