2015

2015 Dec 08

Harvard Climate Seminar

3:00pm to 4:00pm

Location: 

Lessin Lecture Hall at Maxwell Dworkin
"Exploring Global Warming with Climate Models of Various Complexity"

by Syukuro Manabe (Princeton University)

Dr. Manabe is a Senior Meteorologist at Princeton University, and one of the world’s leading scientists in numerical modeling of climate and climate change. For more than five decades Dr. Manabe worked at the Geophysical Fluid Dynamics Laboratory in Princeton, New Jersey, where he pioneered the use of computers to simulate global climate change and natural climate variations. These breakthroughs have helped provide the foundation Read more about Harvard Climate Seminar

2015 Oct 14

Special Climate Seminar: "Predicting rainfall change under global warming: New challenge for atmosphere-ocean dynamics"

4:00pm to 5:00pm

Location: 

Haller Hall (Geology Museum 102)

Speaker: Shang-Ping Xie (Scripps Institution of Oceanography)

Abstract:

Global mean temperature has risen for the past century and is projected to rise even more in response to the increasing atmospheric CO2 concentrations. Precipitation change is of vital importance to societies but precipitation projections are intrinsically challenging as they change sign from one region to another. Recent studies show that in the tropics, radiatively forced changes in precipitation and atmospheric Read more about Special Climate Seminar: "Predicting rainfall change under global warming: New challenge for atmosphere-ocean dynamics"

2015 Apr 28

Climate Seminar: "Uncertainty in climate change projections: the role of internal atmospheric circulation variability"

3:00pm to 4:00pm

Location: 

Haller Hall (GM 102)

Speaker: Dr. Clara Deser (NCAR/UCAR)

Abstract:

This talk will highlight the relative importance of internally-generated vs. externally-forced climate trends at local and regional scales over North America and Eurasia based on a 30-member ensemble of the Community Earth System Model over the period 1920-2100. Each member is subject to the same historical and future (RCP8.5) radiative forcing scenario, but starts from a slightly different atmospheric state. Unpredictable, intrinsic variability of the large-scale atmospheric Read more about Climate Seminar: "Uncertainty in climate change projections: the role of internal atmospheric circulation variability"

2015 Feb 12

Climate Seminar: "The Polar Oceans during the Ice Ages"

4:00pm to 5:00pm

Location: 

Haller Hall (Geology Museum)

Speaker: Dr. Gerald Haug (ETH Zurich)

Abstract:

We argue for a pervasive link between cold climates and polar ocean stratification. In both the Subarctic North Pacific and the Antarctic Zone of the Southern Ocean, ice ages were marked by low productivity. The accumulated evidence from sediment cores points to an increase in density stratification that reduced the supply of nutrients from the ocean interior into the sunlit surface in both Read more about Climate Seminar: "The Polar Oceans during the Ice Ages"