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	<id>https://wiki.bluemodel.org/index.php?action=history&amp;feed=atom&amp;title=Wave%3AAnnualRecurrenceProbability</id>
	<title>Wave:AnnualRecurrenceProbability - Revision history</title>
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	<link rel="alternate" type="text/html" href="https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;action=history"/>
	<updated>2026-05-07T14:32:46Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;diff=7865&amp;oldid=prev</id>
		<title>Froehlich: add reference</title>
		<link rel="alternate" type="text/html" href="https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;diff=7865&amp;oldid=prev"/>
		<updated>2023-12-09T14:35:23Z</updated>

		<summary type="html">&lt;p&gt;add reference&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:35, 9 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Wave AnnualRecurrenceProbability.png|thumb|right]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Wave AnnualRecurrenceProbability.png|thumb|right]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This analysis method calculates &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the &lt;/del&gt;the annual recurrence probility and the return period of annual maxima using the [https://glossary.ametsoc.org/wiki/Plotting_position &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Weibull &lt;/del&gt;plotting position] method.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This analysis method calculates the annual recurrence probility and the return period of annual maxima using the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{:Literature:Weibull_1939|Weibull}} &lt;/ins&gt;[https://glossary.ametsoc.org/wiki/Plotting_position plotting position] method.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;First, the maximum value in each hydrological year is determined. The probability of recurrence and the return period are then calculated using the following formulas:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;First, the maximum value in each hydrological year is determined. The probability of recurrence and the return period are then calculated using the following formulas:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l22&quot;&gt;Line 22:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Notes==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Notes==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* If two or more events have the same maximum value, they are assigned the same rank and thus have the same recurrence probability&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* If two or more events have the same maximum value, they are assigned the same rank and thus have the same recurrence probability&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;==Literature==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;references/&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:BlueM.Wave|A]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:BlueM.Wave|A]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Analysis functions|A]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Analysis functions|A]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Froehlich</name></author>
	</entry>
	<entry>
		<id>https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;diff=7861&amp;oldid=prev</id>
		<title>Froehlich: Froehlich moved page Wave:AnnualRecurrenceProbabilty to Wave:AnnualRecurrenceProbability: typo</title>
		<link rel="alternate" type="text/html" href="https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;diff=7861&amp;oldid=prev"/>
		<updated>2023-12-09T14:02:39Z</updated>

		<summary type="html">&lt;p&gt;Froehlich moved page &lt;a href=&quot;/index.php/Wave:AnnualRecurrenceProbabilty&quot; class=&quot;mw-redirect&quot; title=&quot;Wave:AnnualRecurrenceProbabilty&quot;&gt;Wave:AnnualRecurrenceProbabilty&lt;/a&gt; to &lt;a href=&quot;/index.php/Wave:AnnualRecurrenceProbability&quot; title=&quot;Wave:AnnualRecurrenceProbability&quot;&gt;Wave:AnnualRecurrenceProbability&lt;/a&gt;: typo&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:02, 9 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Froehlich</name></author>
	</entry>
	<entry>
		<id>https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;diff=7859&amp;oldid=prev</id>
		<title>Froehlich: Created page with &quot;{{wave_nav}}  right This analysis method calculates the the annual recurrence probility and the return period of annual maxima using the [https://glossary.ametsoc.org/wiki/Plotting_position Weibull plotting position] method.  First, the maximum value in each hydrological year is determined. The probability of recurrence and the return period are then calculated using the following formulas:  &lt;math&gt;P = \frac{m}{n+1}&lt;/mat...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.bluemodel.org/index.php?title=Wave:AnnualRecurrenceProbability&amp;diff=7859&amp;oldid=prev"/>
		<updated>2023-12-09T13:35:48Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{wave_nav}}  &lt;a href=&quot;/index.php/File:Wave_AnnualRecurrenceProbability.png&quot; title=&quot;File:Wave AnnualRecurrenceProbability.png&quot;&gt;thumb|right&lt;/a&gt; This analysis method calculates the the annual recurrence probility and the return period of annual maxima using the [https://glossary.ametsoc.org/wiki/Plotting_position Weibull plotting position] method.  First, the maximum value in each hydrological year is determined. The probability of recurrence and the return period are then calculated using the following formulas:  &amp;lt;math&amp;gt;P = \frac{m}{n+1}&amp;lt;/mat...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{wave_nav}}&lt;br /&gt;
&lt;br /&gt;
[[File:Wave AnnualRecurrenceProbability.png|thumb|right]]&lt;br /&gt;
This analysis method calculates the the annual recurrence probility and the return period of annual maxima using the [https://glossary.ametsoc.org/wiki/Plotting_position Weibull plotting position] method.&lt;br /&gt;
&lt;br /&gt;
First, the maximum value in each hydrological year is determined. The probability of recurrence and the return period are then calculated using the following formulas:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;P = \frac{m}{n+1}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
and&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;T = \frac{1}{P}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
where&lt;br /&gt;
:&amp;lt;code&amp;gt;m&amp;lt;/code&amp;gt;: ordered rank of the event (1 = largest event)&lt;br /&gt;
:&amp;lt;code&amp;gt;n&amp;lt;/code&amp;gt;: number of total events/years&lt;br /&gt;
:&amp;lt;code&amp;gt;P&amp;lt;/code&amp;gt;: probability of exceedance [-]&lt;br /&gt;
:&amp;lt;code&amp;gt;T&amp;lt;/code&amp;gt;: return period [years]&lt;br /&gt;
&lt;br /&gt;
The analysis results are a result table with all events and their properties, a result chart plotting the return periods and a result series in the main chart containing only the annual maxima.&lt;br /&gt;
&lt;br /&gt;
==Notes==&lt;br /&gt;
* If two or more events have the same maximum value, they are assigned the same rank and thus have the same recurrence probability&lt;br /&gt;
&lt;br /&gt;
[[Category:BlueM.Wave|A]]&lt;br /&gt;
[[Category:Analysis functions|A]]&lt;/div&gt;</summary>
		<author><name>Froehlich</name></author>
	</entry>
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