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Latest Sea level Stories

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2011-02-15 11:00:00

Rising sea levels could threaten an average of 9 percent of the land within 180 US coastal cities by 2100, according to new research led by University of Arizona scientists. The Gulf and southern Atlantic coasts will be particularly affected. The cities of Miami, New Orleans, Tampa, Fla., and Virginia Beach, Va. could lose more than 10 percent of their land area by 2100. This is the first analysis of vulnerability to sea-level rise that includes every US coastal city in the lower 48 with a...

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2011-01-27 09:26:45

Hotter summers may not be as catastrophic for the Greenland ice sheet as previously feared and may actually slow down the flow of glaciers, according to new research. A letter published in Nature on 27 January explains how increased melting in warmer years causes the internal drainage system of the ice sheet to 'adapt' and accommodate more melt-water, without speeding up the flow of ice toward the oceans. The findings have important implications for future assessments of global sea level...

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2011-01-21 13:55:00

Scientists reported on Friday that Greenland's icesheet shed a record amount of melted snow and ice in 2010. The study found that the 2010 runoff was twice the average annual loss in Greenland over the previous three decades, surpassing a record set in 2007. According to the paper, ice melt has now topped this benchmark every year since 1996. Greenland's icesheet could drive up ocean levels by about 23 feet if it melted, drowning coastal cities around the world. No credible projections...

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2011-01-13 10:48:05

New NASA satellite data indicate the current La Niña event in the eastern Pacific has remained strong during November and December 2010. A new Ocean Surface Topography Mission (OSTM)/Jason-2 satellite image of the Pacific Ocean that averaged 10 days of data was just released from NASA. The image, centered on Dec. 26, 2010, was created at NASA's Jet Propulsion Laboratory (JPL), Pasadena, Calif. "The solid record of La Niña strength only goes back about...

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2010-12-22 08:08:26

By David Malmquist, Virginia Institute of Marine Science A new study of local sea-level trends by researchers at the Virginia Institute of Marine Science (VIMS) brings both good and bad news to localities concerned with coastal inundation and flooding along the shores of Chesapeake Bay. Dr. John Boon, the study's lead author, says the good news is that "absolute sea level in Chesapeake Bay is rising only about half as fast as the global average rise rate." The bad news, says Boon, is that...

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2010-12-18 08:45:42

Scientists from around the world have been hearing about the latest results from ESA's new GOCE, SMOS and CryoSat Earth observation missions at the biggest scientific gathering of the year. Attracting around 18 000 scientists, researchers, teachers, students and consultants to review developments in Earth and space science, the annual American Geophysical Union (AGU) Fall Meeting is an unparalleled opportunity for participants from around the world to share and discuss their...

2010-12-09 13:11:50

Sudden changes in the volume of meltwater contribute more to the acceleration "“ and eventual loss "“ of the Greenland ice sheet than the gradual increase of temperature, according to a University of British Columbia study. The ice sheet consists of layers of compressed snow and covers roughly 80 per cent of the surface of Greenland. Since the 1990s, it has been documented to be losing approximately 100 billion tonnes of ice per year "“ a process that most scientists agree...

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2010-12-01 14:08:31

Southampton researchers have estimated that  sea-level rose by an average of about 1 meter per century at the end of the last Ice Age, interrupted by rapid "Ëœjumps' during which it rose by up to 2.5 meters per century. The findings, published in Global and Planetary Change, will help unravel the responses of ocean circulation and climate to large inputs of ice-sheet meltwater to the world ocean. Global sea level rose by a total of more than 120 meters as the vast ice sheets of...

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2010-10-20 14:29:46

Sea levels around the Falkland Islands in the South Atlantic have risen since the mid nineteenth century and the rate of sea-level rise has accelerated over recent decades, according to newly published research. The findings are as expected under global warming and consistent with observations elsewhere around the globe. "We have been fortunate in being able to compare modern sea-level measurements obtained from tide gauges and from satellite radar altimeters with historical measurements made...

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2010-10-05 09:07:18

UCI-led team cites global warming, accelerated cycle of evaporation, precipitation Freshwater is flowing into Earth's oceans in greater amounts every year, a team of researchers has found, thanks to more frequent and extreme storms linked to global warming. All told, 18 percent more water fed into the world's oceans from rivers and melting polar ice sheets in 2006 than in 1994, with an average annual rise of 1.5 percent. "That might not sound like much "“ 1.5 percent a year "“ but...


Latest Sea level Reference Libraries

Current Sea Level Rise
2013-04-01 10:39:21

The sea levels all around the world are rising. Current sea-level rise has the potential to affect human populations and the natural environment. Two key factors have contributed to the observed sea level rise. The first is thermal expansion: as the ocean water warms, it expands. The second is from the influence of land-based ice because of increased melting. The major store of water on land is found in the glaciers and the ice sheets. The rising of sea levels is one of several lines of...

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2010-11-15 18:22:54

A radar altimeter measures altitude above the terrain beneath an aircraft as opposed to a barometric altimeter which provides the distance above a pre-determined datum, usually sea level. Radar is the underpinning principle of the system. Radio waves that are reflected back from the ground are timed in order to calculate speed, distance, and time which are related to the each other and can be used to calculate the distance from one point to another. Lloyd Espenschied invented the radar...

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Word of the Day
kenspeckle
  • Having so marked an appearance as easily to be recognized.
This word may come from the Swedish 'kanspak,' quick at recognizing persons or things, or else from confusion with 'conspicuous.'