{"id":5652,"date":"2011-01-07T19:43:10","date_gmt":"2011-01-07T17:43:10","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=5652"},"modified":"2015-04-15T19:44:47","modified_gmt":"2015-04-15T17:44:47","slug":"exploit-climatique-on-a-fait-pleuvoir-dans-le-desert","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/exploit-climatique-on-a-fait-pleuvoir-dans-le-desert\/","title":{"rendered":"Exploit climatique : on a fait pleuvoir dans le d\u00e9sert"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p align=\"justify\"><span style=\"font-size: small;\">Un proc\u00e9d\u00e9 capable de d\u00e9clencher des pluies en plein d\u00e9sert aurait \u00e9t\u00e9 exp\u00e9riment\u00e9 pr\u00e8s d&rsquo;Abou Dabi. R\u00e9volution.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">La nouvelle, stup\u00e9fiante, vient d&rsquo;\u00eatre publi\u00e9e par des journaux anglo-saxons : une entreprise suisse aurait r\u00e9ussi, dans le plus grand secret, \u00e0 mettre au point un proc\u00e9d\u00e9 pour d\u00e9clencher la pluie en plein d\u00e9sert. Le cheikh Khalifa ben Zayed Al Nahyane, pr\u00e9sident des \u00c9mirats arabes unis (EAU), aurait financ\u00e9 une installation pilote qui aurait d\u00e9clench\u00e9 cinquante-deux orages de pluie dans la r\u00e9gion d&rsquo;Al Ain, pr\u00e8s d&rsquo;Abou Dabi, l&rsquo;\u00e9t\u00e9 dernier.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Si cette nouvelle devait \u00eatre confirm\u00e9e, ce serait une v\u00e9ritable r\u00e9volution susceptible de bouleverser la vie de nombreux pays d\u00e9sertiques. Ma bonne dame, s&rsquo;il se met \u00e0 pleuvoir dans les d\u00e9serts, o\u00f9 allons-nous ?<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Ciel bleu<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">En elle-m\u00eame, une pluie artificielle n&rsquo;a rien de nouveau. Il existe d\u00e9j\u00e0 plusieurs proc\u00e9d\u00e9s pour d\u00e9clencher la pluie lorsque les nuages sont d\u00e9j\u00e0 l\u00e0, mais c&rsquo;est la premi\u00e8re fois qu&rsquo;une technologie parviendrait \u00e0 tirer des larmes d&rsquo;un ciel bleu azur. Voyons ce miracle d&rsquo;un peu plus pr\u00e8s. La firme suisse Metro Systems International, cr\u00e9\u00e9e par Helmut Fluhrer, a install\u00e9 dans le d\u00e9sert une centaine d&rsquo;ionisateurs g\u00e9ants r\u00e9partis sur cinq sites. Ils ressemblent \u00e0 d&rsquo;immenses palmiers dont les feuilles m\u00e9talliques \u00e9mettent dans l&rsquo;atmosph\u00e8re des milliards de milliards de particules ionis\u00e9es (en g\u00e9n\u00e9ral des \u00e9lectrons). Ils ne fonctionnent pas en permanence, seulement quand l&rsquo;humidit\u00e9 dans la haute atmosph\u00e8re, o\u00f9 se forment normalement les nuages, d\u00e9passe 30 %.<\/span><\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p align=\"justify\"><span style=\"font-size: small;\">Une fois dans l&rsquo;air, les particules ionis\u00e9es agglom\u00e8rent autour d&rsquo;elles de microscopiques grains de poussi\u00e8re, avant de s&rsquo;envoler vers le ciel, entra\u00een\u00e9es par la convection naturelle. Une fois l&rsquo;altitude de formation des nuages atteinte, ces poussi\u00e8res charg\u00e9es n\u00e9gativement font leur boulot habituel : elles condensent sur elles l&rsquo;humidit\u00e9 atmosph\u00e9rique jusqu&rsquo;\u00e0 former de grosses gouttes qui n&rsquo;ont alors plus aucune autre id\u00e9e en t\u00eate que de se pr\u00e9cipiter sur le sol. Alleluia, il pleut en plein d\u00e9sert !<\/span><\/p>\n<p align=\"justify\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/pluie-desert.jpg\" alt=\"\" \/><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Un co\u00fbt faible<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Sous le contr\u00f4le du Max Planck Institute for Meteorology, ce proc\u00e9d\u00e9 exp\u00e9rimental aurait prouv\u00e9 son efficacit\u00e9 dans cette r\u00e9gion d&rsquo;Al Ain o\u00f9 les m\u00e9t\u00e9orologues n&rsquo;attendaient aucune pluie. Selon son cr\u00e9ateur, la construction d&rsquo;un syst\u00e8me ionisant ne d\u00e9passe pas 7 millions de livres contre plus de 850 millions pour une usine de dessalement d&rsquo;eau de mer.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Avant de s&#8217;emballer, il faut contr\u00f4ler la nature exacte des pluies. S&rsquo;agit-il r\u00e9ellement de pluies d&rsquo;orage ou d&rsquo;une fine bruine qui s&rsquo;\u00e9vapore imm\u00e9diatement ? Il faudra \u00e9galement v\u00e9rifier si le syst\u00e8me fonctionne partout. N&rsquo;oublions pas qu&rsquo;Abou Dabi est pr\u00e8s de l&rsquo;oc\u00e9an, qui fournit en permanence de l&rsquo;humidit\u00e9. Il n&rsquo;est pas dit qu&rsquo;au coeur du Sahara, les ionisateurs trouvent suffisamment d&rsquo;humidit\u00e9 dans l&rsquo;atmosph\u00e8re. Par ailleurs, le climat est un m\u00e9canisme tr\u00e8s fragile. Si on se met \u00e0 \u00e9ponger \u00e0 tour de bras la vapeur atmosph\u00e9rique dans un coin du ciel, est-ce que cela n&rsquo;aura pas des retomb\u00e9es n\u00e9gatives ailleurs ? C&rsquo;est encore \u00e0 v\u00e9rifier. On n&rsquo;est pas n\u00e9 de la derni\u00e8re pluie&#8230;<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">source : <a href=\"http:\/\/www.lepoint.fr\/\">http:\/\/www.lepoint.fr\/<\/a><\/span><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"5652\">(312)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Un proc\u00e9d\u00e9 capable de d\u00e9clencher des pluies en plein d\u00e9sert aurait \u00e9t\u00e9 exp\u00e9riment\u00e9 pr\u00e8s d&rsquo;Abou Dabi. R\u00e9volution. La nouvelle, stup\u00e9fiante,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":5653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Exploit climatique : on a fait pleuvoir dans le d\u00e9sert","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[26],"tags":[332,4022,4020,437,4021,62,636,863],"class_list":["post-5652","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-desert","tag-eau-de-mer","tag-faire","tag-nature","tag-pleuvoir","tag-pluie","tag-sahara","tag-systeme","wpcat-26-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/pluie-desert.jpg?fit=200%2C105&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-1ta","jetpack-related-posts":[{"id":4292,"url":"https:\/\/www.laterredufutur.com\/accueil\/masdar-city\/","url_meta":{"origin":5652,"position":0},"title":"Masdar City","author":"Admin","date":"6 f\u00e9vrier 2008","format":false,"excerpt":"Imaginez une ville de 50000 habitants, sans voiture, sans dioxyde de carbone, sans d\u00e9chet, bref, une ville \u00e9cologique du futur. Maintenant, imaginez cette ville dans le d\u00e9sert du Golfe, o\u00f9 les temp\u00e9ratures peuvent atteindre les 50\u00b0C en \u00e9t\u00e9 et o\u00f9 l\u2019air conditionn\u00e9 est branch\u00e9 en permanence. Cette ville s\u2019appelle Masdar\u2026","rel":"","context":"Dans &quot;Ecologie&quot;","block_context":{"text":"Ecologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/ecologie\/"},"img":{"alt_text":"","src":"http:\/\/www.dailymotion.com\/thumbnail\/video\/x2zeod_futur-abu-dhabi-masdar-city_tech","width":350,"height":200},"classes":[]},{"id":16974,"url":"https:\/\/www.laterredufutur.com\/accueil\/les-eoliennes-et-les-centrales-photovoltaiques-pourraient-faire-pleuvoir-dans-le-desert\/","url_meta":{"origin":5652,"position":1},"title":"Les \u00e9oliennes et les centrales photovolta\u00efques pourraient faire pleuvoir dans le d\u00e9sert","author":"Admin","date":"17 septembre 2018","format":false,"excerpt":"L'installation de millions d'\u00e9oliennes et de panneaux solaires sur un cinqui\u00e8me du Sahara conduirait \u00e0 doubler les quantit\u00e9s de pr\u00e9cipitations dans la r\u00e9gion, estime une \u00e9tude th\u00e9orique parue dans la revue Science. L'exercice est th\u00e9orique mais le r\u00e9sultat marquant: des chercheurs ont calcul\u00e9 que l'installation d'immenses centrales d'\u00e9nergies \u00e9olienne et\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/09\/eolienne_senegal.jpg?fit=642%2C336&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/09\/eolienne_senegal.jpg?fit=642%2C336&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/09\/eolienne_senegal.jpg?fit=642%2C336&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":7855,"url":"https:\/\/www.laterredufutur.com\/accueil\/emirats-arabes-unis-des-avions-ensemencent-les-nuages-pour-provoquer-la-pluie\/","url_meta":{"origin":5652,"position":2},"title":"Emirats arabes unis: Des avions ensemencent les nuages pour provoquer la pluie","author":"Admin","date":"25 ao\u00fbt 2015","format":false,"excerpt":"Tous les moyens sont bons pour faire tomber la pluie. 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Des fus\u00e9es qui augmentent la condensation Sous le soleil br\u00fblant\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/avion_nuages_pluie.jpg?fit=648%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/avion_nuages_pluie.jpg?fit=648%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/avion_nuages_pluie.jpg?fit=648%2C415&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":25783,"url":"https:\/\/www.laterredufutur.com\/accueil\/chaos-a-dubai-suite-a-des-pluies-diluviennes-geo-ingenierie-qui-tourne-mal\/","url_meta":{"origin":5652,"position":3},"title":"Chaos \u00e0 Duba\u00ef suite \u00e0 des pluies diluviennes&#8230; g\u00e9o-ing\u00e9nierie qui tourne mal ?","author":"Admin","date":"21 avril 2024","format":false,"excerpt":"Des pluies torrentielles se sont abattues sur les \u00c9mirats arabes unis mardi, entra\u00eenant d\u2019importantes inondations \u00e0 Duba\u00ef, dont les infrastructures peinent \u00e0 faire face \u00e0 la situation. Plus de 1 200 vols ont \u00e9t\u00e9 annul\u00e9s et de nombreux passagers sont bloqu\u00e9s sur place, alors que les stocks de nourriture commencent\u2026","rel":"","context":"Dans &quot;Ev\u00e8nement Brutal&quot;","block_context":{"text":"Ev\u00e8nement Brutal","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/evenement-brutal\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/inondations-dubai.jpg?fit=1200%2C599&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/inondations-dubai.jpg?fit=1200%2C599&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/inondations-dubai.jpg?fit=1200%2C599&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/inondations-dubai.jpg?fit=1200%2C599&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/04\/inondations-dubai.jpg?fit=1200%2C599&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":27585,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-rare-couche-de-neige-recouvre-lun-des-endroits-les-plus-arides-de-la-planete-et-provoque-larret-dun-radiotelescope-geant\/","url_meta":{"origin":5652,"position":4},"title":"Une rare couche de neige recouvre l&rsquo;un des endroits les plus arides de la plan\u00e8te et provoque l&rsquo;arr\u00eat d&rsquo;un radiot\u00e9lescope g\u00e9ant","author":"Admin","date":"4 janvier 2026","format":false,"excerpt":"Une photo satellite prise en juillet 2025 montre des rayures enneig\u00e9es complexes qui sillonnent le d\u00e9sert d'Atacama au Chili. Les conditions m\u00e9t\u00e9orologiques glaciales ont temporairement contraint l'observatoire ALMA (Atacama Large Millimeter\/submillimeter Array) \u00e0 fonctionner en \u00ab mode de survie \u00bb. Cette photo satellite saisissante a immortalis\u00e9 un spectacle rare en\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/12\/desert-atacama-neige.webp?fit=650%2C366&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/12\/desert-atacama-neige.webp?fit=650%2C366&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/12\/desert-atacama-neige.webp?fit=650%2C366&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":27730,"url":"https:\/\/www.laterredufutur.com\/accueil\/comment-des-deserts-peuvent-ils-se-former-a-proximite-des-oceans\/","url_meta":{"origin":5652,"position":5},"title":"Comment des d\u00e9serts peuvent-ils se former \u00e0 proximit\u00e9 des oc\u00e9ans ?","author":"Admin","date":"25 f\u00e9vrier 2026","format":false,"excerpt":"Les d\u00e9serts sont r\u00e9put\u00e9s pour \u00eatre secs, alors pourquoi tant d'entre eux bordent-ils les oc\u00e9ans ? Lorsque vous imaginez un d\u00e9sert, vous pensez probablement \u00e0 un vaste paysage d\u00e9sertique, loin de toute source d'eau. Mais \u00e9tonnamment, certains des endroits les plus arides de la plan\u00e8te se trouvent juste \u00e0 c\u00f4t\u00e9\u2026","rel":"","context":"Dans &quot;Divers&quot;","block_context":{"text":"Divers","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/divers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/5652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=5652"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/5652\/revisions"}],"predecessor-version":[{"id":5654,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/5652\/revisions\/5654"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/5653"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=5652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=5652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=5652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}