Density for the tidal level at Brest

Gridded density for the tidal part of the sea level at Brest.

Usage

data(Brest.tide)

Format

The format is: List of 2

• $x num [1:512] 100 101 102 102 103 ...

• $y num [1:512] 0.00 5.84e-06 1.12e-05 1.66e-05 2.20e-05 ...

Details

This dataset gives an example of structure for further tidal densities. A desirable feature is that the values of y at end points should be zero (or numerically such) so that the first and last values of x indicate the Lowest possible value (Lowest Astronomical High Tide) and the Highest Astronomical Tide (HAT).

The length of the vectors could have the form \(2^p+1\) with \(p\) integer for speed considerations in convolution. However in the present package the vector y will usually be interpolated to a longer one and an optimized choice of length will have no effect.

Source

The density was obtained by digitalizing the image on page 222 of B. Simon's book.

References

B. Simon La marée océanique côtière. Institut océanographique, 2007.

Examples

data(Brest.tide)
plot(Brest.tide, type = "l",
   lwd = 2, col = "SteelBlue3")