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Archean Earth
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Title: The Cosmic Ray Intensity Near the Archean Earth Authors: O. Cohen, J. J. Drake, J. Kota We employ three-dimensional state of the art magnetohydrodynamic models of the early solar wind and heliosphere and a two-dimensional model for cosmic ray transport to investigate the cosmic ray spectr...
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Antarctic lakes
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'New frontier' of Antarctic lake exploration When a Russian drilling team reached Antarctica's Lake Vostok last week, they were able to claim a world first. No one had previously penetrated one of the continent's sub-glacial lakes, prompting Valery Lukin from the Arctic and Antarctic Research...
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Geomagnetic storms
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Two links for Aurora watchers.
They use data from ground-based magnetometers.
One based at York, UK
Example picture
[url=http://www.dcs.lancs.ac.uk/su...
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Permafrost
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Signs of thawing permafrost revealed from space Satellite are seeing changes in land surfaces in high detail at northern latitudes, indicating thawing permafrost. This releases greenhouse gases into parts of the Arctic, exacerbating the effects of climate change. Permafrost is ground that re...
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Earths Water
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The World's Oldest Water? New evidence bolsters the notion that deep saline groundwaters in South Africa's Witwįtersrand Basin may have remained isolated for many thousands, perhaps even millions, of years. The study, recently accepted for publication in Chemical Geology, found the noble gas...
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Nasa sea level change
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NASA PRESENTS BREAKTHROUGH DISCOVERIES ON SEA LEVEL CHANGE
For the first time, scientists have the tools and expertise to measure changes in global sea level and understand the mechanisms that contribute to those changes. Scientists from NASA, the National Oceanic and Atmospheric Adminis...
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Earth's outer core
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Iron 'jet stream' detected in Earth's outer core Scientists say they have identified a remarkable new feature in Earth's molten outer core. They describe it as a kind of "jet stream" - a fast-flowing river of liquid iron that is surging westwards under Alaska and Siberia. The moving mass of metal has...
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Tectonic Plates
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Computational scientists and geophysicists at the University of Texas at Austin and the California Institute of Technology (Caltech) have developed new computer algorithms that for the first time allow for the simultaneous modelling of the earth's Earth's mantle flow, large-scale tectonic p...
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Mariana Trench
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Oceans' deepest depth re-measured US scientists have mapped the deepest part of the world's oceans in greater detail than ever before. The Mariana Trench in the western Pacific runs for about 2,500km and extends down to 10,994m. This measurement for the deepest point - known as Challenger Deep - is...
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Arctic lakes
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Arctic lakes thawing earlier each year Scientists from the University of Southampton have found Arctic lakes, covered with ice during the winter months, are melting earlier each spring. The team, who monitored 13,300 lakes using satellite imagery, have shown that on average ice is breaking up on...
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Atacama Desert
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Earth's driest desert once had lakes The driest desert on Earth may once have had lakes and wetlands, scientists report. They have found the remnants of freshwater plants and animals buried in the arid plains of Chile's Atacama Desert. This watery period dates to between 9,000 and 17,000 years ago....
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Palaeocene-Eocene Thermal Maximum
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Carbon release to atmosphere 10 times faster than in the past The rate of release of carbon into the atmosphere today is nearly 10 times as fast as during the Palaeocene-Eocene Thermal Maximum (PETM), 55.9 million years ago, the best analogy we have for current global warming, according to an intern...
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Oceanic pole of inaccessibility
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The oceanic pole of inaccessibility (48°52.6'S 123°23.6'W) is the place in the ocean that is farthest from land. It lies in the South Pacific Ocean, 2,688 km (1,670 mi) from the nearest lands: Ducie Island (part of the Pitcairn Islands) in the north, Motu Nui (part of the Easter Islands) in the northe...
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Quasi-biennial oscillation
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Unprecedented atmospheric behaviour disrupts one of Earth's most regular climate cycles The normal flow of air high up in the atmosphere over the equator, known as the quasi-biennial oscillation, was seen to break down earlier this year. These stratospheric winds are found high above the tropic...
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South Atlantic Anomaly
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The South Atlantic Anomaly (SAA) is an area where the Earth's inner Van Allen radiation belt comes closest to the Earth's surface. This leads to an increased flux of energetic particles in this region and exposes orbiting satellites to higher than usual levels of radiation. The effect is caused by t...
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