报告题目: Climate change and climate feedbacks: Will feedbacks save us from global warming?
讲座教授: Prof. Andrew Dessler
Department of Atmospheric Sciences
Texas A&M University
主 持 人：马耀明 研究员
地 点：中国科学院青藏高原研究所办公楼915会议室
时 间：2013年3月4日(星期一)15:00
简 介:
Andrew Dessler studies both the science and politics of climate change. His scientific research revolves around climate feedbacks, in particular how water vapor and clouds act to amplify warming from the carbon dioxide that humans emit. In 2012, he received the AGU’s Ascent Award from the atmospheric sciences section to reward exceptional achievement by a mid-career scientist. During the last year of the Clinton Administration, he served as a Senior Policy Analyst in the White House Office of Science and Technology Policy. Based on his research and policy experience, he has authored two books on climate change: The science and politics of global climate change: A guide to the debate (Cambridge University Press, 2006, 2010, cowritten with Edward Parson), and introduction to modern climate change (Cambridge University Press, 2011). In recognition of his work on outreach, in 2011 he was named a Google Science Communication Fellow. Prior to his work on climate, his research focused on stratospheric ozone depletion.
In this talk, he will examine the evidence for the canonical estimate of climate sensitivity (2-4.5°C for doubled CO2). It has been suggested by some “climate skeptics” that water vapor and clouds provide a strong negative feedback to the climate system — i.e., they act to stabilize our climate and prevent long-term warming in response to emissions of greenhouse gases. In this talk, he reviews recent work that his group has done on the water vapor and cloud feedbacks. Using direct measurements of water vapor and clouds, they find that these feedbacks are positive and do not stabilize our climate.
报告题目:Basic research in atmospheric physics-fundamentals, applications, and inspiration
讲座教授: Prof. Ping Yang (杨平)
Head of the Department of Atmospheric Sciences
Texas A&M University
主 持 人：马耀明 研究员
地 点：中国科学院青藏高原研究所办公楼915会议室
时 间：2013年3月4日(星期一)15:00
简 介:
Dr. Ping Yang is currently a professor and the department head of the Department of Atmospheric Sciences, Texas A&M University, College Station, TX. He is the holder of the David Bullock Harris Chair in Geosciences.
As of 2/13/2013, Ping Yang has published 205 peer-reviewed journal papers (citations=4304; H-index=35), 7 book chapters and 1 textbook. He is a fellow of the Optical Society of America (OSA) and a fellow of the American Meteorological Society (AMS). He currently serves as an associate editor for the Journal of the Atmospheric Sciences, the Journal of Quantitative Spectroscopy & Radiative Transfer, and the Journal of Applied Meteorology and Climatology, and is also on the Editorial Board (editor) for Theoretical and Applied Climatology.
This talk will be intended mainly for young scientists, particularly, graduate students. Firstly, he will share his view of the roadmap for academic growth. Secondly, he will review the evolution/advances in atmospheric optics and relevant applications to the study of dust aerosols and ice clouds. Thirdly, he will review Chandrasekhar’s academic career and tremendous achievements, particularly, in the development of radiative transfer theory (note, radiative transfer simulations are fundamental to remote sensing implementation and radiative forcing assessment involved in climate study).
