{"id":3352,"date":"2026-02-19T11:05:06","date_gmt":"2026-02-19T10:05:06","guid":{"rendered":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/?post_type=glossary&#038;p=3352"},"modified":"2026-02-19T11:05:06","modified_gmt":"2026-02-19T10:05:06","slug":"asar","status":"publish","type":"glossary","link":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/asar\/","title":{"rendered":"ASAR"},"content":{"rendered":"<p>Advanced <a class=\"glossaryLink\" title=\"Glossary: Synthetic Aperture Radar\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Synthetic Aperture Radar&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;SAR. A high-resolution ground-mapping technique that effectively synthesizes a large receiving antenna by processing the phase of the reflected radar return.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/synthetic-aperture-radar\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Synthetic Aperture Radar<\/a> &#x2013; a radar <a class=\"glossaryLink\" title=\"Glossary: sensor\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;sensor&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Device producing an output in response to incident radiation. Sensors aboard satellites obtain information about features and objects on Earth by detecting radiation reflected or emitted in different bands of the electromagnetic spectrum.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/sensor\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">sensor<\/a> on the <a class=\"glossaryLink\" title=\"Glossary: satellite\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;satellite&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A free-flying object orbiting the Earth, another planet, or the sun.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/satellite\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">satellite<\/a> <a class=\"glossaryLink\" title=\"Glossary: Envisat\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Envisat&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Environmental Satellite mission, 2002-2012; large platform monitoring the environmental changes on earth and in the atmosphere, scientific mission to study Earth observation applications.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/envisat\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">ENVISAT<\/a> operating in <a class=\"glossaryLink\" title=\"Glossary: C-Band\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;C-Band&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;part of the electromagnetic microwave spectrum between 500 MHz and 1000 MHz.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/c-band\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">C-band<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Advanced Synthetic Aperture Radar &#x2013; a radar sensor on the satellite ENVISAT operating in C-<a class=\"glossaryLink\" title=\"Glossary: band\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;band&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A region of the electromagnetic spectrum to which a remote sensor responds; a multispectral sensor makes measurements in a number of spectral bands.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/de\/glossary\/band\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">band<\/a>.<\/p>\n","protected":false},"author":2,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-3352","glossary","type-glossary","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"de","enabled_languages":["en","es","de","fr","it"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - 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