AMplot

Provides a barplot for an annual maximum sample

Functions to implement the methods of the Flood Estimation Handbook (FEH), associated updates and the revitalised flood hydrograph model (ReFH). Currently the package uses NRFA peak flow dataset version 13. Aside from FEH functionality, further hydrological functions are available. Most of the methods implemented in this package are described in one or more of the following: "Flood Estimation Handbook", Centre for Ecology & Hydrology (1999, ISBN:0 948540 94 X). "Flood Estimation Handbook Supplementary Report No. 1", Kjeldsen (2007, ISBN:0 903741 15 7). "Regional Frequency Analysis - an approach based on L-moments", Hosking & Wallis (1997, ISBN: 978 0 521 01940 8). "Proposal of the extreme rank plot for extreme value analysis: with an emphasis on flood frequency studies", Hammond (2019, <doi:10.2166/nh.2019.157>). "Making better use of local data in flood frequency estimation", Environment Agency (2017, ISBN: 978 1 84911 387 8). "Sampling uncertainty of UK design flood estimation" , Hammond (2021, <doi:10.2166/nh.2021.059>). "Improving the FEH statistical procedures for flood frequency estimation", Environment Agency (2008, ISBN: 978 1 84432 920 5). "Low flow estimation in the United Kingdom", Institute of Hydrology (1992, ISBN 0 948540 45 1). Wallingford HydroSolutions, (2016, <http://software.hydrosolutions.co.uk/winfap4/Urban-Adjustment-Procedure-Technical-Note.pdf>). Data from the UK National River Flow Archive (<https://nrfa.ceh.ac.uk/>, terms and conditions: <https://nrfa.ceh.ac.uk/costs-terms-and-conditions>).

Anthony Hammond

UKFE

UK Flood Estimation

AMplot function

<dl><dt>x</dt>
<dd>A data.frame with at least two columns. The first a date column and the second the annual maximum (AM) sequence. A third column with the station id can be applied which is then used for the default plot title.</dd>
<dt>ylab</dt>
<dd>Label for the y axis (character string).</dd>
<dt>xlab</dt>
<dd>Label for the x axis (character string).</dd>
<dt>main</dt>
<dd>Title for the plot (character string). The default is 'Annual maximum sample:', where : is followed by an ID number if this is included in a third column of the dataframe x.</dd></dl>

Arguments

Author

Plot of the annual maximum sample — AMplot

<dl>

<dt>x</dt>
<dd>A data.frame with at least two columns. The first a date column and the second the annual maximum (AM) sequence. A third column with the station id can be applied which is then used for the default plot title.</dd>


<dt>ylab</dt>
<dd>Label for the y axis (character string).</dd>


<dt>xlab</dt>
<dd>Label for the x axis (character string).</dd>


<dt>main</dt>
<dd>Title for the plot (character string). The default is 'Annual maximum sample:', where : is followed by an ID number if this is included in a third column of the dataframe x.</dd>

</dl>

AMplot: Plot of the annual maximum sample

Description

Usage

Value

Arguments

Author

Details

Examples