Posts treating: "scientists"
Monday, 26 January 2015
Underwater sounds can be used to detect different ways glaciers lose ice as they flow into the ocean, giving scientists new insight into these poorly understood events, according to new
From October 2013 to December 2014, a total of 49 professors, scientists and students who are part of the Lamont-Doherty Earth Observatory community were recognized for outstanding achievements in their field. The acknowledgements in education and research included fellowships, medals and awards from many of the top science institutions in the world. “It’s wonderful to
GeoLog-The official blog of the European Geosciences Union [2015-01-14 12:30:16]
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(23 visits) AT,CN
The EGU General Assembly brings together geoscientists from all over the world to one meeting that covers all disciplines of the Earth, planetary and space sciences. Following from last year’s success, the EGU General Assembly will have a theme: A Voyage Through Scales. The theme is an invitation to contemplate Earth’s extraordinary variability extending from milliseconds to its age and from microns to the size of the planet. The theme does not constrain the topics to be presented at the [...]
Last month several of us went to the American Geophysical Union fall meeting. The meeting had record attendance! Over 24,000 science professionals and students converged in San Francisco from many parts of the world.People poured into our booth to see our Emriver Em2 geomodel and two of our Emflume1 models. We met new people and saw familiar faces as well. Akiyo shows the impact gravel mining has on a river.Jim, Anna, Akiyo and Meriam relax in the exhibit hall.Our Emflume1 models [...]
GS Western Regional Group invites you to:- The Current Status of Geological Screening for Disposal of Radioactive WasteBruce Yardley / Andrew Parkes, RWM20 January 6:30pm The permanent, safe disposal of higher activity radioactive waste is one of the great challenges facing Earth ScientistsThe internationally agreed solution is deep geological disposal.The Government has recently published a revised approach to addressing the issue in this country, in which the geoscientific [...]
The concept of cloning dinosaurs has captivated scientists and the general public for a long time, but this interest was greatly increased when Jurassic Park was released in 1993. We all want to know what dinosaurs truly looked like. We all want to know what dinosaurs truly sounded like. We all want to know how
To identify, understand, and manage soils, soil scientists have developed a soil classification or taxonomy system. Like the classification systems for plants and animals, the soil classification system contains several
The sun spews forth super-heated, charged particles, collectively called plasma, that fly out into the vacuum of space at speeds of 200 to 400 miles per second (300 to 700 kilometers per second). These waves of plasma make up the solar winds that spread across our solar system.
Traveling across freezing space should suck all the heat from the plasma by the time it nears Earth, but the solar waves detected near our planet are still hot. Scientists think something is happening within the [...]
The Larsen Ice Shelf is a huge piece of ice that sits on the other side of the Antarctic Peninsula from Rothera Station. It is divided into sections, which are named, from north to south (left to right, in the map), the Larsen A, B, and C. Back in 2002, a large piece of the Larsen B broke off into the ocean. The piece that broke off was 1,250 square miles, about the size of Rhode Island! It broke apart and fell into the ocean over a course of about a month. (You can see the satellite images of [...]
There are a lot of neat creatures living in the ocean around Antarctica: not just whales, seals, and penguins! There’s quite a diversity of invertebrates (animals without backbones) living on the ocean floor. We call these benthic invertebrates. (“Benthic” means they live on the bottom.)There are several scientists at Rothera who study these benthic invertebrates, and they shared some of their animals with me. There are some animals you are probably familiar with: sea stars (or starfish), [...]
Jupiter’s moon Europa has tantalized scientists with its potential for harboring life ever since Galileo first spotted the icy satellite in 1610. If living matter is bubbling anywhere in our solar system, they suspect, it would be below the moon’s icy shell, where a presumed ocean of salty water meets a mineral-rich interior. But because scientists can’t peer beneath the ice, they must rely on data beamed back by passing spacecraft. A proposed NASA mission called Europa Clipper could be [...]
In 1997, a record-breaking El Niño event in the Pacific Ocean brought rain to California, flooding to Peru, and drought to Africa. Earlier this year scientists said that warm currents in the Pacific Ocean presaged the biggest El Niño event since the record-breaking 1997-1998 season. The National Oceanic and Atmospheric Administration put the likelihood of a major Northern Hemisphere El Niño at 80 percent. But despite high expectations, the predicted El Niño of 2014 has ultimately fizzled. [...]
Earlier this year, superheated water within Japan’s Mount Ontake triggered a hydrothermal explosion. Scientists monitoring the volcano had seen no signs of impending danger. The resulting steam-triggered eruption killed 57 people. Clusters of earthquakes often precede major eruptions of lava and ash. The same is not true for smaller steam-triggered eruptions of gas like the Ontake event. But those are the sorts of events that Társilo Girona would like to predict, and he believes that cameras [...]
I am just back from a whirlwind trip to the AGU Meeting in San Francisco. 25,000 Earth scientists in one place, and it’s among the largest science meetings on the planet. I shot some videos that I will post over the weekend, but in the meantime here is a talk I made in October 2013 (in Washington) as part of the AGU Science Speaker
Grazing animals and logging trees in New Zealand could affect water quality there, according to scientists working to determine how water quality problems in the country relate to land use.
The results could help guide water-friendly policy in New Zealand and other parts of the world, according to Jason Julian, a geographer at Texas State
A simple compound found in underwater structures could generate warmth below the ocean, inside homes, and in the atmosphere. The location of the compound, methane, determines whether it’s dangerous, welcome, or world-changing.
Now, a team from GEOMAR in Kiel, Germany and the University of Southampton in the United Kingdom has used electromagnetic images to more accurately identify and characterize a source of methane beneath the ocean
Sooner or later, mountains crumble into boulders, boulders crumble into rocks and pebbles, and so on, until wind and rivers carry sand and dust into the ocean, completing the geologic rock cycle. "But how [rocks] go from the mountain into that ocean bottom, that's what is not understood very well," said Jaakko Putkonen, a geologist with the University of North Dakota. Scientists from UND and other institutions discovered that chunks of rock break off of boulders in Antarctica once every 1,900 [...]
Earthquakes generate seismic waves that propagate through earth, water, and air. Generations of geologists have used ground-based seismometers to decipher information about earthquakes, including magnitude, epicenter, depth and tsunami danger. But more recently some researchers have wondered if seismic waves traveling through the air also carry traceable information about the earthquake that generated them. If so, measuring seismic waves in the atmosphere could potentially speed up earthquake [...]
The asteroid that smashed into the Yucatan Peninsula a little more than 66 million years ago left behind the Chicxulub crater, but it also left behind something else: iridium, a rare element, which settled in a fine layer all over the world. When scientists discovered this layer between rock strata in the 1980s, it eventually led them to the crater as well, and an explanation for the disappearance of the dinosaurs. But on either side of that layer, which serves as a geological boundary between [...]
GeoLog-The official blog of the European Geosciences Union [2014-12-15 13:00:37]
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(26 visits) US,CN,KM,FI
Research takes Earth scientists to the four corners of globe. So, if you happen to have a keen interest in photography and find yourself doing research at high latitudes, chances are you’ll get lucky and photograph the dancing night lights: aurora (or northern lights), arguably one of the planet’s most breath taking natural phenomenon. That is exactly the position Matias Takala, a researcher at the Finnish Meteorological Institute (FMI), was in when he was able to take this incredible [...]