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Hydrogramme — Wikipédia
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vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Hydrogramme_théorique"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Hydrogramme théorique</span> </div> </a> <ul id="toc-Hydrogramme_théorique-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Références" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Références"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Références</span> </div> </a> <ul id="toc-Références-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voir_aussi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voir_aussi"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Voir aussi</span> </div> </a> <button aria-controls="toc-Voir_aussi-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Voir aussi</span> </button> <ul id="toc-Voir_aussi-sublist" class="vector-toc-list"> <li id="toc-Liens_internes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Liens_internes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Liens internes</span> </div> </a> <ul id="toc-Liens_internes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliographie" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bibliographie"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Bibliographie</span> </div> </a> <ul id="toc-Bibliographie-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Liens_externes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Liens_externes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Liens externes</span> </div> </a> <ul id="toc-Liens_externes-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Sommaire" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Basculer la table des matières" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Basculer la table des matières</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Hydrogramme</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Aller à un article dans une autre langue. Disponible en 19 langues." > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-19" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">19 langues</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%AE%D8%B7%D8%B7_%D9%85%D8%A7%D8%A6%D9%8A" title="مخطط مائي – arabe" lang="ar" hreflang="ar" data-title="مخطط مائي" data-language-autonym="العربية" data-language-local-name="arabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Hydrograff" title="Hydrograff – gallois" lang="cy" hreflang="cy" data-title="Hydrograff" data-language-autonym="Cymraeg" data-language-local-name="gallois" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Ganglinie" title="Ganglinie – allemand" lang="de" hreflang="de" data-title="Ganglinie" data-language-autonym="Deutsch" data-language-local-name="allemand" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Hydrograph" title="Hydrograph – anglais" lang="en" hreflang="en" data-title="Hydrograph" data-language-autonym="English" data-language-local-name="anglais" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Hidrograma" title="Hidrograma – espagnol" lang="es" hreflang="es" data-title="Hidrograma" data-language-autonym="Español" data-language-local-name="espagnol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/H%C3%BCdrograaf" title="Hüdrograaf – estonien" lang="et" hreflang="et" data-title="Hüdrograaf" data-language-autonym="Eesti" data-language-local-name="estonien" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Hidrograma" title="Hidrograma – basque" lang="eu" hreflang="eu" data-title="Hidrograma" data-language-autonym="Euskara" data-language-local-name="basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%87%DB%8C%D8%AF%D8%B1%D9%88%DA%AF%D8%B1%D8%A7%D9%81" title="هیدروگراف – persan" lang="fa" hreflang="fa" data-title="هیدروگراف" data-language-autonym="فارسی" data-language-local-name="persan" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Hidrograma" title="Hidrograma – galicien" lang="gl" hreflang="gl" data-title="Hidrograma" data-language-autonym="Galego" data-language-local-name="galicien" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Idrogramma" title="Idrogramma – italien" lang="it" hreflang="it" data-title="Idrogramma" data-language-autonym="Italiano" data-language-local-name="italien" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%8F%E3%82%A4%E3%83%89%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%95" title="ハイドログラフ – japonais" lang="ja" hreflang="ja" data-title="ハイドログラフ" data-language-autonym="日本語" data-language-local-name="japonais" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%93%D0%B8%D0%B4%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D1%84" title="Гидрограф – kazakh" lang="kk" hreflang="kk" data-title="Гидрограф" data-language-autonym="Қазақша" data-language-local-name="kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Dowrdresen_tewydh" title="Dowrdresen tewydh – cornique" lang="kw" hreflang="kw" data-title="Dowrdresen tewydh" data-language-autonym="Kernowek" data-language-local-name="cornique" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%93%D0%B8%D0%B4%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D1%84" title="Гидрограф – kirghize" lang="ky" hreflang="ky" data-title="Гидрограф" data-language-autonym="Кыргызча" data-language-local-name="kirghize" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%93%D0%B8%D0%B4%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D1%84" title="Гидрограф – mongol" lang="mn" hreflang="mn" data-title="Гидрограф" data-language-autonym="Монгол" data-language-local-name="mongol" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Hydrogram" title="Hydrogram – polonais" lang="pl" hreflang="pl" data-title="Hydrogram" data-language-autonym="Polski" data-language-local-name="polonais" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%93%D0%B8%D0%B4%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D1%84" title="Гидрограф – russe" lang="ru" hreflang="ru" data-title="Гидрограф" data-language-autonym="Русский" data-language-local-name="russe" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%93%D1%96%D0%B4%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D1%84" title="Гідрограф – ukrainien" lang="uk" hreflang="uk" data-title="Гідрограф" data-language-autonym="Українська" data-language-local-name="ukrainien" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%B0%B4%E6%96%87%E5%9C%96" title="水文圖 – chinois" lang="zh" hreflang="zh" data-title="水文圖" data-language-autonym="中文" data-language-local-name="chinois" class="interlanguage-link-target"><span>中文</span></a></li> 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data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Apparence</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">masquer</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Un article de Wikipédia, l'encyclopédie libre.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="fr" dir="ltr"><div class="bandeau-container metadata bandeau-article bandeau-niveau-ebauche"><div class="bandeau-cell bandeau-icone" style="display:table-cell;padding-right:0.5em"><span class="noviewer" typeof="mw:File"><a href="/wiki/Fichier:Circle-icons-water.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Circle-icons-water.svg/35px-Circle-icons-water.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Circle-icons-water.svg/53px-Circle-icons-water.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Circle-icons-water.svg/70px-Circle-icons-water.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p><strong class="bandeau-titre">Cet article est une <a href="/wiki/Aide:%C3%89bauche" title="Aide:Ébauche">ébauche</a> concernant l’<a href="/wiki/Hydrographie" title="Hydrographie">hydrographie</a>.</strong> </p><p>Vous pouvez partager vos connaissances en l’améliorant (<b><a href="/wiki/Aide:Comment_modifier_une_page" title="Aide:Comment modifier une page">comment ?</a></b>) selon les recommandations des <a href="/wiki/Projet:Accueil" title="Projet:Accueil">projets correspondants</a>. </p> </div></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fichier:Unit_hydrograph.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Unit_hydrograph.svg/220px-Unit_hydrograph.svg.png" decoding="async" width="220" height="155" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Unit_hydrograph.svg/330px-Unit_hydrograph.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/49/Unit_hydrograph.svg/440px-Unit_hydrograph.svg.png 2x" data-file-width="1170" data-file-height="826" /></a><figcaption>Un <b>hydrogramme</b> théorique : en abscisse, le temps écoulé (en heures) ; en ordonnée, le débit ou la hauteur <a href="/wiki/Pluviom%C3%A8tre" title="Pluviomètre">pluviométrique</a>.</figcaption></figure> <p>L’<b>hydrogramme</b> est le graphique de la variation temporelle du <a href="/wiki/D%C3%A9bit_(hydrologie)" title="Débit (hydrologie)">débit</a> d'écoulement d'eau, mesurée au sol. On utilise des hydrogrammes pour étudier cette variation soit au point d'un <a href="/wiki/Bassin_versant" title="Bassin versant">bassin versant</a> (<i>hydrogramme de précipitations</i>), soit à une section d’un <a href="/wiki/Cours_d%E2%80%99eau" class="mw-redirect" title="Cours d’eau">cours d’eau</a> (<i>hydrogramme de ruissellement</i>). L'hydrogramme diffère du <a href="/wiki/Pluviom%C3%A8tre#Pluviomètres_et_pluviographes" title="Pluviomètre">pluviogramme</a> car il indique en un point donné la réponse d'écoulement à un épisode pluvieux en intégrant à la fois la capacité locale d'évacuation (<a href="/wiki/Pente_(topographie)" title="Pente (topographie)">pente</a>, rugosité du relief) et la capacité locale d'<a href="/wiki/Absorption_(physique)" title="Absorption (physique)">absorption</a> du sol. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Définition"><span id="D.C3.A9finition"></span>Définition</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=1" title="Modifier la section : Définition" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=1" title="Modifier le code source de la section : Définition"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'hydrogramme est une information fondamentale pour établir les projets d'assainissement, de rétention d'eau (réservoirs, bassins d'écrêtement de crue) ou d'hydroélectricité (capacité des <a href="/wiki/%C3%89vacuateur_de_crue" class="mw-redirect" title="Évacuateur de crue">évacuateurs de crue</a>). </p><p>Dans la plupart des cas, l'hydrogramme est une courbe reconstituée par le bureau d'étude à partir de mesures pluviométriques ou de mesures de <a href="/wiki/Hydrom%C3%A9trie" title="Hydrométrie">jaugeage</a>, en lui supposant une forme <i>a priori</i> : on ne dispose en effet pratiquement jamais de l'hydrogramme au point géographique souhaité, de sorte qu'il faut s'appuyer sur les hydrogrammes de points voisins et sur les données du relief (contributions des différents points du bassin versant) pour en obtenir une estimation. </p><p>On distingue<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite_crochet">[</span>1<span class="cite_crochet">]</span></a></sup><sup class="reference cite_virgule">,</sup> sur un hydrogramme : </p> <ul><li>la partie montante (d’augmentation du débit), dite <b>courbe de concentration</b>. La durée correspondante est appelée <b>temps de montée</b> ;</li> <li>la pointe, ou pic, de l'hydrogramme ;</li> <li>la partie à décroissance rapide, dite <b>courbe de décrue</b>. La durée totale couvrant la concentration et la décrue est appelée <b>temps de base</b> de l'hydrogramme ;</li> <li>la branche finale, à décroissance plus lente, dite <b>courbe de <a href="/wiki/Tarissement" title="Tarissement">tarissement</a></b>.</li></ul> <p>L'hydrogramme est donc une donnée locale, relative à un épisode pluvieux (ou de <a href="/wiki/Crue" title="Crue">crue</a>) donné, dont on peut rechercher la <a href="/wiki/P%C3%A9riode_de_retour" title="Période de retour">période de retour</a>. Par conséquent, les ingénieurs sont fréquemment appelés à résoudre deux types de problèmes : </p> <ul><li>comment former l'hydrogramme en un point, connaissant les hydrogrammes de points voisins ?</li> <li>comment former l'hydrogramme pour un épisode de crue dont la période de retour (ou l'intensité) est différente de l'hydrogramme qu'on a pu mesurer ?</li></ul> <div class="mw-heading mw-heading2"><h2 id="Hydrogramme_théorique"><span id="Hydrogramme_th.C3.A9orique"></span>Hydrogramme théorique</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=2" title="Modifier la section : Hydrogramme théorique" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=2" title="Modifier le code source de la section : Hydrogramme théorique"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En l'absence de données, l'hydrogramme d'un <a href="/wiki/Bassin_versant" title="Bassin versant">bassin versant</a> peut être calculé théoriquement. Par exemple avec la formule suivante, développée par l'IRSTEA<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite_crochet">[</span>2<span class="cite_crochet">]</span></a></sup> : </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle Q(t)=2Q_{max}{\frac {\left({\frac {2t}{3D}}\right)^{4}}{1+\left({\frac {2t}{3D}}\right)^{8}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>Q</mi> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> <mo>=</mo> <mn>2</mn> <msub> <mi>Q</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> <mi>a</mi> <mi>x</mi> </mrow> </msub> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mrow> <mo>(</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>2</mn> <mi>t</mi> </mrow> <mrow> <mn>3</mn> <mi>D</mi> </mrow> </mfrac> </mrow> <mo>)</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msup> <mrow> <mn>1</mn> <mo>+</mo> <msup> <mrow> <mo>(</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>2</mn> <mi>t</mi> </mrow> <mrow> <mn>3</mn> <mi>D</mi> </mrow> </mfrac> </mrow> <mo>)</mo> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>8</mn> </mrow> </msup> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Q(t)=2Q_{max}{\frac {\left({\frac {2t}{3D}}\right)^{4}}{1+\left({\frac {2t}{3D}}\right)^{8}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f919199a986b332d959afed87a368ebb2a23fc61" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -5.005ex; width:25.759ex; height:11.176ex;" alt="{\displaystyle Q(t)=2Q_{max}{\frac {\left({\frac {2t}{3D}}\right)^{4}}{1+\left({\frac {2t}{3D}}\right)^{8}}}}"></span> </p><p>où : </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle Q}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>Q</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Q}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8752c7023b4b3286800fe3238271bbca681219ed" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:1.838ex; height:2.509ex;" alt="{\displaystyle Q}"></span> = <a href="/wiki/D%C3%A9bit_(physique)" title="Débit (physique)">débit</a> en m³/s</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle t}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>t</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle t}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/65658b7b223af9e1acc877d848888ecdb4466560" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.84ex; height:2.009ex;" alt="{\displaystyle t}"></span> = <a href="/wiki/Temps_(physique)" title="Temps (physique)">temps</a> en heure</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle Q_{max}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>Q</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> <mi>a</mi> <mi>x</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Q_{max}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/35c58d3fe3319f3c622365b1de9db92cb0fa5e92" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:5.323ex; height:2.509ex;" alt="{\displaystyle Q_{max}}"></span> = débit de pointe en m³/s</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle D}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>D</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle D}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f34a0c600395e5d4345287e21fb26efd386990e6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.924ex; height:2.176ex;" alt="{\displaystyle D}"></span> = <a href="/wiki/Temps_de_concentration" title="Temps de concentration">temps de concentration</a> en heure</li></ul> <p><br /> </p> <div class="mw-heading mw-heading2"><h2 id="Références"><span id="R.C3.A9f.C3.A9rences"></span>Références</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=3" title="Modifier la section : Références" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=3" title="Modifier le code source de la section : Références"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small decimal" style=""><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink noprint"><a href="#cite_ref-1">↑</a> </span><span class="reference-text"><span class="ouvrage" id="Amat2008"><span class="ouvrage" id="Jean-Paul_Amat2008">Jean-Paul <span class="nom_auteur">Amat</span>, <cite class="italique">Éléments de géographie physique</cite>, Bréal, <abbr class="abbr" title="collection">coll.</abbr> « Grand Amphi Géographie », <time>2008</time>, 464 <abbr class="abbr" title="pages">p.</abbr> <small style="line-height:1em;">(<a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Sp%C3%A9cial:Ouvrages_de_r%C3%A9f%C3%A9rence/978-2-7495-0205-2" title="Spécial:Ouvrages de référence/978-2-7495-0205-2"><span class="nowrap">978-2-7495-0205-2</span></a> et <a href="/wiki/Sp%C3%A9cial:Ouvrages_de_r%C3%A9f%C3%A9rence/2-7495-0205-5" title="Spécial:Ouvrages de référence/2-7495-0205-5"><span class="nowrap">2-7495-0205-5</span></a>, <a rel="nofollow" class="external text" href="https://books.google.com/books?id=ASWsEs_4zMEC&printsec=frontcover">lire en ligne</a>)</small>, <abbr class="abbr" title="page">p.</abbr> 178<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=%C3%89l%C3%A9ments+de+g%C3%A9ographie+physique&rft.pub=Br%C3%A9al&rft.aulast=Amat&rft.aufirst=Jean-Paul&rft.date=2008&rft.pages=178&rft.tpages=464&rft.isbn=978-2-7495-0205-2&rfr_id=info%3Asid%2Ffr.wikipedia.org%3AHydrogramme"></span></span></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink noprint"><a href="#cite_ref-2">↑</a> </span><span class="reference-text"><span class="ouvrage">« <a rel="nofollow" class="external text" href="https://www.institut-numerique.org/41-methodologie-et-resultats-521b11acdd216"><cite style="font-style:normal;">4.1 Méthodologie et résultats / 4.1.3 Estimation des volumes caractéristiques des crues</cite></a> » <small style="line-height:1em;">(consulté le <time class="nowrap" datetime="2019-07-22" data-sort-value="2019-07-22">22 juillet 2019</time>)</small></span></span> </li> </ol></div> </div> <div class="mw-heading mw-heading2"><h2 id="Voir_aussi">Voir aussi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=4" title="Modifier la section : Voir aussi" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=4" title="Modifier le code source de la section : Voir aussi"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Liens_internes">Liens internes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=5" title="Modifier la section : Liens internes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=5" title="Modifier le code source de la section : Liens internes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Hydrologie_isotopique" title="Hydrologie isotopique">Hydrologie isotopique</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Bibliographie">Bibliographie</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=6" title="Modifier la section : Bibliographie" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=6" title="Modifier le code source de la section : Bibliographie"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="ouvrage" id="Rémeniéras1960"><span class="ouvrage" id="G._Rémeniéras1960">G. Rémeniéras, <cite class="italique">L'hydrologie de l'ingénieur</cite>, <a href="/wiki/Eyrolles" title="Eyrolles">Eyrolles</a>, <time>1960</time><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=L%27hydrologie+de+l%27ing%C3%A9nieur&rft.pub=Eyrolles&rft.aulast=R%C3%A9meni%C3%A9ras&rft.aufirst=G.&rft.date=1960&rfr_id=info%3Asid%2Ffr.wikipedia.org%3AHydrogramme"></span></span></span></li></ul> <div class="mw-heading mw-heading3"><h3 id="Liens_externes">Liens externes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Hydrogramme&veaction=edit&section=7" title="Modifier la section : Liens externes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Hydrogramme&action=edit&section=7" title="Modifier le code source de la section : Liens externes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://hmf.enseeiht.fr/travaux/CD9899/travaux/optsee/bei/g3pj3/hu.htm">La méthode de l'hydrogramme unitaire</a> (cours de l'<a href="/wiki/%C3%89cole_nationale_sup%C3%A9rieure_d%27%C3%A9lectrotechnique,_d%27%C3%A9lectronique,_d%27informatique,_d%27hydraulique_et_des_t%C3%A9l%C3%A9communications" title="École nationale supérieure d'électrotechnique, d'électronique, d'informatique, d'hydraulique et des télécommunications">ENSEEIHT</a>)</li></ul> <div class="navbox-container" style="clear:both;"> <table class="navbox collapsible noprint autocollapse" style=""> <tbody><tr><th class="navbox-title" colspan="3" style="background:PaleTurquoise;"><div style="float:left; width:6em; text-align:left"><div class="noprint plainlinks nowrap tnavbar" style="padding:0; font-size:xx-small; color:var(--color-emphasized, #000000);"><a href="/wiki/Mod%C3%A8le:Palette_Hydrologie" title="Modèle:Palette Hydrologie"><abbr class="abbr" title="Voir ce modèle.">v</abbr></a> · <a class="external text" href="https://fr.wikipedia.org/w/index.php?title=Mod%C3%A8le:Palette_Hydrologie&action=edit"><abbr class="abbr" title="Modifier ce modèle. Merci de prévisualiser avant de sauvegarder.">m</abbr></a></div></div><div style="font-size:110%"><a href="/wiki/Hydrologie" title="Hydrologie">Hydrologie</a></div></th> </tr> <tr> <th class="navbox-group" style="background:LightCyan;"><a href="/wiki/Bassin_versant" title="Bassin versant">Bassin versant</a></th> <td class="navbox-list" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/Alb%C3%A9do" title="Albédo">Albédo</a></li> <li><a href="/wiki/Coefficient_d%27%C3%A9coulement" title="Coefficient d'écoulement">Coefficient d'écoulement</a></li> <li><a href="/wiki/Cycle_de_l%27eau" title="Cycle de l'eau">Cycle de l'eau</a></li> <li><a href="/wiki/R%C3%A9seau_de_drainage_(g%C3%A9omorphologie)" title="Réseau de drainage (géomorphologie)">Réseau de drainage (géomorphologie)</a></li> <li><a href="/wiki/Drainage_(environnemental)" title="Drainage (environnemental)">Drainage (environnemental)</a></li> <li><a href="/wiki/Eaux_douces_souterraines_en_mer" title="Eaux douces souterraines en mer">Eaux douces souterraines en mer</a></li> <li><a href="/wiki/%C3%89vapotranspiration" title="Évapotranspiration">Évapotranspiration</a></li> <li><a href="/wiki/Fonte_des_neiges" title="Fonte des neiges">Fonte des neiges</a></li> <li><a href="/wiki/Interfluve" title="Interfluve">Interfluve</a></li> <li><a href="/wiki/Ligne_de_partage_des_eaux" title="Ligne de partage des eaux">Ligne de partage des eaux</a></li> <li><a href="/wiki/Ruissellement" title="Ruissellement">Ruissellement</a> <ul><li><a href="/wiki/Ruissellement_hypodermique" title="Ruissellement hypodermique">hypodermique</a></li> <li><a href="/wiki/Eau_de_ruissellement" title="Eau de ruissellement">Eau de ruissellement</a></li></ul></li> <li><a href="/wiki/Talweg" title="Talweg">Talweg</a></li> <li><a href="/wiki/Temps_de_concentration" title="Temps de concentration">Temps de concentration</a></li> <li><a href="/wiki/Tripoint_hydrographique" title="Tripoint hydrographique">Tripoint</a></li> <li><a href="/wiki/Vall%C3%A9e_fluviale" title="Vallée fluviale">Vallée fluviale</a></li></ul> </div></td> <td class="navbox-image" rowspan="6" style="vertical-align:middle;padding-left:7px"><span typeof="mw:File"><a href="/wiki/Fichier:Icono_Gota_de_Agua.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Icono_Gota_de_Agua.svg/40px-Icono_Gota_de_Agua.svg.png" decoding="async" width="40" height="57" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Icono_Gota_de_Agua.svg/60px-Icono_Gota_de_Agua.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Icono_Gota_de_Agua.svg/80px-Icono_Gota_de_Agua.svg.png 2x" data-file-width="744" data-file-height="1052" /></a></span></td> </tr> <tr> <th class="navbox-group" style="background:LightCyan;"><a href="/wiki/Pr%C3%A9cipitations" title="Précipitations">Précipitations</a></th> <td class="navbox-list navbox-even" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/%C3%89valuation_quantitative_des_pr%C3%A9cipitations" title="Évaluation quantitative des précipitations">Évaluation quantitative</a></li> <li><a class="mw-selflink selflink">Hydrogramme</a></li> <li><a href="/wiki/Hydrom%C3%A9trie" title="Hydrométrie">Hydrométrie</a></li> <li><a href="/wiki/Hy%C3%A9togramme" title="Hyétogramme">Hyétogramme</a></li> <li><a href="/wiki/Lame_d%27eau" title="Lame d'eau">Lame d'eau</a></li> <li><a href="/wiki/Pr%C3%A9vision_quantitative_de_pr%C3%A9cipitations" title="Prévision quantitative de précipitations">Prévision quantitative</a></li></ul> </div></td> </tr> <tr> <th class="navbox-group" style="background:LightCyan;">Types</th> <td class="navbox-list" style=""><div class="liste-horizontale"> <ul><li>Hydrologie <ul><li><a href="/wiki/Hydrologie_de_surface" title="Hydrologie de surface">de surface</a></li> <li><a href="/wiki/Hydrog%C3%A9ologie" title="Hydrogéologie">souterraine</a></li> <li><a href="/wiki/Hydrologie_isotopique" title="Hydrologie isotopique">isotopique</a></li></ul></li> <li><a href="/wiki/Hydrog%C3%A9ologie" title="Hydrogéologie">Hydrogéologie</a> <ul><li><a href="/wiki/Aquitard" title="Aquitard">Aquitard</a></li> <li><a href="/wiki/Aquiclude" title="Aquiclude">Aquiclude</a></li> <li><a href="/wiki/Conductivit%C3%A9_hydraulique" title="Conductivité hydraulique">Conductivité hydraulique</a></li> <li><a href="/wiki/Infiltration_(hydrologie)" title="Infiltration (hydrologie)">Infiltration</a></li> <li><a href="/wiki/Substratum" title="Substratum">Substratum</a></li> <li><a href="/wiki/Nappe_phr%C3%A9atique" title="Nappe phréatique">Nappe phréatique</a></li> <li><a href="/wiki/Rabattement_de_nappe" title="Rabattement de nappe">Rabattement de nappe</a></li></ul></li> <li><a href="/wiki/Hydrom%C3%A9t%C3%A9orologie" title="Hydrométéorologie">Hydrométéorologie</a></li> <li><a href="/wiki/Hydromorphologie" title="Hydromorphologie">Hydromorphologie</a></li> <li><a href="/wiki/%C3%89cohydrologie" title="Écohydrologie">Écohydrologie</a></li></ul> </div></td> </tr> <tr> <th class="navbox-group" style="background:LightCyan;">Calcul, <a href="/wiki/Simulation_informatique" title="Simulation informatique">Simulation</a></th> <td class="navbox-list navbox-even" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/D%C3%A9bit_(hydrologie)" title="Débit (hydrologie)">Débit</a> <ul><li><a href="/wiki/Module_(hydrologie)" title="Module (hydrologie)">Module</a></li> <li><a href="/wiki/QIX_(hydrologie)" title="QIX (hydrologie)">QIX</a></li> <li><a href="/wiki/QJX" title="QJX">QJX</a></li> <li><a href="/wiki/QMNA" title="QMNA">QMNA</a></li> <li><a href="/wiki/VCN3" title="VCN3">VCN3</a></li></ul></li> <li><a href="/wiki/Loi_de_Darcy" title="Loi de Darcy">Loi de Darcy</a></li> <li><a href="/wiki/Mod%C3%A8le_hydrologique" title="Modèle hydrologique">Modèle</a>, <a href="/wiki/HEC-HMS" title="HEC-HMS">HEC-HMS</a>, <a href="/wiki/IRIP" title="IRIP">Méthode IRIP</a></li> <li><a href="/wiki/R%C3%A9gime_hydrologique" title="Régime hydrologique">Régime</a> <ul><li><a href="/wiki/R%C3%A9gime_glaciaire" title="Régime glaciaire">glaciaire</a></li> <li><a href="/wiki/R%C3%A9gime_nival" title="Régime nival">nival</a></li> <li><a href="/wiki/R%C3%A9gime_nivo-pluvial" title="Régime nivo-pluvial">nivo-pluvial</a></li> <li><a href="/wiki/R%C3%A9gime_pluvial" title="Régime pluvial">pluvial</a></li> <li><a href="/wiki/R%C3%A9gime_pluvio-nival" title="Régime pluvio-nival">pluvio-nival</a></li></ul></li> <li><a href="/wiki/Station_hydrologique" title="Station hydrologique">Station</a></li> <li><a href="/wiki/Coefficient_de_Pard%C3%A9" title="Coefficient de Pardé">Coefficient de Pardé</a></li> <li><a href="/wiki/Statistique" title="Statistique">Statistiques</a> <ul><li><a href="/wiki/Analyse_fr%C3%A9quentielle" title="Analyse fréquentielle">Analyse fréquentielle</a></li> <li><a href="/wiki/Fonction_de_r%C3%A9partition" title="Fonction de répartition">Fonction de répartition</a></li> <li><a href="/wiki/Loi_de_Gumbel" title="Loi de Gumbel">Loi de Gumbel</a></li> <li><a href="/wiki/P%C3%A9riode_de_retour" title="Période de retour">Période de retour</a></li></ul></li></ul> </div></td> </tr> <tr> <th class="navbox-group" style="background:LightCyan;"><a href="/wiki/Exohydrologie" title="Exohydrologie">Exohydrologie</a></th> <td class="navbox-list" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/Eau_liquide_dans_l%27Univers" title="Eau liquide dans l'Univers">Eau liquide dans l'Univers</a></li> <li><a href="/wiki/Eau_sur_la_Lune" title="Eau sur la Lune">Eau sur la Lune</a></li> <li><a href="/wiki/Eau_sur_Mars" title="Eau sur Mars">Eau sur Mars</a></li></ul> </div></td> </tr> <tr> <th class="navbox-group" style="background:LightCyan;">Thèmes connexes</th> <td class="navbox-list navbox-even" style=""><div class="liste-horizontale"> <ul><li><a href="/wiki/Cartographie_des_risques" title="Cartographie des risques">Cartographie des risques</a></li> <li><a href="/wiki/Hydraulique" title="Hydraulique">Hydraulique</a></li> <li><a href="/wiki/Hydrographie" title="Hydrographie">Hydrographie</a></li> <li><a href="/wiki/M%C3%A9t%C3%A9orologie" title="Météorologie">Météorologie</a></li></ul> </div></td> </tr> <tr> <td class="navbox-banner" style="background:PaleTurquoise;" colspan="3"><a href="/wiki/Lexique_hydrologique" class="mw-redirect" title="Lexique hydrologique">Lexique</a></td></tr></tbody></table> </div> <ul id="bandeau-portail" class="bandeau-portail"><li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:M%C3%A9t%C3%A9orologie" title="Portail de la météorologie"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Circle-icons-weather.svg/24px-Circle-icons-weather.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Circle-icons-weather.svg/36px-Circle-icons-weather.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Circle-icons-weather.svg/48px-Circle-icons-weather.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:M%C3%A9t%C3%A9orologie" title="Portail:Météorologie">Portail de la météorologie</a></span> </span></li> <li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Eau" title="Portail de l’eau"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Circle-icons-water.svg/24px-Circle-icons-water.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Circle-icons-water.svg/36px-Circle-icons-water.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Circle-icons-water.svg/48px-Circle-icons-water.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:Eau" title="Portail:Eau">Portail de l’eau</a></span> </span></li> <li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Information_g%C3%A9ographique" title="Portail de l’information géographique"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/Map_ballonicon2.svg/24px-Map_ballonicon2.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/51/Map_ballonicon2.svg/36px-Map_ballonicon2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/51/Map_ballonicon2.svg/48px-Map_ballonicon2.svg.png 2x" data-file-width="100" data-file-height="100" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:Information_g%C3%A9ographique" title="Portail:Information géographique">Portail de l’information géographique</a></span> </span></li> </ul> <style data-mw-deduplicate="TemplateStyles:r194021218">.mw-parser-output .autres-projets>.titre{text-align:center;margin:0.2em 0}.mw-parser-output .autres-projets>ul{margin:0;padding:0}.mw-parser-output .autres-projets>ul>li{list-style:none;margin:0.2em 0;text-indent:0;padding-left:24px;min-height:20px;text-align:left;display:block}.mw-parser-output .autres-projets>ul>li>a{font-style:italic}@media(max-width:720px){.mw-parser-output .autres-projets{float:none}}</style><div class="autres-projets boite-grise boite-a-droite noprint js-interprojets"> <p class="titre">Sur les autres projets Wikimedia :</p> <ul class="noarchive plainlinks"> <li class="commons"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Hydrograms?uselang=fr">Hydrogramme</a>, sur <span class="project">Wikimedia Commons</span></li><li class="wiktionary"><a href="https://fr.wiktionary.org/wiki/hydrogramme" class="extiw" title="wikt:hydrogramme">hydrogramme</a>, <span class="nowrap">sur le <span class="project">Wiktionnaire</span></span></li> </ul> </div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐f69cdc8f6‐chdqs Cached time: 20241124220103 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.221 seconds Real time usage: 0.348 seconds Preprocessor visited node count: 1299/1000000 Post‐expand include size: 43444/2097152 bytes Template argument size: 9945/2097152 bytes Highest expansion depth: 14/100 Expensive parser function count: 1/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 3301/5000000 bytes Lua time usage: 0.103/10.000 seconds Lua memory usage: 5667965/52428800 bytes Number of Wikibase entities loaded: 1/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 246.917 1 -total 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