{"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\/de\/satnav_technology_could_save_precious_water\/","title":{"rendered":"Navigationstechnologie k\u00f6nnte wertvolles Wasser sparen"},"content":{"rendered":"<div class=\"lede\">\n<p>Einige Landwirte in den USA haben ein Problem: Sie ben\u00f6tigen jedes Jahr Unmengen von Wasser f\u00fcr die Bew\u00e4sserung ihrer Felder, doch dieses Wasser wird allm\u00e4hlich knapp. Helfen k\u00f6nnte hier eine abgewandelte ESA-Technologie! Sie k\u00f6nnte zum sparsamen Umgang mit dem vorhandenen Wasservorkommen beitragen, ohne dass die Pflanzen verdursten m\u00fcssen.<\/p>\n<\/div>\n<p>Auf die Idee kam ein ehemaliger ESA-Mitarbeiter namens Javier Marti. Er erkannte, dass manche Felder zu stark bew\u00e4ssert werden \u2013 pure Verschwendung. K\u00f6nnte man nicht mit Satelliten herausfinden, welche Felder wirklich Wasser ben\u00f6tigen? Javier ist davon \u00fcberzeugt!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1180\" data-credit=\"Google Earth\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Circular_fields_as_seen_from_space\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/05\/circular_fields_as_seen_from_space\/17903122-2-eng-GB\/Circular_fields_as_seen_from_space.jpg\" alt=\"Circular fields as seen from space\"><figcaption>Kreisf\u00f6rmige Felder aus der Perspektive des Weltraums<\/figcaption><\/figure>\n<p>Dazu braucht es Satelliten in der Erdumlaufbahn, die normalerweise f\u00fcr Navigationssysteme in Fahrzeugen dienen. Bei der Auswertung der von den Navigationssatelliten reflektierten Signale fand Javier heraus, dass sich die am Boden befindliche Wassermenge messen l\u00e4sst: in der Erde, in Sumpfgebieten, ja sogar die Pegel in Staubecken. Anhand dieser Signale lie\u00dfe sich feststellen, welche Felder bew\u00e4ssert werden m\u00fcssen und welche nicht.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Divirod\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/05\/Irrigation_systems_like_this_sprinkle_water_over_fields\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/05\/irrigation_systems_like_this_sprinkle_water_over_fields\/18248067-2-eng-GB\/Irrigation_systems_like_this_sprinkle_water_over_fields.jpg\" alt=\"Irrigation systems like this sprinkle water over fields\"><figcaption>Bew\u00e4sserungssysteme wie dieses verspr\u00fchen Wasser \u00fcber die Felder<\/figcaption><\/figure>\n<p>In den kommenden Monaten werden einige Landwirte diese Daten bei der Bew\u00e4sserung ihrer Felder nutzen. Mit dieser effizienteren Methode hoffen sie, etwa 30 % Wasser einsparen zu k\u00f6nnen. M\u00f6glicherweise wachsen die Pflanzen dadurch sogar besser, weil sie die optimale Wassermenge erhalten.<\/p>\n<p>Sollte Javiers Idee funktionieren, k\u00f6nnte sie weltweit eingesetzt werden, um Wasser zu sparen. Zu verdanken w\u00e4re das den Satelliten, die in unserer Erdumlaufbahn kreisen.<\/p>\n<p><b>Interessante Tatsache:<\/b> Die Analyse reflektierter Navigationssignale ist eine bahnbrechende Technologie, und in den n\u00e4chsten Jahren werden wir vielleicht noch viele weitere Anwendungsm\u00f6glichkeiten daf\u00fcr entdecken!<\/p>","protected":false},"excerpt":{"rendered":"<p>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 [&hellip;]<\/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\/de\/wp-json\/wp\/v2\/posts\/447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/comments?post=447"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/447\/revisions"}],"predecessor-version":[{"id":4483,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/447\/revisions\/4483"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/media?parent=447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/categories?post=447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/tags?post=447"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/panel?post=447"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/language?post=447"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/age?post=447"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/duration?post=447"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/resource_type?post=447"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/audience?post=447"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/wf_post_folders?post=447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}