Downloaded from https://www.everyspec.com 2–2. Summary of daily cycles. Table 2-1 is a summary table of the daily extremes (highest and lowest values in a 24-hour cycle) of temperature, solar radiation, and relative humidity for the eight daily cycles cited in this regulation. Details of each cycle, and other atmospheric elements (hydrometers, wind, blowing sand, blowing dust, ozone, and atmospheric pressure), are given in Section II. In most cases, extremes of these other elements do not occur at the same time as the extremes of temperature or humidity. However, with certain severe cold and cold phenomena, two or more elements may occur at the same time.
For example, ice, fog, and low temperatures. Figure TABLE 2-1. Summary of Temperature, Solar Radiation, and Relative Humidity Daily Cycles. 7 AR 70–38 • 15 September 1979