WIND ENERGY SYSTEMS - Cd3wd

Chapter 2—Wind Characteristics 2–63
Figure 25: Isotach 0.50 quantiles in meters per second. Annual extreme mile (1.6km) 10 m
above ground; 2-year mean recurrence interval. (After [23].)
2. Locate several of the world’s major deserts on a map. List at least five of these deserts
with an estimate of the range of latitude. (For example, the American Southwest extends
from about 25 o N Latitude to about 37 o N Latitude.) Compare with Fig. 5.
3. What is the nominal air pressure in kPa as predicted by the U. S. Standard Atmosphere
curve at
(a) Dodge City, elevation 760 m.
(b) Denver, elevation 1600 m.
(c) Pike’s Peak, elevation 4300 m.
4. If the temperature at ground level is 30 o C, at what altitude would you reach the freezing
point of water in an atmosphere where the lapse rate is adiabatic?
5. Dodge City is at an elevation of 760 m above sea level. A parcel of air 1500 m above
Dodge City (2260 m above sea level) descends adiabatically to ground level. If its initial
temperature is 0 o C, what is its final temperature?
Wind Energy Systems by Dr. Gary L. Johnson November 20, 2001