HOME >> BIOLOGY >> NEWS
Changing Continental Runoff Patterns Could Change Ocean Circulation

Denver, Colo. -- Human alteration of major waterways may cause more problems than drought downstream, according to a Penn State geologist who is studying circulation models of the ancient oceans.

"We have already seen some of the consequences of changing surface waterways," says Karen L. Bice, graduate student in geosciences. "The Colorado River barely flows to the ocean and the Aral Sea is drying up. We do have the capacity to alter the amounts of freshwater that run off into the oceans and that could alter ocean circulation patterns."

Bice, Dr. Eric J. Barron, professor of geosciences and director of Penn State's Earth System Science Center, and William H. Peterson, Earth System Science Center, are using a supercomputer-based General Circulation Model to look at the effects of continental runoff on ocean circulation patterns in the early Eocene about 55 million years ago when the Earth was substantially warmer than it is now.

The geography of the Eocene was different. The Tibetan plateau had not formed, India was the fastest moving continent and there was a large seaway in the subtropical middle latitudes called the Tethys Sea.

"What we found is that during the early Eocene, the oceans' deep water formation patterns may have been sensitive to variations in continental runoff," Bice told attendees today (Oct. 29) at the annual meeting of the Geological Society of America in Denver.

Researchers using the general circulation models have not previously considered continental runoff.

The reason that continental runoff can change ocean circulation patterns is that the fresh water running out of continental rivers decreases the salinity of the oceans' surface. Natural evaporation in the Tethys sea tended to increase the salinity of the surface water. Circulation in the oceans can be caused by colder water sinking below warmer water or saltier, denser water sinkin
'"/>

Contact: A'ndrea Elyse Messer
aem1@psuvm.psu.edu
814-865-9481
Penn State
29-Oct-1996


Page: 1 2 3

Related biology news :

1. Changing one gene launches new fly species
2. Changing the face of biology
3. Changing focus of traditional hospital rounds improves patient care
4. Changing global nitrogen cycle impacting human health, says Colorado University-led study
5. Changing fish body shapes give clues to environmental factors
6. Relationships in a Changing World -- call for papers
7. Changing colors in mice
8. Changing childrens diets today could reduce bone problems 70 years from now
9. If You Cant Stop Polluting, Try Changing The Weather Instead
10. USGS Finds Sea Otters At Risk From Killer Whales In A Changing Ocean
11. Corn Rootworm Changing Behavior, Posing New Threat To Crops

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/27/2021)... ... March 25, 2021 , ... Phlexglobal announced ... Planet Group, has selected Phlexglobal and its innovative regulatory SaaS software, PhlexSubmission, as ... a comprehensive review of five regulatory software companies, with the review team including ...
(Date:3/27/2021)... ... 25, 2021 , ... The 2021 Virtual Conference on Clinical Trial Supply-Europe ... More and more, clinical trial supply conferences are featuring speakers and forums that ... Asymmetrex’s founder and CEO, James L. Sherley, M.D., Ph.D., presented a talk ...
(Date:3/23/2021)... ... March 23, 2021 , ... G-CON Manufacturing (G-CON), the ... by Matica Biotechnology (Matica Bio), a contract development and manufacturing organization (CDMO) specializing ... the cleanroom build out for its new GMP production facility in College Station, ...
Breaking Biology News(10 mins):
(Date:3/27/2021)... ... March 24, 2021 , ... ... Life Sciences and Healthcare firms of all sizes, adds depth to its team ... specialist. Pardillo, who earned his doctorate in computational chemistry from Florida International University ...
(Date:3/27/2021)... ... March 24, 2021 , ... ABI Wellness, ... and reporting approach designed under CEO Mark Watson, today announced a webinar dedicated ... featuring guest speakers Dr. Cameron Clark, Neuropsychologist and Founder of Sharp Thinking, and ...
(Date:3/27/2021)... ... ... The Xtalks editorial team is pleased to announce the launch of the ... joined by editorial team members Ayesha Rashid, Sydney Perelmutter and Mira Nabulsi to discuss ... including insights from industry experts. , The Xtalks Life Science podcast will feature ...
(Date:3/23/2021)... Conn. (PRWEB) , ... March 23, 2021 , ... ... develops solutions for characterizing microbiome populations down to the strain level, recently unveiled ... applications. , Not all microbes are created equal: some are easy to ...
Breaking Biology Technology:
Cached News: