<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>ConceptStation - level of accuracy between USGS low, medium and high level terrain data from Geocoordination services</title><link>https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/228942/conceptstation---level-of-accuracy-between-usgs-low-medium-and-high-level-terrain-data-from-geocoordination-services</link><description>Hello, 
 I am looking to verify the accuracy of the various resolution options (low, medium and high) for the terrain data that ConceptStation can import from it&amp;#39;s geocoordination services (within the US). 
 From what I understand, the data is pulled</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: ConceptStation - level of accuracy between USGS low, medium and high level terrain data from Geocoordination services</title><link>https://communities.bentley.com/thread/708622?ContentTypeID=1</link><pubDate>Tue, 26 Apr 2022 21:46:29 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:918d2748-e53e-4f58-990b-e73ecef6a4a1</guid><dc:creator>Marc Drouin</dc:creator><description>&lt;p&gt;Thanks Simon! This was very informative.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: ConceptStation - level of accuracy between USGS low, medium and high level terrain data from Geocoordination services</title><link>https://communities.bentley.com/thread/708618?ContentTypeID=1</link><pubDate>Tue, 26 Apr 2022 21:14:58 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:ba592eb8-8655-4808-9d5f-3febf7198ae0</guid><dc:creator>Simon Normand</dc:creator><description>&lt;p&gt;Hello Marc,&lt;/p&gt;
&lt;p&gt;Geocoordination Services (GCS) is a spatial index that returns datasources for imagery and terrain according to the LAT/LONG polygon that the application provides. For North America, its primary sources are USGS and GeoGratis.&lt;/p&gt;
&lt;p&gt;From the list of terrain datasources returned by&amp;nbsp;GCS, Conceptstation groups the results into 3 different buckets, low/medium/high resolution, assuring that each bucket has 100% coverage for the area supplied.&lt;/p&gt;
&lt;p&gt;You can inspect each bucket by selecting it in the dialog and clicking on the &amp;#39;I&amp;#39; icon in the Details column. This brings you to the &amp;#39;Selected dataset details&amp;#39; windows where it lists each file and its Term of use.&lt;/p&gt;
&lt;p&gt;Typically for the&amp;nbsp;USA, the results will be:&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;High:&amp;nbsp; &amp;nbsp;1/9 arc-second (3.4m of resolution)&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Medium:&amp;nbsp; 1/3 arc-second (10m of resolution)&lt;/p&gt;
&lt;p style="padding-left:30px;"&gt;Low: 1 arc-second (30m of resolution)&lt;/p&gt;
&lt;p&gt;I hope this helps,&lt;/p&gt;
&lt;p&gt;Simon&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>