A5014184779- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Spectroscopy and Laser Applications
- Air Quality and Health Impacts
- Ionosphere and magnetosphere dynamics
- Atmospheric Ozone and Climate
- Vehicle emissions and performance
- Cloud Computing and Resource Management
- Air Quality Monitoring and Forecasting
- Combustion and flame dynamics
- Methane Hydrates and Related Phenomena
- Energy, Environment, and Transportation Policies
- Energy and Environment Impacts
- Coal Properties and Utilization
- Urban Transport and Accessibility
Lamont-Doherty Earth Observatory
2022-2024
Columbia University
2022-2024
Abstract. Accurately quantifying methane emissions from cities and understanding the processes that drive them are important for reaching climate mitigation goals. Methane New York City metropolitan area (NYCMA), most populous urban of United States, have consistently been underestimated by emission inventories compared to aircraft satellite observations. In this study, we used continuous rooftop measurements over 6 winter-to-spring transitions (January–May, 2019–2024) examine variability...
Abstract. Methane (CH4) is a strong greenhouse gas that has become the focus of climate mitigation policies in recent years. Ethane/methane ratios can be used to identify and partition different sources methane, especially areas with natural mixed biogenic methane emissions, such as cities. We assessed precision, accuracy, selectivity three commercially available laser-based analyzers have been marketed measuring instantaneous dry-mole fractions ethane ambient air. The Aerodyne SuperDUAL...
Abstract. Carbon monoxide (CO) is a regulated air pollutant that impacts tropospheric chemistry and an important indicator of the incomplete combustion carbon-based fuels. In this study, we used four years (2019–2022) winter spring (January–May) atmospheric CO observations to quantify characterize city-scale enhancements (ΔCO) from New York City metropolitan area (NYCMA). We observed large variability in ΔCO, roughly 60 % which was explained by transport surrounding surface areas measurement...
Table S1.Annual and monthly Emissions Database for Global Atmospheric Research (EDGAR) v6.1 CO emissions the New York City Metropolitan Area (NYCMA) study domain (NYC) subregion.The NYCMA area is 46.7×10 3 km 2 .The NYC 2.81×10 (6.0% of NYCMA).
Abstract. Carbon monoxide (CO) is a regulated air pollutant that impacts tropospheric chemistry and an important indicator of the incomplete combustion carbon-based fuels. In this study, we used 4 years (2019–2022) winter spring (January–May) atmospheric CO observations to quantify characterize city-scale enhancements (ΔCO) from New York City metropolitan area (NYCMA). We observed large variability in ΔCO, roughly 60 % which was explained by transport surrounding surface areas measurement...
Abstract. Methane (CH4) is a strong greenhouse gas that has become the focus of climate mitigation policies in recent years. Ethane / methane ratios can be used to identify and partition difference sources methane, especially areas with natural mixed biogenic emissions, such as cities. We assessed precision, accuracy selectivity three commercially available laser-based analyzers have been marketed measuring instantaneous dry mole fractions ethane ambient air. The Aerodyne SuperDUAL...