Department of Information Systems, Teikyo Heisei University, Ichihara, Chiba 290-0193, Japan
E-mail address: firstname.lastname@example.org
(Received July 22, 2004; Accepted September 14, 2004)
Keywords: Mountaineering, Global Positioning System, Autocorrelation Function, Fractal, f(a)-spectrum
Abstract. Using a portable navigator for Global Positioning System, the position and the altitude of a mountaineer hiking in the area of Tanzawa-Oyama Quasi-National Park are measured. The time series of average speed of a mountaineer is obtained. Fluctuation of average speed is analyzed in terms of autocorrelation function and f(a)-spectrum. It depends on a style of mountaineering.