Geobulletin alpha

News from the Geoblogosphere feed

New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

Posts treating: "scientists"

Saturday, 20 December 2014

sort by: date | clicks

..and That’s What Science is all About Charlie Brown 

Dan\'s Wild Wild Science Journal [2014-12-20 07:44:13]  recommend  recommend this post  (17 visits) info

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

New Zealand watersheds show the dirt on logging and grazing 

AGU Meetings [2014-12-19 23:33:39]  recommend  recommend this post  (20 visits) info

 Triassic; NZ,US
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

Electromagnetic imaging helps scientists locate underwater methane 

AGU Meetings [2014-12-19 19:26:53]  recommend  recommend this post  (21 visits) info

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

Rocks: the larger they are, the faster they crumble 

AGU Meetings [2014-12-19 01:39:20]  recommend  recommend this post  (23 visits) info

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 [...]

Heaven Above and Earth Below: Scientists Track Atmospheric Disturbances to Gather Earthquake Data 

AGU Meetings [2014-12-18 19:19:33]  recommend  recommend this post  (18 visits) info
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 [...]

An updated geological timeline for the extinction of the dinosaurs 

AGU Meetings [2014-12-17 18:03:10]  recommend  recommend this post  (22 visits) info

 Paleogene,Cretaceous; MX
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 [...]

Imaggeo on Mondays: A single beam in the dancing night lights 

GeoLog-The official blog of the European Geosciences Union [2014-12-15 13:00:37]  recommend  recommend this post  (20 visits) info

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 [...]

Ten Years of RealClimate 

Real Climate [2014-12-10 21:08:10]  recommend  recommend this post  (18 visits) info
In the spring of 2004, when we (individually) first started talking to people about starting a blog on climate science, almost everyone thought it was a great idea, but very few thought it was something they should get involved in. Today, scientists communicating on social media is far more commonplace. On the occasion of our

Connecting Earth scientists and school students – Apply to take part in I’m a Geoscientist! 

GeoLog-The official blog of the European Geosciences Union [2014-12-10 13:05:26]  recommend  recommend this post  (16 visits) info

What and when Imagine a talent show where contestants get voted off depending on their skills in their area of choice. Then imagine that this talent show is populated by scientists with school students voting them off based on the scientist’s ability to communicate their research well. This is the basis of a recent EGU educational initiative that launched earlier in 2014, and that will return in 2015. The EGU are continuing their collaboration with Gallomanor, the UK company in charge of [...]

Looking to the past to see into the future 

Four Degrees [2014-12-03 09:00:55]  recommend  recommend this post  (21 visits) info

 Neogene; GL,,US
The Earth’s surface temperatures can have a profound effect on the Earth’s ice sheets, the huge layers of ice thousands of metres thick that cover Greenland and Antarctica. Over the past few decades, satellites have monitored the changes of these icy landscapes, revealing that parts of Greenland and West Antarctica are melting. This is important as it contributes to sea level rise, which can have significant impacts on vulnerable coastal lands. So far, however, East Antarctica’s ice [...]

Did life on Mars exist? New insights into organic carbon in the Tissint meteorite 

Gunnars Geo-Blog [2014-12-02 21:42:00]  recommend  recommend this post  (24 visits) info

     It was July 2011 when the Martian meteorite Tissint fell to Earth. An international research team has found organic carbon in rock sections of the meteorite and precisely unraveled its petrographic settings. The new results are presented in the periodical “Meteoritic and Planetary Science (MAPS)”. There is persuasive evidence that the carbon originated on Mars. The scientists

Sonar To Aid Lake Huron Trout Restoration 

Lake Scientist [2014-12-02 16:20:32]  recommend  recommend this post  (20 visits) info

Sonar technology commonly used to study shipwrecks in Lake Huron is helping scientists learn more about trout habitat there, according to the Great Lakes Echo. Data collected in the effort[...] The post Sonar To Aid Lake Huron Trout Restoration appeared first on Lake

Using Your Smartphone to Improve Weather Forecasts and Warnings 

Dan\'s Wild Wild Science Journal [2014-11-30 00:11:51]  recommend  recommend this post  (51 visits) info

You need to download an app called mPing. mPing is a free app developed by scientists at the University of Oklahoma (My alma mater!) and the National Severe Storms Laboratory in Norman, Oklahoma, and it’s aim is to improve forecasts and weather models by letting everyone know what type of precipitation is falling on you right now. You might say, that we have radar for that, but in reality, radar

This Bird Flies South for the Winter 

State of the Planet [2014-11-25 04:39:18]  recommend  recommend this post  (26 visits) info
Migrating south in the winter is a behavior that Antarctic scientists share with many species of birds, although the scientists fly just a bit further south. For the IcePod team it was time to join the migration so they could test their equipment in the most challenging environment the Earth has to

Alaskan ash in Ireland: context, implications and media coverage 

Volcan01010 [2014-11-24 17:50:18]  recommend  recommend this post  (22 visits) info

Long-range transport of volcanic ash was in the news last week, thanks to a recently published study by an international team of scientists, led by Britta Jensen and Sean Pyne-O’Donnell from Queen’s University in Belfast. They showed that volcanic ash … Continue reading

Fountain of youth underlies Antarctic mountains 

AGU Meetings [2014-11-19 16:13:58]  recommend  recommend this post  (27 visits) info

Time ravages mountains, as it does people. Sharp features soften, and bodies grow shorter and rounder. But under the right conditions, some mountains refuse to age. In a new study, scientists explain why the ice-covered Gamburtsev Mountains in the middle of Antarctica looks as young as they

Changing Winds Key To Studying Lake Tahoe’s Currents 

Lake Scientist [2014-11-18 17:50:42]  recommend  recommend this post  (21 visits) info

Scientists at the Tahoe Environmental Research Center say that Lake Tahoe is all but calm underneath the surface, according to the Nevada Appeal. And though its currents are broadly fickle,[...] The post Changing Winds Key To Studying Lake Tahoe’s Currents appeared first on Lake

Scientists Engage With the Public During Lava Flow Threat 

The Plainspoken Scientist [2014-11-11 20:15:30]  recommend  recommend this post  (24 visits) info
On 27 June, lava from Kīlauea, an active volcano on the island of Hawai`i, began flowing to the northeast, threatening the residents in Pāhoa. Eos recently spoke with Michael Poland, a geophysicist at the U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) and a member of the Eos Editorial Advisory Board, to discuss how he and his colleagues communicated this threat to the

Counting stars 2.0 

Gunnars Geo-Blog [2014-11-10 21:18:00]  recommend  recommend this post  (25 visits) info
     In winter time, when nights become longer and darker, stargazing can be a fantastic experience and family activity. But in urban areas, the stars disappear behind the skyglow caused by waste light that shines up into the sky. This light pollution is not only a problem for astronomy. Scientists from the interdisciplinary project “Loss of the Night” study how it affects health,

In search of the first settlers of the Americas, scientists keep finding surprises 

BEYONDbones [2014-11-08 17:55:03]  recommend  recommend this post  (30 visits) info

The genus Homo, to which we belong, was the first to leave Africa and explore the world. Homo erectus, one of our ancestors, explored Asia and Europe as early as 1.8 million years ago. However, one huge landmass was left … Continue reading | Impressum