CSTPR Noontime Seminar
How Will The Fossil Fuel Era End?
by Antonia Juhasz, Investigative Journalist
Antonia Juhasz is a leading energy analyst, author, and investigative journalist specializing in oil. An award-winning writer, her articles appear in Rolling Stone, Harper’s Magazine, Newsweek, The Atlantic, CNN.com, The Nation, Ms. Magazine, The Advocate, Pacific Standard Magazine, and many more. Antonia is the author of three books: Black Tide (2011), The Tyranny of Oil (2008), and The Bush Agenda (2006).
Antonia is a 2019/2020 Ted Scripps Fellow at the Center for Environmental Journalism at the University of Colorado Boulder where she is writing a book on the end of the fossil fuel era. She is a 2017 Yale University Poynter Fellow in Journalism and a 2013 Investigative Journalism Fellow of the University of California, Berkeley. She holds a Masters Degree in Public Policy from Georgetown University and a Bachelors Degree in Public Policy from Brown University. Antonia founded and runs the (Un)Covering Oil Investigative Reporting Program with fiscal sponsor, the Society of Environmental Journalists.
NSIDC Cryosphere and Polar Science Seminar
Retrieving sea ice parameters from passive microwave measurements by Sang-Moo Lee, Post-doctoral Research Fellow, Dept. of Electrical, Computer, and Energy Engineering, CU Boulder.
Sea ice has been recognized as one of the most important geophysical parameters influencing the contemporary Earth’s weather and climate system. While sea ice coverages (e.g., sea ice concentration) have been successfully/continuously measured by space-borne passive microwave measurements, it is still difficult to obtain sea ice parameters such as emissivity, temperature, and refractive index, and so on. To address these challenges, we tried to do bulk modeling of sea ice microwave emission based on the combined Fresnel equation, which interlinks one component of Fresnel polarized reflectivity into the other.
This presentation will provide passive microwave-based algorithms for (i) retrieving sea ice emissivity, temperature, and refractive index, (ii) differentiating between first- and multiyear sea ice, (iii) surface and volume scatterings of a simplified sea ice system, and (iv) climate data record for 30-year snow-ice interface temperature. Finally, a simple climate analysis of 30-year sea ice temperature will be shown.
Bio: Sang-Moo Lee received a Ph.D. degree in School of Earth and Environmental Sciences from Seoul National University, Seoul, Republic of Korea, in 2018 and is currently a post-doctoral research fellow in the Department of Electrical, Computer and Energy Engineering at the University of Colorado Boulder. Sang-Moo Lee focuses on the research of passive microwave remote sensing and radiative transfer modeling.