query_tac | R Documentation |
Query NOAA Tides and Currents stations
query_tac(
start,
end,
product,
station,
step = "3 days",
datum = "MLLW",
tz = "gmt"
)
start |
Character vector start date for query ("YYYY-MM-DD"). |
end |
Character vector end date for query ("YYYY-MM-DD"). |
product |
Specify data product type. Defaults to "water_temperature". See a complete listing of available products at https://tidesandcurrents.noaa.gov/api/#products. Note that all products are not available at all stations. All data are returned in metric units. |
station |
Station ID number. A complete listing of stations is available at https://tidesandcurrents.noaa.gov/stations.html. |
step |
Time step for data query. Default time step is 3 days ("3 days"), with a maximum time step of 30 days. Larger time steps will result in faster downloads for longer time periods. |
datum |
Queries regarding water level require a datum. If none is selected, then datum defaults to "MLLW," or Mean-Lower Low Water. Example datum selections are available to view at https://tidesandcurrents.noaa.gov/datums.html?id=8722607. |
tz |
Data product time zone. Defaults to GMT ("gmt"). Other options include Local Standard Time ("lst") and Local Standard/Local Daylight Time ("lst_ldt"). |
query_tac(start = "1994-03-16",
end ="1994-05-18",
step = "30 days",
product = "water_temperature",
station = 8631044)
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