{"id":3833,"date":"2026-02-19T13:10:51","date_gmt":"2026-02-19T12:10:51","guid":{"rendered":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/?post_type=glossary&#038;p=3833"},"modified":"2026-02-19T13:10:51","modified_gmt":"2026-02-19T12:10:51","slug":"srtm","status":"publish","type":"glossary","link":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/it\/glossary\/srtm\/","title":{"rendered":"SRTM"},"content":{"rendered":"<p>Shuttle Radar Topography Mission. A Space Shuttle mission that used <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\/it\/glossary\/c-band\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">C-band<\/a> and <a class=\"glossaryLink\" title=\"Glossary: X-band\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;X-band&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Radar frequency band between 12.5 and 8 GHz (wavelength 2,4-3,75 cm).&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/it\/glossary\/x-band\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">X-band<\/a> interferometric synthetic aperture radars (IFSARs) to acquire topographic data over 80% of Earth&#x2019;s land mass (between 60&#xB0;N and 56&#xB0;S) in February 2000. Digital Elevation Models from this data are freely available at a <a class=\"glossaryLink\" title=\"Glossary: ground resolution\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;ground resolution&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Describes the length of the side of a single square pixel in an image on the Earth surface, e.g. 30 m\/pixel. The smaller this value is, the more precise and detailed the image is.&lt;\/div&gt;\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/it\/glossary\/ground-resolution\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">ground resolution<\/a> of 30 m\/<a class=\"glossaryLink\"  title=\"Glossary: pixel\"  aria-describedby=\"tt\"  data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;pixel&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;Picture element. Ground area corresponding to a single element of a digital image data set.&lt;\/div&gt;\"  href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/it\/glossary\/pixel\/\"  target=\"_blank\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>pixel<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Shuttle Radar Topography Mission. A Space Shuttle mission that used 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\/it\/glossary\/band\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">band<\/a> and X-band interferometric synthetic aperture radars (IFSARs) to acquire topographic data over 80% of Earth&#x2019;s land mass (between 60&#xB0;N and 56&#xB0;S) in February 2000. Digital Elevation Models from this data are freely available at a ground <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\/it\/glossary\/resolution\/\" target=\"_blank\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">resolution<\/a> of 30 m\/pixel.<\/p>\n","protected":false},"author":2,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-3833","glossary","type-glossary","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"it","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>SRTM - 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