TidalCharacteristics {Tides}R Documentation

Calculate tidal characteristics

Description

Calculates the characteristics of observed tidal water levels. Wrapper of the functions extrema, IT and IF

Usage

TidalCharacteristics(h,h0 = h$h0,T2 = 5*60*60, hoffset = 3, filtconst = 1, dtMax = 15,unit = "mins", Tavg = 12.4*60 ) 
TC <- TidalCharacteristics(h,...)

Arguments

h Water level time series. data frame with time and h column
h0 Reference level, either single valued or vector with dimension corresponding to h
T2 'Lower' bound on half the quasi period, but higher than expected stagnant phase; default = 5h
hoffset Offset level, to prevent spurious maxima generation due to small fluctuations
filtconst Filtering constant for smoothing the time series
dtMax Maximum accepted time interval in a continuous series. Bigger time intervals are considered to be gaps
unit Unit of dtMax, Tavg
Tavg Average period of time series

Value

An object of class Tides, i.e. a list containing:
HL Data frame with extrema
h original water level data frame with additional attributes
gaps a data frame containing start and end times of gaps in the series
IF inundation frequency of the reference level
ITs inundation times at the reference level
DTs dry times at the reference level
h0 reference level
N Total number of cycles in time span

Author(s)

Tom Cox <tom.cox@ua.ac.be>

See Also

extrema, IT, plot.Tides

Examples

TC <- TidalCharacteristics(waterlevels)
TC
plot(TC)

[Package Tides version 0.2 Index]