discharge1.0.0 package

Fourier Analysis of Discharge Data

allstats2

Calculate all characteristic stats for a site

annualExtremes

Calculate annual extreme flows.

annualnoise

Annual noise color

assert.equal.length

Check for equal length inputs

assert.for.year

Check for.year argument

assert.numeric.vector

Check for numeric vector

asStreamflow

Create streamflow object

circs

Estimate directional statistics for one-sigma events

compperiods

Compare residual variability across time periods

etowah

Etowah River Data

fft_metrics

Discrete Fourier Transform Metrics

fftmetrics

Summary of spectral anomolies for a specified year.

filterBaseline

Filter the baseline signal for a given time window

findMed

Find median value

fourierAnalysis

Extract seasonal signal from time series

getFPExt

Flood Pulse Extent (FPExt)

getHSAF

High Spectral Anomaly Frequency (HSAF)

getHSAM

High Spectral Anomaly Mangitude (HSAM)

getIDI

Inter-Draught Interval (IDI)

getIFI

Inter-Flood Interval (IFI)

getLSAF

Low Spectral Anomaly Frequency (LSAF)

getLSAM

Low Spectral Anomaly Mangitude (LSAM)

getNAA

Net Annual Anomaly (NAA)

getSignalParts

Signal parts

getTimingHSAM

Time of occurence of High Spectral Anomaly Magnitude (HSAM)

getTimingLSAM

Time of occurence of Low Spectral Anomaly Magnitude (LSAM)

getTransitionTime

Transition Time

independentEvents

Independent high- or low-flow events

lp3events

Find 2- and 10-year return levels

parameterslist

Calculate all characteristic stats from a list of files

prepareBaseline

Build baseline signal

residplot

Plot annual extreme residuals

sigmaeventsplot

Plot events by day of the year

sigmaHighFlows

Estimate catastrophic flow variability

sigmaLowFlows

Estimate catastrophic flow variability

sycamore

Sycamore Creek Data

Computes discrete fast Fourier transform of river discharge data and the derived metrics. The methods are described in J. L. Sabo, D. M. Post (2008) <doi:10.1890/06-1340.1> and J. L. Sabo, A. Ruhi, G. W. Holtgrieve, V. Elliott, M. E. Arias, P. B. Ngor, T. A. Räsänsen, S. Nam (2017) <doi:10.1126/science.aao1053>.

  • Maintainer: Samarth Shah
  • License: GPL-3
  • Last published: 2019-03-08