Ensemble forecasting
A)is rarely used.
B)uses several runs for the same forecast period.
C)cancels out the chaos effect.
D)allows accurate forecasting for at least two weeks.

Question

Quizplus · Accepted Answer

Ensemble forecasting uses several runs for the same forecast period. This approach generates a range of possible outcomes and their probabilities. It helps to account for the uncertainties and errors in the initial conditions and the forecast models. However, it does not cancel out the chaos effect entirely, and the accuracy of the forecast still depends on various factors such as data quality, model performance, and meteorological conditions. The forecast horizon for ensemble forecasting can vary depending on the application, but it typically ranges from a few days to several weeks, depending on the lead time and the atmospheric complexity. Therefore, option D is incorrect as it overgeneralizes the forecasting accuracy of ensemble techniques.

Ensemble Forecasting