What is Geodesy? part of SERC Web Resource Collection

Overview of what traditional geodesy is, including descriptions of geoid, ellipsoid, datum, gravity, and GPS (global positioning system). Appropriate for high school or lower division college ...

GRACE: Tracking water from space part of SERC Web Resource Collection

This 7-minute video gives an overview of the GRACE (Gravity Recovery and Climate Experiment) satellites and explains the technique of using gravity to measure mass movement such changing as ice and ...

Elevation correction and the geoid tutorial part of SERC Web Resource Collection

The Earth is not a perfect sphere, but is instead more like a slightly squashed sphere called an ellipsoid. Because of this, GPS receivers must use a correction model (called a geoid) to calculate ...

InSAR: What it is and why you should care part of SERC Web Resource Collection

Provides an overview of what Interferometric Synthetic Aperture Radar (InSAR) is and how it is used to measure surface motion for a variety of geoscience fields. Based on an article originally ...

USArray GMV for Near East Coast OF Honshu, Japan Event part of SERC Web Resource Collection

This site, from EarthScope, features a groundmotion movie (Quicktime) of North American crust nearly 6 minutes after the terrible Japan earthquake.

Teachable Moments: Haiti Earthquake part of SERC Web Resource Collection

This page from IRIS includes links to resources about the geology of the January 12, 2010 Haiti earthquake. Included are animation/visualization links, USGS resources, and others.

Mantle convection currents and plate motions part of SERC Web Resource Collection

This page from the University of Nebraska, Omaha, investigates the connection between mantle convection and plate tectonics. Topics discussed (with illustrations) include convection geometries, hot ...

Subducting Farallon Plate under North America part of SERC Web Resource Collection

Three-dimensional seismic tomography image showing the subducting farallon plate beneath the crust of western North America. Part of Princeton University's 'Art of Science 2009' ...

Magnetic Reversals and Moving Continents part of SERC Web Resource Collection

This is a brief review of the role of polar reversals in the development of the Theory of Plate Tectonics from the old continental drift concept of Alfred Wegener. It describes the physical ...

The Aurora Page part of SERC Web Resource Collection

This site offers information, links and images about the Northern Lights, or Aurora Borealis. The links include: an aurora tutorial with a teacher suggestion page, current geomagnetic conditions from ...