This data set gives 48-hour forecasts of 24 hour accumulated precipitation on a grid of locations in the US Pacific Northwest initialized on January 13, 2003 OOZ and valid on January 15, 2003 OOZ. The ensemble forecasts come from a nine member version of the University of Washington Mesoscale Ensemble (Grimit and Mass 2002; Eckel and Mass 2005). Precipitation amounts are quantized to hundredths of an inch.
A data frame with 8188 rows and 11 columns:
forecasts from the 9 members of the ensemble (numeric).
latitude the latitude of each forecast (numeric).
longitude the longitude of each forecast (numeric).
E. P. Grimit and C. F. Mass, Initial results of a mesoscale short-range ensemble forecasting system over the Pacific Northwest, Weather and Forecasting 17:192–205, 2002.
F. A. Eckel and C. F. Mass, Effective mesoscale, short-range ensemble forecasting, Weather and Forecasting 20:328–350, 2005.
J. M. Sloughter, A. E. Raftery, T. Gneiting and C. Fraley, Probabilistic quantitative precipitation forecasting using Bayesian model averaging, Monthly Weather Review 135:3209–3220, 2007.
C. Fraley, A. E. Raftery, T. Gneiting and J. M. Sloughter,
R Package for Probabilistic Ensemble Forecasting
using Bayesian Model Averaging,
Technical Report No. 516R, Department of Statistics, University of
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## Not run: # R check data(prcpGrid) prcpGridData <- ensembleData(forecasts = prcpGrid[,1:9], latitude = prcpGrid[,"latitude"], longitude = prcpGrid[,"longitude"], forecastHour = 48, initilaizationTime = "00") data(prcpFit) # median forecast for Jan 15, 2003 at the grid points quantileForecast( prcpFit, prcpGridData, date = "20030115") ## End(Not run)
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