DALIS Project

Delaware County Auditor's GIS Office conducts a Sales to Appraisal Value Ratio analysis on a quarterly basis. Each quarter demonstrates the average sales/appraised value ratio of residential parcels for every entity in Delaware County (Ratio between 75 and 125 percent). It also shows the number of sales, average sales and appraisal value by jurisdiction. For more information click HERE.

Three Members of GIS Team Receive "GISP" Certificates

Jinhu Ju, Melissa Lobdell, and Tara Bennett received their "GISP" certificates from GISCI Institution. Congratulations to all of them!

Two Members of DALIS Project's Staff Receive GIS Certificate

Both Melissa Lobdell and Tara Bennett received their certificates for completion of the Geographic Information Systems Program from Columbus State Community College in Spring Quarter of 2007.

DALIS Project Wins Two National Awards

The National Association of Counties (NACo) announced that the Delaware County GIS Department has won two National Achievement Awards for its DALIS Web Interactive Map Server and Sex Offender Locator Applications.

NACo’s Achievement Award is a non-competitive program that recognizes counties for creative and innovative program development and implementation, efficient administrative management of county agencies and responsible government to local citizens. Since the program’s inception, NACo has honored hundreds of county government initiatives that have generated professional well trained workforces, maintained cost effective measures, and enhanced services to diverse populations to improve the overall quality of life. Awards are given in more than 20 categories, ranging from arts and historic preservation to volunteerism.

Zoning and Development Information

In June 2007, 21 data layers were added to DALIS Web IMS application under a new tab called the "Zoning" tab. The Zoning tab provides 19 zoning layers and two "Development in Pipeline" layers for Pending Rezoning proposals and Active Subdivisions (unrecorded). 18 of these zoning layers and the two "Development in Pipeline" layers are developed by Delaware County Regional Planning Commission. More detailed metadata is available at the layer level directly from the IMS application. The City of Delaware Zoning layer is developed by The City of Delaware Development Department. To access all the Zoning layers, go to the Zoning tab of DALIS Web.

Delaware County Annexation Application

After several months of research, data collection, and application development the DALIS team has launched Delaware County’s Annexation Application. Annexations and Conforming (Coterminous) Boundary proposals from as far back as 1853 to present time can now be searched either by the municipality name or by the year that the annexation was recorded. When searching, you can also use a combination of these two variables. As part of this project, every available Annexation and Conforming Boundary document was scanned and PDF versions of these scanned documents were linked to areas that the annexation and/or the conforming boundary was located in. Over 7,400 pages of scanned documents are now accessible from this application. You can also view our continuously updated parcels and road centerline layers as well as the 2006 Orthophoto imagery from this application. The application can be accessed from here.

2006 Delaware County Orthophotography and Topography Datasets

Delaware County 2006 Orthophotography and Topography datasets were released March 6, 2007. For more information click here.

Delaware County Sex Offender Locator

Delaware County sex offenders can be identified and located using DALIS Project's new application. To view the application click here.

GIS Day 2008

Delaware County's GIS team has been a GIS Day participant since this event started in 1999. In previous years, the event was held at the JVS North in 1999, from 2000 to 2006 at Dempsey Middle School, and in 2007 at Miami University in Oxford, Ohio. To view the photos for 1999 to 2007 click on the links below:

1999 2000 2001 2002 2003 2004 2005 2006 2007

This is the 10th year that Delaware County is celebrating the Geography Awareness Week and GIS Day.

The Geography Awareness Week is sponsored by the National Geographic Society, the American Association of Geographers (AAG), Environmental Systems Research Institute, Inc. (ESRI), the Urban and Regional Information Systems Association (URISA), and the University Consortium for Geographic Information Science (UCGIS). Since 1987, the National Geographic Society has sponsored Geography Awareness Week to promote geographic literacy in schools, communities, and organizations, with a focus on the education of children. This event was intended to promote the understanding of geography in schools around the world.

For the past 9 years, Delaware County GIS team has been visiting various schools within Delaware County educating students of various ages about GIS, Geography and GIS Day. This year, the GIS office held an open house, a map gallery, and several informational slide shows and games in the County's Hayes Service Administration Building. Over 250 students from Schultz and Conger Elementary Schools and Willis Middle School participated in the event. Volunteers from several other entities such as Delaware Soil & Water Conservation District, Delaware General Health District, and City of Dublin attended and/or presented. The following photos were taken at the event.

Click the thumbnails below to enlarge each photo.

DALIS Project's Web Site Redesigned

DALIS Project's web site was completely redesigned and launched in May of 2006. The new web site contains over 190 web pages and makes over 800 maps and 230 data layers available to the public.

County's Orthophoto and LiDAR Project awarded to Merrick & Company

County's 2006 Orthophoto and Light Detection And Ranging (LiDAR) project was awarded to Merrick and Company. This was the third time that Merrick was hired by the county. Merrick flew the county in April of 2006 and this time, the resolution of orthophotos for the entire county was at six inch pixel resolution as opposed to three varying resolutions of six inch, one foot and two feet in previous projects (1991, 1997 and 2002). Merrick is also providing the county with LiDAR datasets and 2 foot contours for the entire county. Both the orthophotos as well as LiDAR and contour datasets will be delivered to the county by February 2007.

DALIS Project's ArcIMS Application is Featured on Geography Network

DALIS Project's website is featured on the Geography Network. Geography Network is a global network of geographic information users and providers. It is managed by Environmental Systems Research Institute (ESRI) and provides the infrastructure needed to support the sharing of geographic information among data providers, service providers, and users around the world.