November 2019 No Images? Click here Happy GIS Day!GIS Analyst Dakota Blanchard collecting data for a GIS map November is full of holidays: Thanksgiving, Veterans Day, and, oh yes, GIS Day. GIS, which stands for Geographic Information System, is a system that digitally links maps to information so users can visualize, understand, and query the information. If you have used a mapping program to find the best route to a location, see where the cheapest gas is, or locate a nearby restaurant, then you have used GIS. November 13, 2019 marked the 20th annual GIS Day, but geographic inquiry has been around a lot longer. One of the earliest uses of GIS data occurred in 1854, when physician John Snow used data and a map to identify the source of a cholera epidemic in London. Today, GIS is used for literally thousands of tasks, such as assessing environmental impacts; delineating wetlands; mapping floodplains; mapping subsurface utilities; and managing city assets such as street signs, fire hydrants, and utility poles. Contact GUY to see how our GIS team can help you store, analyze, and understand your data. A portion of Dr. John Snow's 1854 cholera map. Each bar represents a death due to cholera. Dr. Snow was attempting to demonstrate a connection between the water pump on Broad St and the number of cholera cases. |