Talk Title:  Classification, implication, and parametrization of surface heterogeneity and its interaction with the dynamics of the lower atmosphere

Abstract:  Land-atmosphere exchange and atmospheric boundary layer dynamics over heterogeneous surfaces are of significance to a wide array of geophysical and engineering applications. Yet, despite over five decades of intense...

Talk Title: Rocky planet formation with primordial H2-rich atmospheres: Implications for Super-Earths, Sub-Neptunes and Earth

Abstract: Super-Earths and sub-Neptunes are the most abundant exoplanets discovered to date. Recent models of atmospheric evolution and erosion by core-powered mass loss and/or photo-evaporation suggest that these two populations of exoplanets might have been born as one. In my talk, I will explore the question as to how primary,...

Talk Titlte:  Wildfires and Climate

Abstract:  Wildfires and other types of biomass burning are a seasonal phenomenon in different land ecosystems around the world. These fires are estimated to consume biomass containing a total of 2-5 petagrams of carbon globally every year, generating heat energy and emitting smoke plumes that comprise different species of aerosols and trace...

Talk Title:  From Microbial to Global: What Mercury Stable Isotopes Can Tell us about Mercury Bioaccumulation

Abstract:  Mercury (Hg) stable isotopes have become a standard approach to study Hg sources and processes in the environment. Despite the power of these tools, applying Hg isotopes to understand source to receptor relationships can be difficult due to the myriad of...

Abstract: As more than 70% of fossil fuel-based carbon dioxide (CO2) is emitted in urban areas, urban greenhouse gas (GHG) emissions play a crucial role in achieving the emission reduction goals. In addition, air pollutants, such as nitrogen oxides (NOX), and particulate matter (PM) adversely affect urban air quality and are harmful to human health. In this talk, I will present new observational methods and modelling approaches to address two of the most urgent challenges of our time: climate change and air pollution.

I will present a novel...

Alissar Yehya, Baha and Walid Bassatne Department of Chemical Engineering and Advanced Energy, AUB, Beirut, Lebanon; Associate, John A. Paulson School of Engineering and Applied Sciences, Harvard University 

Title: Influence of fluid-assisted healing on fault permeability structure

Abstract:
Micro-cracks in fault damage zones can heal through diffusive mass transfer controlled by temperature and pressure. The diffusion of pore fluid pressure in fault damage zones...

Thomas Hudson, British Antarctic Survey

"Icequakes - What we can learn from sliding and cracking"