Addressing Air Quality, Agriculture, and Climate Change across the Southwest and Southern Plains: A Roadmap for Research, Extension, and Policy

Dinan, Maude; Elias, Emile; Webb, Nicholas P.; Zwicke, Greg; Dye, Timothy S.; Aney, Skye; Brady, Michael P.; Brown, Joel R.; Dobos, Robert R.; DuBois, David W.; Edwards, Brandon L.; Heimel, Sierra; Luke, Nicholas; Rottler, Caitlin M.; Steele, C. M.

doi:10.1175/bams-d-21-0088.1

Bulletin of the American Meteorological Society

2021

DOI: 10.1175/bams-d-21-0088.1

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Addressing Air Quality, Agriculture, and Climate Change across the Southwest and Southern Plains: A Roadmap for Research, Extension, and Policy

Maude Dinan

Emile Elias

Nicholas P. Webb³

et al.

Abstract: Nearly sixty professionals from agricultural, environmental, and health sectors met to identify knowledge gaps and progress barriers within the agriculture-air quality-climate change nexus for the Southwest and Southern Plains regions. Discussion resulted in a roadmap of needs to navigate for policy, research, and land management.When.

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Utility of Geostationary Lightning Mapper-derived lightning NO emission estimates in air quality modeling studies

Cheng,

Pour-Biazar,

et al. 2024

Atmos. Chem. Phys.

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Abstract. Lightning is one of the primary natural sources of nitric oxide (NO), and the influence of lightning-induced NO (LNO) emission on air quality has been investigated in the past few decades. In the current study an LNO emissions model, which derives LNO emission estimates from satellite-observed lightning optical energy, is introduced. The estimated LNO emission is employed in an air quality modeling system to investigate the potential influence of LNO on tropospheric ozone. Results show that lightning produced 0.174 Tg N of nitrogen oxides (NOx = NO + NO2) over the contiguous US (CONUS) domain between June and September 2019, which accounts for 11.4 % of the total NOx emission. In August 2019, LNO emission increased ozone concentration within the troposphere by an average of 1 %–2 % (or 0.3–1.5 ppbv), depending on the altitude; the enhancement is maximum at ∼ 4 km above ground level and minimum near the surface. The southeastern US has the most significant ground-level ozone increase, with up to 1 ppbv (or 2 % of the mean observed value) difference for the maximum daily 8 h average (MDA8) ozone. These numbers are near the lower bound of the uncertainty range given in previous studies. The decreasing trend in anthropogenic NOx emissions over the past 2 decades increases the relative contribution of LNO emissions to total NOx emissions, suggesting that the LNO production rate used in this study may need to be increased. Corrections for the sensor flash detection efficiency may also be helpful. Moreover, the episodic impact of LNO on tropospheric ozone can be considerable. Performing backward trajectory analyses revealed two main reasons for significant ozone increases: long-distance chemical transport and lightning activity in the upwind direction shortly before the event.

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Utility of Geostationary Lightning Mapper-derived lightning NO emission estimates in air quality modeling studies

Cheng,

Pour-Biazar,

et al. 2024

Atmos. Chem. Phys.

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show abstract

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Addressing Air Quality, Agriculture, and Climate Change across the Southwest and Southern Plains: A Roadmap for Research, Extension, and Policy

Cited by 1 publication

References 8 publications

Utility of Geostationary Lightning Mapper-derived lightning NO emission estimates in air quality modeling studies

Utility of Geostationary Lightning Mapper-derived lightning NO emission estimates in air quality modeling studies

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