Downloaded from https://www.everyspec.com MIL-HDBK-310 40.1.7 High Relative Humidity with Low Temperature. The data and discussion in 5.1.7 are considered complete. 40.1.8 Low Relative Humidity with High Temperature. This combination occurs with the high temperature cycle discussed in reference (4) in 40.1.1. 40.1.9 Low Relative Humidity with Low Temperature. Not available. 40.1.10 Wind Speed. All of the wind speed data, including the highest recorded extremes, were taken from the following: (15) Sissenwine, N., Tattelman, P.1., Grantham, D.D., and Gringorten, 1.1.
(1973) Extreme Wind Speeds, Gustiness and Variations with Height for MIL-STD-210B, AFCRL-TR-73-0560, AF Surveys in Geophysics No. 273, AD774044. The coefficients used in the method for estimating the variation of wind with height above the surface recommended in this report resulted in the problems discussed in 5.1.10.2. Nevertheless, the section on the behavior of extreme wind speeds and gusts with height provides useful information that may be pertinent in the design of surface structures sensitive to wind at large heights above the ground. More information on surface wind gustiness is available from the following: (16) Tattelman, P.
(1975) Surface Gustiness and Wind Speed Range as a Function of Time Interval and Mean Wind Speed, Jour. of Appl. Meteor., Vol. 14, No. 7, October 1975, pp 1271-1276. 40.1.11 Rainfall Rate. Worldwide spatial distributions of 1-min rainfall rates occurring 0.01, 0.05, 0.10, 0.50 and 1.0 percent of the time during mid-season months and also for the worst month are available from the following two publications: (17) Tattelman, P. and Grantham, D.D. (1983) Northern Hemisphere Atlas of 1-Minute Rainfall Rates, AFGL- TR-83-0267, Air Force Surveys in Geophysics No. 444, ADA145411. (18) Tattelman, P. and Grantham, D.D.
(1983) Southern Hemisphere Atlas of 1-Minute Rainfall Rates, AFGL- TR-83-0285, Air Force Surveys in Geophysics No. 443, ADA145421. These were used to determine the most severe areas of the world for intense rainfall. Percentile values of rainfall rate for these areas, and associated drop size distributions for these and the record 1 and 42 min rates were taken from the following: (19) Tattelman, P., and Willis, P.T. (1985) Model Vertical Profiles of Extreme Rainfall Rate, Liquid Water Content, and Drop-Size Distribution, AFGL-TR-85-0200, Environmental Research Papers, No. 928, ADA164424. Rainfall amounts provided for the long-term extremes were taken from:
(20) Lenhard, R.W., and Sissenwine, N. (1973) Extremes of 1, 12, and 24-Hour Rain for MIL-STD-210B, AFCRL-TR-73-0329, Air Force Survey in Geophysics No. 266, AD766210. 40.1.12 Blowing Snow. Information for this climatic condition, including highest recorded values, was taken from: (21) Mellor M. (1965) Blowing Snow, Cold Regions Science and Engineering, Part III, Section A3c, U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, N.H. 104