Tools for working with large datasets, mapping applications, models or simulation programs

Antarctic Ice Model
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.
This is a new collection that describes geoscience tools such as data viewers, mapping programs, interactive databases or visualization programs that have applications in geoscience education.

Browse the examples:

The Visualization Tool Kit (VTK)
National Snow and Ice Data Center - Virtual Globes
Sea Ice Index
Google Earth
Google SketchUp
Digital Dynamic Maps
Fledermaus and iView3D

Do you use a data-manipulation tool for geoscience? Please tell us about it, and we will add it to this collection.