首页|Amplification of the Temperature Seasonality in the Mediterranean Region Under Anthropogenic Climate Change
Amplification of the Temperature Seasonality in the Mediterranean Region Under Anthropogenic Climate Change
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NSTL
Amer Geophysical Union
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.
temperature seasonalitydetection and attributionobservational constraintsCMIP6 simulationsanthropogenic forcings
Cheng Qian、Xiaofan Feng、Stefano Materia
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Institute of Atmospheric Physics
Fondazione Centro Euro‐Mediterraneo Sui Cambiamenti Climatici
NSTL
Amer Geophysical Union
