The climate story of our planet is recorded in ice over 800,000 years. The ice, over Lake Vostok in Antarctica, is 3 kilometers high. A core sample of this mighty sheet of ice produced important geophysics data. With Ice Core Walk, you can take an audio tour and virtually walk down the data from the ice core. Listen how the climate changed in the distant past, and how dramatically it changes right now. Each step equals 100 years... Go!

The Vostok Ice Core

Ice cores are unique with their entrapped air inclusions. They enable a direct sampling of past changes in atmospheric trace-gas composition. The Vostok ice-core record extends through eight ice age cycles. For a full scientific discussion of ice cores, visit Science Magazine

The Production Team

Data for this project has been assembled from a vast array of ice core studies by Garry Clarke and Philippe Tortell at the University of British Columbia, Canada. This fundamental data was sonified by Chris Chafe at Stanford University. Greg Niemeyer, Chris Chafe, and George Hilley created the walkable experience of the Ice Core Walk with stories contributed by Hanna Black, Liz Carlisle, Emma Hutchingson, and Ashley Overbeek, all also at Stanford University. Greg Niemeyer and Mike Ghaussy, UC Berkeley maintain this web page.

Download the Data

Link to repository of the data in csv format here.

Donate to the Project

If you enjoyed your walking experience, please consider donating to the Ice Core Walk team. All proceeds support project maintenance and development. Link to paypal donations here.

Install the App

The free iTunes ShoMe app allows you to set a start point and an end point for your walk. The ShoMe app tracks your position and plays segments of the audio tour exactly synched to your walk.

Download the Audio File to any Phone

Load this audio file (coming soon) onto your phone, connect your headphones, hit play and walk as long as the sound plays. You will have walked the full length of the Vostok Ice Core, and hear the stories of major geophysical events. Each step of your walk equals about 100 years. At the very end of the walk, you will reach the present and its dramatically increasing CO2 and Temperature levels.

The Vostock Ice Core Story

Load this audio file onto your phone, connect your headphones, hit play and walk as long as the sound plays. You will have walked the full length of the Vostock Ice Core, and hear the stories of major geophysical events. Each step equals about 100 years. At the very end of the walk, you will reach the present and its stunning CO2 and Temperature levels.