A Comparative Study on the Windchill Indices

체감온도이론의 비교 연구

  • Park, Jeon-Hwan (Department of Environment Science, Korea Military Academy) ;
  • Han, Uk (Department of Environment Science, Korea Military Academy) ;
  • Park, Rae-Seol (Department of Environment Science, Korea Military Academy)
  • 박정환 (육군사관학교 환경학과) ;
  • 한욱 (육군사관학교 환경학과) ;
  • 박래설 (육군사관학교 환경학과)
  • Published : 2002.12.31

Abstract

The concept of sensible temperature in winter is an attempt to quantify the sensation of cold by dry-bulb temperature combined with wind speed. Siple-Passel’s windchill equivalent temperature originated in experiments that are not conformable to various human conditions. Therefore, many investigators have found the flaws which are listed. Steadman’s model is based on the concept of thermal equilibrium and more sound and more representative of human conditions. But no classifications exist for Steadman’s windchill equivalent temperature, yet. The JAG/TI-model which was developed by US and Canada is more accurate, easy to understand and reflects human beings by conducting experiments using human volunteers but didn't take into account solar radiation, wet condition and physical state of the individual. Because of individual differences in people’s age, activity, health, metabolic rate, etc., no experimental evidence exists to suggest whether Siple-Passel’s, Steadman’s and JAG/TI-model’s windchill equivalent temperature is more applicable to the majority of people. Therefore we need the windchill model which is best applicable to Korean Army.

겨울철 체감온도는 온도와 바람에 의해 느끼는 추위의 정도를 정량화한 것이다. Siple-Passel은 최초로 바람에 의한 냉각효과를 이용하여 바람냉각상당온도를 제시하였으나 일반인에게 적합하지 않기 때문에 많은 문제점이 지적되어 왔으므로 이 논문에서 결점들을 비교 분석하였다. Steadman 모델은 열평형(thermal equilibrium) 이론에 근거하여 보다 현실적이지만 추위의 정도를 구분하여 설명하지 못하였다. 최근 캐나다와 미국에서 개발한 JAG/TI-모델은 보다 정확하고 이해하기 쉬우며 인체실험을 반영하였으나 태양복사, 습도, 개인의 신체적 차이 등은 고려하지 않았다. 나이, 사람의 활동, 건강, 신진대사 등이 다르기 때문에 어느 모델이 사람에게 적합한지는 실험 비교가 필요하다. 따라서 우리의 야전환경에 적합한 체감온도모델의 개발이 요구된다.

Keywords

References

  1. Bulletin of the American Meteorological Society v.80 no.9 A new approach to an accurate windchill factor Bluestein, M.;Zecher, J. https://doi.org/10.1175/1520-0477(1999)080<1893:ANATAA>2.0.CO;2
  2. Canada Department of Transport Technical Memorandum TEC 718 The vertical wind profile of monthly mean winds over the Prairies Buckler, S. J.
  3. Man in a cold environment, London Burton, A. C.;Edholm, O. G.
  4. Bulletin of the American Meteorological Society v.29 Windchill Court, A.
  5. The Meteorological Magazine v.116 no.1374 Windchill indices-a review Dixon, J. C.;Prior, M. J.
  6. Review of research on military problems in cold regions, TDR-64-28 The effect of air movement on atmospheric cooling power Eagan, C.;Kolb, C.(ed.);Holstrom, F.(ed.)
  7. Science v.94 A practical system of units for the description of the heat exchange of man with his environment Gagge, A. P.;Burton, A. C.;Bazett, H. C. https://doi.org/10.1126/science.94.2445.428
  8. Bulletin of the American Meteorological Society v.74 Windchill errors Kessler, E.
  9. Environment Canada Meteorological Service of Canada Technical Report, En56-152/2000 Windchill indices: A review of science, current application and future directions for Canada Maarouf, A.;Bitzos, M.
  10. Proceedings of the 18th Conference on Interactive Information Processing System(IIPS) Review of the federal interagency process used to select the new windchill temperature (WCT) index, Preprints Nelson, C. A.;Tew, M.;Phetteplace, G.;Schwerdt, R.;Maarouf, A.;Osczevski, R.;Bluestein, M.;Shaykewich, J.;Smarsh, D.;Derby, J. C.;Petty, R. C.;Berger, M.;Quayle, R. G.;Santee, W. R.;Olenic, E.;Lupo, A. R.;Browne, K.
  11. Arctic v.48 no.4 The basis of windchill Osczevski, R. J.
  12. Weather and Forcasting v.13 The Steadman windchill: An improvement over present scales Quayle, R. G.;Steadman, R. G. https://doi.org/10.1175/1520-0434(1998)013<1187:TSWCAI>2.0.CO;2
  13. Proceedings of the American Philosophical Society v.89 no.1 Measurements of dry atmospheric cooling in subfreezing temperatures Siple, P. A.;Passel, C. F.
  14. Journal of Applied Meteorology v.10 Indices of windchill of clothed persons Steadman, R. G. https://doi.org/10.1175/1520-0450(1971)010<0674:IOWOCP>2.0.CO;2
  15. Journal of Applied Meteorology v.18 The assessment of sultriness Steadman, R. G. https://doi.org/10.1175/1520-0450(1979)018<0861:TAOSPI>2.0.CO;2
  16. Journal of Applied Meteorology v.23 no.12 A universal scale of apparent temperature Steadman, R. G. https://doi.org/10.1175/1520-0450(1984)023<1674:AUSOAT>2.0.CO;2
  17. Australian Meteorology Magazine v.43 Norms of apparent temperature in Australia Steadman, R. G.
  18. Amateur Association of American Geographers v.56 Physiological climates of the conterminous United States; A bioclimatic classification based on man Terjung, W. H. https://doi.org/10.1111/j.1467-8306.1966.tb00549.x
  19. Sustaining health & performance in cold weather operations U. S. Army