<!-- Generated by pkgdown: do not edit by hand -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Calculate PEC surface water due to runoff and erosion as in Exposit 3 — PEC_sw_exposit_runoff • pfm</title>
<!-- jquery -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
<!-- Bootstrap -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha256-916EbMg70RQy9LHiGkXzG8hSg9EdNy97GazNG/aiY1w=" crossorigin="anonymous" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha256-U5ZEeKfGNOja007MMD3YBI0A3OSZOQbeG6z2f2Y0hu8=" crossorigin="anonymous"></script>
<!-- Font Awesome icons -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.7.1/css/all.min.css" integrity="sha256-nAmazAk6vS34Xqo0BSrTb+abbtFlgsFK7NKSi6o7Y78=" crossorigin="anonymous" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.7.1/css/v4-shims.min.css" integrity="sha256-6qHlizsOWFskGlwVOKuns+D1nB6ssZrHQrNj1wGplHc=" crossorigin="anonymous" />
<!-- clipboard.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.4/clipboard.min.js" integrity="sha256-FiZwavyI2V6+EXO1U+xzLG3IKldpiTFf3153ea9zikQ=" crossorigin="anonymous"></script>
<!-- headroom.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.9.4/headroom.min.js" integrity="sha256-DJFC1kqIhelURkuza0AvYal5RxMtpzLjFhsnVIeuk+U=" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.9.4/jQuery.headroom.min.js" integrity="sha256-ZX/yNShbjqsohH1k95liqY9Gd8uOiE1S4vZc+9KQ1K4=" crossorigin="anonymous"></script>
<!-- pkgdown -->
<link href="../pkgdown.css" rel="stylesheet">
<script src="../pkgdown.js"></script>
<meta property="og:title" content="Calculate PEC surface water due to runoff and erosion as in Exposit 3 — PEC_sw_exposit_runoff" />
<meta property="og:description" content="This is a reimplementation of the calculation described in the Exposit 3.02 spreadsheet file,
in the worksheet "Konzept Runoff"." />
<meta name="twitter:card" content="summary" />
<!-- mathjax -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script>
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container template-reference-topic">
<header>
<div class="navbar navbar-default navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<span class="navbar-brand">
<a class="navbar-link" href="../index.html">pfm</a>
<span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="Released version">0.5.7</span>
</span>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>
<a href="../index.html">
<span class="fas fa fas fa-home fa-lg"></span>
</a>
</li>
<li>
<a href="../reference/index.html">Reference</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
</ul>
</div><!--/.nav-collapse -->
</div><!--/.container -->
</div><!--/.navbar -->
</header>
<div class="row">
<div class="col-md-9 contents">
<div class="page-header">
<h1>Calculate PEC surface water due to runoff and erosion as in Exposit 3</h1>
<div class="hidden name"><code>PEC_sw_exposit_runoff.Rd</code></div>
</div>
<div class="ref-description">
<p>This is a reimplementation of the calculation described in the Exposit 3.02 spreadsheet file,
in the worksheet "Konzept Runoff".</p>
</div>
<pre class="usage"><span class='fu'>PEC_sw_exposit_runoff</span>(
<span class='no'>rate</span>,
<span class='kw'>interception</span> <span class='kw'>=</span> <span class='fl'>0</span>,
<span class='no'>Koc</span>,
<span class='kw'>DT50</span> <span class='kw'>=</span> <span class='fl'>Inf</span>,
<span class='kw'>t_runoff</span> <span class='kw'>=</span> <span class='fl'>3</span>,
<span class='kw'>exposit_reduction_version</span> <span class='kw'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span>(<span class='st'>"3.02"</span>, <span class='st'>"3.01a"</span>, <span class='st'>"3.01a2"</span>, <span class='st'>"2.0"</span>),
<span class='kw'>V_ditch</span> <span class='kw'>=</span> <span class='fl'>30</span>,
<span class='kw'>V_event</span> <span class='kw'>=</span> <span class='fl'>100</span>,
<span class='kw'>dilution</span> <span class='kw'>=</span> <span class='fl'>2</span>
)</pre>
<h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
<table class="ref-arguments">
<colgroup><col class="name" /><col class="desc" /></colgroup>
<tr>
<th>rate</th>
<td><p>The application rate in g/ha</p></td>
</tr>
<tr>
<th>interception</th>
<td><p>The fraction intercepted by the crop</p></td>
</tr>
<tr>
<th>Koc</th>
<td><p>The sorption coefficient to soil organic carbon</p></td>
</tr>
<tr>
<th>DT50</th>
<td><p>The soil half-life in days</p></td>
</tr>
<tr>
<th>t_runoff</th>
<td><p>The time between application and the runoff event, where degradation occurs, in days</p></td>
</tr>
<tr>
<th>exposit_reduction_version</th>
<td><p>The version of the reduction factors to be used. "3.02" is the current
version used in Germany, "3.01a" is the version with additional percentages for 3 m and 6 m buffer
zones used in Switzerland. "3.01a2" is a version introduced for consistency with previous calculations
performed for a 3 m buffer zone in Switzerland, with the same reduction being applied to the dissolved
and the bound fraction.</p></td>
</tr>
<tr>
<th>V_ditch</th>
<td><p>The volume of the ditch is assumed to be 1 m * 100 m * 30 cm = 30 m3</p></td>
</tr>
<tr>
<th>V_event</th>
<td><p>The unreduced runoff volume, equivalent to 10 mm precipitation on 1 ha</p></td>
</tr>
<tr>
<th>dilution</th>
<td><p>The dilution factor</p></td>
</tr>
</table>
<h2 class="hasAnchor" id="source"><a class="anchor" href="#source"></a>Source</h2>
<p>Excel 3.02 spreadsheet available from
<a href='https://www.bvl.bund.de/DE/04_Pflanzenschutzmittel/03_Antragsteller/04_Zulassungsverfahren/07_Naturhaushalt/psm_naturhaush_node.html#doc1400590bodyText3'>https://www.bvl.bund.de/DE/04_Pflanzenschutzmittel/03_Antragsteller/04_Zulassungsverfahren/07_Naturhaushalt/psm_naturhaush_node.html#doc1400590bodyText3</a></p>
<h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>
<p>A list containing the following components</p><dl class='dl-horizontal'>
<dt>perc_runoff</dt><dd><p>The runoff percentages for dissolved and bound substance</p></dd>
<dt>runoff</dt><dd><p>A matrix containing dissolved and bound input for the different distances</p></dd>
<dt>PEC_sw_runoff</dt><dd><p>A matrix containing PEC values for dissolved and bound substance
for the different distances. If the rate was given in g/ha, the PECsw are in microg/L.</p></dd>
</dl>
<h2 class="hasAnchor" id="see-also"><a class="anchor" href="#see-also"></a>See also</h2>
<div class='dont-index'><p><code><a href='perc_runoff_exposit.html'>perc_runoff_exposit</a></code> for runoff loss percentages and <code><a href='perc_runoff_reduction_exposit.html'>perc_runoff_reduction_exposit</a></code> for runoff reduction percentages used</p></div>
<h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
<pre class="examples"><div class='input'> <span class='fu'>PEC_sw_exposit_runoff</span>(<span class='fl'>500</span>, <span class='kw'>Koc</span> <span class='kw'>=</span> <span class='fl'>150</span>)</div><div class='output co'>#> $perc_runoff
#> dissolved bound
#> 0.248 0.001
#>
#> $runoff
#> dissolved bound total
#> No buffer 1.240 0.00500 1.24500
#> 5 m 0.744 0.00300 0.74700
#> 10 m 0.496 0.00075 0.49675
#> 20 m 0.248 0.00025 0.24825
#>
#> $PEC_sw_runoff
#> dissolved bound total
#> No buffer 4.769231 0.019230769 4.788462
#> 5 m 4.133333 0.016666667 4.150000
#> 10 m 3.542857 0.005357143 3.548214
#> 20 m 2.480000 0.002500000 2.482500
#> </div><div class='input'> <span class='fu'>PEC_sw_exposit_runoff</span>(<span class='fl'>600</span>, <span class='kw'>Koc</span> <span class='kw'>=</span> <span class='fl'>10000</span>, <span class='kw'>DT50</span> <span class='kw'>=</span> <span class='fl'>195</span>, <span class='kw'>exposit</span> <span class='kw'>=</span> <span class='st'>"3.01a"</span>)</div><div class='output co'>#> $perc_runoff
#> dissolved bound
#> 0.037 0.159
#>
#> $runoff
#> dissolved bound total
#> No buffer 0.21964521 0.94388078 1.16352600
#> 3 m 0.16473391 0.66071655 0.82545046
#> 5 m 0.13178713 0.56632847 0.69811560
#> 6 m 0.12080487 0.42474635 0.54555122
#> 10 m 0.08785809 0.14158212 0.22944020
#> 20 m 0.04392904 0.04719404 0.09112308
#>
#> $PEC_sw_runoff
#> dissolved bound total
#> No buffer 0.8447893 3.6303107 4.4751000
#> 3 m 0.7844472 3.1462693 3.9307165
#> 5 m 0.7321507 3.1462693 3.8784200
#> 6 m 0.7106169 2.4985080 3.2091248
#> 10 m 0.6275578 1.0113008 1.6388586
#> 20 m 0.4392904 0.4719404 0.9112308
#> </div></pre>
</div>
<div class="col-md-3 hidden-xs hidden-sm" id="sidebar">
<h2>Contents</h2>
<ul class="nav nav-pills nav-stacked">
<li><a href="#arguments">Arguments</a></li>
<li><a href="#source">Source</a></li>
<li><a href="#value">Value</a></li>
<li><a href="#see-also">See also</a></li>
<li><a href="#examples">Examples</a></li>
</ul>
</div>
</div>
<footer>
<div class="copyright">
<p>Developed by Johannes Ranke.</p>
</div>
<div class="pkgdown">
<p>Site built with <a href="https://pkgdown.r-lib.org/">pkgdown</a> 1.4.1.</p>
</div>
</footer>
</div>
</body>
</html>