Zjišťování průběhu změn teploty sněhu v běžecké stopě
Measurement of changes in snow temperature in skiing track
Author(s): Jan Ondráček, Jan Novotný, Jan Novotný sr., Božena PaugschováSubject(s): Environmental interactions, Sports Studies
Published by: Masarykova univerzita nakladatelství
Keywords: cross-country skiing; classical technique; temperature of snow; infrared thermography;
Summary/Abstract: Friction of pair of skis increases the temperature of the snow in the skiing track.This temperature is connected with the use of specific wax in rising tube in the ski for classic. The main aim of our thesis is to find out with a help of infrared thermography if the change of this temperature of skiing track before and after passage of the team of skiers is so important that it can influence service of skies for competition reasons. To find out the changes of snow temperature in the skiing track we have used thermographical system FLIR SC 620 with frequency sampling of 30Hz.This system was used after passage of a group of 11 skiers. Significant continual increase of snow temperature has been indicated when group of skiiers passed (0,87±0,153 °C) and decrease to original level 10 - 30 seconds after passage of skiers.
Journal: Studia sportiva
- Issue Year: 4/2010
- Issue No: 2
- Page Range: 43-48
- Page Count: 6
- Language: Czech