Accuracy https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236 2026-04-17T07:30:23Z 2026-04-17T07:30:23Z Emma Woolliams https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Accuracy?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.3 2021-10-01T15:21:50Z 2019-12-02T10:27:47Z

<p> <strong>Top Level Definition</strong></p><p> Closeness of agreement between a measured quantity value and a true quantity value of a measurand.</p><ul><li> NOTE 1 The concept ‘measurement accuracy’ is not a quantity and is not given a numerical quantity value. A measurement is said to be more accurate when it offers a smaller measurement error.</li><li> NOTE 2 The term “measurement accuracy” should not be used for measurement trueness and the term “measurement precision” should not be used for ‘measurement accuracy’, which, however, is related to both these concepts.</li><li> NOTE 3 ‘Measurement accuracy’ is sometimes understood as closeness of agreement between measured quantity values that are being attributed to the measurand. </li></ul><p> <strong>Source</strong></p><p> VIM  [<a href="https://www.bipm.org/en/publications/guides/vim.html">RD18</a>], GUM [<a href="https://www.bipm.org/utils/common/documents/jcgm/JCGM_100_2008_E.pdf">RD4</a>]</p><p>  </p><p> <strong>Definitions used in other communities</strong></p><p> <strong>ACIX community</strong></p><p> <span style="font-size: 8pt;">[Community, not standard, definition]</span></p><div> Used in the atmospheric correction community to represent the average difference between the modelled and measured quantities</div><div>  </div><div><p> <strong>Source</strong></p><p> <a href="https://doi.org/10.3390/rs10020352">ACIX 2018</a></p><p> Notes: This definition may be similar to the concept "bias" and may be better defined as such.</p></div>

Emma Woolliams 2019-12-02T10:27:47Z Emma Woolliams https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Accuracy?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.4 2021-10-01T15:26:41Z 2019-12-02T10:27:47Z

<p> <strong>Top Level Definition</strong></p><p> Closeness of agreement between a measured quantity value and a true quantity value of a measurand.</p><ul><li> NOTE 1 The concept ‘measurement accuracy’ is not a quantity and is not given a numerical quantity value. A measurement is said to be more accurate when it offers a smaller measurement error.</li><li> NOTE 2 The term “measurement accuracy” should not be used for measurement trueness and the term “measurement precision” should not be used for ‘measurement accuracy’, which, however, is related to both these concepts.</li><li> NOTE 3 ‘Measurement accuracy’ is sometimes understood as closeness of agreement between measured quantity values that are being attributed to the measurand. </li></ul><p> <strong>Source</strong></p><p> VIM  [<a href="https://www.bipm.org/en/publications/guides/vim.html">RD18</a>], GUM [<a href="https://www.bipm.org/utils/common/documents/jcgm/JCGM_100_2008_E.pdf">RD4</a>]</p><p>  </p><p> <strong>Definitions used in other communities</strong></p><p> <strong>ACIX community</strong></p><p> <span style="font-size: 8pt;">[Community, not standard, definition]</span></p><div> Used in the atmospheric correction community to represent the average difference between the modelled and measured quantities</div><div>  </div><div><p> <strong>Source</strong></p><p> <a href="https://doi.org/10.3390/rs10020352">ACIX 2018</a></p><p> Notes: This definition may be similar to the concept "bias" and may be better defined as such.</p></div>

Emma Woolliams 2019-12-02T10:27:47Z Emma Woolliams https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Accuracy?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.5 2021-10-06T21:09:17Z 2019-12-02T10:27:47Z

<p> <strong>Top Level Definition</strong></p><p> Closeness of agreement between a measured quantity value and a true quantity value of a measurand.</p><ul><li> NOTE 1 The concept ‘measurement accuracy’ is not a quantity and is not given a numerical quantity value. A measurement is said to be more accurate when it offers a smaller measurement error.</li><li> NOTE 2 The term “measurement accuracy” should not be used for measurement trueness and the term “measurement precision” should not be used for ‘measurement accuracy’, which, however, is related to both these concepts.</li><li> NOTE 3 ‘Measurement accuracy’ is sometimes understood as closeness of agreement between measured quantity values that are being attributed to the measurand. </li></ul><p> <strong>Source</strong></p><p> VIM  [<a href="https://www.bipm.org/en/publications/guides/vim.html">RD18</a>], GUM [<a href="https://www.bipm.org/utils/common/documents/jcgm/JCGM_100_2008_E.pdf">RD4</a>]</p><p>  </p><p> <strong>Definitions used in other communities</strong></p><p> <strong>ACIX community</strong></p><p> <span style="font-size: 8pt;">[Community, not standard, definition]</span></p><div> Used in the atmospheric correction community to represent the average difference between the modelled and measured quantities</div><div>  </div><div><p> <strong>Source</strong></p><p> <a href="https://doi.org/10.3390/rs10020352">ACIX 2018</a></p><p> Notes: This definition may be similar to the concept "bias" and may be better defined as such.</p><p><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"> </span><span class="diff-html-added" id="added-diff-0" previous="first-diff" changeId="added-diff-0" next="last-diff"> </span></p><p><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff">  </span></p><p><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"> </span><strong><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff">Category</span></strong><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"><!----></span></p><p><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"> </span><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%3D2.%2BMeasurement%2Band%2BMetrology%2Bwords&amp;data=04%7C01%7Cfaye.lai%40npl.co.uk%7C71d207afa14d469389d808d988e92c16%7C601e5460b1bf49c0bd2de76ffc186a8d%7C1%7C0%7C637691357310852893%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=6Z7RKKAjDIIw%2Bbkm%2ByC1Y59lUo%2FBNQDiM6JtmtGQLes%3D&amp;reserved=0" style="font-size: 8pt;"><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff">2. Measurement and Metrology words</span></a><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="last-diff"><!----></span></p></div>

Emma Woolliams 2019-12-02T10:27:47Z Paolo Registration Test https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Accuracy?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.0 2019-12-02T10:27:47Z 2019-12-02T10:27:47Z

<p><span class="diff-html-removed" previous="first-diff" changeId="removed-diff-0" next="removed-diff-1"> </span><strong><span class="diff-html-removed" id="removed-diff-0" previous="first-diff" changeId="removed-diff-0" next="removed-diff-1">Top Level </span>Definition</strong></p><p> Closeness of agreement between a measured quantity value and a true quantity value of a measurand. <span class="diff-html-removed" id="removed-diff-1" previous="removed-diff-0" changeId="removed-diff-1" next="added-diff-0"><!----></span></p><span class="diff-html-removed" previous="removed-diff-0" changeId="removed-diff-1" next="added-diff-0"> NOTE 1 The concept ‘measurement accuracy’ </span><p><span class="diff-html-added" id="added-diff-0" previous="removed-diff-1" changeId="added-diff-0" next="changed-diff-0">Note that </span><u><span class="diff-html-added" previous="removed-diff-1" changeId="added-diff-0" next="changed-diff-0">it </span><span class="diff-html-changed" id="changed-diff-0" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; added.&lt;/li&gt;&lt;/ul&gt;" previous="added-diff-0" changeId="changed-diff-0" next="changed-diff-1">is not a quantity</span></u><span class="diff-html-changed" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; added.&lt;/li&gt;&lt;/ul&gt;" previous="added-diff-0" changeId="changed-diff-0" next="changed-diff-1"> </span><span class="diff-html-changed" id="changed-diff-1" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-0" changeId="changed-diff-1" next="added-diff-1">and </span><u><span class="diff-html-added" id="added-diff-1" previous="changed-diff-1" changeId="added-diff-1" next="changed-diff-2">it </span><span class="diff-html-changed" id="changed-diff-2" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; added.&lt;/li&gt;&lt;/ul&gt;" previous="added-diff-1" changeId="changed-diff-2" next="changed-diff-3">is not given a numerical</span></u><span class="diff-html-changed" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; added.&lt;/li&gt;&lt;/ul&gt;" previous="added-diff-1" changeId="changed-diff-2" next="changed-diff-3"> </span><span class="diff-html-changed" id="changed-diff-3" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-2" changeId="changed-diff-3" next="changed-diff-4">quantity </span><u><span class="diff-html-changed" id="changed-diff-4" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; added.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-3" changeId="changed-diff-4" next="changed-diff-5">value</span></u><span class="diff-html-changed" id="changed-diff-5" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved out of a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-4" changeId="changed-diff-5" next="removed-diff-2">. A measurement is said to be more accurate when it offers a smaller measurement error.</span></p><li><span class="diff-html-removed" previous="changed-diff-5" changeId="removed-diff-2" next="removed-diff-3"> </span><span class="diff-html-removed" id="removed-diff-2" previous="changed-diff-5" changeId="removed-diff-2" next="removed-diff-3">NOTE 2 The term “measurement accuracy” should not be used for measurement trueness and the term “measurement precision” should not be used for ‘measurement accuracy’, which, however, is related to both these concepts.</span></li><li><span class="diff-html-removed" previous="changed-diff-5" changeId="removed-diff-2" next="removed-diff-3"> NOTE 3 ‘Measurement accuracy’ is sometimes understood as closeness of agreement between measured quantity values that are being attributed to the measurand. </span></li><p> <strong>Source</strong></p><p> VIM  [<a href="https://www.bipm.org/en/publications/guides/vim.html">RD18</a>], GUM [<a href="https://www.bipm.org/utils/common/documents/jcgm/JCGM_100_2008_E.pdf">RD4</a>]</p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><span class="diff-html-removed" id="removed-diff-3" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">Definitions used in other communities</span></strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">ACIX community</span></strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><span style="font-size: 8pt;"><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">[Community, not standard, definition]</span></span><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p><div><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> Used in the atmospheric correction community to represent the average difference between the modelled and measured quantities</span></div><div><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">  </span></div><div><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">Source</span></strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><a href="https://doi.org/10.3390/rs10020352"><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">ACIX 2018</span></a><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> Notes: This definition may be similar to the concept "bias" and may be better defined as such.</span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">  </span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">  </span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">Category</span></strong><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p><p><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"> </span><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%3D2.%2BMeasurement%2Band%2BMetrology%2Bwords&amp;data=04%7C01%7Cfaye.lai%40npl.co.uk%7C71d207afa14d469389d808d988e92c16%7C601e5460b1bf49c0bd2de76ffc186a8d%7C1%7C0%7C637691357310852893%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=6Z7RKKAjDIIw%2Bbkm%2ByC1Y59lUo%2FBNQDiM6JtmtGQLes%3D&amp;reserved=0" style="font-size: 8pt;"><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2">2. Measurement and Metrology words</span></a><span class="diff-html-removed" previous="removed-diff-2" changeId="removed-diff-3" next="added-diff-2"><!----></span></p></div><p><span class="diff-html-added" previous="removed-diff-3" changeId="added-diff-2" next="last-diff"> </span><strong><span class="diff-html-added" id="added-diff-2" previous="removed-diff-3" changeId="added-diff-2" next="last-diff">Suggestions</span></strong><span class="diff-html-added" previous="removed-diff-3" changeId="added-diff-2" next="last-diff"><!----></span></p><p><span class="diff-html-added" previous="removed-diff-3" changeId="added-diff-2" next="last-diff"> Suggest cut as this is included in the one below</span></p>

Paolo Registration Test 2019-12-02T10:27:47Z Emma Woolliams https://calvalportal.ceos.org/web/guest/cal/val-wiki/-/wiki/668236/Accuracy?_com_liferay_wiki_web_portlet_WikiPortlet_version=1.1 2021-10-01T13:55:46Z 2019-12-02T10:27:47Z

<p><span class="diff-html-added" previous="first-diff" changeId="added-diff-0" next="removed-diff-0"> </span><strong><span class="diff-html-added" id="added-diff-0" previous="first-diff" changeId="added-diff-0" next="removed-diff-0">Top Level </span>Definition</strong></p><p> Closeness of agreement between a measured quantity value and a true quantity value of a measurand.<span class="diff-html-removed" previous="added-diff-0" changeId="removed-diff-0" next="added-diff-1"> </span><span class="diff-html-removed" id="removed-diff-0" previous="added-diff-0" changeId="removed-diff-0" next="added-diff-1">Note that it </span><span class="diff-html-added" id="added-diff-1" previous="removed-diff-0" changeId="added-diff-1" next="changed-diff-0"><!----></span></p><ul><li><span class="diff-html-added" previous="removed-diff-0" changeId="added-diff-1" next="changed-diff-0"> NOTE 1 The concept ‘measurement accuracy’ </span><span class="diff-html-changed" id="changed-diff-0" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; removed.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="added-diff-1" changeId="changed-diff-0" next="changed-diff-1">is not a quantity </span><span class="diff-html-changed" id="changed-diff-1" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-0" changeId="changed-diff-1" next="removed-diff-1">and </span></li></ul><span class="diff-html-removed" id="removed-diff-1" previous="changed-diff-1" changeId="removed-diff-1" next="changed-diff-2">it </span><ul><li><span class="diff-html-changed" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; removed.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="removed-diff-1" changeId="changed-diff-2" next="changed-diff-3"> </span><span class="diff-html-changed" id="changed-diff-2" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; removed.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="removed-diff-1" changeId="changed-diff-2" next="changed-diff-3">is not given a numerical </span><span class="diff-html-changed" id="changed-diff-3" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-2" changeId="changed-diff-3" next="changed-diff-4">quantity </span><span class="diff-html-changed" id="changed-diff-4" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;&lt;b&gt;!diff-u!&lt;/b&gt; removed.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-3" changeId="changed-diff-4" next="changed-diff-5">value</span><span class="diff-html-changed" id="changed-diff-5" changes="&lt;ul class='changelist'&gt;&lt;li&gt;Moved out of a &lt;b&gt;paragraph&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to an &lt;b&gt;unordered list&lt;/b&gt;.&lt;/li&gt;&lt;li&gt;Moved to a &lt;b&gt;list item&lt;/b&gt;.&lt;/li&gt;&lt;/ul&gt;" previous="changed-diff-4" changeId="changed-diff-5" next="added-diff-2">. A measurement is said to be more accurate when it offers a smaller measurement error.</span></li><li><span class="diff-html-added" id="added-diff-2" previous="changed-diff-5" changeId="added-diff-2" next="removed-diff-2">NOTE 2 The term “measurement accuracy” should not be used for measurement trueness and the term “measurement precision” should not be used for ‘measurement accuracy’, which, however, is related to both these concepts.</span></li><li><span class="diff-html-added" previous="changed-diff-5" changeId="added-diff-2" next="removed-diff-2"> NOTE 3 ‘Measurement accuracy’ is sometimes understood as closeness of agreement between measured quantity values that are being attributed to the measurand. </span></li></ul><p> <strong>Source</strong></p><p> VIM  [<a href="https://www.bipm.org/en/publications/guides/vim.html">RD18</a>], GUM [<a href="https://www.bipm.org/utils/common/documents/jcgm/JCGM_100_2008_E.pdf">RD4</a>]</p><p><span class="diff-html-removed" previous="added-diff-2" changeId="removed-diff-2" next="added-diff-3"> </span><strong><span class="diff-html-removed" id="removed-diff-2" previous="added-diff-2" changeId="removed-diff-2" next="added-diff-3">Suggestions</span></strong><span class="diff-html-removed" previous="added-diff-2" changeId="removed-diff-2" next="added-diff-3"><!----></span></p><p><span class="diff-html-removed" previous="added-diff-2" changeId="removed-diff-2" next="added-diff-3"> Suggest cut as this is included in the one below</span></p><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span><span class="diff-html-added" id="added-diff-3" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span></p><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span><strong><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff">Definitions used in other communities</span></strong><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"><!----></span></p><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span><strong><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff">ACIX community</span></strong><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"><!----></span></p><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span><span style="font-size: 8pt;"><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff">[Community, not standard, definition]</span></span><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"><!----></span></p><div><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> Used in the atmospheric correction community to represent the average difference between the modelled and measured quantities</span></div><div><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff">  </span></div><div><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span><strong><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff">Source</span></strong><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"><!----></span></p><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> </span><a href="https://doi.org/10.3390/rs10020352"><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff">ACIX 2018</span></a><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"><!----></span></p><p><span class="diff-html-added" previous="removed-diff-2" changeId="added-diff-3" next="last-diff"> Notes: This definition may be similar to the concept "bias"</span></p></div>

Emma Woolliams 2019-12-02T10:27:47Z