Abstract Title: Estimating short-lived air pollutant emissions in the United States using new generation satellite observations; OMI Collection 4 Formaldehyde Retrievals: Towards a Multi-Sensor, Multi-Satellite and Multi-Decadal Dataset; Formaldehyde Products from the Ozone Mapping and Profiler Suite (OMPS) Instruments on the Suomi-NPP and NOAA-20 Satellites; Global Observations of Total, Stratospheric, and Tropospheric BrO Columns from OMPS-NM onboard the Suomi NPP Satellite; Validation and intercomparison of five formaldehyde products from four satellites (TROPOMI, OMI, OMPS-NPP, and OMPS-N20) with FIREX-AQ and WE-CAN aircraft observations over the United States in fire seasons

Abstract Submitted to: ATMOSPHERIC SCIENCES

Abstract Text:

Here, I am providing the abstract in which I am the lead author (Abstract ID- 1173734)

Short-lived air pollutants such as NOx and VOCs are highly reactive and play important roles in tropospheric chemistry. In order to control the air quality, accurate information about their sources and sinks is needed. This study aims to provide a satellite-based emission estimate of short-lived species with a high spatial resolution in the United States. Using the new generation satellites observations, we calculate emissions directly from geophysical data fields in the level 2 files, such as the retrieved column amounts, and wind sampled from reanalysis. This approach is inspired by the flux divergence method but we re-derive the equations according to first principles and include important terms that were neglected by previous works. This study enables us to map out emissions of NOx and formaldehyde within the physical oversampling framework. The results reveal valuable information about various emission sources such as polluted cities, power plants, and interstate highways. To evaluate our study, we intercompare satellite-based emission estimates with independent measurements and emission inventories.

What Winning This Award Means to Me:

I am in the fourth year of my Ph.D. All the hard efforts I dedicated to my research in the past few years will be presented at the AGU Fall Meeting 2022. As I have contributed to 5 abstracts that are submitted to the AGU Fall Meeting 2022, I am extremely interested to attend the Fall Meeting 2022 and present my Ph.D. work to the AGU's brilliant community from all over the world and expand my professional network. I am so grateful to receive the AGU student travel grant which will support my attendance in this great event.