EQUIPMENT USED FOR DETERMINING SNOW DEPTH, THICKNESS, QUALITY OR WATER CONTENT, NAMELY ASSOCIATED SOFTWARE AND COMPUTER; SPATIAL POSITIONING TECHNOLOGY USED FOR CREATING MAPS OF SNOW DEPTH, THICKNESS, QUALITY OR WATER CONTENT, NAMELY TRANSMITTERS, RECEIVERS, ANTENNAS, TIME REFLECTOMETRY TRANSDUCERS, SIGNAL PROCESSORS, COMPUTERS, SIGNAL PROCESSING, DISPLAY SOFTWARE AND SATELLITE GLOBAL POSITIONING SYSTEMS(GPS) INERTIAL AND DOPPLER POSITIONING INSTRUMENTS USED FOR NAVIGATION