Search Results for: Ocean

Envisat radar imagery confirms that the B-15A iceberg – the world’s largest floating object – is adrift once more after two months aground on a shallow seamount. This latest development poses a renewed threat to the nearby pier of land-attached ice known as the Drygalski ice tongue.

The sheer scale of B-15A is best appreciated from space. The bottle-shaped Antarctic iceberg is around 120 kilometres long, with an area exceeding 2500 square kilometres, making it about as larg

The SCIAMACHY sensor aboard Envisat has performed the first space-based measurements of the global distribution of near-surface methane, one of the most important greenhouse gases. As reported in Thursday’s issue of Science Express, the results show larger than expected emissions across tropical land regions.

The report concerns work carried out by the Institute of Environmental Physics (IUP) at the University of Heidelberg in cooperation with the Royal Netherlands Meteorolog

Sea level rise to outpace temperature increase

Even if all greenhouse gases had been stabilized in the year 2000, we would still be committed to a warmer Earth and greater sea level rise in the present century, according to a new study by a team of climate modelers at the National Center for Atmospheric Research (NCAR). The findings are published in this week’s issue of the journal Science.
The modeling study quantifies the relative rates of sea level rise and global t

The stresses in the earth’s crust which have resulted from the Sumatra-Andaman earthquake have significantly increased the risk of another large earthquake in the already-devastated Indonesian island of Sumatra, according to new research findings by scientists from the University of Ulster’s School of Environmental Sciences.

According to their calculations, published in this week’s edition of leading scientific journal Nature, the Christmas 2004 earthquake which generated the m

The United States exports nitrogen pollution beyond its borders, and some of this nitrogen may end up in Western Europe, according to a recent data analysis by scientists at the National Center for Atmospheric Research (NCAR) and the University of New Hampshire. Most of the nitrogen pollution produced in Western Europe is deposited within its own boundaries, the authors found. The findings are an important step in quantifying total U.S. pollution export for policy makers. The study was published

A different style of coastal barrier islands that forms under lower-energy conditions than classic ocean-facing barriers, such as North Carolina’s Outer Banks, has been identified by coastal geological researchers at Duke University and the University of Ulster in Northern Ireland. The new style of islands is typically found in protected bays and lagoons.

“This is a major and important recognition,” said Orrin Pilkey, a geology professor emeritus at Duke’s Nicholas