Sensitivity of RegCM3 Simulated Precipitation over Southern Brazil with Different Boundary Conditions: ENSO Case | Zendy

Simone Erotildes Teleginski Ferraz | Zendy; Diego Rosa Pedroso | Zendy

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Sensitivity of RegCM3 Simulated Precipitation over Southern Brazil with Different Boundary Conditions: ENSO Case

Author(s) -

Simone Erotildes Teleginski Ferraz,

Diego Rosa Pedroso

Publication year - 2013

Publication title -

advances in meteorology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.482

H-Index - 32

eISSN - 1687-9317

pISSN - 1687-9309

DOI - 10.1155/2013/894715

Subject(s) - climatology , precipitation , el niño southern oscillation , climate model , standard deviation , geography , sensitivity (control systems) , boundary (topology) , environmental science , meteorology , mathematics , climate change , statistics , geology , mathematical analysis , oceanography , electronic engineering , engineering

This paper investigates the capability of a regional climate model (RegCM3) to simulate the Southern Brazil rainfall during three periods: the El Niño (1982), the neutral intermediary phase (1985), and the La Niña (1988). Each integration has used three of different boundary conditions available: NCEP-NCAR Reanalysis (I and II) and ECMWF Reanalysis—ERA-40. The simulations were performed covering a South America domain and some descriptive statistics analyses have been applied, like arithmetic mean, median, standard deviation and Pearson’s correlation; and frequencies histogram over Southern Brazil. The main results show that the model satisfactorily reproduces the rainfall in this region during the El Niño, neutral, and La Niña events, indicating that the boundary conditions which were tested adequately describe this simulations type

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