This data set gives 48-hour forecast and simulated observed Sea Level Pressure (measured in millibars, mb) for 59 stations located in the Pacific Northwest. The 48-hour forecasts of Sea Level Pressure were provided by the Aviation (AVN) member of the University of Washington MM5 Mesoscale Ensemble. The observed Sea Level Pressure values were simulated for each day using a Multivariate Normal distribution with exponential covariance structure. The parameters used for the exponential covariance structure were: nugget effect, equal to 0.1 mb^2, σ^2 equal to 0.5 mb^2 and range equal to 50 km.
A matrix with 150 rows and 6 columns. The columns are:
date.obs a numeric vector giving the date of observations in the YYYYMMDDHH format.
id.stat a character string giving the identifier of the metereological stations.
lon.stat a numeric vector giving the longitudes of the metereological stations.
lat.stat a numeric vector giving the latitudes of the metereological stations.
forecast a numeric vector giving the 48-hr Sea Level Pressure forecasts as provided by the Aviation (AVN) member of the University of Washington MM5 ensemble.
obs a numeric vector giving the simulated Sea Level Pressures.
Gel, Y., Raftery, A. E., Gneiting, T. (2004). Calibrated mesoscale weather field forecasting: The Geostatistical Output Perturbation (GOP) method (with discussion). Journal of the American Statistical Association, Vol. 99 (467), 575–583.
Grimit, E. P., Mass, C. F. (2002). Initial results of a mesoscale short-range ensemble forecasting system over the Pacific Northwest. Weather and Forecasting 17, 192–205.
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