Narration: Ryan Fitzgibbons


1,387 different orbit paths every 91 days by ICESat-2. The orbit pattern creates a dense grid over the poles, all anchored here at the Greenland Summit Observatory. Since each orbital path will repeat every three months, scientists will be able to observe changing between seasons. The more frequent measurements of the polar regions will give us a more detailed look at retreating glaciers, melting ice sheets and thinning sea ice and the global impacts of those changes.