Science Club: GIS
GIS stands for Geographic Information Services.
GIS combines geospatial features with tabular data in order to help users analyze real-world issues. GIS is more than just a pretty map, it can help users make intelligent decisions based on spatial data. For example, developers may be searching for a parcel of land greater than 20 acres, that is adjacent to a railroad track, that has good soil for septic systems, and is accessible to a public water supply. By overlaying parcels, soils, water lines and aerial photography properties that meet the criteria can be graphically displayed. GIS uses a relational database to perform analysis on each map layer. Using the combination of map layers and databases, GIS can greatly improve our ability to analyze data.
The US Environmental Protection Agency website describes GIS in a similar was as "a computer system that allows you to map, model, query, and analyze large quantities of data within a single database according to location. GIS gives you the power to:
- create maps
- integrate information
- visualize scenarios
- present powerful ideas
- develop effective solutions
Many sources of GIS information are available online. A few valuable resources are...