EGU23-9014
https://doi.org/10.5194/egusphere-egu23-9014
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Moisture sources projections under climate change for Atmospheric Rivers landfalling the Iberian Peninsula

José C. Fernández-Alvarez1, Albenis Perez-Alarcon1, Jorge Eiras-Barca2, Alexandre Ramos3, Gleisis Alvarez-Socorro1, Stefan Rahimi4, Raquel Nieto1, and Luis Gimeno1
José C. Fernández-Alvarez et al.
  • 1Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), (jose.carlos.fernandez.alvarez@uvigo.es)
  • 2Defense University Center, The Spanish Naval Academy, Marı́n, Spain
  • 3Karlsruhe Institute of Technology (KIT), Germany
  • 4Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, United States

A combination of Flexpart-WRF simulations forced with ERA5 and the CESM2 model incorporated in the CMIP6 project to infer a series of changes over the present century in the behavior of the landfalling ARs arriving at the Iberian Peninsula was used. Potential changes in the strength and position of their main moisture sources are also studied first in the literature. In general terms, a gradual strengthening in the intensity of these events is expected, observable from an increase in the amount of moisture transported, while no significant changes in the net number of events are observed. A northward shift in the position of the centroids has also been detected. In relation to the moisture sources, an increase in the contribution of these sources to the moisture content is expected, compatible with Clausius-Clapeyron amplification.

How to cite: Fernández-Alvarez, J. C., Perez-Alarcon, A., Eiras-Barca, J., Ramos, A., Alvarez-Socorro, G., Rahimi, S., Nieto, R., and Gimeno, L.: Moisture sources projections under climate change for Atmospheric Rivers landfalling the Iberian Peninsula, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-9014, https://doi.org/10.5194/egusphere-egu23-9014, 2023.