LIDAR Data

Answered

Follow

Tom Wild

• April 18, 2020 19:10

Hi,

I recently discovered that Vermont makes LIDAR data available on a mapping website, and it's invaluable for finding old manmade disturbances, like old logging roads. Is there a chance you could incorporate that into your databases?

 

Thanks

0

• 

  Melanie Wilson

  • April 22, 2020 18:51

  Hey Tom Wild,
  
  Thanks for reaching out.
  
  We don't have any plans to add Vermont's LIDAR data to Gaia GPS.
  
  However, you can import nearly any map you find on the internet yourself. This article gives instructions for the different ways to import custom map sources:

  • Import a Custom Map Source

  
  Specifically, you can import this source by following these steps:
  
  A number of the LIDAR data files are available here: https://maps.vcgi.vermont.gov/arcgis/rest/services/EGC_services
  
  To import the hillshade data you would use this URL:

  • https://maps.vcgi.vermont.gov/arcgis/rest/services/EGC_services/IMG_VCGI_LIDARHILLSHD_WM_CACHE_v1/ImageServer/WMTS/tile/1.0.0/EGC_services_IMG_VCGI_LIDARHILLSHD_WM_CACHE_v1/default/default028mm/{z}/{y}/{x}.png

  
  To import the contour data you would use this URL:

  • https://maps.vcgi.vermont.gov/arcgis/rest/services/EGC_services/MAP_VCGI_LIDARCONTOURS_WM_CACHE_v1/MapServer/WMTS/tile/1.0.0/EGC_services_MAP_VCGI_LIDARCONTOURS_WM_CACHE_v1/default/default028mm/{z}/{y}/{x}.png

  
  These URLs are generated by following these steps:

  1. Open the WTMS GetCapabilities XML file
  2. Find the template in the XML file
     

     https://maps.vcgi.vermont.gov/arcgis/rest/services/EGC_services/MAP_VCGI_LIDARCONTOURS_WM_CACHE_v1/MapServer/WMTS/tile/1.0.0/EGC_services_MAP_VCGI_LIDARCONTOURS_WM_CACHE_v1/{Style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.png

  3. Find the Style value which is "default"

  4. Find the TileMatrixSet value which is "default028mm"

  5. Update the template and set {TileMatrix}/{TileRow}/{TileCol} to {z}/{x}/{y} 

  6. Copy & paste the URL from Step 5 into the custom map source import page

  7. Update the coordinates in the preview map to somewhere in Vermont

  8. Adjust the order of {z}/{x}/{y} until the tiles are displayed in the preview map

  
  Click the "Help" button at the bottom of the screen if you have any questions.

  0

  Comment actions Permalink
• 

  Tom Wild

  • April 23, 2020 11:03

  Thanks for the detailed reply. I have imported maps, but didn't know the procedure for extracting the data.

  0

  Comment actions Permalink
• 

  pghbridges

  • April 12, 2022 01:17

  Can you answer a similar question regarding Creating a Custom Map Layer from USGS 3DEP Lidar? It's much higher resolution than the existing US Shaded Relief layers.

  I found this, but don't see how to import it:

  https://elevation.nationalmap.gov/arcgis/services/3DEPElevation/ImageServer/WMSServer?FORMAT=image/png32&TRANSPARENT=TRUE&VERSION=1.3.0&SERVICE=WMS&REQUEST=GetMap&LAYERS=3DEPElevation:Hillshade Multidirectional&STYLES=&CRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}

  0

  Comment actions Permalink

Please sign in to leave a comment.