Sack Lunch Seminars

April 2nd: 12:10am but SPECIAL ROOM : 3rd floor, room 313 Robbie TOGGWEILER GFDL What the ice ages are trying to tell us about climate sensitivity ? Add to my calendar: ICS file or google
A new mechanism is proposed to explain the 100,000-yr time scale for variations in Antarctic temperatures and atmospheric CO2 over the last 650,000 years. It starts with fluctuations in the oceanic overturning around Antarctica that release CO2 up to the atmosphere… Check the full abstract here

April 9th: Natalie MAHOWALD Cornell University Representativeness of dust paleorecords Add to my calendar: ICS file or Google
Dust in ice cores, marine sediment core, terrestrial sediments or lake sediment records are widely used as indicators of climate and dustiness… Check the full abstract here

April 10th at 3pm EXTRA SEMINAR Harry BRYDEN NOC, Southampton Observing the Basin-Scale Atlantic Ocean Circulation	Add to my calendar: ICS file or Google
The Rapid monitoring programme along 26N offers unique measurements of top-to-bottom dynamic height profiles and bottom pressure on a daily basis, presenting an opportunity to examine the dynamics of the basin-scale ocean circulation. Why is the temporal… Check the full abstract here

April 16th: Dorian ABBOT Harvard A High-Latitude Convective Cloud Feedback and Equable Climates Add to my calendar: ICS file or Google
I will talk about a convective cloud feedback that may help to explain the warm high-latitude temperatures, especially during winter, of the “Equable Climate” of the late Cretaceous… Check the full abstract here

April 23rd: Claudia CENEDESE WHOI MIXING INDUCED IN OCEANIC OVERFLOWS AND DENSE GRAVITY CURRENTS: A NEW ENTRAINMENT PARAMETERIZATION
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April 30th Peter SCHLOSSER LDEO The freshwater balance of the Arctic Ocean: recent observations and links to lower latitudes
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Presently, the Arctic is undergoing system-scale environmental changes. These cross-domain changes affect the Arctic freshwater balance and its role in the link between the Arctic and the oceanic circulation in lower latitudes. In this presentation some of the observed and projected changes in the freshwater balance of the Arctic are reviewed and the possible implications for the oceanic circulation in lower latitudes are discussed.