Despite their climatic importance, multi-scale models continue to have persistent biases produced by insufficient representation of convective clouds. To increase our understanding of convective cloud lifecycles and aerosol-convection interactions, the TRacking Aerosol Convection interactions ExpeRiment (TRACER) will take place in the Houson, TX region from April 2021 through April 2022 with an intensive observation period from June to September 2022.
In this presentation, Dr. Bajgain will focus on quantifying biophysical and biogeochemical feedbacks of ecosystems to climate and management variability using field observations (eddy covariance and automated chamber), remote sensing data, and process-based modeling approaches.
In this seminar, Michael Ricketts will present an overview of his research including 1) soil bacterial community dynamics in a forest suffering ash tree decline; 2) Arctic soil bacterial responses to permafrost thaw and variations in soil chemistry; and 3) Arctic soil microbial community and functional responses to artificially increased snow accumulation in situ and associated vegetation shifts.
Robust ecosystem service markets require scientifically advanced biogeochemical modeling with geospatial tools to capture the spatial variability of nutrient cycling and greenhouse gas emissions. Experience from carbon markets has highlighted the technical challenge of implementing these advanced tools at low cost to reduce the transaction costs for serving the markets. This seminar will present an overview of tools to address the technical challenges and summarize current efforts to map soil health at scale and to support ecosystem service markets.
Sitting on the most active basin in terms of tropical cyclone activity, the Philippines is susceptible to strong and frequent typhoons, as well as enhanced monsoon rains and severe thunderstorms. These conditions raise a need for accurate rainfall estimates with high spatial and temporal resolution. With the (relatively) new radar network in the Philippines, how well can we estimate rainfall and how can we improve it? What is the role of open-source software in Philippine radars?
A constellation of NASA satellites orbiting Earth enables us to estimate air pollution in locations where there are no monitors. This presentation will discuss new satellite instruments and algorithm improvements that greatly enhance our ability to monitor air pollution from space.
Founded as part of the Manhattan Project, the Hanford Site has played a vital role in the Nation's nuclear weapons and energy production missions. Today, Hanford poses one of the most technically, financially, and socioeconomically difficult cleanup challenges in the world. This presentation will provide a brief history and overview of current and future Hanford remediation and waste treatment efforts, and highlight unique scientific and technical challenges therein.
Darwin (on the coast of northern Australia) sits in a mixed Monsoon/Equatorial region. This leads to clearly defined forcing regimes, perfect for testing links between large-scale forcing and atmospheric response. The C-band dual-polarization CPOL radar collected data from 1998 to 2017 providing a dataset where the underlying statistics of convection can be examined.
Math and soils may seem worlds apart. However, mathematical models and computer simulations are a critical tool to help understand our changing world. Soil carbon dynamics are a significant source of natural carbon dioxide (a major driver of climate change) and are expected to increase as temperatures warm. By blending math with soil science, we try to peer into the future to anticipate how human-emitted carbon dioxide will affect our crops and cities.
In this presentation, professor Berhe will discuss why and how soil erosion can constitute a C sink by: (a) defining the criterion necessary for erosion to constitute a C sink; (b) comparing the rates of soil organic matter decomposition at eroding and depositional settings; and (c) identifying the potential for soils to provide protective surfaces (physical and chemical stabilization mechanisms) for soil organic matter in dynamic landscapes.