Climatologías de lluvias de barro en la España peninsular e islas Baleares

Abstract

Mud rain, a phenomenon driven by raindrops transporting mineral aerosols from the atmosphere, is gaining prominence with increasing impacts across diverse sectors. This study focuses on establishing a climatology for this variable over the Iberian Peninsula and the Balearic Islands. The approach involves integrating grids of daily observed precipitation with predicted values of aerosol optical depth (AOD) from the EAC4 model. The determination of AOD thresholds influencing the occurrence of perceptible mud rain draws on data recorded from the meteorological observatory of Murcia (2017-2021). Validation efforts include the development of two additional climatologies based on wet deposition predictions and reanalysis from the global models CAMS and MERRA-2 respectively, revealing significant similarities but also some interesting differences.