{"id":580526,"date":"2023-04-07T19:01:31","date_gmt":"2023-04-07T17:01:31","guid":{"rendered":"https:\/\/theplayoffs.news\/fr\/?p=580526"},"modified":"2023-04-07T19:01:32","modified_gmt":"2023-04-07T17:01:32","slug":"changement-climatique-influence-home-runs","status":"publish","type":"post","link":"https:\/\/theplayoffs.news\/fr\/actualite-mlb\/changement-climatique-influence-home-runs\/","title":{"rendered":"Le changement climatique influence les home runs, selon une nouvelle \u00e9tude"},"content":{"rendered":"<h2>Le changement climatique affecte la Major League Baseball (MLB) en augmentant le nombre de home run chaque ann&eacute;e, selon une nouvelle &eacute;tude men&eacute;e par des scientifiques du Dartmouth College.<\/h2><p>L&rsquo;&eacute;tude, publi&eacute;e vendredi dans le Bulletin de l&rsquo;American Meteorological Society, a r&eacute;v&eacute;l&eacute; qu&rsquo;un air plus chaud et plus fin, qui permet aux balles de voyager plus loin, a contribu&eacute; &agrave; une augmentation des circuits depuis 2010.<\/p><p>Les chercheurs ont analys&eacute; les donn&eacute;es de plus de 100 000 matchs de la MLB et de plus de 200 000 balles mises en jeu ces derni&egrave;res ann&eacute;es, ainsi que les conditions m&eacute;t&eacute;orologiques, les facteurs li&eacute;s au stade et d&rsquo;autres variables.<\/p><blockquote><p>&laquo;&nbsp;Le r&eacute;chauffement climatique donne du jus aux circuits dans la Ligue majeure de baseball&nbsp;&raquo;, a d&eacute;clar&eacute; le co-auteur de l&rsquo;&eacute;tude, Justin Mankin, <a href=\"https:\/\/journals.ametsoc.org\/view\/journals\/bams\/aop\/BAMS-D-22-0235.1\/BAMS-D-22-0235.1.xml\" class=\"trk-cta-link\" data-cta-trk='{\"ctaType\":\"Link\",\"ctaSubType\":\"main\"}'>climatologue &agrave; Dartmouth<\/a>.<\/p><\/blockquote><p>La physique sous-jacente est relativement simple : &agrave; mesure que l&rsquo;air se r&eacute;chauffe, les mol&eacute;cules se d&eacute;placent plus rapidement et s&rsquo;&eacute;loignent, ce qui donne un air moins dense. Les balles de baseball frapp&eacute;es voyagent plus loin dans un air plus fin en raison d&rsquo;une r&eacute;sistance r&eacute;duite. Alan Nathan, un physicien de l&rsquo;Universit&eacute; de l&rsquo;Illinois non impliqu&eacute; dans l&rsquo;&eacute;tude de Dartmouth, a confirm&eacute; les r&eacute;sultats par ses propres calculs bas&eacute;s sur la balistique et la densit&eacute; de l&rsquo;air en fonction de la temp&eacute;rature.<\/p><p>Nathan et l&rsquo;&eacute;quipe de Dartmouth ont d&eacute;couvert qu&rsquo;&agrave; chaque degr&eacute; de r&eacute;chauffement de l&rsquo;air, il y a une augmentation de 1 % de la probabilit&eacute; d&rsquo;un home run. Cependant, la moyenne annuelle totale des home runs aid&eacute;s par le r&eacute;chauffement ne repr&eacute;sente que 1 % de tous les home runs frapp&eacute;s, selon les chercheurs de Dartmouth.<\/p><p>Des facteurs non climatiques contribuent &eacute;galement &agrave; l&rsquo;augmentation des circuits, tels que les modifications de la taille des balles et des coutures, les ajustements de la MLB pour amortir le balle avant la saison 2021, l&rsquo;accent mis par les frappeurs sur l&rsquo;angle de lancement, des frappeurs plus forts et des lancers plus rapides.<\/p><p>Les joueurs de baseball v&eacute;t&eacute;rans et les dirigeants sont d&rsquo;accord avec les r&eacute;sultats de la recherche.<\/p><blockquote><p>&laquo;&nbsp;Quand il fait plus chaud, le ballon se d&eacute;place plus, et ils ont des preuves scientifiques pour &eacute;tayer cela&nbsp;&raquo;, a d&eacute;clar&eacute; Dave Dombrowski, pr&eacute;sident des op&eacute;rations de baseball des Phillies de Philadelphie.<\/p><\/blockquote><p>L&rsquo;effet climatique varie selon le terrain, le Wrigley Field de Chicago &eacute;tant le stade le plus favorable au r&eacute;chauffement. Le Tropicana Field de Tampa Bay, le seul stade en forme de d&ocirc;me &agrave; temps plein dans les majors, n&rsquo;a montr&eacute; aucun impact important de la chaleur dans l&rsquo;&eacute;tude.<\/p><p>Le releveur des Rockies du Colorado, <a href=\"https:\/\/theplayoffs.news\/fr\/joueur\/brent-suter-mlb-72046\/\" class=\"trk-cta-link\" data-cta-trk='{\"ctaType\":\"Link\",\"ctaSubType\":\"main\"}'><strong>Brent Suter<\/strong><\/a>, pense que les r&eacute;sultats de l&rsquo;&eacute;tude, qui mentionnent plus de 500 circuits depuis 2010, correspondent &agrave; ses exp&eacute;riences sur le terrain. Il a &eacute;galement not&eacute; que la chaleur peut &ecirc;tre difficile pour les joueurs et les fans.<\/p><p>La temp&eacute;rature moyenne aux &Eacute;tats-Unis en juin, juillet et ao&ucirc;t a augment&eacute; de plus de 2 degr&eacute;s au cours des 40 derni&egrave;res ann&eacute;es, selon la National Oceanic and Atmospheric Administration. L&rsquo;&eacute;tude met en &eacute;vidence l&rsquo;impact consid&eacute;rable du changement climatique, qui s&rsquo;&eacute;tend au-del&agrave; des pr&eacute;occupations environnementales au domaine des sports et des loisirs.<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":13,"featured_media":580527,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"kia_subtitle":"","_mux_skip_reasons":[],"proofreadBy":0,"footnotes":""},"categories":[188,9],"tags":[5792,5793,29],"sport":[],"saison":[],"class_list":["post-580526","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite-mlb","category-mlb","tag-changement-climatique","tag-home-runs","tag-mlb"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le changement climatique influence les home runs, selon une nouvelle &eacute;tude - 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