Naslov
RECENT WEAKENING IN THE WINTER ENSO TELECONNECTION OVER THE NORTH ATLANTIC-EUROPEAN REGION

Autori
Ivasić, Sara ; Herceg-Bulić, Ivana ; King, Martin P.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Knjiga sažetaka / Barišić, Dajana - Zagreb, 2021, 279-280

ISBN
978-953-6076-90-1

Skup
5. Simpozij studenata doktorskih studija PMF-a = 5th Faculty of Science PhD Student Symposium

Mjesto i datum
Zagreb, Hrvatska, 24.04.2021. - 25.04.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
ENSO teleconnections ; modulation of teleconnections ; North Atlantic-European climate ; NAO

Sažetak
New observational evidence for variability of the atmospheric response to wintertime El Niño-Southern Oscillation (ENSO) is found. Using different approaches and datasets, a weakening in the recent ENSO teleconnection over the North Atlantic-European (NAE) region is demonstrated. Changes in both pattern and strength of the teleconnection indicate a turning point in the 1970s, with a shift from a response resembling the North Atlantic Oscillation (NAO) to an anomaly pattern with very weak or statistically non-significant values ; and to nearly non-existent teleconnection in the most recent decades. Results show the importance of the background sea surface temperature (SST) state and sea-ice climatology having opposite effects in modulating the ENSO-NAE teleconnection. As indicated with targeted simulations, the recent change in the SST climatology in the Atlantic and Arctic has contributed to the weakening of the ENSO effect. The findings of this study can have implications on our understanding of the modulation of ENSO teleconnections and ENSO as a source of predictability in the NAE sector.

Izvorni jezik
Engleski

Znanstvena područja
Geofizika

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