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  <title>In Situ Measurement</title>
  <link rel="self" href="https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236" />
  <subtitle>In Situ Measurement</subtitle>
  <id>https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236</id>
  <updated>2026-04-21T22:42:04Z</updated>
  <dc:date>2026-04-21T22:42:04Z</dc:date>
  <entry>
    <title>In Situ Measurement 1.1</title>
    <link rel="alternate" href="https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/In Situ Measurement?_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/In Situ Measurement?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.1</id>
    <updated>2021-10-08T19:17:01Z</updated>
    <published>2020-01-16T14:36:57Z</published>
    <summary type="html">&lt;p&gt; &lt;strong&gt;Definition&lt;/strong&gt;&lt;/p&gt;&lt;p&gt; &lt;span style="font-size: 8pt;"&gt;(1) a direct measurement of the measurand in its original place&lt;/span&gt;&lt;/p&gt;&lt;div&gt; (2) any sub-orbital measurement of the measurand&lt;/div&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt; &lt;strong&gt;Source&lt;/strong&gt;&lt;/p&gt;&lt;p&gt; &lt;span style="font-size: 8pt;"&gt;(1) CEOS/ISO:19159 [&lt;a href="https://www.iso.org/standard/60080.html"&gt;RD10&lt;/a&gt;]&lt;/span&gt;&lt;/p&gt;&lt;div&gt; (2) GEOSS&lt;/div&gt;&lt;div&gt;  &lt;/div&gt;&lt;p&gt; &lt;strong&gt;Suggestions&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt; &lt;/span&gt;&lt;span class="diff-html-added" id="added-diff-0" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt; &lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt; &lt;/span&gt;&lt;strong style="font-size: 8pt;"&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt;Category&lt;/span&gt;&lt;/strong&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt;&lt;!----&gt;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt; &lt;/span&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%3D1.%2BEarth%2BObservation%2Bsystem%2Bwords&amp;amp;data=04%7C01%7Cfaye.lai%40npl.co.uk%7C71d207afa14d469389d808d988e92c16%7C601e5460b1bf49c0bd2de76ffc186a8d%7C1%7C0%7C637691357310842913%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;amp;sdata=MFNAfQnNfO%2FSg73NKEVZ4eUMLWqKqZn9Es5VcxyDP%2FQ%3D&amp;amp;reserved=0" style="font-size: 8pt;"&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt;1. Earth Observation system words&lt;/span&gt;&lt;/a&gt;&lt;span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"&gt;&lt;!----&gt;&lt;/span&gt;&lt;/p&gt;</summary>
    <dc:creator>Emma Woolliams</dc:creator>
    <dc:date>2020-01-16T14:36:57Z</dc:date>
  </entry>
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