Daily Streamflow Trend and Change Point Screening
Add MetaData to Database
Create custom axis starting on hydrologic year start month
Boughton recursive digital filter
Eckhardt two parameter recursive digital filter
One parameter recursive digital filter
Seasonal baseflow percentage
Baseflow statistics
Check Completeness
Create a Time Series of daily streamflow observations
Partial Duration Series and Event Statistics for streamflow droughts
Get the partial duration series for streamflow droughts
Find the start, middle, end, and duration of seasonal droughts
Drop hydrologic years
Flow Duration Curve
Screen Daily Discharge Time Series for Temporal Trends and Change Poin...
Get station information for hydrometric stations
Returns plot titles and labels based on plot type and language prefere...
Add hydrologic Year, month, and doy columns to a daily time series
Calculate mean annual minimum n-day flows
Streamflow metrics
missingness test
Moving quantile threshold
Sum missing data points from a daily time series
Missing data runs for daily time series.
Calculate baseflow peak statistics
Center of Volume
Day of year for annual maximum series
Annual maximum series
Calculate the inter-event duration
Get the flow peaks over a threshold
Calculate flow quantiles
Read file of streamflows
Plot flow regime
Remove MetaData for one station from database
Change point time series plot
Internal wrapper for creating trend and change-point plots
Plot one or more frames from the summary screening plot
Plot a metric with trend and change points
Create a plot of the daily streamflow time series
Internal wrapper for creating trend and change-point summary plots
Create a summary screening plot
Set plot titles
Retrieve Station Info
Add calendar year, month, and day of year columns
Screens daily streamflow time series for temporal trends and change-points. This package has been primarily developed for assessing the quality of daily streamflow time series. It also contains tools for plotting and calculating many different streamflow metrics. The package can be used to produce summary screening plots showing change-points and significant temporal trends for high flow, low flow, and/or baseflow statistics, or it can be used to perform more detailed hydrological time series analyses. The package was designed for screening daily streamflow time series from Water Survey Canada and the United States Geological Survey but will also work with streamflow time series from many other agencies. Package update to version 2.0 made updates to read.flows function to allow loading of GRDC and ROBIN streamflow record formats. This package uses the `changepoint` package for change point detection. For more information on change point methods, see the changepoint package at <https://cran.r-project.org/package=changepoint>.