Atmospheric boundary layer scientist with over 20 years of experience in field work, data analysis, and modeling to understand earth-atmosphere interactions, in particular with regards to greenhouse gases. My focus has been understanding the temporal and spatial distribution of greenhouse gases (primarily carbon dioxide and methane) in the atmosphere, and relating these distributions to sources and sinks of these gases. The Mid-Continent Intensive (MCI) campaign in 2007 – 2009 focused on the U.S. corn belt and represented the first use of a regional network of tower carbon dioxide measurements to determine emissions via atmospheric methods. The Indianapolis Flux (INFLUX) project, beginning in 2010 and currently in operation, was the National Institute of Standards and Technology’s first urban testbed to utilize atmospheric methods to determine greenhouse gas emissions. Following projects in the Marcellus (2015 – 2017) and Permian (2020 – current) oil and natural gas basins applied related techniques to determine methane emissions. Throughout my career, my colleagues and I have been leaders in the development and implementation of new techniques to determine greenhouse gas emissions. Recent work has increasingly focused on utilizing flux measurements in urban settings and measurements of the atmospheric boundary layer conditions for the purpose of assessing and improving models. My work involves a wide variety of activities including deploying and maintaining field sites, laboratory-based calibration and testing, data processing, management, and advising students.