RT Journal Article
T1 Stratospheric connection to the abrupt end of the 2016/2017 iberian drought
A1 Ayargüena Porras, Blanca
A1 Barriopedro Cepero, David
A1 Garrido Pérez, José Manuel
A1 Ábalos Álvarez, Marta
A1 De La Cámara Illescas, Álvaro
A1 García Herrera, Ricardo Francisco
A1 Calvo, N.
A1 Ordóñez García, Carlos
A1 Ayarzagüena Porras, Blanca
AB Southwestern Europe experienced extraordinary rainy and windy conditions in March 2018, leading to the end of the most severe drought since 1970 at continental scale. This anomalous weather was linked to a persistent negative North Atlantic Oscillation pattern. Two weeks earlier a sudden stratospheric warming (SSW) took place, preceded by the strongest planetary wave activity on record. In this study, we explore the connection between the SSW and the weather shift by employing a weather regime approach and flow analogues. The timing of the downward propagation of the stratospheric anomalies, the transition to and persistence of the negative North Atlantic Oscillation weather regime, and the sudden precipitation increase are all consistent with the typical tropospheric state after SSWs. Our results evidence a significant role of the 2018 SSW in the record-breaking precipitation event.
PB American Geophysical Union
SN 0094-8276
YR 2018
FD 2018-11-28
LK https://hdl.handle.net/20.500.14352/13063
UL https://hdl.handle.net/20.500.14352/13063
LA eng
NO Ayarzagüena, B., Barriopedro Cepero, D., Garrido Pérez, J. M. et al. «Stratospheric Connection to the Abrupt End of the 2016/2017 Iberian Drought». Geophysical Research Letters, vol. 45, n.o 22, noviembre de 2018. DOI.org (Crossref), https://doi.org/10.1029/2018GL079802.
NO Unión Europea - FP7
NO Ministerio de Economía, Comercio y Empresa (España)
NO Programme Atracción de Talento de la Comunidad de Madrid
NO Ministerio de Educación, Formación Profesional y Deportes (España)
DS Docta Complutense
RD 1 sept 2024