{"id":3367,"date":"2026-02-19T11:07:15","date_gmt":"2026-02-19T10:07:15","guid":{"rendered":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/?post_type=glossary&#038;p=3367"},"modified":"2026-02-19T11:07:33","modified_gmt":"2026-02-19T10:07:33","slug":"avhrr","status":"publish","type":"glossary","link":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/glossary\/avhrr\/","title":{"rendered":"AVHRR"},"content":{"rendered":"<p>Advanced Very High <a class=\"glossaryLink\" title=\"Glossary: resolution\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;resolution&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Level of detail an image holds. It is typically measured by the size of pixels (area on the Earth surface covered by one pixel) in the image, often expressed as width &#xD7; height, and indicates how much detail can be captured or displayed. Higher resolution means more detail and clarity in the image.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/glossary\/resolution\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Resolution<\/a> Radiometer &#x2013; A five-channel scanning instrument that quantitatively measures <a class=\"glossaryLink\" title=\"Glossary: electromagnetic radiation\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;electromagnetic radiation&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Energy propagated as time-varying electric and magnetic fields at the speed of light. Light and radar are examples of electromagnetic radiation differing only in their wavelengths (or frequency).&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/glossary\/electromagnetic-radiation\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">electromagnetic radiation<\/a> on <a class=\"glossaryLink\"  title=\"Glossary: NOAA\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;NOAA&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;National Oceanic and Atmospheric Administration. NOAA was established in 1970 within the U.S. Department of Commerce. It is focused on the conditions of the oceans and the atmosphere. NOAA has two main components: the National Weather Service (NWS), and the Na&not;tional Environmental Satellite, Data, and Information Service (NESDIS).&lt;\/div&gt;\"  href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/glossary\/noaa\/\"  target=\"_blank\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>NOAA<\/a> environmental satellites. Determines cloud cover and surface temperature. Visible and infrared detectors observe vegetation, clouds, lakes, shorelines, snow, and ice.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Advanced Very High Resolution Radiometer &#x2013; A five-channel scanning instrument that quantitatively measures electromagnetic <a class=\"glossaryLink\" title=\"Glossary: radiation\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;radiation&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Energy transfer in the form of electromagnetic waves or particles that release energy when absorbed by an object.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/glossary\/radiation\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">radiation<\/a> on NOAA environmental satellites. Determines cloud cover and surface temperature. Visible and infrared detectors observe vegetation, clouds, lakes, shorelines, snow, and ice.<\/p>\n","protected":false},"author":2,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-3367","glossary","type-glossary","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"en","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 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AVHRR - ESA Schoolatlas<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/glossary\/avhrr\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AVHRR - 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