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Populate the closest CDEC station data.

Source: R/cdecHelpers.R
popCDEC.Rd

This function will search for the closest CDEC station to each point within your data frame and retrieve water tempearture, turbidity, or electroconductivity data from the closest time point to the sampling time of your point of interest. If a CDEC gage does not have data of interest, either in terms of the sensor of interest or at the time point of interest, NA or the value of the next closest time point for that station will be provided, if available.

Usage

popCDEC(
  df,
  cdecClosest = NULL,
  variable = c("temp", "turbidity", "ec"),
  waterColumn = c("top", "bottom")
)

Arguments

df

A data frame with your station name (station), latitude (lat), longitude (lon), and time (time). Ensure that time is a date-time format, YYYY-MM-DD HH:MM:SS.

cdecClosest

A list of the closest stations per coordinate of interest. If not provided, calcNearestCDEC() will be used on the provided df.

variable

Which water quality variable are you after. Supports only water temperature (temp), turbidity (turbidity), or electroconductivity (ec). Will default to temp.

waterColumn

Where in the water column to look for sensor data, top (top) or bottom (bottom)? Will default to top

Value

A data frame with water quality of interest from the closest CDEC gage at the closest time stamp.

Examples

if (FALSE) { # \dontrun{
df <- data.frame(station = "306", lat = 38.00064,
lon = -122.4136, time = "2023-01-01 10:00:00", temp = 10)

popCDEC(df)
} # }