{"id":437,"date":"2017-06-09T06:53:00","date_gmt":"2017-06-09T04:53:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellites_track_earth_s_changing_climate\/"},"modified":"2026-10-08T00:28:12","modified_gmt":"2026-10-07T22:28:12","slug":"satellites_track_earth_s_changing_climate","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/satellites_track_earth_s_changing_climate\/","title":{"rendered":"Satelliter \u00f6vervakar jordens klimatf\u00f6r\u00e4ndringar"},"content":{"rendered":"<div class=\"lede\">\n<p>F\u00f6rra \u00e5ret upplevde jorden de h\u00f6gsta temperaturerna sedan m\u00e4tningarna inleddes. Det kan l\u00e5ta som goda nyheter \u2013 vi gillar ju alla n\u00e4r det \u00e4r varmt ute \u2013 men tyv\u00e4rr \u00e4r detta ett tecken p\u00e5 att v\u00e5rt klimat h\u00e5ller p\u00e5 att f\u00f6r\u00e4ndras. Satelliter som kretsar kring jorden hj\u00e4lper oss att f\u00f6lja dessa f\u00f6r\u00e4ndringar och unders\u00f6ka exakt vad som orsakar dem.<\/p>\n<\/div>\n<p>Klimatf\u00f6r\u00e4ndringarna \u00e4r ett stort problem f\u00f6r m\u00e4nniskorna p\u00e5 jorden. De stigande temperaturerna g\u00f6r till exempel att isen i Arktis sm\u00e4lter, vilket leder till att havsniv\u00e5n stiger med cirka 3 mm per \u00e5r. Det kanske inte l\u00e5ter s\u00e5 mycket, men det blir snart en betydande m\u00e4ngd och kan leda till att st\u00e4der och orter vid kusten, liksom m\u00e5nga \u00f6ar, \u00f6versv\u00e4mmas.<\/p>\n<\/p>\n<p>Stigande havsniv\u00e5er \u00e4r en farlig f\u00f6ljd av klimatf\u00f6r\u00e4ndringarna, och d\u00e4rf\u00f6r anv\u00e4nds satelliter f\u00f6r att kartl\u00e4gga vattenniv\u00e5erna \u00f6ver hela v\u00e5r planet. De bidrar ocks\u00e5 till att ta reda p\u00e5 var det extra vatten som orsakar h\u00f6jningen kommer ifr\u00e5n. Sm\u00e4ltande glaci\u00e4rer och havsis \u00e4r en viktig orsak. Dessutom expanderar vattnet i v\u00e5ra hav n\u00e4r det blir varmare, vilket ytterligare bidrar till h\u00f6jningen.<\/p>\n<p>Att observera jorden fr\u00e5n rymden handlar dock inte bara om havsniv\u00e5erna. Satelliter anv\u00e4nds f\u00f6r att \u00f6vervaka v\u00e4xthusgaser, ozonhalter, markfuktighet och mycket mer! Att samla in stora m\u00e4ngder data \u00e4r det f\u00f6rsta steget mot god vetenskap och det b\u00e4sta s\u00e4ttet f\u00f6r oss att fatta v\u00e4lgrundade beslut om klimatf\u00f6r\u00e4ndringarna.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3872\" data-credit=\"ESA\u2013M. Drusch\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Warmer_temperatures_can_cause_sea_ice_to_melt\" 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\/06\/warmer_temperatures_can_cause_sea_ice_to_melt\/17908864-2-eng-GB\/Warmer_temperatures_can_cause_sea_ice_to_melt.jpg\" alt=\"Warmer temperatures can cause sea ice to melt\"><figcaption>H\u00f6gre temperaturer kan leda till att havsisen sm\u00e4lter<\/figcaption><\/figure>\n<p>Tyv\u00e4rr finns det ett problem med att anv\u00e4nda satelliter inom klimatforskningen. Forskare som studerar jorden beh\u00f6ver data som t\u00e4cker en l\u00e5ng tidsperiod \u2013 helst mer \u00e4n 30 \u00e5r! \u2013 f\u00f6r att kunna konstatera att f\u00f6r\u00e4ndringar faktiskt sker. Men satelliter \u00e4r inte konstruerade f\u00f6r att fungera s\u00e5 l\u00e4nge i rymden. Tekniken utvecklas st\u00e4ndigt, vilket inneb\u00e4r att nya satelliter byggs och skjuts upp f\u00f6r att ers\u00e4tta \u00e4ldre, vilket kan leda till vissa luckor i v\u00e5r \u00f6vervakning av jorden.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2102\" data-credit=\"ESA\/P. Carril\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Sentinel_satellites_are_doing_an_excellent_job_of_tracking_changes_on_Earth\" 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\/06\/sentinel_satellites_are_doing_an_excellent_job_of_tracking_changes_on_earth\/17902715-2-eng-GB\/Sentinel_satellites_are_doing_an_excellent_job_of_tracking_changes_on_Earth.jpg\" alt=\"Sentinel satellites are doing an excellent job of tracking changes on Earth\"><figcaption>Sentinel-satelliterna g\u00f6r ett utm\u00e4rkt jobb med att kartl\u00e4gga f\u00f6r\u00e4ndringar p\u00e5 jorden<\/figcaption><\/figure>\n<p>F\u00f6r att bidra till att l\u00f6sa detta problem har ESA inr\u00e4ttat Klimatf\u00f6r\u00e4ndringsinitiativet \u2013 f\u00f6rkortat CCI \u2013 som sammanst\u00e4ller all insamlad information f\u00f6r att ge oss en s\u00e5 fullst\u00e4ndig bild som m\u00f6jligt av hur jorden f\u00f6r\u00e4ndras. Det inneb\u00e4r att vi nu har utm\u00e4rkta m\u00e4tdata \u00f6ver l\u00e5nga tidsperioder. Data fr\u00e5n CCI visar tydliga bevis p\u00e5 att v\u00e5rt klimat f\u00f6r\u00e4ndras.<\/p>\n<p>Vad tycker du att vi borde g\u00f6ra f\u00f6r att ta b\u00e4ttre hand om v\u00e5r planet och minska effekterna av klimatf\u00f6r\u00e4ndringarna?<\/p>\n<p><b>Rolig fakta:<\/b> ESA har tagit fram en digital bok om satelliter och klimatf\u00f6r\u00e4ndringar som du kan ladda ner gratis till iPad och Android-surfplattor!<\/p>","protected":false},"excerpt":{"rendered":"<p>Last year Earth experienced the hottest temperatures since people started keeping records. This might sound like good news \u2013 we all like it when it is warm outside \u2013 but [&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\/06\/esa_satellites_are_keeping_watch_over_our_planet\/18248955-2-eng-GB\/ESA_satellites_are_keeping_watch_over_our_planet.jpg","esa_banner_description":"ESA satellites are keeping watch over our planet","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/ESA_satellites_are_keeping_watch_over_our_planet","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-437","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\/sv\/wp-json\/wp\/v2\/posts\/437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=437"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/437\/revisions"}],"predecessor-version":[{"id":4473,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/437\/revisions\/4473"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=437"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=437"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=437"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=437"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=437"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=437"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=437"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}