RT Journal Article
T1 Influence of large-scale circulation and local feedbacks on extreme summer heat in Argentina in 2022/23
A1 Collazo, Soledad
A1 Suli, Solange
A1 Zaninelli, Pablo G.
A1 García Herrera, Ricardo Francisco
A1 Barriopedro Cepero, David
A1 Garrido Pérez, José Manuel
AB The summer of 2022/23 in Argentina set a record with ten heatwaves. Here, we compare the synopticand thermodynamic conditions of the four heatwaves with the largest spatial extent using ERA5reanalysis data. All heatwaves were associated with mid-level anticyclonic anomalies but withdifferent characteristics: three were quasi-stationary high-pressure systems, while one was transient.We also find that enhanced surface fluxes strongly influenced the daily temperature evolution.Furthermore, we perform an attribution exercise using the analogue technique to measure thecontributions of atmospheric circulation, soil moisture, and climate change. For quasi-stationaryevents, the main contribution came from the circulation (up to 2 °C relative to random flow in thepresent climate). Conversely, the transient heatwave showed a stronger association with extreme soilmoisture deficits, with an estimated increase of ~+1 °C relative to wetter conditions. Climate changehas also increased the intensity of heatwaves by +0.5 to +1.2 °C relative to previous decades.
PB Springer Nature
YR 2024
FD 2024-05-03
LK https://hdl.handle.net/20.500.14352/104781
UL https://hdl.handle.net/20.500.14352/104781
LA eng
NO Collazo, S., Suli, S., Zaninelli, P. G., García-Herrera, R., Barriopedro, D., & Garrido-Perez, J. M. (2024). Influence of large-scale circulation and local feedbacks on extreme summer heat in Argentina in 2022/23. Communications Earth & Environment, 5(1), 231.
NO European Commision
NO Comunidad de Madrid
DS Docta Complutense
RD 8 abr 2025