Konrad Steffen is the Director of CIRES, the largest research unit at the University of Colorado at Boulder. He has been a fellow of CIRES since 1991. He currently does research as part of the Center for the Study of Earth from Space (CSES). Koni's special interest is the study of processes related to climate and cryosphere interaction in polar and alpine regions based on in-situ and satellite measurements, and using climate system modeling to study their sensitivity. He has been actively involved in the assessment of global sea level change and sensitivity studies of large ice sheets using in situ and modeling results. For the past eight years he has been involved in organizing a NASA/NSF initiative called PARCA: Program in Regional Arctic Climate Assessment. Currently, Koni's research funding is supported by NASA Cryospheric Sciences, NASA/GSFC, and NSF/Arctic System Science for climate system modeling, remote sensing application related to ocean-climate-sea ice interactions, and LIDAR applications in the Arctic. He currently serves as Chairman for the World Climate Research Program ACSYS Observation Products Panel, Science Steering Committee member of the WMO Climate and Cryosphere project, Vice president of the International Commission for Snow and Ice (IAHS), and as a SEARCH science steering committee member.

Mon 06/23 | 9:15am
Greenland Ice Sheet and Dynamic Response to Global Warming

Graham Feingold's interests lie in aerosol-cloud-precipitation interactions and implications for climate change. His focus is on process level studies using high resolution models and observations (aircraft and surface remote sensing) at the cloud scale (10s of meters to 10s of kms). Graham has been a research scientist at NOAA's Earth System Research Laboratory for 17 years. His research interests include lidar and radar remote sensing of clouds and aerosol, modeling and remote sensing of aerosol-cloud interactions ("indirect effects"), "cloud burning" or the "semi-direct effect", and cloud processing of aerosol through multiphase chemistry. He has authored or co-authored more than 75 peer-reviewed articles on these subjects. His most recent work challenges the simple construct of the so called "second indirect effect" and attempts to delineate meteorological regimes with different cloud responses to aerosol. Graham is an associate editor of the online journal Atmospheric Chemistry and Physics (ACP), a member of the IGAC scientific steering committee, a contributor to the Climate Change Science Program, chapter author of the International Aerosol-Precipitation Scientific Assessment Project, and a NOAA representative to EarthCare. He is a member of the American Meteorological Society and the American Geophysical Union. He is a Fellow of CIRES and CIRA.

Wed 06/25 | 8:30am
The Influence of Aerosol on the Microphysical and Radiative Properties of Shallow Cumulus Clouds