Earth and Atmospheric Sciences

"Hearing" the Explosions in North Korea


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Turn up the volume on your computer because Associate Professor Zhigang Peng is allowing people to hear what the explosions sounded like when their signals rumbled through the ground.
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From Christmas Island to People's Choice


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Congratulations to Pamela Grothe, a Ph.D. student in the School of Earth and Atmospheric Sciences, on winning 3rd place as well as being chosen as the “People's Choice” in the inaugural Georgia Tech "Three-minute thesis" (3MT®) competition.
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Congratulations to Pamela Grothe, a Ph.D. student in the School of Earth and Atmospheric Sciences, on winning 3rd place as well as being chosen as the “People's Choice” in the inaugural Georgia Tech "Three-minute thesis" (3MT®) competition.
The 3MT® concept was developed at the University of Queensland in Australia and it has spread around the globe. Doctoral students compete with oral presentations, strictly limited to three minutes and using only one Powerpoint slide, on their thesis topic.

Mineralogical Confirmation for Liquid Water on Present-day Mars


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A new study led by scientists at the Georgia Institute of Technology provides the strongest evidence yet that there is intermittent flowing liquid water on modern Mars.
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A new study led by scientists at the Georgia Institute of Technology provides the strongest evidence yet that there is intermittent flowing liquid water on modern Mars. Using instruments on board NASA’s Mars Reconnaissance Orbiter (MRO), researchers measured spectral signatures of hydrated minerals on slopes where mysterious, possibly water-related streaks are found on the red planet. These streaks, known as recurring slope lineae (RSL), form and snake down the planet’s steep slopes during warm seasons when temperatures exceed -10 degrees Fahrenheit (-23 degrees Celsius).

New Approach Could Reduce Human Health Impacts of Electric Power Generation


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Researchers have created a new capability to minimize the human health effects of air pollution resulting from electric power generating facilities.
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By combining information about power plant operation with real-time air quality predictions, researchers have created a new capability to minimize the human health effects of air pollution resulting from electric power generating facilities.

New robotic vehicle provides a never-before-seen look under Antarctica


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A first-of-its-kind robotic vehicle recently dove to depths never before visited under Antarctica’s Ross Ice Shelf and brought back video of life on the seafloor.
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A first-of-its-kind robotic vehicle recently dove to depths never before visited under Antarctica’s Ross Ice Shelf and brought back video of life on the seafloor.

A team of scientists and engineers from the Georgia Institute of Technology assembled the unmanned, underwater vehicle on Antarctica. They deployed (and retrieved) the vehicle through a 12-inch diameter hole through 20 meters of ice and another 500 meters of water to the sea floor.

La Niña-like conditions associated with 2,500-year-long shutdown of coral reef growth


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A new study has found thatLa Niña-like conditions in the Pacific Ocean off the coast of Panamá were closely associated with an abrupt shutdown in coral reef growth that lasted 2,500 years.
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A new study has found thatLa Niña-like conditions in the Pacific Ocean off the coast of Panamá were closely associated with an abrupt shutdown in coral reef growth that lasted 2,500 years. The study suggests that future changes in climate similar to those in the study could cause coral reefs to collapse in the future.

Man-made pollutants significantly influence how tree emissions form aerosol particles


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A new study has found that certain emissions from cars and coal-fired power plants promote processes that transform naturally occurring emissions from trees into organic aerosols.
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The southeastern United States is a natural laboratory for scientists studying how chemicals emitted by human activities and trees interact with each other and affect air quality and climate. A new study has found that certain emissions from cars and coal-fired power plants promote processes that transform naturally occurring emissions from trees into organic aerosols. Organic aerosols make up a substantial fraction of ambient particulate matter (PM) that can affect climate, air quality and human health.

Looking at El Nino’s past to predict its future


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A new study shows how this climate system responds to various pressures, such as changes in carbon dioxide and ice cover, in one of the best models used to project future climate change.
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The El Niño Southern Oscillation is Earth’s main source of year-to-year climate variability, but its response to global warming remains highly uncertain.

Carbon soot particles, dust blamed for discoloring India’s Taj Mahal


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The Taj Mahal’s iconic marble dome and soaring minarets require regular cleaning to maintain their dazzling appearance, and scientists now know why.
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The Taj Mahal’s iconic marble dome and soaring minarets require regular cleaning to maintain their dazzling appearance, and scientists now know why. Researchers from the United States and India are pointing the finger at airborne carbon particles and dust for giving the gleaming white landmark a brownish cast.

Knowing the culprits in the discoloration is just the first step in cleaning up the Taj Mahal. Scientists now must determine where the particles are coming from to develop strategies for controlling them.

College of Sciences Teams Up with Science Teacher to Bring STEM Education to American Indian Reservations


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Middle school teacher Nicole Collins is working with Georgia Tech faculty to develop lesson plans that will be available to teachers across the country.
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By Hannah Ackermann and Drake Lee-Patterson

 
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Nicole Collins
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