Smoke Signals
Definition
Viewsheds refer to the geographic areas that are visible from a specific location. In GIS, a viewshed analysis is the process of identifying these visible areas based on the terrain and other obstructions such as buildings or vegetation. This analysis determines the zones of visibility, taking into account the elevation and line of sight from a particular vantage point.
What is Using Viewsheds to Understand Native American Smoke Signals?
Native Americans historically used smoke signals as a form of long-distance communication. By sending distinct shapes and sequences of smoke puffs into the air, they were able to convey messages across vast landscapes. Understanding the effectiveness and reach of these signals involves comprehending what was visible from one point to another, which is where viewshed analysis becomes an invaluable tool.
To put oneself in the shoes of Native Americans during the time smoke signals were actively used, a viewshed analysis can be performed using GIS technology. By simulating the locations from which smoke signals could be sent and received, researchers and historians can comprehend the extent of communication networks and territories. The analysis begins by selecting potential signal locations, often elevated points such as hilltops or ridges, then mapping out what regions these signals could be observed from. This offers insight into strategic locations for smoke signaling and the range over which they could effectively transmit messages.
The utilization of viewsheds in this case provides an understanding of how geography influenced the methods of communication among Native American tribes, allowing for enhanced historical interpretations and educational perspectives.
