The NEW SUMMER SIMMER INDEX - A COMFORT INDEX FOR THE NEW MILLENNIUM  John W. Pepi * Maynard, MA (page 6)
	base chosen to develop the new SSI.  Interestingly, this reformulation gives remarkably identical results, being within one degree F of the new SSI  at all temperature and humidity levels, including those at the extremes. Thus, it would appear that the new SSI is confirmed by two independent models. In summary, while the HI is physiologically sound, it relates to an average environment. While  ET* is physiologically and scientifically sound and confirmed by human testing, it  relates to a variable moisture environment.  The new SSI, derived from ET*, meets all scientific and subjective requirements and relates to a dry environment.  As such,  it is the only index that meets all five requirements for a meaningful index;  namely, it: 1)    is physiologically sound 2)    is backed by objective scientific laws 3)    is confirmed by subjective testing 4)    is an indicator of comfort and stress, not simply thermal sensation, and 5)    relates to a dry environment   7.0 CONCLUSION The new Summer Simmer Index is the only index which uses results of proven physiological models and human tests over the past 75 years and relates numerical values of temperature-humidity equivalent temperatures to a dry environment for general public acceptance.  By doing so the index, like wind chill, provides a meaningful and realistic temperature equivalent that can not only be used as an indication as to how hot it feels, but also as a readily identifiable warning for individuals subject to the physiological dangers of heat exposure. 8.0 REFERENCES ASHRAE, Handbook of Fundamentals, 1972, Chapter 7, New York Gagge, A.P., Stolwijk, A.J., and Nishi, Y: An effective temperature scale based on a simple model of human physiological regulatory response, ASHRAE Transactions, Vol 77, 1971 *Corresponding author address: John W. Pepi, 4 Nick Lane, Maynard, MA 01754; E-mail: information@ssi		Hevener, O.F.: All about humiture, Weatherwise, April, 1959 Houghten, F. C., and Yaglou, C. P.: Determining lines of equal comfort.  ASHVE Transactions, Vol 29, 1923 Lally, V., and Watson, B.: Humiture revisited, Weatherwise , Vol 13, No. 6, December, 1960 Pepi, J.: The summer simmer index,  Weatherwise, Vol 40, No. 3, June, 1987 Rohles,F., Hayter, R. and Milliken, G.:  Effective temperature( ET*) as a predictor of thermal comfort , ASHRAE   Transactions, 1975, 81 (II), 1975 Steadman, R. G., The assessment of sultriness, part I: A temperature-humidity  index based on human physiology and clothing science, J. Appl. Meteor., Vol. 18, July, 1979 Thom, E.C., and Bosen, J.F., The    discomfort index, Weatherwise, April, 1959 Yaglou, C. P. : A method of improving the effective temperature index, ASHVE     Transactions, Vol 53, 1947   9.0 COPYRIGHT This paper has been copyrighted © 1999. John W. Pepi.  All rights reserved.  Intended for personal use only. This paper may not be reproduced, in whole or in part, without the expressed written consent of the author.