Table Of ContentWORLD PHYSICAL MAP Highest Barometric Pressure Highest Dew Point Temperature Largest Freshwater
Agata, Siberia Dhahran, Saudi Arabia Lake by Volume
ARCTIC OCEAN December 31, 1968 July 8, 2003 Lake Baikal
World’s Greatest 24-hr Largest Lake by Surface Area
1083.8 mb (32.03 Hg) 35°C (95°F) 23,600 km (5,700 mi )
Temperature Change Lake Superior
Greenland
Loma, Montana 82,000 km 31,652 
57°C (-48°C to 9°C)
103°F (-54°F to 49°F)
Highest Elevation
N O R T H Mt. Everest
8,848 m (29,029 ft)
A M E R I C A
Largest Hailstone
Vivian, South Dakota E U R A S I A
July 23, 2010
20 cm (8 in.) diameter Lowest Barometric Pressure
Typhoon Tip
October 12, 1979
870 mb (25.63 Hg)
Highest Temperature
Death Valley
July 10, 1913
56.7°C (134.1°C)
AT L A N T I C
Greatest Rainfall in One Year
O C E A N Cherrapunji, India
August 8, 1860
Lowest Land Elevation 26.5 m (86.8 ft)
Dead Sea
A F R I C A -424 m (-1,391 ft)
Highest Waterfall Greatest Ocean Depth
Angel Falls, Venezuela Challenger Deep
979 m (3,212 ft) Longest River -10,971 m (-35,994 ft)
Nile River
PA C I F I C 6,671 km (4,145 mi)
O C E A N
PA C I F I C
S O U T H
O C E A N
A M E R I C A
I N D I A N
Largest River by Discharge O C E A N Fastest Wind
Amazon River Barrow Island, Australia
209,000 m /sec (273,790 ft /sec) April 10, 1996
Highest Frequency of A U S T R A L I A 408 km/h (253 mph)
Thunderstorm Days
Kampala, Uganda
242 days per year
Lowest Average 
Annual Precipitation
Arica, Chile
0.08 cm (0.03 in. )  
Lowest Temperature
Vostok, Antarctica
July 21, 1983
S O U T H E R N   O C E A N -89.2°C (-128.6°F)
Red dots show the places
visited in this book
A N T A R C T I C A
Gervais_endp_inside_front_cov_hr_pv2.0.1.indd   2 12/4/14   5:48 PM
WORLD PHYSICAL MAP Highest Barometric Pressure Highest Dew Point Temperature Largest Freshwater
Agata, Siberia Dhahran, Saudi Arabia Lake by Volume
ARCTIC OCEAN December 31, 1968 July 8, 2003 Lake Baikal
World’s Greatest 24-hr Largest Lake by Surface Area
1083.8 mb (32.03 Hg) 35°C (95°F) 23,600 km (5,700 mi )
Temperature Change Lake Superior
Greenland
Loma, Montana 82,000 km 31,652 
57°C (-48°C to 9°C)
103°F (-54°F to 49°F)
Highest Elevation
N O R T H Mt. Everest
8,848 m (29,029 ft)
A M E R I C A
Largest Hailstone
Vivian, South Dakota E U R A S I A
July 23, 2010
20 cm (8 in.) diameter Lowest Barometric Pressure
Typhoon Tip
October 12, 1979
870 mb (25.63 Hg)
Highest Temperature
Death Valley
July 10, 1913
56.7°C (134.1°C)
AT L A N T I C
Greatest Rainfall in One Year
O C E A N Cherrapunji, India
August 8, 1860
Lowest Land Elevation 26.5 m (86.8 ft)
Dead Sea
A F R I C A -424 m (-1,391 ft)
Highest Waterfall Greatest Ocean Depth
Angel Falls, Venezuela Challenger Deep
979 m (3,212 ft) Longest River -10,971 m (-35,994 ft)
Nile River
PA C I F I C 6,671 km (4,145 mi)
O C E A N
PA C I F I C
S O U T H
O C E A N
A M E R I C A
I N D I A N
Largest River by Discharge O C E A N Fastest Wind
Amazon River Barrow Island, Australia
209,000 m /sec (273,790 ft /sec) April 10, 1996
Highest Frequency of A U S T R A L I A 408 km/h (253 mph)
Thunderstorm Days
Kampala, Uganda
242 days per year
Lowest Average 
Annual Precipitation
Arica, Chile
0.08 cm (0.03 in. )  
Lowest Temperature
Vostok, Antarctica
July 21, 1983
S O U T H E R N   O C E A N -89.2°C (-128.6°F)
Red dots show the places
visited in this book
A N T A R C T I C A
Gervais_endp_inside_front_cov_hr_pv2.0.1.indd   3 12/4/14   5:48 PM
Living
Physical
 Geography
  
BRUCE GERVAIS
CALIFORNIA STATE UNIVERSITY, SACRAMENTO
Gervais_FM_i-xxviii+1_hr3_pv3.0.1.indd   1 12/4/14   5:46 PM
Vice President, Editorial: Charles Linsmeier
Associate Publisher: Steven Rigolosi  
Marketing Manager: Taryn Burns
Developmental Editor: Donald Gecewicz
Media Editor: Lukia Kliossis   
Market Development: Stephanie Ellis and Burrston House, Ltd.
Photo Editor: Sheena Goldstein
Photo Researcher: Jerry Marshall
Art Director: Diana Blume 
Cover and Text Designer: Tom Carling, Carling Design Inc.
Project Editor: Enrico Bruno
Managing Editor: Lisa Kinne  
Illustrations: Precision Graphics; Mapping Specialists
Art Manager: Matthew McAdams
Production Coordinator: Susan Wein
Composition: Tom Carling; codeMantra
Printing and Binding: Quad/Graphics  
Cover Art: Tennessee Cove, Marin Headlands, © 2013 by Tom Killion 
Library of Congress Control Number: 2014945391
ISBN-13: 978-1-4641-0664-4
ISBN-10: 1-4641-0664-9
© 2015 by W. H. Freeman and Company
All rights reserved
Printed in the United States of America
First printing
W. H. Freeman and Company                                      
41 Madison Avenue                                       
New York, NY 10010                                                      
www.whfreeman.com
Gervais_FM_i-xxviii+1_hr3_pv3.0.1.indd   2 12/4/14   5:46 PM
For Nancy, Katherine, and Natalie
Gervais_FM_i-xxviii+1_hr3_pv3.0.1.indd   3 12/4/14   5:46 PM
Chapter GT, icon page 27: © Jumper/Photodisc/Getty Images; Chapter 1, icon page 50: NASA Ozone Watch; Chapter 2, icon page 84: © Harald Sund/Stockbyte/Getty Images; 
Chapter 3, icon page 116: © Erkki Makkonen/E+/Getty Images; Chapter 4, icon page 148: © Frank Krahmer/Digital Vision/Getty Images; Chapter 5, icon page 183: Image Science 
and Analysis Laboratory, NASA-Johnson Space Center (ISS007-E-14887); Chapter 6, icon page 214: Bruce Gervais; Chapter 7, icon page 247: © Ethan Daniels/Shutterstock.com; 
Chapter 8, icon page 285: © Nicholas James McCollum/Flickr Open/Getty Images; Chapter 9, icon page 318: © David Palmer/E+/Getty Images; Chapter 10, icon page 351: © 2011 
Ferdi Rizkiyanto; Chapter 11, icon page 377: © Jason Reed/Photodisc/Getty Images; Chapter 12, icon page 409: Bartosz Hadyniak/Getty Images; Chapter 13, icon page 434: © Jon 
Mullen/E+/Getty Images; Chapter 14, icon page 468: © Stocktrek Images/Getty Images; Chapter 15, icon page 500: fotoVoyager/Getty Images; Chapter 16, icon page 534: U.S. Dept. 
of the Interior/Bureau of Reclamation; Chapter 17, icon page 568: NASA World Wind using data from NASA’s Earth Observatory; Chapter 18, icon page 596: © David Gomez/E+/
Getty Images; Chapter 19, icon page 625: Dave & Les Jacobs/Blend Images/Getty Images
Gervais_FM_i-xxviii+1_hr4_pv3.0.1.indd   4 12/10/14   12:49 PM
BRIEF CONTENTS v
Brief Contents
Contents	 vi
Preface	 xvi
The Geographer’s Toolkit.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
P	 ART	 I	 ATMOSPHERIC	SYSTEMS:	Weather	and	Climate
CHAPTER  1  Portrait of the Atmosphere. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CHAPTER  2  Seasons and Solar Energy.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
CHAPTER  3  Water in the Atmosphere.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
CHAPTER  4  Atmospheric Circulation and Wind Systems. . . . . . . . . . . . . . . . . . . . . . . . . . 124
CHAPTER  5  The Restless Sky: Storm Systems and El Niño. . . . . . . . . . . . . . . . . . . . . . . 158
CHAPTER  6  The Changing Climate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
P	 ART	 II	 THE	BIOSPHERE	AND	THE	GEOGRAPHY	OF	LIFE
CHAPTER  7  Patterns of Life: Biogeography.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
CHAPTER  8  Climate and Life: Biomes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
CHAPTER  9  Soil and Water Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
CHAPTER 10  The Living Hydrosphere: Ocean Ecosystems.. . . . . . . . . . . . . . . . . . . . . . . . . 326
P	 ART	III	 TECTONIC	SYSTEMS:	Building	the	Lithosphere
CHAPTER  11  Earth History, Earth Interior.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
CHAPTER  12  Drifting Continents: Plate Tectonics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384
CHAPTER  13  Building the Crust with Rocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
CHAPTER 14  Geohazards: Volcanoes and Earthquakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
P	 ART	IV	 EROSION	AND	DEPOSITION:	Sculpting	Earth’s	Surface
CHAPTER  15  Weathering and Mass Movement.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478
CHAPTER  16  Flowing Water: Fluvial Systems.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508
CHAPTER  17  The Work of Ice: The Cryosphere and Glacial Landforms.. . . . . . . . . . . 544
CHAPTER 18  Water, Wind, and Time: Desert Landforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . 578
CHAPTER  19  The Work of Waves: Coastal Landforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 606
Appendices	 A-1
Glossary	 G-1
Further	Readings. FR-1
Indices	 I-1
Gervais_FM_i-xxviii+1_hr3_pv3.0.1.indd   5 12/4/14   5:46 PM
vi CONTENTS
PART	I
Contents ATMOSPHERIC	SYSTEMS:		
Preface	 xvi Weather	and	Climate
The Geographer’s Toolkit  2 CHAPTER 1
G	 T.1	 Welcome to Physical Geography!  4 Portrait of the Atmosphere  34
What Is Physical Geography?  4 THE HUMAN SPHERE: Wyoming’s.Air.Pollution.Problem. 36
Scales of Inquiry  5
• Spatial Scale: Perspective in Space  6 	 1.1	 Composition of the Atmosphere  37
• Temporal Scale: Time as a Perspective  7 Gases in the Atmosphere  37
About the Metric System  7 Gas Sources and Sinks  37
Aerosols in the Atmosphere  38
G	 T.2	The Physical Earth  8
Matter and Energy  8	 1.2	 The Weight of Air:  
Earth’s Shape  8 Atmospheric Pressure  38
• Rotation  10  • Relief and Gravitation  10 Air Pressure  38
Earth Systems  10 Air Density and Pressure  39
• The Atmosphere  10  • The Biosphere  11  
• The Lithosphere  11  • The Hydrosphere  11 Measuring Air Pressure  39
The Structure of Living Physical Geography  11	 1.3	 The Layered Atmosphere  40
•
• Part II: :A Tthmeo Bsipohseprhice rSey asntedm tsh:e W Geeaotghrearp ahnyd o Cf lLimifea te13  12   Layers Based on Temperature  40
• Part III: Tectonic Systems: Building the Lithosphere  13   The Weather Layer: The Troposphere  41
• Part IV: Erosion and Deposition: Sculpting Earth’s Surface  14 A Protective Shield: The Stratosphere  43
G	 T.3	Mapping Earth  15 The Mesosphere and Thermosphere  44
The Geographic Grid  16 The Ionosphere: Nature’s Light Show  44
• Latitude  16  • Longitude  16  • Using the Geographic Grid  18	 1.4	 Air Pollution  45
Maps  19 Primary Pollutants  45
Map Scale: How Far Is It?  20 • Carbon Monoxide  45  • Sulfur Dioxide  46   
• Types of Map Scales  20  • Lines on the Map: Contour Lines  22 • Nitrogen Dioxide  46  • Volatile Organic Compounds  47
G	 T.4	Imaging Earth  23 Secondary Pollutants  47
Satellite  Imagery  23 Particulate Matter  47
Radar and Sonar  25 Factors That Affect Air Pollutant Concentrations  48
Geographic Information Systems  26 The Clean Air Act  48
G	 T.5	 GEOGRAPHIC PERSPECTIVES The Scientifc Method and 	 1.5	 GEOGRAPHIC PERSPECTIVES Refrigerators and Life  
Easter Island  27 on Earth  50
Easter Island: The Scientifc Method Applied  27 A Landmark Paper and an International Protocol  51
• 1. Observation: Stone Statues  27  • 2. Question: How Were  Effects of a Thinning Ozonosphere  52
the Statues Moved across the Island?  28  • 3. Collect Data:  • Human Health  52  • Plants  53
HPoylpleonth  2e8si s: •L o4g.  HRyoplloetrhse Dsois :W Lorgk  R2o8ll er•s 62. 8F ur•t h5e. rT eInsqt utihrey :  A Crisis Averted  53
Collapse of Society  29 CHAPTER 1 Exploring with Google Earth  54
How Is a Hypothesis Different from a Theory?  29
CHAPTER 1 Study Guide  55
THE GEOGRAPHER’S TOOLKIT Study Guide  30
Gervais_FM_i-xxviii+1_hr3_pv3.0.1.indd   6 12/4/14   5:46 PM
(Courtesy of Anthony Koppers, Seamount  
Catalog (http://earthref.org))
(© Andy Rouse/naturepl.com/NaturePL)
CONTENTS vii
Global Horizontal Irradiance (W/m2)
165 200 235
  CHAPTER 2 CHAPTER 3
Seasons and Solar Energy  58 Water in the Atmosphere  92
THE HUMAN SPHERE: People.and.the.Seasons. 60 THE HUMAN SPHERE: Evaporation.and.the.Great.Lakes. 94
	2.1	 The Four Seasons  61	 3.1	 The Hydrologic Cycle and Water  95
What Causes Seasons?  61 States of Water: Solid, Liquid, and Gas  95
Migration of the Subsolar Point  62 The Hydrologic  Cycle: Water on the Move  96
How Does Earth’s Tilt Affect Day Length?  64 Properties of Water  96
• Day Length on an Equinox  64  • Day Length on the December  Latent Heat of Water: Portable Solar Energy  97
Solstice  64  • Day Length on the June Solstice  65
	 3.2	 Atmospheric Humidity  99
	2.2	 Temperature and Heat  66
The Heat-Index Temperature  99
What Is Temperature?  66
The Many Names for Humidity  100
What Is Heat?  67
• Vapor Pressure  100  • Specifc Humidity  100  
How Heat Moves  67 • Relative Humidity  100  • The Dew Point  102
	 2.3	 Surface Temperature Patterns  68	 3.3	 Lifting Air: Atmospheric Stability  103
Average Annual Temperature Patterns  68 Rising Air is Cooling Air:  
• Elevation: Colder in the Mountains  69  • Latitude:  Colder near  The Adiabatic Process  104
the Poles  69
Forming Clouds: The Lifting  
Patterns of Seasonality  69 Condensation Level  105
• What Causes the Continental Effect?  70  • Ocean Currents and 
Three Scenarios for Atmospheric Stability  106
Seasonality  73  • Prevailing Wind and Seasonality  73
Four Ways to Lift Air and Form Clouds  107
	 2.4	 The Sun’s Radiant Energy  75 • Convective Uplift  107  • Orographic Uplift  107  
Photons and Wavelengths  75 • Frontal Uplift  107  • Convergent Uplift  108
Earth’s Important Wavelengths: Ultraviolet, Visible,  
	 3.4	 Cloud Types  108
and Infrared  76
• Ultraviolet Radiation  76  • Visible Radiation: Light  76   Cloud Classifcation  108
• Infrared Radiation  77 • Fog  111
	 2.5	 Earth’s Energy Budget  77	 3.5	 Precipitation: What Goes Up . . .  111
The Great Balancing Act  81 Making Rain: Collision and Coalescence  111
The Global Heat Engine  83 Making Snow: The Ice-Crystal Process  111
Four Types of Precipitation  113
	 2.6	 GEOGRAPHIC PERSPECTIVES The Rising Solar 
Hail Formation  113
Economy  84
The Goal: 15 Terawatts  84	 3.6	 GEOGRAPHIC PERSPECTIVES Clouds and Climate  116
The Decentralized Approach  85 Clouds and Temperature  116
The Centralized Approach  85 Cloud Feedbacks  117
• Stratus Clouds  117  • Cirrus Clouds  118
CHAPTER 2 Exploring with Google Earth  87
CHAPTER 3 Exploring with Google Earth  119
CHAPTER 2 Study Guide  88
CHAPTER 3 Study Guide  120
Gervais_FM_i-xxviii+1_hr3_pv3.0.1.indd   7 12/4/14   5:47 PM
(2014 3TIER by Vaisala) 
(Beyond/SuperStock)