Author, as appears in the article.: Utrabo-Carazo E; Azorin-Molina C; Serrano E; Aguilar E; Brunet M; Guijarro JA
Department: Geografia
URV's Author/s: Aguilar Anfrons, Enrique Modesto / Brunet India, Manuela Catalina
Keywords: Wind gusts Surface wind speed Stilling Reversal Northern-hemisphere Iberian peninsula Atmospheric circulation wind gusts variability tropical expansion stilling speed trends reversal recovery models iberian peninsula homogenization climate-change china atmospheric circulation
Abstract: This study analyses quality controlled and homogenized near-surface wind speed series (SWS) at 87 meteorological stations distributed across Spain and Portugal for 1961–2019. Multidecadal variability analysis of both mean and gusts SWS confirms for the first time in the region the cessation of the stilling (decline of SWS) and a possible weak reversal phenomenon (increase in SWS) in the last decades, varying its onset from 1999 to 2018, depending on the season and variable. Different atmospheric circulation drivers are evaluated to explain the stilling and reversal phenomena. Among the chosen teleconnection indices, the Western Mediterranean Oscillation index (WeMOi) is the one that presents the highest (positive) correlation with SWS, although the correlation (negative) with the North Atlantic Oscillation index and the Mediterranean Oscillation index in winter is also statistically significant (p < 0.05). Results show that the interannual variability of the WeMOi could exert a strong influence on both the stilling and reversal phenomena, as it displays statistically significant negative trends for 1961–2010 and positive ones (non-significant) for 2010–2019, in agreement with the observed SWS trends. The use of the Jenkinson and Collison weather type classification reveals the marked influence of certain weather types in modulating SWS changes (i.e., west, northwest, and anticyclonic types). We proposed the increase in atmospheric thermal stability and the northward shift of the jet stream as principal causes of the stilling phenomenon in this region. Our results improve our understanding of wind changes, and highlight the importance of regional assessments to discern their socioeconomic and environmental impacts.
Thematic Areas: Química Meteorology & atmospheric sciences Materiais Matemática / probabilidade e estatística Interdisciplinar Geografía Geociências Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Ciências biológicas ii Ciências ambientais Ciências agrárias i Ciência de alimentos Biodiversidade Atmospheric science Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: manola.brunet@urv.cat enric.aguilar@urv.cat
Author identifier: 0000-0002-9386-710X 0000-0002-8384-377X
Record's date: 2024-01-13
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.sciencedirect.com/science/article/pii/S0169809522001399?via%3Dihub
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Atmospheric Research. 272
APA: Utrabo-Carazo E; Azorin-Molina C; Serrano E; Aguilar E; Brunet M; Guijarro JA (2022). Wind stilling ceased in the Iberian Peninsula since the 2000s. Atmospheric Research, 272(), -. DOI: 10.1016/j.atmosres.2022.106153
Article's DOI: 10.1016/j.atmosres.2022.106153
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV