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This tutorial introduces students to the concept of navigating with a topographic map and compass. Topics include the features and symbols used on U. S. Geological Survey (USGS) maps, the use of scale to represent distance, and how to determine direction with a magnetic compass. There is also information on the scales and areas represented on various USGS maps and on how to compensate for magnetic ... Full description.
Grade level: Middle (6-8), High (9-12), Informal
Resource type: Tutorial
Subject: Physical geography
 
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This resource, published by a commercial producer of GPS equipment, introduces students to the concept of Global Positioning Systems (GPS). Topics include how GPS works and how accurate it is. There is also a brief description of the satellite network that makes the system work, and some sources of error in the GPS signal. Full description.
Grade level: General public
Resource type: Ref. material
Subject: Physical geography, Technology
 
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This glossary provides definitions for terms used in Global Positioning Systems (GPS) technology. Full description.
Grade level: General public
Resource type: Glossary
Subject: Physical geography, Technology
 
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This glossary provides definitions for terms used in Global Positioning Systems (GPS) technology. Full description.
Grade level: General public
Resource type: Glossary
Subject: Physical geography, Technology
 
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This bibliography, intended for more advanced users, is a compilation of peer-reviewed articles published in 2006 describing original research with citations on Global Positioning Systems (GPS) and Global Satellite Navigation Systems (GNSS) Full description.
Grade level: College (13-14), College (15-16), Graduate / Professional
Resource type: Index / Bibliography
Subject: Physical geography, Technology
 
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This animation explains the code-phase and carrier-phase portions of the signal that is used for timing in Global Positioning Systems, and their uses. It is accompanied by a written explanation. Full description.
Grade level: High (9-12), College (13-14)
Resource type: Visualization - scientific, Ref. material, Commercial portal
Subject: Physical geography, Technology
 
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This reference provides an overview of the United States Naval Observatory's (USNO) NAVSTAR Global Positioning System (GPS). Topics include GPS signal characteristics, selective availability, anti-spoofing, GPS system segments, GPS system time, and GPS time transfer. Full description.
Grade level: College (13-14), College (15-16), Graduate / Professional
Resource type: Ref. material
Subject: Physical geography, Technology
 
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This reference provides an introduction to the science of geodesy. Topics include explanations of geodesy and geomatics, some of their applications, and their relationships to other sciences. Links to additional information are included. Full description.
Grade level: Middle (6-8), High (9-12), College (13-14)
Resource type: Ref. material
Subject: Physical geography, Geophysics
 
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This online activity teaches users how to use a compass and topographic map to find their way to a destination. Full description.
Grade level: High (9-12), College (13-14), Informal, General public
Resource type: Classroom activity, Field activity, Policy / Procedure
Subject: Physical geography
 
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This resource discusses Differential Global Positioning Systems (DGPS), and why they were developed. It provides a brief history of GPS and the selective availability mode which was formerly used to degrade accuracy for non-military purposes. Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Ref. material, Commercial portal
Subject: Physical geography, Geophysics, Technology
 
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