199 Franklin St., Suite 300
Auburn, NY 13021-3025
Phone: 315.252.8669
Fax: 315.253.7335

 

TerraExplorer

LiDAR and Terrain Services
IAGT offers a variety of LiDAR and terrain analysis services. To include FEMA compliant independent collection QA/QC and derived product development. IAGT has also pioneered options for freely available three dimensional viewing options for LIDAR and airphoto collections that offer an inexpensive and truly unique solution to making LiDAR data accessible to a large audience. For more information about IAGT’s LiDAR and Terrain Services, please visit our Terrain Products page.

On-site Weather Station
IAGT Webmail

Water Resource Management Support

Watershed Screening Models for Water Quality Assessment

Using several different approaches to evaluating phosphorous loading including Export Coefficient Modeling (ECM), Variable Source Area Hydrology (VSA), and calculating variable width Riparian Buffers (RBDE), IAGT worked to develop methodologies to quantitatively and descriptively evaluate factors such as the cost of implementation of various model approaches, technical capacity required for implementation of those models, and the overall value of the model results for aiding in targeted decision making at the local government level. The intended value of the models on assessing water quality is to assist in evaluating land use programs and water quality improvement projects.

The results of this body of work were presented at the Federally sponsored Interagency Conference on Research in the Watersheds Conference (ICRW3) in Estes Park, CO, and again at the New York State GIS Conference in Liverpool, NY.

Variable Source Area Hydrology

IAGT purchased sensors and deployed them in the field to validate topographic index based predictions of soils saturation and runoff potential. Topographic indices were calculated across the watershed as a predictor of areas prone to saturation overflow, and hence primary risk areas for runoff and as source areas for nutrient and pollutant load contributions.

Export Coefficient Modeling

This relatively complex model was adapted using ESRI model builder and implemented using both federally available and locally available data. The results allow for a spatial distribution of pollutant loading across a contributing watershed while preserving the modeled total load at the outlet. This has important implications for identifying source areas of pollution based on standardized watershed characteristics and conditions that can be represented in GIS data.

Riparian Buffer Delineation Equation

This effort involved using GIS datasets as numerical inputs for solving an equation that evaluates the effectiveness of riparian zones across a watershed. The results show a relative ranking of riparian areas based on their risks of contributing sediment (erosion potential) and pollutants (nutrient runoff potential) to a receiving stream. The work was presented at the AWRA Specialty Conference on Wetlands Ecosystems in Norfolk, VA.


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