GIS Data & Maps
A GIS (Geographic Information System) combines computer hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographic data. Data are represented as layers within a GIS as shown below.
Maps are commonly associated with a GIS as they are the most visible component. A GIS will also use data captured by field observation using tools such as a Global Positioning System (GPS), location based information related to features on the ground, and information stored in standard databases. In essence, a GIS will allow a person to ask questions of or query a map much like they would a tabular database. For example, the county might want to know how many parcels in agriculturally zoned areas do not meet the minimum acreage required by the zoning code. Using layers representing county zoning and parcels, queries could be made to find out how many parcels are in an agricultural zone and which of those parcels are below the minimum acreage required under the agricultural zoning. With the necessary data, this query can be performed in a matter of minutes and displayed visually.
A GIS can link different data sets together by common location based data such as addresses or parcel numbers which can allow data to be shared between departments or agencies of varying specialties. By creating a shared database, one department can benefit from the work of another—data can be collected once and used many times.
Over the past few years, GIS data has become more and more prevalent on the internet due to advances in software and the proliferation of GPS technology. Many municipalities and other government agencies host websites that allow the public to view and query data much like any member of their staff would on a desktop application. These map services can range from visualizing zoning to retrieving permit information for a particular project. There are many applications of GIS technology in our world today.
To learn more please visit http://www.gis.com/index.html
This web page is a public resource for general information. The County of Glenn makes information available on its web site to enhance public knowledge and promote a better understanding of the County and its government. The County attempts to provide accurate, complete, and timely information. The County of Glenn makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness, or completeness of any of the database information provided herein due to the variety of data sources, collected and maintained for different purposes. The User expressly agrees that the use of the data provided herein is at the User’s sole risk.
Information provided on the County’s web site should not be used as a substitute for legal, accounting, real estate, business, tax, or other professional advice. The County of Glenn explicitly disclaims any representations and warranties of any kind, express or implied, including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. The County of Glenn assumes no liability for: 1) any errors, omissions, or inaccuracies in the information provided regardless of how caused; or 2) any decision made or action taken or not taken or not taken by the User in reliance upon any information or data furnished hereunder. User should verify information provided through a true title search, property appraisal, survey, or zoning verification prior to any action taken in reliance upon the information contained herein.