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NJ- GeoWeb Interactive Basics Workshop

Discover the power of Geographic Information Systems (GIS) in this workshop. Learn how to capture, store, edit, analyze, and plot geographically referenced data using a computer-based system. Explore data layers such as municipal boundaries, streams, contaminated sites, and more. Access a comprehensive collection of environmental data through the NJ-GeoWeb Online GIS application.

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NJ- GeoWeb Interactive Basics Workshop

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  1. NJ-GeoWeb Interactive Basics Workshop May 16, 2018 NJDEP – Bureau of GIS Robert Muska Email:GISnet@dep.nj.gov Phone: 609-777-0672

  2. What is a Geographic Information System (GIS)? “A computer-based system used to capture, store, edit, display, analyze, and plot geographically referenced data at any scale”

  3. At its most basic: A digital interactive map Where features located on a map are tied to a spatial reference system (e.g. Longitude/ Latitude)

  4. GIS includes a database The database stores additional descriptive information about each feature in a table

  5. GIS data can be represented as: • Points (contaminated sites, child care centers) • Lines (streams, roads) • Polygons (municipal boundaries, wetlands) • Raster data (grid cells and imagery)

  6. Polygon Layer Municipal Boundaries

  7. Line Layer Streams

  8. Point Layer Contaminated Sites

  9. The layers can be combined into one map. Municipal boundaries + Streams + Contaminated sites

  10. GIS provides powerful geoprocessing tools for analysis Example: Using buffering tool to show contaminated sites within 1,2 and 5 miles radius

  11. Data layers that are particularly useful for environmental groups • Well head protection areas • Highlands planning area • Sewer Services areas • Streams • Category one waters • Aquifers • Watersheds • Topographic images • Imagery (natural) • Imagery (infrared) Parcels (Lot and Block) Wetlands Critical environmental and Historical Sites Land use Impervious surface Open space Known contaminated sites NJPDES Discharge Points- Surface Water Water Source Areas

  12. NJ-GeoWeb Online GIS application Comprehensive collection of environmental data available to public Data collected and processed by the NJDEP and other state agencies Includes detailed metadata which describes the data Easy to use analysis tools Free application

  13. Useful Resources NJDEP Bureau of GIS Help Desk: http://www.nj.gov/dep/gis/contactbgis.html Download site for NJDEP GIS data: http://www.nj.gov/dep/gis/stateshp.html Download site for NJ Department of GIS : http://njogis-newjersey.opendata.arcgis.com/ FEMA online site for viewing online flood hazard map: https://msc.fema.gov/portal/search Robert Muska, Email: GISnet@dep.nj.gov Phone: 609-777-0672

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