Weather and Climate

3. a period of below-average precipitation
8. an increase in the average temperature of Earth's surface
9. an area of low rainfall on the downwind slope of a mountain
10. a specialized type of radar that can detect precipitation as well as the movement of small particles, which can be used to approximate wind speed
12. a description of a set of weather measurements made on Earth's surface
13. another name for southern oscillation, it is the combined ocean and atmospheric cycle that results in weakened trade winds across the Pacific Ocean
14. the removal of large areas of forests for human purposes
15. a period of time when a large portion of Earth's surface is covered by glaciers
17. an intense tropical storm with winds exceeding 87 km/h
19. detailed computer programs that solve a set of complex mathematical formulas
20. a violent, whirling column of air in contact with the ground
21. a violent winter storm characterized by freezing temperatures, strong winds, and blowing snow
22. the long-term average weather conditions that occur in a particular region
23. a large body of circulating air with high pressure at its center and lower pressure outside of the system

1. a description of wind, temperature, and humidity conditions above Earth's surface
2. a boundary between two air masses
4. a warm period that occurs during an ice age or between ice ages
5. a large body of circulating air with low pressure at its center and higher pressure outside of the system
6. a wind circulation pattern that changes direction with the seasons
7. a large area of air that has uniform temperature, humidity, and pressure
8. a set of complex equations used to predict future climates
11. a gas in the atmosphere that absorbs Earth's outgoing infrared radiation
16. a localized climate that is different from the climate of the larger area
18. lines that connect all places on a map where pressure has the same value