Introduction

Introduces key scientific and technical concepts useful for understanding and working with the JVV Jr. imagery. The section currently contains information on GPS technology and its scientific applications. Additional information will be added on issues related to crustal deformation studies, etc.

Provides links to the following tools:

• The Jules Verne Voyager, Jr. developed by UNAVCO for the study of global-scale geodynamic processes. Users can choose from a variety of base maps (including "Face of the Earth" and "Earth at Night" satellite imagery, global topography, geoid, sea-floor age, strain rate and seismic hazard maps, and others), add a number of geographic and geophysical overlays (coastlines, political boundaries, rivers and lakes, earthquake and volcano locations, and stress axes, etc.), and then superimpose both observed and model velocity vectors representing a compilation of 2933 geodetic measurements from around the world. Users can also select from 21 frames of reference, allowing a visual representation of both 'absolute' plate motion (in a no-net rotation reference frame) and relative motion along all of the world's plate boundaries. Users can zoom among at least three map scales. Note that the JVV Jr. imagery is taken from the Jules Verne Voyager, another UNAVCO site.

• The EarthScope Voyager, Jr., an interactive map tool based on the North American continent designed to support student and public understanding of the EarthScope initiative, a bold undertaking funded to apply modern observational, analytical, and telecommunications technologies to investigate the structure and evolution of the North American continent and the physical processes controlling earthquakes and volcanic eruptions.
  
  The ESV, Jr. offers the same map and tool options as the JVV, Jr., and also has information related to the EarthScope project, for example, the locations of the US Array stations, etc.

• "Did You Know" in the ESV, Jr., which provides scientific information and questions to explore about some of the study areas in the EarthScope project.
  
  
• Calculators and other tools required for the curriculum activities.

Introduces students and teachers to fundamental concepts in Earth Science that can be effectively studied using the JVV Jr. The first module is on plate tectonics; additional modules will cover such topics as intraplate deformation, deep earth dynamics, plate rigidity, polar studies and glaciology, plate boundary zone dynamics, tectonic geomorphology, and volcano studies. Designed for use in high school and undergraduate Earth science courses.

Defines terms used throughout the site.

Contact us if you have questions about the site, suggestions for changes, or curriculum activities developed around the JVV Jr. imagery that you would like to share.