| read_amax {winfapReader} | R Documentation |
A function to read .AM files
Description
The function reads .AM files once these are in a local folder: these files contain information on annual maxima (AMAX) records extracted from the instantaneous river flow measurements. The function checks for the presence of any [AM Rejected] information and includes it in the output.
Usage
read_amax(station, loc_WinFapFiles = getwd())
Arguments
station |
NRFA station number(s) for which the .AM file (named |
loc_WinFapFiles |
the file.path of the WINFAP files, i.e. the location in which the
|
Value
a data.frame with information on the annual maxima for the station with the following columns
- Station
NRFA station number (can be a vector of station numbers)
- WaterYear
the correct water year for the peak flow
- Date
date of maximum flow
- Flow
the maximum flow in m3/s
- Stage
the stage (height) reached by the river - this information is used to derive the flow via a rating curve
- Rejected
logical, if TRUE the water year has been flagged as rejected by the NRFA
See Also
Information on the .AM files and river flow gauging in the UK can be found at the National River Flow Archive website https://nrfa.ceh.ac.uk