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Session S20 - Applied Math and Computational Methods and Analysis across the Americas

Monday, July 19, 16:00 ~ 16:30 UTC-3

Forecast of some atmospheric variables using a monotonic convective scheme in the region of La Libertad-Perú

Obidio Rubio

Universidad Nacional de Trujillo, Perú   -   This email address is being protected from spambots. You need JavaScript enabled to view it.

We simulate the forecast of some atmospheric variables for the region of La Libertad-Peru, using the Brazilian Regional Atmospheric Modeling System BRAMS, taking into account that the topography of the region is varied, since its height above sea level varies from 3 msm to 4800 msnm, observes certain inestabilities in the simulation mainly when using a high resolution mesh, as in the case of 5km, due to this situation we try to improve stability by introducing a monotonic convective scheme of Walce, which has already been implemented in some variables such as the tracer scalars, by Freitas 2012(J. Adv. Model. Earth Syst., Vol. 3, M01001, 26 pp.) in some Brazilian tropical zones, obtaining better patterns and without generating spurious oscillations. Taking into account that they have not been tested in the case when the topography is varied as in the Peruvian case or in non-linear terms, in this case we use the method in the simulations of variables such as precipitation and aerosols, for this we use data from January and February 2021, as well as verifying that the scheme is high order and stable scheme.

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