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  <title>Instrument Calibration</title>
  <link rel="self" href="https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236" />
  <subtitle>Instrument Calibration</subtitle>
  <id>https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236</id>
  <updated>2026-07-28T00:24:22Z</updated>
  <dc:date>2026-07-28T00:24:22Z</dc:date>
  <entry>
    <title>Instrument Calibration 1.1</title>
    <link rel="alternate" href="https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Instrument Calibration?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.1" />
    <author>
      <name>Emma Woolliams</name>
    </author>
    <id>https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Instrument Calibration?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.1</id>
    <updated>2021-10-08T20:02:26Z</updated>
    <published>2021-10-04T18:27:43Z</published>
    <summary type="html">&lt;p&gt;&lt;strong&gt;Definition&lt;/strong&gt; &lt;/p&gt;&lt;p&gt;&lt;strong&gt;&lt;!----&gt;&lt;/strong&gt; &lt;/p&gt;&lt;p&gt;&lt;strong&gt;&lt;!----&gt;&lt;/strong&gt;The instrument calibration function is &lt;span class="diff-html-removed" id="removed-diff-0" previous="first-diff" changeId="removed-diff-0" next="added-diff-0"&gt;thedetermination &lt;/span&gt;&lt;span class="diff-html-added" id="added-diff-0" previous="removed-diff-0" changeId="added-diff-0" next="removed-diff-1"&gt;the determination &lt;/span&gt;of parameters &lt;span class="diff-html-removed" id="removed-diff-1" previous="added-diff-0" changeId="removed-diff-1" next="added-diff-1"&gt;describinginstrument &lt;/span&gt;&lt;span class="diff-html-added" id="added-diff-1" previous="removed-diff-1" changeId="added-diff-1" next="removed-diff-2"&gt;describing instrument &lt;/span&gt;characteristics. They are to be used by the instruments and ground processing &lt;span class="diff-html-removed" id="removed-diff-2" previous="added-diff-1" changeId="removed-diff-2" next="added-diff-2"&gt;togenerate &lt;/span&gt;&lt;span class="diff-html-added" id="added-diff-2" previous="removed-diff-2" changeId="added-diff-2" next="removed-diff-3"&gt;to generate &lt;/span&gt;calibrated and comparable &lt;span class="diff-html-removed" id="removed-diff-3" previous="added-diff-2" changeId="removed-diff-3" next="added-diff-3"&gt;physicalvalues&lt;/span&gt;&lt;span class="diff-html-added" id="added-diff-3" previous="removed-diff-3" changeId="added-diff-3" next="removed-diff-4"&gt;physical values&lt;/span&gt;. These parameters vary for &lt;span class="diff-html-removed" id="removed-diff-4" previous="added-diff-3" changeId="removed-diff-4" next="added-diff-4"&gt;differentinstruments &lt;/span&gt;&lt;span class="diff-html-added" id="added-diff-4" previous="removed-diff-4" changeId="added-diff-4" next="added-diff-5"&gt;different instruments &lt;/span&gt;and modes. And they may vary overtime in the long run (degradation). &lt;/p&gt;&lt;p&gt;&lt;strong&gt;Source&lt;/strong&gt; &lt;/p&gt;&lt;p&gt;&lt;a href="https://ceos.org/document_management/Working_Groups/WGISS/Interest_Groups/Data_Stewardship/White_Papers/EO-DataStewardshipGlossary.pdf"&gt; CEOS/WGISS/DSIG/GLOS&lt;/a&gt; &lt;/p&gt;&lt;p&gt;&lt;a href=""&gt;&lt;span class="diff-html-added" id="added-diff-5" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt;ESA PDGS Glossary, PGSI-GSEG-EOPG-LI-13-0033 (MM-PDGS Glossary Issue&lt;/span&gt;&lt;/a&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt; &lt;/span&gt;&lt;a href=""&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt;2.0_forReview.docx)&lt;/span&gt;&lt;/a&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt; &lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt;Category&lt;/span&gt;&lt;/strong&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt; &lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;a href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fcalvalportal.ceos.org%2Ft-d_wiki%3Fp_p_id%3D54_INSTANCE_Wg3ti1194i20%26p_p_lifecycle%3D0%26p_p_state%3Dnormal%26p_p_mode%3Dview%26p_p_col_id%3Dcolumn-2%26p_p_col_count%3D1%26_54_INSTANCE_Wg3ti1194i20_struts_action%3D%252Fwiki_display%252Fview%26_54_INSTANCE_Wg3ti1194i20_nodeName%3DCEOS_Terms_and_Definitions%26_54_INSTANCE_Wg3ti1194i20_title%3D3.%2BObservation%2Bproperties%2Bwords&amp;amp;data=04%7C01%7Cfaye.lai%40npl.co.uk%7C71d207afa14d469389d808d988e92c16%7C601e5460b1bf49c0bd2de76ffc186a8d%7C1%7C0%7C637691357310857886%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;amp;sdata=sNQT%2Fm1r%2FyMk1JZE5BN%2Bo2OKtOj%2FjhyIFrfqx0A%2B4zg%3D&amp;amp;reserved=0"&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt;3. Observation properties words&lt;/span&gt;&lt;/a&gt;&lt;span class="diff-html-added" previous="added-diff-4" changeId="added-diff-5" next="last-diff"&gt; &lt;/span&gt;&lt;/p&gt;</summary>
    <dc:creator>Emma Woolliams</dc:creator>
    <dc:date>2021-10-04T18:27:43Z</dc:date>
  </entry>
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