{"id":288,"date":"2017-05-08T17:00:54","date_gmt":"2017-05-08T21:00:54","guid":{"rendered":"https:\/\/www.guides-sports-loisirs.ca\/patinoires\/?page_id=288"},"modified":"2018-06-04T16:10:43","modified_gmt":"2018-06-04T20:10:43","slug":"notions-base","status":"publish","type":"page","link":"https:\/\/www.guides-sports-loisirs.ca\/patinoires\/meteo\/notions-base\/","title":{"rendered":"Notions de base"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row row_height_percent=\u00a0\u00bb0&Prime; override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb2&Prime; top_padding=\u00a0\u00bb3&Prime; bottom_padding=\u00a0\u00bb2&Prime; overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; shift_y=\u00a0\u00bb0&Prime;][vc_column column_width_use_pixel=\u00a0\u00bbyes\u00a0\u00bb overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; medium_width=\u00a0\u00bb0&Prime; shift_x=\u00a0\u00bb0&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; width=\u00a0\u00bb1\/1&Prime; column_width_pixel=\u00a0\u00bb800&Prime;][vc_column_text]Le d\u00e9veloppement technologique des instruments de mesure de la m\u00e9t\u00e9o est tel que les pr\u00e9visions n\u2019ont jamais \u00e9t\u00e9 aussi pr\u00e9cises. Les d\u00e9cisions d\u2019un gestionnaire de patinoire ou d\u2019un chef d\u2019\u00e9quipe peuvent se fonder sur la p\u00e9riode pr\u00e9sente plus 12 heures. Les proc\u00e9dures de travail sont fonction des pr\u00e9visions pour les 12 prochaines heures. Les op\u00e9rations en cours se d\u00e9roulent selon les conditions en cours. Si une variation du temps se pointe \u00e0 l\u2019horizon, on peut effectuer des ajustements mineurs aux proc\u00e9dures ou m\u00eame effectuer des mesures correctives dans l\u2019imm\u00e9diat ou dans les heures qui suivront.[\/vc_column_text][vc_accordion][vc_accordion_tab title=\u00a0\u00bbLa zone rouge\u00a0\u00bb][vc_column_text]Les temp\u00e9ratures avoisinant le point de cong\u00e9lation (0\u00a0oC) doivent \u00e9veiller tous les soup\u00e7ons, pouvant faire redouter le pire. Des pr\u00e9cipitations annonc\u00e9es pr\u00e9figurent un g\u00e2chis. Qu\u2019elles soient solides au d\u00e9but et liquides par la suite ou vice versa, c\u2019est au cours de la p\u00e9riode de transition entre ces deux phases que les dommages peuvent s\u2019av\u00e9rer importants.<\/p>\n<p>Un d\u00e9gel s\u2019\u00e9tirant sur 48 heures donne le temps de panser les plaies. Par contre, un gel suivant un redoux au cours duquel des pr\u00e9cipitations se sont produites risque de transformer toute surface de patinoire en biscuit gaufr\u00e9.<\/p>\n<p>L\u2019\u00e9tat de la surface de patinoire avant la \u00ab\u00a0temp\u00eate\u00a0\u00bb est un facteur important qui joue sur l\u2019ampleur des d\u00e9g\u00e2ts. Le plus important est d\u2019avoir ici encore une surface uniforme. Qu\u2019elle soit de neige ou d\u2019eau, cette surface doit tendre vers la plan\u00e9it\u00e9. Dans le pire des cas, on se retrouve avec une surface partiellement d\u00e9neig\u00e9e et un ou des tas de neige sur place. Dans l\u2019impossibilit\u00e9 de compl\u00e9ter une op\u00e9ration de d\u00e9neigement sur une surface glac\u00e9e, il est pr\u00e9f\u00e9rable de tout laisser en place.<\/p>\n<p>Synth\u00e8se d\u2019une s\u00e9quence malheureuse\u00a0: 0\u00a0\u00b0C + pr\u00e9vision de pr\u00e9cipitations + conditions pr\u00e9sentes variables + baisse importante de temp\u00e9rature + patinoire partiellement d\u00e9blay\u00e9e = ALERTE ROUGE![\/vc_column_text][\/vc_accordion_tab][vc_accordion_tab title=\u00a0\u00bbLa zone grise\u00a0\u00bb][vc_column_text]\u00c0 nouveau, des temp\u00e9ratures voisines du z\u00e9ro ravivent l\u2019incertitude. En l\u2019absence de pr\u00e9cipitations en cours ou pr\u00e9vues, les esprits s\u2019apaisent. En pr\u00e9sence de pr\u00e9cipitations en cours et en l\u2019absence d\u2019autres pr\u00e9cipitations pr\u00e9vues, seul le passage soudain de solide \u00e0 liquide ou vice versa devient un souci r\u00e9el.<\/p>\n<p>Comme en zone rouge, le redoux qui suit amenuise le mal. Le gel active la douleur. Cependant, la cessation rapide des pr\u00e9cipitations permet d\u2019intervenir rapidement et de limiter les d\u00e9g\u00e2ts.<\/p>\n<p>Quand les facteurs n\u00e9gatifs se conjuguent, l\u2019amplitude du tourment augmente. Quand ils se produisent isol\u00e9ment, leur impact est mitig\u00e9, car ils sont pr\u00e9visibles et on peut y rem\u00e9dier. Ainsi les grands froids, les grands vents ou un redoux sans pr\u00e9cipitations ont un impact mitig\u00e9 sur la surface de patinoire. Pr\u00e9voir de telles variations en att\u00e9nue la port\u00e9e.<\/p>\n<p>En zone grise, plus que dans toute autre situation, la vitesse de r\u00e9action combin\u00e9e au savoir-faire des acteurs de terrain p\u00e8se de tout son poids face aux impr\u00e9vus des conditions m\u00e9t\u00e9o.<\/p>\n<p>Synth\u00e8se de conditions hasardeuses\u00a0: 0\u00a0\u00b0C + pr\u00e9cipitations en cours mixtes + fin prochaine des pr\u00e9cipitations + refroidissement rapide + surface de patinoire sous contr\u00f4le.[\/vc_column_text][\/vc_accordion_tab][vc_accordion_tab title=\u00a0\u00bbLa zone verte\u00a0\u00bb][vc_column_text]Temp\u00e9rature &lt; 0 \u00b0C + les pieds au sec. \u00c0 l\u2019int\u00e9rieur de cette zone, tout converge vers le retour \u00e0 la normale.[\/vc_column_text][\/vc_accordion_tab][\/vc_accordion][vc_column_text]<strong>Quelques r\u00e8gles<\/strong>[\/vc_column_text][vc_separator sep_color=\u00a0\u00bbaccent\u00a0\u00bb el_width=\u00a0\u00bb75px\u00a0\u00bb el_height=\u00a0\u00bb2px\u00a0\u00bb][vc_tabs vertical=\u00a0\u00bbyes\u00a0\u00bb el_class=\u00a0\u00bbonglets\u00a0\u00bb][vc_tab title=\u00a0\u00bbR\u00e8gle 1&Prime; tab_id=\u00a0\u00bb1491418673-1-91528134639102&Prime;][vc_column_text]Consulter prioritairement les pr\u00e9visions m\u00e9t\u00e9o pour les 12 heures suivantes.[\/vc_column_text][\/vc_tab][vc_tab title=\u00a0\u00bbR\u00e8gle 2&Prime; tab_id=\u00a0\u00bb1491419686036-1-21528134639102&Prime;][vc_column_text]Les temp\u00e9ratures autour du z\u00e9ro appellent un drapeau rouge.<\/p>\n<p>[\/vc_column_text][\/vc_tab][vc_tab title=\u00a0\u00bbR\u00e8gle 3&Prime; tab_id=\u00a0\u00bb1491420857373-2-51528134639102&Prime;][vc_column_text]Le passage d\u2019une phase de l\u2019eau \u00e0 une autre (neige-pluie ou pluie-neige) provoque une interruption des op\u00e9rations.<\/p>\n<p>[\/vc_column_text][\/vc_tab][vc_tab title=\u00a0\u00bbR\u00e8gle 4&Prime; tab_id=\u00a0\u00bb1494337020626-3-81528134639102&Prime;][vc_column_text]Un gel suivant un redoux repr\u00e9sente un risque sup\u00e9rieur \u00e0 la condition inverse.[\/vc_column_text][\/vc_tab][vc_tab title=\u00a0\u00bbR\u00e8gle 5&Prime; tab_id=\u00a0\u00bb1494337023230-4-81528134639102&Prime;][vc_column_text]Les surfaces enneig\u00e9es des patinoires doivent \u00eatre soit enti\u00e8rement d\u00e9blay\u00e9es soit laiss\u00e9es comme telles sans intervention avant le d\u00e9chainement des \u00e9l\u00e9ments (zone rouge &#8211; zone grise). Il ne faut surtout pas les laisser partiellement d\u00e9neig\u00e9es.[\/vc_column_text][\/vc_tab][\/vc_tabs][vc_button button_color=\u00a0\u00bbaccent\u00a0\u00bb size=\u00a0\u00bbbtn-lg\u00a0\u00bb radius=\u00a0\u00bbbtn-circle\u00a0\u00bb icon_position=\u00a0\u00bbright\u00a0\u00bb link=\u00a0\u00bburl:http%3A%2F%2Fwww.guides-sports-loisirs.ca%2Fpatinoires%2Fwp-content%2Fuploads%2Fsites%2F3%2F2017%2F03%2FGIS_Meteo.pdf||target:%20_blank|\u00a0\u00bb icon=\u00a0\u00bbfa fa-file-o\u00a0\u00bb]Version PDF[\/vc_button][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row row_height_percent=\u00a0\u00bb0&Prime; override_padding=\u00a0\u00bbyes\u00a0\u00bb h_padding=\u00a0\u00bb2&Prime; top_padding=\u00a0\u00bb3&Prime; bottom_padding=\u00a0\u00bb2&Prime; overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; shift_y=\u00a0\u00bb0&Prime;][vc_column column_width_use_pixel=\u00a0\u00bbyes\u00a0\u00bb overlay_alpha=\u00a0\u00bb50&Prime; gutter_size=\u00a0\u00bb3&Prime; medium_width=\u00a0\u00bb0&Prime; shift_x=\u00a0\u00bb0&Prime; shift_y=\u00a0\u00bb0&Prime; z_index=\u00a0\u00bb0&Prime; width=\u00a0\u00bb1\/1&Prime; column_width_pixel=\u00a0\u00bb800&Prime;][vc_column_text]Le d\u00e9veloppement technologique [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"parent":286,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-288","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Notions de base - Patinoires ext\u00e9rieures<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.guides-sports-loisirs.ca\/patinoires\/meteo\/notions-base\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Notions de base - Patinoires ext\u00e9rieures\" \/>\n<meta property=\"og:description\" content=\"[vc_row row_height_percent=\u00a0\u00bb0&Prime; 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