Case Study

Intergraph’s Stereo Analyst Gathers and Updates Stereo Feature Data for Park’s Wetlands

Adirondack Park Agency Uses Stereo Analyst for ArcGIS to Protect and Regulate its Wetlands While Reducing Costs

Identifying Goals
Converting analog images to digital images can be a lengthy process – a process the Adirondack Park Agency (APA) once performed on a daily basis. The APA administers the New York State Freshwater Wetlands Act in a park that covers six million acres. The park’s wetlands account for 16 percent of this acreage, which makes APA’s wetland protection and regulation program a large project to administer.
For years, the agency mapped these marshes with overlays on top of analog photographs. APA didn’t have official wetland maps for a large portion of the park, so it relied on maps developed through EPA grants, lot-by-lot air photo interpretation, and site visits by a biologist. Without aerial photo capability, the APA would need additional funds, resources, and biologists to monitor these areas during site visits.

To safeguard Adirondack’s bogs and swamps, APA needed accurate and up-to-date images of these areas. Because wetlands change over time, in part due to frequent beaver activity, it is vital for APA to capture the most current images of its wetlands and then compare these to previous images to monitor any changes.

Overcoming Challenges
  • Obtain the most up-to-date images of the wetlands’ conditions
  • Determine wetland boundaries in the landscape before sending biologists into the field
  • Determine the most efficient way to monitor and protect the wetlands
  • Reduce costs associated with site visits to measure wetland activity
Realizing Results

To achieve this, APA views aerial photography in stereo to get accurate documentation and remote delineation of the wetlands. The Agency receives its aerial photography from the New York State Division of Homeland Security which flies over one-fifth of the state each year, allowing the Agency to bring those photographs into stereo view.

APA selected Intergraph’s Stereo Analyst for ArcGIS® to extend its current systems and provide a stereo feature collection tool for its GIS platform. Stereo Analyst for ArcGIS gathers and updates feature data maintained in ArcGIS. Working transparently on a “do-it-yourself” platform, this tool enhances visualization capabilities while supporting all the tools ArcGIS users are familiar with. With Stereo Analyst, APA can be more accurate with its data by extending its standard tools into the 3D world we live in.

“We went with Stereo Analyst because it integrates so well with ArcGIS and gives us a huge boost in productivity and the quality of work we do here,” said John Barge, Mapping Technologist at Adirondack Park Agency. “We had zero problems with the licensing and loading of the extension, and it has been great for us.”

With Stereo Analyst, APA is able to load orthoimagery in one window while loading in parcel boundary layers, road layers, and zoning layers into the Stereo Analyst  window. The Agency views these images in 3D to better determine the wetland boundaries in the landscape before sending biologists into the field.

“Stereo Analyst allows us to set parameters for these digitized photos and take full advantage of the data we have. The simple data importing process really made a huge difference in our workload. With the help of Stereo Analyst, we created a wetland monitoring process that would have otherwise been a huge challenge,” continued Barge.

With Stereo Analyst for ArcGIS, the Adirondack Park Agency saves several thousands of dollars each year by reducing its number of staff members and state vehicles dedicated for wetland site visits. Stereo Analyst is helping APA make smarter decisions about the preservation of one of the world’s most important ecosystems.

For more information on Stereo Analyst, visit
Corporate Profile

Intergraph is the leading global provider of engineering and geospatial software that enables customers to visualize complex data. Businesses and governments in more than 60 countries rely on Intergraph’s industry-specific software to organize vast amounts of data to make processes and infrastructure better, safer and smarter. The company’s software and services empower customers to build and operate more efficient plants and ships, create intelligent maps, and protect critical infrastructure and millions of people around the world.

Intergraph operates through two divisions: Process, Power & Marine (PP&M) and Security, Government & Infrastructure (SG&I).  Intergraph PP&M provides enterprise engineering software for the design, construction, operation and data management of plants, ships and offshore facilities. Intergraph SG&I provides geospatially powered solutions, including ERDAS technologies, to the public safety and security, defense and intelligence, government, transportation, photogrammetry, and utilities and communications industries. Intergraph Government Solutions (IGS) is a wholly owned subsidiary of Intergraph Corporation responsible for the SG&I U.S. federal business.

Intergraph is part of Hexagon (Nordic exchange: HEXA B;,
a leading global provider of design, measurement and visualisation technologies that enable customers to design, measure and position objects, and process and present data. For more information, visit and

Intergraph Corp.
Jason Sims
Geospatial Operations
(770) 776-3400
19 Interpro Road
Madison, AL 35758, USA

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