Dr. Mark Zondlo

mzondlo@princeton.edu

Princeton University
Faculty Profile

Mark Zondlo is associate professor of Civil and Environmental Engineering, and associate director of external partnerships in the Andlinger Center for Energy and the Environment, both at Princeton University. Zondlo’s research interests include atmospheric chemistry, cloud microphysics and chemistry, atmosphere-surface fluxes of nitrogen, water, and carbon, aerosol particle chemistry and dynamics, global air pollution, and laser sensor development.

The focus of Mark’s project is to identify how remote sensing measurements of ammonia (NH3) can be used to help improve air quality forecasts of PM2.5, a criteria pollutant that has proven difficult to reduce in urban regions. Ammonia is a critical trace gas precursor for PM2.5 in many areas, yet its measurements and emissions are poorly constrained. Recent advances in satellite measurements of ammonia offer new opportunities to constrain emission inventories and help to develop mitigation pathways for improved PM2.5 reduction. The specific research objectives of this project are the following:

  1. To validate absolute column NH3 amounts from IASI and CrIS with a suite of insitu/ ground-based measurements under a range of environments (pollution, thermal contrast, surface properties such as sand, water) and at the single pixel scale.
  2. To demonstrate how individual (i.e. not co-averaged in space/time) satellite NH3 measurements can be used to help improve air quality forecasts, particularly with respect to short-term (daily/weekly) spatiotemporal variations.
  3. To link NH3 measurements at the individual overpass “snapshot” times with the broader temporal patterns of emissions/concentrations throughout the day/night.

In addition, he is contributing to the following Tiger Teams:

HAQAST Presentations

Spatiotemporal variability of ammonia through syntheses of in-situ-, ground-based, and remote sensing measurements

Air Quality at the Urban-Agricultural Interfaces

Spatiotemporal variability of ammonia from satellite

From Agricultural Ammonia to Volcanic Sulfur Satellite Measurements to Improve Emissions Inventories

Bridging scales with satellite and in-situ data: from agricultural ammonia to volcanic emissions

Publications

2019

Need for Improved Monitoring of Spatial and Temporal Trends of Reduced Nitrogen

Melissa A. Puchalski, John T. Walker, Gregory M. Beachley, Mark A. Zondlo, Katherine B. Benedict, Richard H. Grant, Bret A. Schichtel, Christopher M. Rogers, April B. Leytem, Joann Rice, Kristi Morris, James J. Schauer, and Rui Wang, The Magazine for Environmental Managers

 

2017

Vehicle Emissions as an Important Urban Ammonia Source in the United States and China

Kang Sun, Lei Tao, David J. Miller, Da Pan, Levi M. Golston, Mark A. Zondlo, Robert J. Griffin, H. W. Wallace, Yu Jun Leong, M. Melissa Yang, Yan Zhang, Denise L. Mauzerall, and Tong ZhuEnvironmental Science & Technology 

 

 

 

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