{"id":447,"date":"2017-05-17T10:13:00","date_gmt":"2017-05-17T08:13:00","guid":{"rendered":"https:\/\/kids.esa.int\/satnav_technology_could_save_precious_water\/"},"modified":"2026-10-08T00:28:19","modified_gmt":"2026-10-07T22:28:19","slug":"satnav_technology_could_save_precious_water","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/satnav_technology_could_save_precious_water\/","title":{"rendered":"Technologie satelitn\u00ed navigace by mohla u\u0161et\u0159it drahocennou vodu"},"content":{"rendered":"
\n

Skupina zem\u011bd\u011blc\u016f v USA \u010del\u00ed probl\u00e9mu: ji\u017e mnoho let vyu\u017e\u00edvaj\u00ed k p\u011bstov\u00e1n\u00ed plodin na rozs\u00e1hl\u00fdch pol\u00edch velk\u00e9 mno\u017estv\u00ed vody, ale nyn\u00ed jim z\u00e1soby vody doch\u00e1zej\u00ed. Pomoc by mohla p\u0159ij\u00edt v podob\u011b technologie vyvinut\u00e9 v r\u00e1mci projektu ESA, kter\u00e1 by mohla p\u0159isp\u011bt k \u0161et\u0159en\u00ed vodn\u00edch zdroj\u016f a z\u00e1rove\u0148 zajistit, aby plodiny netrp\u011bly nedostatkem vody!<\/p>\n<\/div>\n

Tento pl\u00e1n vymyslel b\u00fdval\u00fd zam\u011bstnanec ESA jm\u00e9nem Javier Marti. Uv\u011bdomil si, \u017ee n\u011bkter\u00e1 pole jsou zavla\u017eov\u00e1na p\u0159\u00edli\u0161, co\u017e je velk\u00e1 pl\u00fdtv\u00e1n\u00ed. Existuje snad zp\u016fsob, jak pomoc\u00ed satelit\u016f zjistit, kter\u00e1 pole vodu skute\u010dn\u011b pot\u0159ebuj\u00ed? Javier si to mysl\u00ed!<\/p>\n

\"Circular
Kruhov\u00e1 pole vid\u011bn\u00e1 z vesm\u00edru<\/figcaption><\/figure>\n

Kl\u00ed\u010dem jsou satelity ob\u00edhaj\u00edc\u00ed kolem Zem\u011b, kter\u00e9 se obvykle pou\u017e\u00edvaj\u00ed k tomu, aby lidem pom\u00e1haly orientovat se pomoc\u00ed naviga\u010dn\u00edch syst\u00e9m\u016f. Anal\u00fdzou odra\u017een\u00fdch sign\u00e1l\u016f z naviga\u010dn\u00edch syst\u00e9m\u016f Javier zjistil, \u017ee je mo\u017en\u00e9 zm\u011b\u0159it, kolik vody se nach\u00e1z\u00ed na povrchu pod nimi: v p\u016fd\u011b, ve sn\u011bhu, v mok\u0159adech a dokonce i hladinu vody v n\u00e1dr\u017e\u00edch. Tyto sign\u00e1ly mohou odhalit, kter\u00e1 pole pot\u0159ebuj\u00ed zavla\u017eovat a kter\u00e1 jsou v po\u0159\u00e1dku tak, jak jsou.<\/p>\n

\"Irrigation
Takov\u00e9 zavla\u017eovac\u00ed syst\u00e9my rozst\u0159ikuj\u00ed vodu po pol\u00edch<\/figcaption><\/figure>\n

V pr\u016fb\u011bhu n\u00e1sleduj\u00edc\u00edch m\u011bs\u00edc\u016f bude n\u011bkolik zem\u011bd\u011blc\u016f vyu\u017e\u00edvat tato data k \u0159\u00edzen\u00ed mno\u017estv\u00ed vody, kterou zavla\u017euj\u00ed sv\u00e1 pole. O\u010dek\u00e1v\u00e1 se, \u017ee d\u00edky t\u00e9to efektivn\u011bj\u0161\u00ed metod\u011b u\u0161et\u0159\u00ed 30% vody, kterou obvykle spot\u0159ebov\u00e1vaj\u00ed. Jako bonus se mo\u017en\u00e1 \u00faroda bude da\u0159it je\u0161t\u011b l\u00e9pe, proto\u017ee plodiny budou dost\u00e1vat p\u0159esn\u011b takov\u00e9 mno\u017estv\u00ed vody, jak\u00e9 pot\u0159ebuj\u00ed!<\/p>\n

Pokud se Javier\u016fv n\u00e1pad osv\u011bd\u010d\u00ed, dal by se vyu\u017e\u00edt po cel\u00e9m sv\u011bt\u011b k \u00faspo\u0159e vody \u2013 a to v\u0161e d\u00edky satelit\u016fm, kter\u00e9 ji\u017e ob\u00edhaj\u00ed kolem Zem\u011b.<\/p>\n

Zaj\u00edmavost:<\/b> Anal\u00fdza odra\u017een\u00fdch sign\u00e1l\u016f z naviga\u010dn\u00edch syst\u00e9m\u016f p\u0159edstavuje pr\u016flomovou technologii a v p\u0159\u00ed\u0161t\u00edch n\u011bkolika letech se mo\u017en\u00e1 do\u010dk\u00e1me mnoha dal\u0161\u00edch zp\u016fsob\u016f jej\u00edho vyu\u017eit\u00ed!<\/p>","protected":false},"excerpt":{"rendered":"

A group of farmers in the USA have a problem: for many years they have been using large amounts of water to grow crops in huge fields, but now their […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/05\/farmers_need_a_lot_of_water_for_their_crops\/17880698-2-eng-GB\/Farmers_need_a_lot_of_water_for_their_crops.jpg","esa_banner_description":"Farmers need a lot of water for their crops","esa_banner_credit":"Navtronics BVBA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Farmers_need_a_lot_of_water_for_their_crops","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-447","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=447"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/447\/revisions"}],"predecessor-version":[{"id":4483,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/447\/revisions\/4483"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=447"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=447"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=447"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=447"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=447"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=447"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=447"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}