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ProbForecastGOP (version 1.3.2)

Probabilistic weather forecast using the GOP method

Description

The ProbForecastGOP package contains a main function, called ProbForecastGOP and other functions, to produce probabilistic weather forecasts of weather fields using the Geostatistical Output Perturbation (GOP) method of Gel, Raftery, and Gneiting (JASA, 2004).

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Version

Install

install.packages('ProbForecastGOP')

Monthly Downloads

65

Version

1.3.2

License

GPL (>= 2)

Maintainer

Veronica J Berrocal

Last Published

October 29th, 2012

Functions in ProbForecastGOP (1.3.2)

Internal function used to compute the inter-site distance between sites.

gencauchy.variog.fn

Internal function used to estimate the variance, range, smoothness, and long-range parameters in the generalized Cauchy variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric generalized Cauchy variogram to an empirical variogram via the method of Weighted Least Squares keeping the nugget effect fixed.

Plot of weather fields

spher.variog.fn

Internal function used to estimate the variance and range parameters in the spherical variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric spherical variogram to an empirical variogram via the method of Weighted Least Squares keeping the nugget effect fixed.

Internal function called by the Field.sim and the ProbForecastGOP functions to return a graphical display of the quantile fields of an ensemble of forecast weather field on a region delimited by the lower and upper bound for the longitude and the latitude.

Internal function used to estimate the nugget effect, variance, and range parameters in the spherical variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric spherical variogram to an empirical variogram via the method of Weighted Least Squares.

Sea Level Pressure in the Pacific Northwest for the period Jan. 12, 2000 - Jan. 14, 2000

ProbForecastGOP-package

Probabilistic weather forecast using the GOP method

Internal function used to return a graphical display of a weather field on a region delimited by the lower and upper bound for the longitude and the latitude.

gauss.variog.fn

Internal function used to estimate the variance and range parameters in the gaussian variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric gaussian variogram to an empirical variogram via the method of Weighted Least Squares keeping the nugget effect fixed.

Internal function used to estimate the nugget effect, variance, and range parameters in the exponential variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric exponential variogram to an empirical variogram via the method of Weighted Least Squares.

Internal function used to generate a numeric square matrix that is subsequently used to produce graphical displays of the weather field.

Longitudes of localities in the North American Pacific Northwest

Temperature in the Pacific Northwest during January-June 2000

Latitudes of localities in the North American Pacific Northwest

Internal function used to estimate the nugget effect, variance, and range parameters in the gaussian variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric gaussian variogram to an empirical variogram via the method of Weighted Least Squares.

Internal function called by the Field.sim and the ProbForecastGOP functions to simulate realizations of forecast weather fields.

Internal function called by the Field.sim and ProbForecastGOP functions to return a graphical display of the members of an ensemble of forecast weather field on a region delimited by the lower and upper bound for the longitude and the latitude.

matern.variog.fn

Internal function used to estimate the variance, range, and smoothness parameters in the Whittle-Matern variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric Whittle-Matern variogram to an empirical variogram via the method of Weighted Least Squares keeping the nugget effect fixed.

Internal function used to estimate the nugget effect, variance, range, and smoothness parameters in the Whittle-Matern variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric Whittle-Matern variogram to an empirical variogram via the method of Weighted Least Squares.

Computation of parametric variogram model

Internal function used to estimate the variance and range parameters in the exponential variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric exponential variogram to an empirical variogram via the method of Weighted Least Squares keeping the nugget effect fixed.

gencauchy.variog

Internal function used to estimate the nugget effect, variance, range, smoothness, and long-range parameters in the generalized Cauchy variogram. This function is called by the Variog.fit and ProbForecastGOP functions when fitting a parametric generalized Cauchy variogram to an empirical variogram via the method of Weighted Least Squares.

calc.difference

Internal function used to compute the empirical variogram of a random variable averaged over time.

48-hour Temperature Forecast for the North American Pacific Northwest

Internal function used to compute the inter-site directional distance between sites.