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ensembleBMA (version 2.0)

slp: Sea-Level Pressure Ensemble Forecasts and Observations

Description

This data set gives 48-hour sea-level pressure forecasts for the US Pacific Northwest from a 5 member ensemble at the University of Washington (UW MM5) and the associated observations for five different stations for the period from April 16, 2000 to June 30, 2000 at 0 hours GMT, using a 12-km grid resolution. Note that forecasts are not available for some of the interim dates.

Arguments

format

A data frame with 205 rows and 11 columns: AVN - forecasts from the AVN member of the ensemble (numeric). GEN - forecasts from the GEM member of the ensemble (numeric). ETA - forecasts from the ETA member of the ensemble (numeric). NGM - forecasts from the NGM member of the ensemble (numeric). NOGAPS - forecasts from the NOGAPS member of the ensemble (numeric). observation - the observed sea-level pressure (numeric). date - the date of each forecast/observation set, in the format YYYYMMDDHH (categorical). latitude - the latitude of each forecast/observation (numeric). longitude - the longitude of each forecast/observation (numeric). station - weather station identifier (categorical). type - weather station type (categorical).

Details

This dataset is a small subset of the data used in Raftery et al. (2005), provided for the purposes of testing. Typically forecasting would be performed on much larger datasets.

References

A. E. Raftery, T. Gneiting, F. Balabdaoui and M. Polakowski, Using Bayesian Model Averaging to Calibrate Forecast Ensembles, Monthly Weather Review 133:1155-1174, 2005. E. P. Grimit and C. F. Mass, Initial results of a mesoscle short-range ensemble forecasting system over the Pacific Northwest, Weather and Forecasting 17:192--205, 2002.