GIS Services supports the Office of Land Quality (OLQ) through the use and application of GIS, GPS and other associated technologies.
Table of Contents
Definitions & Acronyms
- Geographic Information System (GIS): A collection of computer hardware, software and geographic data for capturing, storing, updating, manipulating, analyzing, and displaying all forms of geographically referenced information.
- Global Positioning System (GPS): A constellation of satellites developed by the U.S. Department of Defense that transmit radio signals that allow a GPS receiver anywhere on earth to calculate its own location. The Global Positioning System is used in navigation, mapping, surveying and other applications where precise positioning is necessary.
- Digitize: Process of assigning X,Y coordinates to locations of interest. A basemap is used as a visual reference so the locations of interest can be displayed as points, lines, or areas on a map in a Geographic Information System (GIS).
General responsibilities for OLQ
- Produce maps that meet Agency standards and customer specifications;
- Provide comprehensive GIS analysis;
- Maintain customized GIS applications and viewers for OLQ staff;
- Provide technical assistance/support with GIS applications as needed;
- GIS data development and management;
- AutoCAD support;
- Provide GPS technology services (equipment, data maintenance, and training);
- Create spatial representations from legal descriptions;
- Maintain and administer the Institutional Controls Registry;
- Provide OLQ spatial data to the IndianaMap (downloads are available from the site)
- Digitize locations and areas if needed for GIS applications.
Types of GIS information mapped
- Aerial photography
- Census data
- Institutional Controls
- Karst topography
- OLQ facility data and locations
- Parcel information (limited amount)
- Sampling data
- Section, Township, Range
- Surface water and ground water information
- Topographic Maps
- U.S. EPA databases that have coordinate information
- Water quality information
- Wellhead Protection Areas
- Wells (water, oil and gas)
- IDEM Spatial Data Collection Standards (May 1, 2013):
- IDEM, developed the document to support spatial data collection by IDEM staff and external source data collectors and submitters. Spatial data describes the location and/or shape of a feature on the earth’s surface. The standards help facilitate the accuracy, validity, consistency, comprehensiveness, and relevancy of IDEM’s spatial data. This document provides the private sector and IDEM staff standards and guidelines for collecting spatial data. The procedures and standards outlined in this document must be applied to spatial data collection work performed by or for IDEM.
- Electronic Digital Data (EDD) Submittal Guidelines:
- Guideline to be used when submitting electronic digital data for analytical and field data collected during a sampling event or submitting data associated with a map. The submitted file should contain the facility name, regulatory ID number (e.g. permit number, site number, facility ID number, case number), and a brief description of the file contents should be typed in the subject heading of the email.
- IDEM Spatial Coordinate Information:
- IDEM Spatial Coordinate Information is in the Universal Transverse Mercator (UTM) Coordinate System, North American Datum (NAD) 83, and in Zone 16 (linear units – meters). The Universal Transverse Mercator Coordinate System divides the World into 60 zones, each being 6 degrees longitude wide, and extending from 80 degrees south latitude to 84 degrees north latitude.
Other Useful Links
- IndianaMap: A public source for map data in Indiana (includes OLQ facilities)
- IGIC: Indiana Geographic Information Council (GIS related information)
- Lake Rim: Maps and data for the Lake Michigan region in northwest Indiana
- IHAPI: Indiana Historical Aerial Photo Index