fit.MAR1.amount: fit.MAR1.amount

In GWEX: Multi-Site Stochastic Models for Daily Precipitation and Temperature

fit.MAR1.amount

Description

estimate parameters which control the dependence between intensities with a MAR(1) process

Usage

fit.MAR1.amount(P.mat, isPeriod, th, copulaInt, M0, A)

Arguments

P.mat	precipitation matrix
isPeriod	vector of logical n x 1 indicating the days concerned by a 3-month period
th	threshold above which we consider that a day is wet (e.g. 0.2 mm)
copulaInt	type of dependance between inter-site amounts: 'Gaussian' or 'Student'
M0	covariance matrix of gaussianized prec. amounts for all pairs of stations
A	Matrix containing the autocorrelation (temporal) correlations

Value

list with the following items

• M0 covariance matrix of gaussianized prec. amounts for all pairs of stations

• A omega correlations for all pairs of stations

• covZ covariance matrix of the MAR(1) process

• sdZ standard deviation of the diagonal elements

• corZ correlation matrix of the MAR(1) process

• dfStudent degrees of freedom for the Student copula if CopulaInt is equal to "Student"

Author(s)

Guillaume Evin

References

Matalas, N. C. 1967. “Mathematical Assessment of Synthetic Hydrology.” Water Resources Research 3 (4): 937–45. https://doi.org/10.1029/WR003i004p00937.

Bárdossy, A., and G. G. S. Pegram. 2009. “Copula Based Multisite Model for Daily Precipitation Simulation.” Hydrology and Earth System Sciences 13 (12): 2299–2314. https://doi.org/10.5194/hess-13-2299-2009.

GWEX documentation built on Nov. 8, 2023, 5:06 p.m.