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rtide

Lifecycle: stableR-CMD-check

License: GPL3CRAN statusCRAN downloadsCodecov test coverage

Introduction

rtide is an R package to calculate tide heights based on tide station harmonics.

It includes the harmonics data for 1293 US stations.

Installation

To install the latest release from CRAN

install.packages("rtide")

To install the developmental version from GitHub

# install.packages("pak")pak::pak("millerlp/rtide")

Utilisation

library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")

Shiny

Tide heights can be also obtained using rtide through a shiny interface developed by Seb Dalgarno.

Contribution

Please report any issues.

Pull requests are always welcome.

Inspiration

The harmonics data was converted from https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz, NOAA web site data processed by David Flater for XTide. The code to calculate tide heights from the harmonics is based on XTide.

Tide prediction updates

The harmonic constituent data for the various tide stations are updated yearly by the XTide maintainer. The rtide package originally used a harmonic data base from 2015. An updated harmonic constituent database file from 2025-12-28 has been incorporated into rtide as of v0.0.12.9000 (August 2026), which adds many new tide stations, as well as slightly changing the harmonic constituent values for many stations. As a result, tide height predictions produced with earlier versions of the rtide package (v0.0.12 and earlier) may produce slightly different values than the predictions generated by the new harmonic data base. Those differences may typically only amount to a centimeter or less.

About

R package to calculate tide heights

poissonconsulting.github.io/rtide/

Topics

cranrstatsrtidetidal

Resources

Readme
GPL-3.0 license

Code of conduct

Code of conduct

Contributing

Contributing
Activity

Stars

15 stars

Watchers

5 watching

Forks

5 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
Skip to content
BranchesTags
Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
Skip to content
BranchesTags
Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
Skip to content
BranchesTags
Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
Skip to content
BranchesTags
Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
Skip to content
BranchesTags
Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
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Used by
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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
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Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

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GitHub - millerlp/rtide: R package to calculate tide heights · GitHub
Skip to content
BranchesTags
Repository files navigation
rtide
Lifecycle: stableR-CMD-check
License: GPL3CRAN statusCRAN downloadsCodecov test coverage
Introduction
rtide is an R package to calculate tide heights based on tide station
harmonics.
It includes the harmonics data for 1293 US stations.
Installation
To install the latest release from CRAN
install.packages("rtide")
To install the developmental version from
GitHub
# install.packages("pak")pak::pak("millerlp/rtide")
Utilisation
library(tibble)
library(rtide)
#> rtide is not suitable for navigationdata<-rtide::tide_height(
"Monterey Harbor",
from= as.Date("2016-07-13"), to= as.Date("2016-07-15"),
minutes=10L, tz="America/Los_Angeles"
)
print(data)
#> # A tibble: 432 × 3#> Station DateTime TideHeight#> <chr> <dttm> <dbl>#> 1 Monterey, Monterey Harbor, California 2016-07-13 00:00:00 0.523#> 2 Monterey, Monterey Harbor, California 2016-07-13 00:10:00 0.505#> 3 Monterey, Monterey Harbor, California 2016-07-13 00:20:00 0.489#> 4 Monterey, Monterey Harbor, California 2016-07-13 00:30:00 0.476#> 5 Monterey, Monterey Harbor, California 2016-07-13 00:40:00 0.465#> 6 Monterey, Monterey Harbor, California 2016-07-13 00:50:00 0.457#> 7 Monterey, Monterey Harbor, California 2016-07-13 01:00:00 0.452#> 8 Monterey, Monterey Harbor, California 2016-07-13 01:10:00 0.449#> 9 Monterey, Monterey Harbor, California 2016-07-13 01:20:00 0.449#> 10 Monterey, Monterey Harbor, California 2016-07-13 01:30:00 0.451#> # 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="America/Los_Angeles")
) +
scale_y_continuous(name="Tide Height (m)") +
ggtitle("Monterey Harbour")
Shiny
Tide heights can be also obtained using rtide through a shiny
interface developed by
Seb Dalgarno.
Contribution
Please report any issues.
Pull requests are always
welcome.
Inspiration
The harmonics data was converted from
https://github.com/millerlp/rtide/blob/main/data-raw/harmonics-dwf-20251228-free.tar.xz,
NOAA web site data processed by David Flater for
XTide. The code to calculate tide
heights from the harmonics is based on XTide.
Tide prediction updates
The harmonic constituent data for the various tide stations are updated
yearly by the XTide maintainer. The rtide package originally used a
harmonic data base from 2015. An updated harmonic constituent database
file from 2025-12-28 has been incorporated into rtide as of
v0.0.12.9000 (August 2026), which adds many new tide stations, as well
as slightly changing the harmonic constituent values for many stations.
As a result, tide height predictions produced with earlier versions of
the rtide package (v0.0.12 and earlier) may produce slightly different
values than the predictions generated by the new harmonic data base.
Those differences may typically only amount to a centimeter or less.
About
R package to calculate tide heights
poissonconsulting.github.io/rtide/
Topics
cranrstatsrtidetidal
Resources
Readme
GPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Stars
15 stars
Watchers
5 watching
Forks
5 forks
Report repository
Releases
Packages
Used by
Contributors
Languages