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Tag: icebergs
Giant icebergs fertilise the ocean, sucking carbon study
2016-01-11 17:39:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate Home: Icebergs that break off Antarctica could account for twice as much carbon dioxide stored in the Southern Ocean than previously believed, a study on Monday suggested. The drifting blocks sustain far greater amounts of phytoplankton -- which remove CO2 through photosynthesis -- in their trail as they melt, satellite imagery revealed. Icebergs at least 18 km (11.2 miles) in length were found to fertilise the ocean for hundreds of kilometres and up to a month after passing, and are now thought...
Tags: study
ocean
carbon
giant
Giant icebergs are slowing climate change, research reveals
2016-01-11 17:01:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: Giant melting icebergs may be a symbol of climate change but new research has revealed that the plumes of nutrient-rich waters they leave in their wake lead to millions of tonnes of carbon being trapped each year. Researchers examined 175 satellite photos of giant icebergs in the Southern Ocean which surrounds Antarctica and discovered green plumes stretching up to 1,000km behind them. The greener colour of the plumes is due to blooms of phytoplankton, which thrive on the iron and other nutrients...
Tags: change
research
giant
climate
The Icebergs Are Talking. We Just Have To Listen
2015-02-01 17:22:00| Climate Ark Climate Change & Global Warming Newsfeed
National Public Radio: If a glacier cracks and nobody hears it, does it still make a sound? "Oh, they moan and they groan," says Grant Deane, a researcher at the Scripps Institution of Oceanography. "They crackle and rumble and fizz, and they have all kinds of amazing sounds that they make." Deane is one of the authors of a new study that interprets the acoustics of glacial melting. "Yes, it's like they're speaking to us, but it's a language that we don't yet understand well," he says. So Deane and his team...
Tags: to
listen
talking
icebergs
Icebergs once drifted to Florida, new climate model suggests
2014-10-12 18:46:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: Using a first-of-its-kind, high-resolution numerical model to describe ocean circulation during the last ice age about 21,000 year ago, oceanographer Alan Condron of the University of Massachusetts Amherst has shown that icebergs and meltwater from the North American ice sheet would have regularly reached South Carolina and even southern Florida. The models are supported by the discovery of iceberg scour marks on the sea floor along the entire continental shelf. Such a view of past meltwater and...
Tags: model
florida
suggests
climate
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