According to a Johns Hopkins earth scientist, the hole in the Antarctic ozone layer has caused changes in the way that waters in those southern oceans mix – a situation that has the potential to alter the amount of CO2 in the atmosphere and eventually could have an impact on global climate change. In a paper published in today’s issue of the journal Science, Darryn W. Waugh and his team show that subtropical intermediate waters in the southern oceans have become “younger” as the upwelling, circumpolar waters have gotten “older” – changes that are consistent with the fact that surface winds have strengthened as the ozone layer has thinned.
Recent news from The Johns Hopkins University
This section contains regularly updated highlights of the news from around The Johns Hopkins University. Links to the complete news reports from the nine schools, the Applied Physics Laboratory and other centers and institutes are to the left, as are links to help news media contact the Johns Hopkins communications offices.
Before the program ended on September 30, Johns Hopkins received $260 million in National Institutes of Health and National Science Foundation research grants through the American Recovery and Reinvestment Act of 2009, also known as the federal stimulus act or ARRA.
Using a $736,000 grant administered through the federal stimulus act, Johns Hopkins earth scientist Thomas Haine is working with researchers at the Massachusetts Institute of Technology to develop what promises to be the biggest, most cutting-edge and detailed computer model of ocean currents ever made. The supercomputer model, which will be run by a National Science Foundation–built supercomputer capable of doing a million billion calculations per second, will simulate currents in the Arctic, Antarctic and Atlantic oceans in hopes of shedding light on how small-scale turbulent eddies affect large currents, such as the powerful Gulf Stream.