Jon Ander Arrillaga

NP Nonlinear Processes in Geosciences

The 2015 Outstanding Student Poster (OSP) Award is awarded to Jon Ander Arrillaga for the poster/PICO entitled:

An observational and numerical study of the sea breeze in the eastern Cantabrian coast (Spain) (Arrillaga, J. A.; Yagüe, C; Sastre, M.; Román-Cascón, C.)

Click here to download the poster/PICO file.

I am a PhD student in the Department of Geophysics and Meteorology (Faculty of Physics) at the Complutense University of Madrid, under the supervision of Prof. Carlos Yagüe. My PhD research aims to make a study of mesoscale phenomena developed under stable synoptic conditions and its influence on smallerscale phenomena specially related to atmospheric turbulence and the mixing and diffusion of physical properties in the lower atmosphere. Besides the observational analysis, numerical simulations are performed with the Weather Research and Forecasting (WRF) model, helping us delve into the investigation of turbulent processes that happen in the Planetary Boundary Layer (PBL). The EGU 2015 poster presents the results obtained for my MSc thesis plus additional complementary experiments, in which sea breezes were studied in the Basque coast (North of Spain) during summer 2013. Four sensitivity experiments were performed varying the PBL scheme and the grid analysis nudging option, allowing us to study the turbulence and updrafts generated with the arrival of the seabreeze front.

Publication resulting from the award

Arrillaga, J. A., Yagüe, C., Román-Cascón, C., Sastre, M., Jiménez, M. A., Maqueda, G., and Vilà-Guerau de Arellano, J.: From weak to intense downslope winds: origin, interaction with boundary-layer turbulence and impact on CO2 variability, Atmos. Chem. Phys., 19, 4615–4635, https://doi.org/10.5194/acp-19-4615-2019, 2019.