News aggregator

Ancient dry spells offer clues about the future of drought - Bio-medicine

Featured News - Thu, 05/21/2015 - 12:00
Dorothy Peteet, a paleoclimatologist also affiliated with NASA GISS and Columbia University, has uncovered evidence that shows far more severe droughts have occurred in the Northeast.

Stone tool discovery pushes back dawn of culture by 700,000 years - Guardian

Featured News - Wed, 05/20/2015 - 12:00
Features research done by Lamont-Doherty researcher Chris Lepre.

Scientists find world's oldest stone tools - CBS News

Featured News - Wed, 05/20/2015 - 12:00
Features research by Lamont-Doherty scientist Chris Lepre.

From granite to glacier: Rebuilding Antarctica’s Ice Age past - Medill Reports

Featured News - Wed, 05/20/2015 - 12:00
Long-form profile of Lamont geologist Mike Kaplan.

Global warming's 'missing' heat may be in the Indian Ocean -

Featured News - Wed, 05/20/2015 - 12:00
In line with the increases in Pacific winds, measurements by coauthor Arnold Gordon of Lamont-Doherty Earth Observatory show that flow through the main Indonesian channel, the Makassar Strait, has increased since the early 2000s.

Washington state declares drought emergency with $1.2bn in crops at risk - The Guardian

Featured News - Sat, 05/16/2015 - 12:00
The droughts in California and Washington are only the beginning, according to a study written by the scientists at the Columbia University’s Lamont-Doherty Earth Observatory. Jason Smerdon is quoted.

Is Warming Changing Boundaries of Hurricane Season? - Climate Central

Featured News - Tue, 05/12/2015 - 12:00
"We don't have a completely locked down answer," Suzana Camargo, a researcher at Columbia’s Lamont-Doherty Earth Observatory and co-author of a new model study on the issue, said.

Himalayas: Next Major Quake May Be West of Recent One - The News Today

Featured News - Mon, 05/11/2015 - 12:00
Quotes Lamont seismologist Colin Stark.

Anatomy of a Deglaciation - Antarctic Sun

Featured News - Mon, 05/11/2015 - 12:00
Profile of work by Lamont marine geologist Trevor Williams.

Messenger: End of Mission - MSNBC

Featured News - Sat, 05/02/2015 - 12:00
Quotes Lamont-Doherty Director Sean Solomon.


Geopoetry - Fri, 05/01/2015 - 12:19


MESSENGER's last image of Mercury. (NASA)

MESSENGER’s last image of Mercury. (NASA)


Alien orbits you plied,

While we vicariously spied

A distant globe …

Oh, tough little probe!

It’s been a wonderful ride.




Further reading:

MESSENGER’s last image

This is one in a series of posts by Katherine Allen, a researcher in geochemistry and paleoclimate at the Lamont-Doherty Earth Observatory and the Department of Marine and Coastal Sciences at Rutgers University.

Fiery End for Messenger Mission - Physics World

Featured News - Fri, 05/01/2015 - 12:00
Quotes Lamont-Doherty Director Sean Solomon.

Drones Fly Over Melting Arctic Ice for Science - Popular Science

Featured News - Fri, 05/01/2015 - 12:00
Article on work of Lamont researcher Chris Zappa.

Fixing The Climate Innovation Gap - Huffington Post

Featured News - Fri, 05/01/2015 - 12:00
Article by Peter DeMenocal.

Smooth Sailing Back to Tasmania

Melting Glaciers-Tracking Their Path - Fri, 05/01/2015 - 10:12
Antarctica, NBP1503 science team

The NBP1503 science team.

After a surprisingly smooth crossing of the Southern Ocean, with favorable winds we arrived back in Hobart, Tasmania. The weather maps show that we just got ahead of another big storm system.

Once the equipment is stored away and the samples are loaded off, we will all head back to our offices and labs to further process and analyze our data and eventually put all the results together.

Hawaiian Hot Spots Not to Blame for Underwater Volcanoes - Nature World News

Featured News - Wed, 04/29/2015 - 12:00
"People have ignored seafloor volcanoes on the idea that their influence is small - but that's because they are assumed to be in a steady state, which they're not," marine geophysicist Maya Tolstoy, who led the research, said in a statement.

What Nepal can teach about improving earthquake resilience in developing world - Christian Science Monitor

Featured News - Mon, 04/27/2015 - 12:00
The challenges fall into four broad groups, says Arthur Lerner-Lam, a seismologist who heads the Center for Hazards and Risk Research at Columbia University's Lamont-Doherty Earth Observatory in Palisades, N.Y.

NASA's Messenger Mission Is Set to Crash Into Mercury - New York Times

Featured News - Mon, 04/27/2015 - 12:00
Features Lamont director Sean Solomon.

Taking a 4,000-Meter-Deep Profile of Antarctic Waters

Melting Glaciers-Tracking Their Path - Mon, 04/27/2015 - 10:47
NB Palmer, West Antarctica, CTD system

The CTD system is lowered over the side from the NB Palmer. It measures temperature, salinity, and oxygen with depth.

In addition to understanding potential pathways for “warmer” circumpolar deep water to reach the ice shelf, we are also measuring what the structure and properties of the water column are and determining if there is already warmer water on or near the continental shelf that could already interact with the glaciers of East Antarctica today.

To measure water properties, we are using an instrument that can be lowered through the water column that measures conductivity, from which we calculate the salinity of the water, temperature, pressure (i.e. water depth), oxygen, and fluorescence, which is an indicator for phytoplankton or algae in the water. This system is called a CTD for short.

This system can also take water samples from different depths that can be used for further analysis or for calibration and verification of the sensors. When we lower this system in deep water, e.g. 4000 meters, (about 2.5 miles), the measurements take over three hours.

We have measured the water properties at 42 different locations during our expedition and will analyze the results carefully when we are back.

Follow @FrankatSea for additional updates and images from the Southern Ocean.



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