News Archive

January 4, 2017
Glaciers and ice sheets move in unique and sometimes surprising patterns, as evidenced by a new capability that uses satellite images to map the speed of flowing ice in Greenland, Antarctica and mountain ranges around the world. With imagery and data from Landsat 8, a joint mission of NASA and the U.S. Geological Survey, scientists are providing a near-real-time view of every large glacier and...
January 4, 2017
Improved satellite technology is allowing researchers to more accurately measure how glacier ice could affect global sea levels. A team of international scientists, including Mark Fahnestock of the University of Alaska Fairbanks Geophysical Institute, have studied thousands of satellite images taken since 2013 to gauge how rapidly glacier ice is being dumped into the ocean. The analysis, using...
January 4, 2017
A NASA-sponsored field experiment is providing new insight about the levels of methane escaping from Arctic lakes. Using satellite imagery, University of Alaska Fairbanks researchers have been measuring bubbles beneath the ice of lakes throughout Alaska. By analyzing data from numerous sites, the project aims to estimate the amount of methane being released to the atmosphere through thermokarst...
January 4, 2017
The University of Alaska Fairbanks will offer a new online course this spring geared to help educators teach about earthquake science. The one-credit professional development course will provide teachers with the knowledge, tools and resources to teach earthquake topics to a wide range of students, from K-12 to community college levels. The course will guide teachers through hands-on...
December 14, 2016
This week, GI and UAF scientists are with colleagues from around the world at one of the globe’s largest scientific conferences, the American Geophysical Union’s 2016 fall meeting. Researchers, both faculty and students, are presenting their work and meeting with collaborators and funding agencies. UAF PIO Jeff Richardson is blogging about GI and other UAF researchers’ presentations and other...
November 28, 2016
Pine Island Glacier — about the size of Florida and one of the largest ice streams in Antarctica — has been thinning and retreating at an alarming rate since 1992, when satellite images first began to document the change. New evidence suggests that the thinning and retreat of Pine Island Glacier was underway as early as the 1940s, an international team reported Nov. 23 in the journal Nature. Ice...
November 22, 2016
Along Alaska's southern coast, harbor seals use icebergs from tidewater glaciers as platforms to give birth, nurse, molt and avoid predators. As these glaciers melt and thin, some may retreat onto land and no longer calve into the ocean. Researchers from the University of Alaska Fairbanks Geophysical Institute and the National Park Service have successfully tested a method to measure how much...
November 22, 2016
Around 65 million years ago, a massive asteroid crashed into the Gulf of Mexico. The impact and subsequent effects wiped out about 75 percent of all life on Earth, including most of the dinosaurs. Scientists studying the resulting Chicxulub crater are learning how large asteroid impacts deform rocks in a way that may produce habitat advantageous to early life forms. In April and May 2016, an...
November 22, 2016
Staff at the University of Alaska Fairbanks helped with a successful test of a high-altitude glider to help evaluate how advanced surveillance technologies could be used to track winged vehicles returning from space. During the test this fall in Oregon, researchers at UAF's Alaska Center for Unmanned Aircraft Systems Integration supported the drop of a small unmanned glider from a high-altitude...
October 24, 2016
CONTACT: Marmian Grimes, 907-474-7902, mlgrimes@alaska.edu A new mapping project has identified regions worldwide that are most susceptible to dramatic permafrost thaw formations, known as thermokarst, and the resulting release of greenhouse gases. University of Alaska Fairbanks researchers David McGuire and Vladimir Romanovsky were part of the project, which was led by University of Alberta...