2020
DOI: 10.1029/2019jd031777
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Ozone Production in the Soberanes Smoke Haze: Implications for Air Quality in the San Joaquin Valley During the California Baseline Ozone Transport Study

Abstract: The Soberanes Fire burned 53,470 ha (132,127 acres) along the central California coast between 22 July and 12 October 2016, generating dense smoke and a variety of gaseous compounds that drifted eastward into the San Joaquin Valley Air Basin (SJVAB), an “extreme” nonattainment area for ozone (O3). These gases included nitrogen oxides (NOx) and volatile organic compounds, the photochemical precursors of O3. The fire started during the California Baseline Ozone Transport Study, a field campaign that brought airc… Show more

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Cited by 14 publications
(16 citation statements)
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References 69 publications
(90 reference statements)
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“…For example, O 3 lidar observations from a site in California's central valley during the coastal Soberanes fire in 2016 showed 40−60 ppbv of transported O 3 enhancement at 1−3 km that did not appreciably mix within the boundary layer to influence surface O 3 . 28 Similarly, aircraft measurements in California during the 2008 ARCTAS campaign found high levels of O 3 aloft from the mixing of urban and fire emissions. 29 Strategies to control urban O 3 production in the absence of smoke impacts have historically centered on analysis of VOC/ NO x sensitivity.…”
Section: Introductionmentioning
confidence: 93%
See 1 more Smart Citation
“…For example, O 3 lidar observations from a site in California's central valley during the coastal Soberanes fire in 2016 showed 40−60 ppbv of transported O 3 enhancement at 1−3 km that did not appreciably mix within the boundary layer to influence surface O 3 . 28 Similarly, aircraft measurements in California during the 2008 ARCTAS campaign found high levels of O 3 aloft from the mixing of urban and fire emissions. 29 Strategies to control urban O 3 production in the absence of smoke impacts have historically centered on analysis of VOC/ NO x sensitivity.…”
Section: Introductionmentioning
confidence: 93%
“…Boundary layer dynamics, transport, and mixing complicate the observed relationships between fire influence and O 3 . For example, O 3 lidar observations from a site in California’s central valley during the coastal Soberanes fire in 2016 showed 40–60 ppbv of transported O 3 enhancement at 1–3 km that did not appreciably mix within the boundary layer to influence surface O 3 . Similarly, aircraft measurements in California during the 2008 ARCTAS campaign found high levels of O 3 aloft from the mixing of urban and fire emissions …”
Section: Introductionmentioning
confidence: 99%
“…The UAH ozone lidar is affiliated with the Tropospheric Ozone Lidar Network (TOLNet, https://www-air.larc.nasa.gov/missions/TOLNet/). Under a collaborative protocol, the TOLNet lidars have demonstrated their feasibility and capability in fire studies (M. Johnson et al., 2016, 2021; Kuang et al., 2017; Langford et al., 2015, 2020; Reid et al., 2017; Strawbridge et al., 2018) and scientific projects (Gronoff et al., 2019; Leblanc et al., 2018; Sullivan et al., 2019). The continuous profiling of ozone and aerosols provides details missed by isolated measurements and is an asset for model evaluation by coordinating measurements (Langford et al., 2018, 2019).…”
Section: Introductionmentioning
confidence: 99%
“…The continuous profiling of ozone and aerosols provides details missed by isolated measurements and is an asset for model evaluation by coordinating measurements (Langford et al, 2018(Langford et al, , 2019. In addition, the ultraviolet (UV) backscatter (or extinction) profiles retrieved from ozone lidar can quantify the aerosol variability at the high spatiotemporal resolution, and these measurements serve as a tracer for fire smoke (Kuang et al, 2020;Langford et al, 2020). To our best knowledge, there has been little or no attempt to evaluate CTMs using this range-resolved UV aerosol optical product.…”
mentioning
confidence: 99%
“…Liu et al (2019) Thus, wildfire smoke has two roles in influencing the ABL dynamics: first, by attenuating the solar radiation that reaches the surface it reduces the surface heat fluxes weakening entrainment thereby decreasing the maximum ABL height, and second, it absorbs solar radiation warming the air in the ABL (and above) thereby offsetting the reduced surface heat fluxes in terms of its impact on air temperature. Figure S6 present the backscatter profile from Tunable Optical Profiler for Aerosol and Ozone lidar (TOPAZ) observed during the June -August observed during the California Baseline Ozone Transport Study (Langford et al, 2020;Faloona et al, 2020). The backscatter is seen to be much stronger in ABL, and to a lesser extent above (up to about 2,500 m), during the wildfire periods (left) compared to the background days (right).…”
mentioning
confidence: 99%