Boundary layers 2 Data acquisition 2 Data assimilation 2 Forecasting 2 Kalman filter 2 Kalman filters 2 Mathematical and statistical techniques 2 Meteorology 2 Model evaluation/performance 2 Model initialization Models and modeling 2 Numerical models 2 Numerical weather prediction/forecasting 2 Quality control 2 South America 2 Statistical techniques 2 Weather forecasting 2 data assimilation 2 ensemble forecasting 2 numerical model 2 performance assessment 2 sensitivity analysis 2 weather forecasting 2