A5037879423- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Climate variability and models
- Remote Sensing in Agriculture
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Geophysics and Gravity Measurements
- Atmospheric aerosols and clouds
- Air Quality and Health Impacts
- Horticultural and Viticultural Research
- Environmental Quality and Pollution
- Air Quality Monitoring and Forecasting
- Carbon Dioxide Capture Technologies
- Gamma-ray bursts and supernovae
- Astronomy and Astrophysical Research
- Fire effects on ecosystems
- Integrated Energy Systems Optimization
- Seismic Waves and Analysis
- Geomagnetism and Paleomagnetism Studies
- Spectroscopy and Laser Applications
- Astronomical Observations and Instrumentation
- Impact of Light on Environment and Health
- Ionosphere and magnetosphere dynamics
- Tropical and Extratropical Cyclones Research
- Environmental Impact and Sustainability
University of Michigan
2014-2023
Michigan United
2020-2023
Los Alamos National Laboratory
2015-2017
Environmental Earth Sciences
2014
Abstract Wildfires emit significant amounts of pollutants that degrade air quality. Plumes from three wildfires in the western U.S. were measured aircraft during Studies Emissions and Atmospheric Composition, Clouds Climate Coupling by Regional Surveys (SEAC 4 RS) Biomass Burning Observation Project (BBOP), both summer 2013. This study reports an extensive set emission factors (EFs) for over 80 gases 5 components submicron particulate matter (PM 1 ) these temperate wildfires. These include...
Wildfires are important contributors to atmospheric aerosols and a large source of emissions that impact regional air quality global climate. In this study, the nearfield influences wildfire on ambient aerosol concentration chemical properties in Pacific Northwest region United States were studied using real-time measurements from fixed ground site located Central Oregon at Mt. Bachelor Observatory (∼2700 m a.s.l.) as well near their sources an aircraft. The characteristics biomass burning...
Significance Climate change and air pollution caused by fossil-energy-related CO 2 NO x emissions is a capstone societal issue. A critical barrier to an international treaty aimed toward controlling the inability verify inventories reduction of claimed individual nations following implementation new technologies. We demonstrate for first time, our knowledge, that simultaneous remote observations , regional column enhancements can be made with high fidelity frequency. These then used identify...
Interannual variability (IAV) in ecosystem productivity may reveal vulnerabilities of vegetation to climate stressors. We analyzed IAV northern hemisphere ecosystems using several remote sensing datasets, including longstanding observations the normalized difference index (NDVI) and more novel metrics for solar-induced chlorophyll fluorescence (SIF) near-infrared reflectance (NIRv). Although previous studies have suggested SIF better tracks variations at seasonal timescales, we found that...
Across temperate North America, interannual variability (IAV) in gross primary production (GPP) and net ecosystem exchange (NEE) their relationship with environmental drivers are poorly understood. Here, we examine IAV GPP NEE to using two state-of-the-science flux products: constrained by surface space-based atmospheric CO
Earth system models are intended to make long-term projections, but they can be evaluated at interannual and seasonal time scales. Although the Community System Model (CESM2) showed improvements in a number of terrestrial carbon cycle benchmarks, relative its predecessor, our analysis suggests that variability (IAV) net fluxes did not show similar improvements. The model simulated low IAV ecosystem production (NEP), resulting weaker than observed sensitivity climate variability. Low likely...
Abstract Global observations of solar‐induced chlorophyll fluorescence (SIF) are available from multiple satellite platforms, and SIF is increasingly used as a proxy for photosynthetic activity ecosystem productivity. Because the relationship between gross primary productivity (GPP) depends on variety factors including type environmental conditions, it necessary to study across various spatiotemporal scales ecosystems. To explore how signals relate over temperate deciduous forest, we...
Abstract We present a case study based on balloon‐borne ozone measurements during the SouthEast American Consortium for Intensive Ozonesonde Network Study in August–September 2013. Data from Socorro, NM (34°N, 107°W) show layer of anomalously low upper troposphere (UT) 8–14 August. Back trajectories, UT jet analyses, and data Microwave Limb Sounder (MLS) Aura satellite indicate that this feature originated marine boundary eastern/central tropical Pacific, where several disturbances one...
Across temperate North America, interannual variability (IAV) in gross primary production (GPP) and net ecosystem exchange (NEE), their relationship with environmental drivers, are poorly understood. Here, we examine IAV GPP NEE to drivers using two state-of-the-science flux products: constrained by surface space-based atmospheric CO2 measurements over 2010–2015 satellite up-scaled from FluxSat 2001-2017. We show that the arid western half of America provides a larger contribution (104%...
Abstract Clouds can modify terrestrial productivity by reducing total surface radiation and increasing diffuse radiation, which may be more evenly distributed through plant canopies increase ecosystem carbon uptake (the “diffuse fertilization effect”). Previous work at ecosystem-level observational towers demonstrated that photosynthetically active (PAR; 400–700 nm) increases with cloud optical thickness (COT) until a COT of approximately 10, defined here as the “low-COT regime.” To identify...
Across temperate North America, interannual variability (IAV) in gross primary production (GPP) and net ecosystem exchange (NEE), their relationship with environmental drivers, are poorly understood. Here, we examine IAV GPP NEE to drivers using two state-of-the-science flux products: constrained by surface space-based atmospheric CO2 measurements over 2010–2015 satellite up-scaled from FluxSat 2001-2017. We show that the arid western half of America provides a larger contribution (104%...