Steam from the Pu'u O'o eruption as lava enters the ocean, on the island of Hawai'i in May 2001.
Jun 18, 2006Mapping volcanic surface deposits

Contributor: Luke Flynn, University of Hawaii To understand the complex “plumbing” beneath active volcanic lave lakes and determine the amount of lava flowing from them, Luke Flynn of the University of Hawaii has been using time series of Landsat images. Much of his work has focused on the persistence of volcanic eruptions at Hawaii’s Kilauea […]

Landsat TM image of the Harrisburg region acquired on Oct. 30, 1984.
Oct 30, 1984Mapping major geologic features

Location:¬†Harrisburg, Pennsylvania This Landsat view shows Harrisburg and the Appalachian Mountains of central Pennsylvania. The Piedmont province is visible in the lower right corner. The Great Valley runs SW-NE across the center of view, and the Valley and Ridge province occupies the northwest portion of scene. The city of Harrisburg is the blue-grey patch next […]