September 27, 2016

Join your geospatial colleagues for casual conversation that may range from arcpy to apple pie and hopefully won't veer into politics (no promises, though). Three Penny Taproom has great food and drinks, so you can choose to partake or just stop in for a quick hello. All are welcome and we guarantee that someone (Leslie) will be there from 5 pm - 8 PM, wearing a map on my head (or something). 

When: September 28, 2016, 5 PM - 8 PM 

Where: Three Penny Taproom,  108 Main St., Montpelier, VT.


Let Me Know  if You Plan To Stop By:



September 23, 2016

Members of the NEARC-L email listserv engaged in a discussion recently about whether which software is taught at academic institutions (and elsewhere) matters. I encourage you to check out the actual discussion since it was interesting!

I was inspired to post a quick and unscientific survey to collect the opinions of whoever was willing to share them wihin about a day, and the results are in the PDF linked here: Survey Results

And here are the responses to the open-ended question at the end: Comments

Hope you find it interesting!

August 19, 2016

Hello All!

A DRAFT VT GIS Parcel Data Standard 2.0 has been produced and is available to the public for a 30-day comment period.  This version is a draft replacement for version 1.1.  Consider providing feedback by completing this survey.  More information on the Vermont Statewide Property Parcel Mapping Program is available on its web page.

August 8, 2016

Exciting news from Pat Moulton, Secretary of ACCD:

Lucy Leriche and I are excited to announce that John Adams has been selected as the new Director of the Vermont Center for Geographic Information! Most recently, John served as Planning and Policy Manager at the Department of Housing and Community Development within the Agency of Commerce and Community Development.

John brings to VCGI experience and enthusiasm for using data and mapping to guide decision making processes across state government.  Since beginning at DCHD in 2012, John has been a leader in land use policy, legislative initiatives and managing special projects – notably using GIS to improve workflows and to ensure Vermont’s public investments are supported by data. He is the primary author of Vermont’s new Planning Manual and has been a key figure in a wide variety of interagency initiatives relating to land use, housing, transportation and energy. As someone with track record of building consensus and commitment to improving customer service in state government, he was the recipient of a 2016 Public Service Recognition Award.

John is a certified professional planner who has worked at the municipal level and has taught Land Use Policy and Economics at the University of Vermont. He holds a Masters of Urban and Regional Planning from Queen’s University and a Bachelor of Arts in Environment and Development from McGill University. In his personal capacity, John volunteers on the Montpelier Planning Commission, roasts coffee and brews beer.

A search committee involving multiple agencies and partners selected John from a pool of incredibly well qualified candidates from around the country.  John will start with VCGI on Tuesday, September 9th, 2016.

Please join us in congratulating John on this exciting new position!


July 18, 2016

UPDATE  7/18/16

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).