Search Results for: Ocean

Ocean-going acoustic sensor array to aid in national security, ocean research efforts

Jason Holmes, a mechanical engineering graduate student at Boston University and guest researcher at Woods Hole Oceanographic Institute, has devised a low-cost, highly sensitive array of underwater ears that is perking up interest in both homeland security and ocean research circles. Holmes’ device — an underwater hydrophone array designed to be towed by a small, autonomous submarine — c

The great Sumatra-Andaman earthquake of December 26, 2004, was an event of stunning proportions, both in its human dimensions–nearly 300,000 lives lost–and as a geological phenomenon. The sudden rupture of a huge fault beneath the Indian Ocean unleashed a devastating tsunami. It was the largest earthquake in the past 40 years and was followed by the second largest just three months later (March 28, 2005) on an adjacent fault.

Modern monitoring technology gathered an unprece

The December earthquake and tsunami that killed approximately 300,000 people in the Indian Ocean region was so powerful that no point on Earth went undisturbed, pointing to the need for more active warnings about the consequences of future events, according to University of Colorado at Boulder seismologist Roger Bilham.

Bilham offers his perspective in “A Flying Start, Then a Slow Slip,” an overview of findings on the Sumatra-Andaman earthquake published in the May 20 issue of Scie

Quake was twice as strong, but much slower than thought

The Sumatra-Andaman earthquake that generated a deadly tsunami on Dec. 26 was stronger and slower than most seismologists thought, according to scientists at the University of California, Berkeley, the Wadia Institute of Himalayan Geology in India and the United States Geological Survey (U.S.G.S.).

Using data from global positioning system (GPS) stations around the Pacific and Indian oceans, including previously unav

The earthquake that generated the Sumatran-Andaman Islands tsunami caused massive devastation, but exactly what happened beneath the ocean is the focus of modeling activities by an international team of geoscientists.

“The earthquake rupture ran a distance equivalent to the distance from Jacksonville, Florida to Boston, Mass.,” says Charles J. Ammon, associate professor of geosciences at Penn State. “This earthquake lasted just under 10 minutes, while most large earthquakes take o

In 2006, with the launch of Jules Verne, the Automated Transfer Vehicle (ATV) will become the new European powerful automatic re-supply spaceship able to bring an indispensable payload to the International Space Station and its permanent crew. This first ATV will carry a mix of supplies depending on the Station’s needs and its own payload capacity.

ESA, NASA and Russian counterparts are already defining the priorities to accommodate the most appropriate combination of different sup