Carry out nodal modulation calculations for tidem()
. This function is based directly
on t_vuf
in the T_TIDE
Matlab package (Pawlowicz et al., 2002),
which inherits from the Fortran code described by Foreman (1978).
tidemVuf(t, j, latitude = NULL)
a single time in POSIXct()
format, with timezone "UTC"
.
integer vector, giving indices of tidal constituents to use.
optional numerical value containing the latitude in degrees North.
If not provided, u
in the return value will be a vector consisting of
repeated 0 value, and f
will be a vector of repeated 1 value.
A list
containing
items named v
, u
and f
as described in the T_TIDE
documentation,
as well in Pawlowicz et al. (2002) and Foreman (1978).
Foreman, M. G. G., 1978. Manual for Tidal Currents Analysis and Prediction. Pacific Marine Science Report. British Columbia, Canada: Institute of Ocean Sciences, Patricia Bay.
Pawlowicz, Rich, Bob Beardsley, and Steve Lentz, 2002. Classical tidal
harmonic analysis including error estimates in MATLAB using T_TIDE
.
Computers and Geosciences, 28, 929-937.
Other things related to tides:
[[,tidem-method
,
[[<-,tidem-method
,
as.tidem()
,
plot,tidem-method
,
predict.tidem()
,
summary,tidem-method
,
tidalCurrent
,
tidedata
,
tidem
,
tidem-class
,
tidemAstron()
,
webtide()