Title:		Can You Use Your TomTom to Measure Snow Depth?

			Abstract
Snow is an important component of the climate system and a critical storage component in the hydrologic cycle. However, in situ observations of snow distribution are sparse, and remotely sensed products are imprecise and only available at a coarse spatial scale. GPS geodesists have long recognized that snow can affect 
a GPS signal, but until recently, it was not realized that a GPS receiver could be used to measure properties of snow. A new technique is presented that uses reflections of GPS signals to measure snow depth. This method provides a spatially averaged measurement over a radius of 10-30 meters around a GPS antenna. Results will be shown for the Marshall research site south of Boulder, Niwot Ridge LTER, and some sites from the Plate Boundary Observatory 
(http://pbo.unavco.org).