Geosystems: An Introduction to Physical Geography, 11th edition

Published by Pearson (May 4, 2026) © 2027
  • Robert W. Christopherson
  • Ginger H. Birkeland

Title overview

For courses in physical geography.

A practical introduction, from atmosphere to biosphere

Geosystems: An Introduction to Physical Geography covers the essentials of physical geography by Earth systems topics as they occur naturally: atmosphere, hydrosphere, lithosphere and biosphere. Known for meticulous attention to detail, accuracy, and currency, the authors guide students through principles and concepts using real-world applications.

The 11th Edition updates content, clarifies and streamlines organization with numbered chapter sections, engages students with new Earth Systems Connections and Interactive Mapping learning activities, and features many new photos and illustrations.

Hallmark features of this title

  • Geosystems Now chapter-opening case studies draw students into chapter concepts by discussing a related current application.
  • Focus Study essays present in-depth discussions of key topics and include critical-thinking questions.
  • GeoReports sections present interesting factoids, examples, applications and student action items related to the narrative.
  • Geosystems in Action explore key chapter concepts and physical processes with a focus on visualization and structured active learning.
  • The Human Denominator explores the interconnections between humans and Earth's physical environment and critical 21st-century issues.
  • Key Learning Concepts Review at the end of each chapter reinforces the key learning concepts, providing summaries and key terms.

New and updated features of this title

  • Revised Key Learning Objectives (formerly Key Learning Concepts) start each chapter to help students prioritize learning goals. Main section titles are now re-numbered for clarity (1.2, 1.3 etc.)
  • New and updated Work It Out activities at the end of each section: These questions and exercises enable students to demonstrate their understanding and practice critical thinking, conceptual reasoning or quantitative reasoning.
  • New Earth Systems Connections questions at the end of each chapter help students summarize the chapter-opening systems diagrams (a hallmark of this text). The new questions promote systems thinking as each chapter topic concludes.
  • New Interactive Mapping activities at the end of each chapter explore topics using the new and expanded MapMaster 3 interactive maps in the Mastering Geography Student Study Area.
  • 21 updated or new Focus Studies: This popular feature explores relevant applied topics in greater depth. 11 new Focus Study topics include Changes in Seasonal Patterns Affect Arctic Caribou (Ch. 2); U.S. Air Pollution Worsens with Climate Change (Ch. 3); Sliding Rocks on Death Valley’s Racetrack Playa (Ch.15); Antarctica’s Ice Shelves (Ch.17); and more.
  • New and updated Geospatial Analysis exercises at the end of each chapter: These mini-lab activities encourage students to explore online science tools and data sets (from sources such as NASA, USGS, and NOAA) to perform critical geospatial data analysis.

Key features

Features of Mastering Geography for the 11th Edition

  • The new AI-powered study tool draws on Pearson content to turn homework mistakes into teachable moments.
  • Assignable media and activities include:
    • Geoscience Animations, videos, Mobile Field Trip videos, Project Condor Quadcopter videos, Encounter Physical Geography Google Earth explorations, and GIS-inspired MapMaster interactive maps
    • Hazard City context-rich problems, GeoTutor coaching activities on the toughest topics in geography, end-of-chapter questions and exercises, reading quizzes, and Test Bank questions.
  • Dynamic Study Modules pose a handful of questions and then respond to each student’s progress in real time. Learners deepen their grasp of concepts as they go. The text-specific Study Area offers students additional study resources.
  • Learning Catalytics is an interactive student response tool that lets you quiz, poll and engage with groups of students in real time. Students respond on their devices.

Table of contents

  • 1. Essentials of Geography

I. THE ENERGY-ATMOSPHERE SYSTEM

  • 2. Solar Energy to Earth and the Seasons
  • 3. Earth's Atmosphere
  • 4. Atmospheric Energy and Global Temperatures
  • 5. Atmospheric and Oceanic Circulations

II. THE WATER, WEATHER, AND CLIMATE SYSTEMS

  • 6. Water and Atmospheric Moisture
  • 7. Weather
  • 8. Water Resources
  • 9. Earth's Climatic Regions
  • 10. Climate Change

III. THE EARTH-ATMOSPHERE INTERFACE

  • 11. The Dynamic Planet
  • 12. Tectonics, Earthquakes, and Volcanism
  • 13. Weathering, Karst Landscapes, and Mass Movement
  • 14. River Systems
  • 15. Eolian Processes and Arid Landscapes
  • 16. Oceans and Coastal Systems
  • 17. Glacial Landscapes and the Cryosphere

IV. SOILS, ECOSYSTEMS, AND BIOMES

  • 18. The Geography of Soils
  • 19. Ecosystem Essentials
  • 20. Terrestrial Biomes

APPENDICES

  • A. Maps in this Text and Topographic Maps
  • B. The Köppen Climate Classification System
  • C. Common Conversions

Author bios

About our authors

Robert W. Christopherson attended California State University - Chico for his undergraduate work and received his Masters in Geography from Miami University - Oxford, Ohio. Geosystems evolved out of his teaching notes and was his graduate thesis: this is his life's work. He founded the geography program of American River College faculty. Robert’s wife Bobbé is his principal photographer and has provided more than 300 exclusive photos for each of his books. Together they have completed 9 polar expeditions (most recently in spring 2010). They attended the 2004 Arctic Climate Impact Symposium in Reykjavik, Iceland to acquire photo and video coverage and research.

Robert is the recipient of numerous awards, including the 1998 and 2005 Text and Academic Authors Association Textbook Award for Geosystems and Elemental Geosystems, 4th Edition respectively. He was selected by American River College students as "Teacher of the Year" and received the American River College Patrons Award. Robert received the 1999 Distinguished Teaching Achievement Award from the National Council for Geographic Education and the Outstanding Educator Award from the California Geographical Society in 1997. The Text and Academic Authors Association presented him with its Presidents' Award in 2005. Amongst many other things, Robert has been deeply involved in the development of Pearson's Geoscience Animation Library, and he led the editorial board of Rand McNally's Goode's World Atlas, 22nd Edition.

Ginger H. Birkeland received her undergraduate degree from the University of Colorado, Boulder and her M.A. and PhD in Geography from Arizona State University, with a focus in fluvial geomorphology. She taught physical geography at Montana State University and summer field courses at the Indiana University Geologic Field Station in Montana. Ginger worked as a professional river guide for 17 years on the Colorado River in Grand Canyon, as well as on rivers in Australia and throughout the U.S. West. She also worked as a geomorphology consultant on several government-funded projects, including the Truckee River Recovery Plan in California and Nevada. She has worked as a coauthor with Robert Christopherson on Geosystems and Elemental Geosystems since 2010.

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