Amplification of the Temperature Seasonality in the Mediterranean Region Under Anthropogenic Climate Change

Abstract Amplified warming in the Mediterranean region in summer, corresponding to strengthening temperature seasonality (Tseasonality), increases the frequency and intensity of heatwaves and endangers both human health and ecosystems. However, previous studies have not found a detectable signal of...

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Detalles Bibliográficos
Autores: Feng, Xiaofan, Qian, Cheng, Materia, Stefano
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/377572
Acceso en línea:https://hdl.handle.net/2117/377572
https://dx.doi.org/10.1029/2022GL099658
Access Level:acceso abierto
Palabra clave:Climatic changes--Effect of human beings on.
Heatwaves (Meteorology)
Temperature seasonality
Mediterranean region
Anthropogenic Climate Change
Mediterranean summer warming
Simulació per ordinador
Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Canvi climàtic
Descripción
Sumario:Abstract Amplified warming in the Mediterranean region in summer, corresponding to strengthening temperature seasonality (Tseasonality), increases the frequency and intensity of heatwaves and endangers both human health and ecosystems. However, previous studies have not found a detectable signal of anthropogenic forcing in changes in Tseasonality in the Mediterranean and the contribution from human activities is unclear. Here, we show that signals of anthropogenic forcing and greenhouse gas forcing can be detected for the period 1950–2014, the signals of anthropogenic and natural forcing are separable, and the contribution of anthropogenic forcing is 74\% using the optimal fingerprinting approach. Future projections based on attribution constraints indicated that Tseasonality will continue to strengthen by more than 2°C by 2100, which is much worse than predicted by direct model output. These results are important for understanding and projecting the impacts of human activities on Tseasonality and related summer heatwaves in the future.