Changes in moisture sources of atmospheric rivers landfalling the Iberian Peninsula with WRF-FLEXPART
UNIVERSAL IDENTIFIER: http://hdl.handle.net/11093/4774
EDITED VERSION: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JD037612
UNESCO SUBJECT: 25 Ciencias de la Tierra y del Espacio ; 2501.10 Estructura Atmosférica ; 2502 Climatología
DOCUMENT TYPE: article
This paper makes use of 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 atmospheric rivers (ARs) arriving to the Iberian Peninsula. In addition, future changes in the intensity and position of their main moisture sources are studied. In overall terms, there is a noticeable increase in the amount of moisture transported by ARs in the study region, particularly accentuated by the end of the century. However, no significant changes in the number of events are observed. A northward shift of both the mean position of the ARs as well as their main sources of moisture is also detected, particularly for the end of the century, and in the summer and fall months. In relation to the latter, an increase in the contribution of moisture contribution is also observed, quantitatively compatible with Clausius-Clapeyron amplification.
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