24.7 Climate

Figure 31 This postcard shows a warm coastal climate. Classifying How might a postcard for your town illustrate its climate?

A post card of palm trees on a sandy beach.

A friend from another state wants to visit you during school vacation. She's never been to your area, and wants to know what type of clothes to bring. Should she bring her heavy coat or her rain gear? How would you answer her? You could look outside to check the current weather, but that can change quickly. What your friend really needs to know is the typical weather for your area at that time of year. She needs to know about the climate, which is the long-term weather conditions of a place or region. Climate is a description of the pattern of weather over many years. It includes average weather conditions as well as how weather varies over time, rather than day-to-day changes in the condition of the atmosphere.

Classifying Climates

Scientists divide the world's climates into several different types. What is the climate like in your part of the world? To find out, look at the world map in Figure 32. The map is divided into six major climate groups: tropical, temperate marine, temperate continental, polar, dry, and highlands. One of the six major groups, the dry climates, is determined mainly by precipitation. Another group, the highland climates, is determined mainly by elevation. The four remaining groups are determined mostly on the basis of temperature. Scientists further divide the major climate groups into many different specific climates. It is important to realize, however, that this map is not static. It changes with changing global temperatures and patterns of precipitation.


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Table of Contents

Physical Science CHAPTER 1 Science Skills CHAPTER 2 Properties of Matter CHAPTER 3 States of Matter CHAPTER 4 Atomic Structure CHAPTER 5 The Periodic Table CHAPTER 6 Chemical Bonds CHAPTER 7 Chemical Reactions CHAPTER 8 Solutions, Acids, and Bases CHAPTER 9 Carbon Chemistry CHAPTER 10 Nuclear Chemistry CHAPTER 11 Motion CHAPTER 12 Forces and Motion CHAPTER 13 Forces in Fluids CHAPTER 14 Work, Power, and Machines CHAPTER 15 Energy CHAPTER 16 Thermal Energy and Heat CHAPTER 17 Mechanical Waves and Sound CHAPTER 18 The Electromagnetic Spectrum and Light CHAPTER 19 Optics CHAPTER 20 Electricity CHAPTER 21 Magnetism CHAPTER 22 Earth's Interior CHAPTER 23 Earth's Surface CHAPTER 24 Weather and Climate CHAPTER 25 The Solar System CHAPTER 26 Exploring the Universe Skills and Reference Handbook