Teplota sněhu při běhu na lyžích v obraze dynamické termografie (Pilotní studie)
Snow temperature during cross-country skiing at dynamic thermography image (Pilot study)
Author(s): Jan Novotný, Jan Novotný sr.Subject(s): Environmental interactions, Sports Studies
Published by: Masarykova univerzita nakladatelství
Keywords: snow temperature; cross country skiing; infrared thermography;
Summary/Abstract: The effect of ski friction on the snow temperature increasing is known. The made water film facilitates the ski moving. The aim of our pilot study was to ascertain a capability of the dynamic infrared thermography to register the quick thermal changes at determined point of snow before and after ski moving. We monitored snow after immediately before and after 12 runs of recreational cross-country skier by dynamic infrared thermography FLIR SC620 with image frequency 30 Hz. We found significant increasing of snow temperature (by 0,2 to 1,7°C), linear dependence of snow warming on ski moving speed, and temperature increasing after ski waxing.
Journal: Studia sportiva
- Issue Year: 4/2010
- Issue No: 2
- Page Range: 25-32
- Page Count: 8
- Language: Czech