About Me
Hi! My name is Zolal Ayazpour. I am a PhD candidate working with
Dr. Kang Sun
in the Environmental Engineering Department at
University at Buffalo.
Since May 2020, I have been working as a visiting PhD student and predoctoral fellow with
the Atmospheric Measurement group
at
Harvard-Smithsonian Center for Astrophysics
under the supervision of
Dr. Gonzalo González Abad
and
Dr. Caroline Nowlan.
My research interest is to study the chemistry and physics of the Earth's atmosphere.
Using satellite observations, I work on developing algorithms to retrieve trace gas column densities
and estimate short-lived air pollutant emissions. I am also interested in applying data-driven and
machine learning approaches to discover new insights into atmospheric features that lack comprehensive
global measurements.
[Curriculum Vitae]
Research
My Ph.D. work so far focuses on:
• Estimating NOx emissions from power generating facilities in the US using satellite observations and comparing with ground-based measurements
• Development of algorithms to retrieve formaldehyde column density from reflected sunlight in space
• Uncertainty quantification and validation of satellite retrieval product with global, ground-based sensor networks
• Development of spatially complete planetary boundary layer height product over the US using an observational data-driven approach
• Study of spatial and temporal variability of ozone sensitivity over the Middle East observed by TROPOMI satellite instrument
Publications
• Z. Ayazpour, G. González Abad, C. R. Nowlan, K. Sun, H. A. Kwon, C. C. Miller, H. Chong, H. Wang, X. Liu, K. Chance, E. O’Sullivan, L. Zhu, C. Vigouroux, I. De Smedt, et al. (2024). Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Product. [preprint for Earth and Space Science]. DOI: 10.22541/essoar.171804891.19520982/v1.
• H. A. Kwon, G. González Abad, C. C. Miller, K. Hall, C. R. Nowlan, E. O’Sullivan, H. Wang, H. Chong, Z. Ayazpour, X. Liu, K. Chance (2024). Updated OMI Glyoxal Column Measurements using Collection 4 Level 1B Radiances. [submitted to Earth and Space Science].
• J. Liao, G. M. Wolfe, A. E. Kotsakis, J. M. Nicely, J. M. St. Clair, T. F. Hanisco, G. González Abad, C. R. Nowlan, Z. Ayazpour, I. De Smedt, E. C. Apel, and R. S. Hornbrook (2024). Validation of formaldehyde products from three satellite retrievals (OMI SAO, OMPS-NPP SAO, and OMI BIRA) in the marine atmosphere with four seasons of ATom aircraft observations. [preprint for Atmospheric Measurement Techniques]. DOI: 10.5194/amt-2024-72.
• H. Wang, G. González Abad, C. C. Miller, H. A. Kwon, C. R. Nowlan, Z. Ayazpour, H. Chong, X. Liu, K. Chance, E. O'Sullivan, K. Sun, R. Spurr, and R. J. Hargreaves (2023). Development of the MEaSUREs blue band water vapor algorithm – Towards a long-term data record. [preprint for Atmospheric Measurement Techniques]. DOI: 10.5194/amt-2023-66.
• T. Zhao, J. Mao, Z. Ayazpour, G. González Abad, C. R. Nowlan, and Y. Zheng (2024). Interannual variability of summertime formaldehyde (HCHO) vertical column density and its main drivers at northern high latitudes. Atmospheric Chemistry and Physics, 24, 6105–6121. DOI: 10.5194/acp-24-6105-2024.
• H. Chong, G. González Abad, C. R. Nowlan, C. C. Miller, A. Saiz-Lopez, R. P. Fernandez, H. A. Kwon, Z. Ayazpour, H. Wang, A. H. Souri, X. Liu, K. Chance, E. O'Sullivan, J. Kim, J. H. Koo, W. R. Simpson, F. Hendrick, R. Querel, G. Jaross, C. Seftor, and R. M. Suleiman (2024). Global retrieval of stratospheric and tropospheric BrO columns from the Ozone Mapping and Profiler Suite Nadir Mapper (OMPS-NM) on board the Suomi-NPP satellite. Atmospheric Measurement Techniques, 17, 2873–2916. DOI: 10.5194/amt-17-2873-2024.
• D. C. Anderson, B. N. Duncan, J. Liu, J. M. Nicely, S. A. Strode, M. B. Follette-Cook, A. H. Souri, J. R. Ziemke, G. González Abad, and Z. Ayazpour (2024). Trends and Interannual Variability of the Hydroxyl Radical in the Remote Tropics During Boreal Autumn Inferred From Satellite Proxy Data, Geophysical Research Letters, 51, e2024GL108531. DOI: 10.1029/2024GL108531.
• C. R. Nowlan, G. González Abad, H. A. Kwon, Z. Ayazpour, C. C. Miller, K. Chance, H. Chong, X. Liu, E. O'Sullivan, H. Wang, L. Zhu, I. De Smedt, G. Jaross, C. Seftor, and K. Sun (2023). Global Formaldehyde Products from the Ozone Mapping and Profiler Suite (OMPS) Nadir Mappers on Suomi NPP and NOAA-20. Earth and Space Science, 10, e2022EA002643. DOI: 10.1029/2022EA002643.
• C. Howlett, G. González Abad, C. C. Miller, C. R. Nowlan, Z. Ayazpour, and L. Zhu (2023). The influence of snow cover on Ozone Monitor Instrument formaldehyde observations. Atmósfera, 37, 159–174. DOI: 10.20937/ATM.53134.
• Z. Ayazpour, S. Tao, D. Li, A. J. Scarino, R. E. Kuehn, and K. Sun (2022). Estimates of spatially complete, observational data-driven planetary boundary layer height over the contiguous United States. Atmospheric Measurement Techniques, 16, 563–580. DOI: 10.5194/amt-2022-235.
• Z. Ayazpour, A. E. Bakhshipour, U. Dittmer (2019). Combined Sewer Flow Prediction Using Hybrid Wavelet Artificial Neural Network Model. In: Mannina, G. (eds) New Trends in Urban Drainage Modelling. International conference on urban drainage modelling 2018, Springer, p. 693–8. DOI: 10.1007/978-3-319-99867-1_120.
• Z. Ayazpour, G. González Abad, C. R. Nowlan, K. Sun, H. A. Kwon, C. C. Miller, H. Chong, H. Wang, X. Liu, K. Chance, E. O’Sullivan, L. Zhu, C. Vigouroux, I. De Smedt, et al., Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Product, OMI-TROPOMI Meeting, Boulder, CO, June 2024.
• Z. Ayazpour, K. Sun, C. R. Nowlan, and G. González Abad, Quantification of NOx Emissions from Power-Generating Facilities over the US using Satellite Observations and intercomparison with Ground Measurements, AGU Fall Meeting, San Francisco, CA, December 2023.
• Z. Ayazpour, G. González Abad, C. R. Nowlan, H. A. Kwon, C. C. Miller, H. Chong, K. Sun, E. O'Sullivan, H. Wang, X. Liu, K. Chance, A Consistent Long-Term Global Data Record of Formaldehyde from UV-Visible Satellite Instruments, AGU Fall Meeting, San Francisco, CA, December 2023.
• Z. Ayazpour, K. Sun, C. R. Nowlan, and G. González Abad, Estimating Short-lived Air Pollutant Emissions in the United States Using New Generation Satellite Observations, AGU Fall Meeting, Chicago, IL, December 2022.
• Z. Ayazpour, K. Sun, S. Tao, and D. Li, Estimates of spatially complete, observational data-driven planetary boundary layer height over the contiguous United States, TEMPO Science Team Meeting (virtual), June 2022.
• Z. Ayazpour, K. Sun, C. C. Miller, C. R. Nowlan, E. O'Sullivan, and G. González Abad, Aura Ozone Monitoring Instrument (OMI) Version-4 Formaldehyde Product, AGU Fall Meeting, New Orleans, LA, December 2021.
• Z. Ayazpour, K. Sun, C. C. Miller, C. R. Nowlan, E. O'Sullivan, and G. González Abad, Improving the Spectral Fit of NASA's OMI Formaldehyde Operational Product, AGU Fall Meeting (virtual), December 2020.
• Z. Ayazpour and K. Sun, TROPOMI Observations of the Atmospheric Composition over the Middle East, AMS Annual Meeting, Boston, MA, January 2020.
• Z. Ayazpour and K. Sun, High-Resolution Satellite Remote Sensing of the Atmospheric Composition over the Middle East, AGU Fall Meeting, San Francisco, CA, December 2019.
• Z. Ayazpour, A. E. Bakhshipour, and U. Dittmer, Combined sewer flow prediction using hybrid wavelet artificial neural network model, Urban Drainage Modeling Conference, Palermo, Italy, September 2018.