The new DEM data is now available for download, we are working to resolve issues with the Hillshade data, and Contours will be next on the list, followed by services! See details below on extent for the new data!
All LiDAR-related data currently available on the Vermont Open GeoData portal will be unavailable starting 12pm Friday July 1, 2016 through the weekend while updated data is being migrated to the portal. These updates include:
New LiDAR Data Available:
1. 2013 Rutland/Grand Isle data “collection” which includes the Mad River Valley (see map here): 0.7m resolution, Quality Level 2 (QL2).
2. A pre-release portion of the 0.7m Quality Level 2 (QL2) 2014 “Eastern VT” data “collection” which includes a portion of Georgia and stretches south along the lake into Charlotte in Chittenden County (see map here).
Changes to Existing Data:
1. Updated naming convention to all LiDAR related data. E.g., “Elevation_DEM1m1020_2005.img” is now “Elevation_DEM1M2005_1020.img”.
a. Digital Elevation Model (DEM) data now reflects its “hydro treatment”, e.g., DEM = “pure” DEM; DEMHF = “Hydro-flattened” DEM; DEMHE = “Hydro-enforced” DEM; see USGS’s “Hydro Treatments of LiDAR Derived DEMs” powerpoint for details.
2. All downloadable data layers are in their original, vendor-delivered tiling structure, re-projected to VT State Plane Coordinate System NAD83 meters, Zunits meters and the Erdas Imagine format. This primarily affected the following collections:
a. 2008 “Lower” Missisquoi – Reimported to original 1.6m, “hydro-flattened” DEM format;
b. 2010 “Upper” Missisquoi (a.k.a. “Rock River”) – Reimported to original 1.6m, “hydro-flattened” DEM format;
c. 2012 Bennington County – Reimported to original 2m, “pure” DEM format;
3. Only DEMs and contours (DEM/DEMHE/DEMHF) are provided in tiled format. Other derivatives are in single mosaic file format only.
a. When contour data was part of the original vendor delivery they are in the same tile index structure as the DEMs.
b. When contour data was not part of the original vendor delivery and created by VCGI in 2013/2014 they are in the “Ortho9” tile index.
4. All primary (DEMs) and secondary derivatives (ASPECT, DSM, HILSHD, nDSM & SLOPE) are available in a single, mosaic file format covering the full “collection” extent.
Changes to Metadata:
- All LiDAR metadata files have been updated to latest EGC format (May 2016).
- For original vendor metadata see “All VT LiDAR on an External drive” main page for all project level metadata in a central location (these are original vendor metadata for LAS data).
The 2016 Vermont Remote Sensing Workshop will provide hands-on training with a broad range of remote sensing technologies, including Unmanned Aircraft Systems (UAS), lidar, and thermal satellite imagery. The workshop is designed to help federal, state, regional planning commission, and local GIS users improve their ability to harness the power of remotely sensed data. Funding for this workshop is provided by AmericaView and the US Department of Transportation.
Dates and Locations
- August 9, 2016: 9AM-11AM, UAS flight operations in Waterbury, Vermont. This is an optional session and is dependent upon the weather.
- August 10, 2016: 9AM-5PM, University of Vermont, Aiken Center (81 Carrigan Drive), Room 101. Lunch will be provided!
Registration is closed for this event.
There are 18 seats available for the August 10th training. Priority will be given to government (federal, state, regional planning commission, and municipal) employees. Participants should be very comfortable working with geospatial data and have experience with desktop GIS software.
The Vermont Geographic Alliance will be offering 2- 2 day workshops this fall for educators interested in learning how to use ArcGIS Online as an instructional tool. The first series will be hosted at Lyndon State College on 9/17 and 9/24, and the second series will be hosted at Windsor Schools on 10/15 and 10/22. Lunch and refreshments will be available at both workshop. Upon completion, participants will receive a $100 stipend, certificates of completion recognizing professional development hours, and access to the VGA Google+ Community where they can connect with other VT educators who use ArcGIS Online in their K-12 classrooms. Those interested may pre-register using this Google Form. Please email Keighan.Chapman@castleton.edu or Scott.Roper@castleton.edu for more information.
In crisis situations like an earthquake, volcanic eruption, avalanche or epidemic, first responders need up-to-date digital maps to navigate the affected area. However, many remote regions around the world simply do not have the data necessary for aid groups to safely traverse city streets and locate rural villages post-disaster. In the event of a disaster, the Humanitarian OpenStreetMap Team (HOT) mobilizes volunteer mappers around the world to focus their efforts on data deficient regions.
UVM’s HOT holds mapathons once or twice a month at a computer lab in the Aiken Center on the UVM campus in Burlington. Read about recent mapathons here: http://letters-sal.blogspot.com/2016/06/uvm-humanitarian-openstreetmap-team.html and contact mapathon coordinator Noah Ahles to be added to the notification list: firstname.lastname@example.org Cell: 914-960-4613
Your company or organization can help support these effective volunteer events:
- Help pay for refreshments for the volunteers!
- Send volunteers!
- Contribute directly to the International Humanitarian OpenStreetMap Team in honor of the UVM Team (let us know so we can thank you and give you credit!) - https://hotosm.org/donate
- We will acknowledge your contributions at our events and at our event registration web pages.
- Contact Noah (above) if you would like to contribute.
Map of Sri Lanka before mapathons Map of Sri Lanka after mapathons
Many of the presentations offered at the May 5th Forum held in White River Junction are now available as PDFs (or in other formats) at the Event Archive page! More will be added over the next week or so as presenters provide them.