Search Results for: ocean

Ice core ’dipstick’ indicates West Antarctic ice has thinned less than believed

Rising sea levels 20,000 years ago, as the last ice age was beginning to wane, often are attributed in part to melting in West Antarctica.

But in a new study led by University of Washington researchers, an ice core of 1,000 meters was used as a sort of dipstick to show that a key section of the West Antarctic Ice Sheet probably never contained as much ice as scientists originally thought it did. That means it couldn’t have contributed as much to the higher sea level. In an area c

Researchers go into action after Tsunami

British researchers have launched urgent research programmes in order to learn lessons from the recent Indian Ocean Tsunami disaster. Such knowledge is relevant to both UK, and overseas disaster assessment and prevention programmes.

Funded by grants from the Engineering and Physical Sciences Research Council (EPSRC), teams from the University of Cambridge, the University of Newcastle, and University College London have looked at differing aspects of the tsunami’s effects. Their o

Giant iceberg B-15A edges past floating ice pier

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

Envisat enables first global check of regional methane emissions

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

Climate change inevitable in 21st century

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

UU Scientists Issue Indonesia Earthquake Warning

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

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