rtide
is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 637 US stations.
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from GitHub
# install.packages("pak")
pak::pak("poissonconsulting/rtide")
library(tibble)
library(rtide)
#> rtide is not suitable for navigation
data <- rtide::tide_height(
"Monterey Harbor",
from = as.Date("2016-07-13"), to = as.Date("2016-07-15"),
minutes = 10L, tz = "PST8PDT"
)
print(data)
#> # A tibble: 432 × 3
#> Station DateTime TideHeight
#> <chr> <dttm> <dbl>
#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.514
#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.496
#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.481
#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.468
#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.457
#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.449
#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.443
#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.440
#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.439
#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.441
#> # ℹ 422 more rows
library(ggplot2)
library(scales)
ggplot(data = data, aes(x = DateTime, y = TideHeight)) +
geom_line() +
scale_x_datetime(
name = "Date",
labels = date_format("%d %b %Y", tz = "PST8PDT")
) +
scale_y_continuous(name = "Tide Height (m)") +
ggtitle("Monterey Harbour")
Tide heights can be also obtained using rtide through a shiny interface developed by Seb Dalgarno.
Please report any issues.
Pull requests are always welcome.
Please note that the rtide project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.
The harmonics data was converted from
https://github.com/poissonconsulting/rtide/blob/main/data-raw/harmonics-dwf-20151227-free.tar.bz2,
NOAA web site data processed by David Flater for
XTide
. The code to calculate tide
heights from the harmonics is based on XTide
.
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