Ray Bradley is Director of the Climate System Research Center at the University of Massachusetts, and a University Distinguished Professor in the Department of Geosciences. Ray is most famous for his efforts to reconstruct the temperature record over the last 1000 years. In this talk he looks at the issue of recent change and future change in the context of the past. His talk reviews how Milankovitch cycles explain a long and gradual decline in Arctic temperatures from the early Holocene, when orbital forcings were responsible for summertime temperatures approximately 2 degrees warmer th
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Professor Bill Boos explains plans for an April 17-18 workshop that convenes atmospheric dynamicists and social scientists from Asia, Africa, Australia and N. America to share their understanding of monsoons, continental scale weather systems upon which billions of people’s lives depend.
Ben Lintner is the atmospheric sciences graduate program director at Rutgers as well as an associate editor of Journal of Climate. His October 27, 2014 presentation at Yale focused on little understood fundamental aspects of the South Pacific Convergent Zone, (SPCZ), an area of intense deep convection and low-level convergence extending southeastward from the western Pacific warm pool into Southern Hemisphere mid-latitudes that is a dominant feature of the tropical Pacific.
Climate scientists and climate models are in agreement that hydro-climate around the world will change as a result of rising greenhouse gas emissions. Considering radiative forcing components only, dry places should get drier and wet ones wetter. Are these changes already underway, however, and what is the significance of these trends vs natural variability?
Project Director Ron Smith explains the nature of gravity waves, how they propagate high into the stratosphere and then collapse, creating Brewer-Dobson circulation cells that influence global weather. His international team of researchers spent most of the summer flying the night skies New Zealand to study the phenomenon.
Yale Professor Ken Gillingham welcomes participants in this YCEI sponsored workshop that brings together climate change scientists and economists whose modeling efforts hinge on the need to accommodate anticipated climate change in a warming world.
He sets the stage for the day’s conversations by reviewing the just released IPCC 5th Assessment Report, some of its findings, and the unique language that the IPCC uses to describe uncertainty in climate sensitivity, the key parameter that concerns economists and climate scientists.
Linda Mearns has served as lead or co-convening lead author on several Intergovernmental Panel on Climate Change reports and shared in the 2007 Nobel Peace prize. Mearns is director of the Weather and Climate Impacts Assessment Science Program and a senior scientist in NCAR’s Institute for Mathematics Applied to Geosciences.