(A) Surface distributions of Ω aragonite, S, fraction of sea ice meltwater (f SIM), and TA in surface water observed between depths of 0 and 20 m. f SIM was estimated by using 18O and S measurements (12, 13). Gray contour lines indicate isobaths of 1000, 2000, and 3000 m. (B) Relationship between Ω aragonite […]
Summertime observations of dissolved CH4 in the East Siberian Arctic Shelf (ESAS) (21). … (D) Fluxes of CH4 venting to the atmosphere over the ESAS. Remobilization to the atmosphere of only a small fraction of the methane held in East Siberian Arctic Shelf (ESAS) sediments could trigger abrupt climate warming, yet it is believed that […]
What does a metre sea level rise actually mean? This is how we visualised some of the data confusion Posted by David McCandless, Monday 22 February 2010 14.33 GMT, guardian.co.uk Another day, another set of bewildering climate figures. Today, key climate scientists withdrew their predictions. of a metre sea-level rise by 2100. Other scientists meanwhile […]
A vast iceberg that broke off eastern Antarctic earlier this month could disrupt marine life in the region, scientists have warned. They say the iceberg, which is 78km long and up to 39km wide, could have consequences for the area’s colonies of emperor penguins. The emblematic birds may be forced to travel further afield to […]
This image shows ice-front retreat in part of the southern Antarctic Peninsula from 1947 to 2009. USGS scientists are studying coastal and glacier change along the entire Antarctic coastline. The southern portion of the Antarctic Peninsula is one area studied as part of this project, and is summarized in the USGS report, Coastal-Change and Glaciological […]
Glacier Retreat and Sea Level Rise are Possible Consequences Ice shelves are retreating in the southern section of the Antarctic Peninsula due to climate change. This could result in glacier retreat and sea-level rise if warming continues, threatening coastal communities and low-lying islands worldwide. Research by the U.S. Geological Survey is the first to document […]
ScienceDaily (Feb. 12, 2010) — Depicting a cause-and-effect scenario that spans thousands of miles, a scientist at Scripps Institution of Oceanography at UC San Diego and his collaborators discovered that ocean waves originating along the Pacific coasts of North and South America impact Antarctic ice shelves and could play a role in their catastrophic collapse. […]
Following the loss of an ice bridge on the Antarctic Wilkins Ice Shelf, the northern ice front is now becoming unstable. The first icebergs broke off at this point on 20 April 2009. This was observed by scientists using the TerraSAR-X Earth observation satellite operated by the German Aerospace Center (Deutsches Zentrum fur Luft- und […]
The Wilkins Ice Shelf is at risk of partly breaking away from the Antarctic Peninsula as the ice bridge that connects it to Charcot and Latady Islands looks set to collapse. The beginning of what appears to be the demise of the ice bridge began this week when new rifts forming along its centre axis […]
Madrid – Antarctica’s Wilkins Ice Shelf is rapidly disintegrating, Spanish scientists reported on Tuesday, with potentially ominous implications for climate change. An ice sheet of 14,000 square kilometres has broken off from the Wilkins Shelf, and has itself broken into several large icebergs, according to a statement from Spain’s National Research Council (CSIC). CSIC scientists […]
