Effects of Snow on GPS Accuracy in Forest Environments
Wed, 04/18/2012 - 15:54
Abstract: Abstract Global Positioning Systems, or GPS, have become an indispensable aspect of modern life, used in everyday situations and is a vital component of many occupations, including forestry and natural resources. With increased GPS accuracy, a forester is able to better locate boundaries and geographic or cultural features beneath forest canopy, leading to increased productivity. In the terms of forestry practices, decreased accuracy can cause errors which could lead to financial or physical loss of resources. The goal of this study is to determine the effects of canopy snow on the accuracy of commercially available, recreation grade GPS units which are suitable for forestry use. The effect of snow on canopy closure was tested through the photographic examination of pre and post snow canopy conditions. GPS accuracy was determined by taking averaged GPS measurements alongside the photo measurements. These were points were compared to previously established coordinates derived from a survey traverse. The results showed that snow did affect the canopy closure of the test forest, yet any correlation between GPS accuracy and increased canopy closure was found to be inconclusive.
Literary Rights: On
File Attachments: Snyder2012.pdf