# Data Sources and Tools

These sites provide on-line or downloadable tools for visualizing or manipulating data or datasets that can be used in the classroom.

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Measuring Depth to Bedrock Using Seismic Refraction part of IGUaNA:Teaching Materials:Measuring Depth to Bedrock Using Seismic Refraction
This module is designed to introduce students to geophysical concepts and related earth science principles to illustrate how geophysics can be used to inform engineering projects in an urban environment. Students ...

Locating Subsurface Features using Gravity and Magnetics part of IGUaNA:Teaching Materials:Locating Subsurface Features using Gravity and Magnetics
This module introduces students to the fundamentals of exploring the subsurface with gravity and magnetism. Unit 1 provides a scaffolded introduction to locating buried objects with gravity. Unit 2 explores the ...

Geoid Height Calculator part of Geodesy:Resources
The Geoid Height Calculator returns the geoid height at the latitude and longitude specified by the user. The geoid is one approximation of Earth's shape due to gravity, roughly coinciding with mean sea level. Because the inside of our planet is non-uniform, gravity is not constant at the surface. If Earth were completely covered in an ocean, the water would swell over gravity highs (where there is more mass below the surface) and depress in areas of gravity lows (where there is less mass below the surface). The geoid approximates this hypothetical ocean surface, representing a geopotential surface. To think of it another way, if we were able to walk on the geoid, we would experience a constant value of gravity.

Plate Motion Calculator part of Geodesy:Resources
The Plate Motion Calculator calculates tectonic plate motion at any location on Earth using one or more plate motion models.

GPS Velocity Viewer part of Geodesy:Resources
This interactive tool allows users to see GPS/GNSS-measured crustal motions around the globe in a wide range of reference frames. The default view shows horizontal motions in the North American reference frame but users can choose to add vertical motions, earthquakes epicenters, plate boundaries, volcanic centers, or other reference frames. The tool can also be used as an interface to learn GPS/GNSS station names and download time series data.

Module Overview for Instructors part of IGUaNA:Teaching Materials:Forensic Geophysics Using Ground Penetrating Radar
Pipes, Tree Roots or Unmarked Graves? Using Ground Penetrating Radar for Forensic Geophysics The Ground-Penetrating Radar module of IGUaNA is designed to expose students to geophysical concepts and societal ...

Module Overview for Instructors part of IGUaNA:Teaching Materials:Measuring Depth to Bedrock Using Seismic Refraction
Measuring Depth to Bedrock Using Seismic Refraction This module is designed to introduce students to geophysical concepts and related earth science principles to illustrate how geophysics can be used to inform ...

The Visualization Tool Kit (VTK) part of Data, Simulations and Models:Tool Sheets
An image created with the Visualization Toolkit showing ice surface velocity from a modeled collapse of the West Antarctic Ice Sheet. Image by Chuck Anderson, Penn State University. submitted by Chuck Anderson, ...

Exploring Geochemistry in the Classroom Using MELTS Computational Tools part of Datasheets
MELTS is a software package designed to facilitate thermodynamic modeling of phase equilibria in magmatic systems. Users can compute equilibrium phase relations for igneous systems over the temperature range ...

Exploring Temperature Change Caused by Greenhouse Gas Increases part of Datasheets
Model Description EdGCM is a suite of software that allows users to create, run, analyze, visualize and report on global climate model simulations via a user-friendly interface. Users can run pre-created ...