26 04 im alumniV8
22 11 im fatiado face
22 11 im fatiado twitter
22 11 im fatiado youtube
22 11 im fatiado gmail
22 11 im fatiado brazil
22 11 im fatiado england
22 11 im fatiado spain

22 07 im noti Space time calibration of wind speed forecasts fromTítulo: Space-time calibration of wind speed forecasts from regional climate models

Palestrante: Luiz Eduardo da Silva Gomes
Data: 28/07/2021
Horário: 15:30h
Local: Transmissão online

Clique AQUI para acessar a transmissão.

Resumo: Numerical weather predictions (NWPs) are systematically subject to errors due to the deterministic solutions used by numerical models to simulate the atmosphere. Statistical postprocessing techniques are widely used nowadays for NWP calibration. However, time-varying bias is usually not accommodated by such models. The calibration performance is also sensitive to the temporal window used for training. This paper proposes space-time models that extend the main statistical postprocessing approaches to calibrate NWP model outputs. Trans-Gaussian random fields are considered to account for meteorological variables with asymmetric behavior. Data augmentation is used to account for censoring of the response variable. The benefits of the proposed extensions are illustrated through the calibration of hourly 10-meter height wind speed forecasts in Southeastern Brazil coming from the Eta model.

A palestra ocorrerá remotamente, via plataforma Zoom e com transmissão ao vivo pelo canal do YouTube Ciclo de Palestras Estatística UFRJ

A sala será aberta sempre 10 minutos antes do início de cada sessão. Mais informações AQUI.