Large-Eddy Simulations of Oil Droplet Aerosol Transport in the Marine Atmospheric Boundary Layer

Li, Meng; Zhao, Ze; Pandya, Yajat; Iungo, Giacomo Valerio; Yang, Di

doi:10.3390/atmos10080459

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…They show that the presence of oil slicks and dispersant alter the splashing and aerosol generation processes, and that the number of microdroplets increases both with oil layer thickness and with addition of dispersants. Second, M. Li et al (2019) apply a wave-effect-resolving LES to simulate the transport of oil droplet aerosols by wind over surface waves in the marine atmospheric boundary layer. They show that wind considerably enhances oil droplet suspension and both vertical and lateral spreading, and that the spatial distribution of aerosols exhibits significant streamwise variations.…”

Section: Aerosolization Of Oilmentioning

confidence: 99%

Physical Transport Processes that Affect the Distribution of Oil in the Gulf of Mexico: Observations and Modeling

Boufadel¹,

Bracco

Chassignet³

et al. 2021

Oceanog

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Physical transport processes such as the circulation and mixing of waters largely determine the spatial distribution of materials in the ocean. They also establish the physical environment within which biogeochemical and other processes transform materials, including naturally occurring nutrients and human-made contaminants that may sustain or harm the region’s living resources. Thus, understanding and modeling the transport and distribution of materials provides a crucial substrate for determining the effects of biological, geological, and chemical processes. The wide range of scales in which these physical processes operate includes microscale droplets and bubbles; small-scale turbulence in buoyant plumes and the near-surface “mixed” layer; submesoscale fronts, convergent and divergent flows, and small eddies; larger mesoscale quasi-geostrophic eddies; and the overall large-scale circulation of the Gulf of Mexico and its interaction with the Atlantic Ocean and the Caribbean Sea; along with air-sea interaction on longer timescales. The circulation and mixing processes that operate near the Gulf of Mexico coasts, where most human activities occur, are strongly affected by wind- and river-induced currents and are further modified by the area’s complex topography. Gulf of Mexico physical processes are also characterized by strong linkages between coastal/shelf and deeper offshore waters that determine connectivity to the basin’s interior. This physical connectivity influences the transport of materials among different coastal areas within the Gulf of Mexico and can extend to adjacent basins. Major advances enabled by the Gulf of Mexico Research Initiative in the observation, understanding, and modeling of all of these aspects of the Gulf’s physical environment are summarized in this article, and key priorities for future work are also identified.

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Section: Aerosolization Of Oilmentioning

confidence: 99%

Physical Transport Processes that Affect the Distribution of Oil in the Gulf of Mexico: Observations and Modeling

Boufadel¹,

Bracco

Chassignet³

et al. 2021

Oceanog

View full text Add to dashboard Cite

show abstract

“…M. Li et al (2019) developed a hybrid large-eddy model to simulate the transport of aerosolized oil droplets (2.5, 40, 60, and 100 µm diameter) over progressive water waves. The model employs a hybrid spectral and finite-difference method for simulating wind turbulence, a bounded finite-volume method for modeling aerosolized oil transport, and a wave-following coordinate system and computational grid to capture the flow fields adjacent to the waves.…”

Section: Advancements In Studying Health Risks From Inhaled Spill Toxinsmentioning

confidence: 99%

Technological Developments Since the Deepwater Horizon Oil Spill

Dannreuther¹,

Halpern²,

Rullkötter³

et al. 2021

Oceanog

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The Gulf of Mexico Research Initiative (GoMRI) program funded research for 10 years following the Deepwater Horizon incident to address five themes, one of which was technology developments for improved response, mitigation, detection, characterization, and remediation associated with oil spills and gas releases. This paper features a sampling of such developments or advancements, most of which cite studies funded by GoMRI, but we also include several developments that occurred outside this program. We provide descriptions of new techniques or the novel application or enhancement of existing techniques related to studies on the evolution of the subsurface oil plume, the collection of data on ocean currents to support oil transport modeling, and oil spill modeling. We also feature developments related to the interactions of oil with particulate matter and microbial organisms, sampling for studies and analysis of biogeochemical processes related to oil fate, human health risks from inhalation of oil spill chemicals, impacts on marine life, and alternative dispersant technologies to Corexit®. Many of the techniques featured here have contributed to complementary or subsequent research and have applications beyond oil spill research that can contribute to a wide range of scientific endeavors.

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“…Unlike high-resolution large-eddy simulations (LES; with grid spacing of ;1-100 m) that resolve turbulence (e.g., Momen and Bou-Zeid 2016;Salesky et al 2016;Momen et al 2018;Li et al 2019), NWP models have to entirely parameterize turbulent fluxes due to their larger grid sizes (;1-30 km) that cannot resolve turbulence. Recent observations and LESs have shown that there are significant distinctions between hurricane turbulence and regular atmospheric boundary layer (ABL) turbulence (Zhang et al 2009;Zhang 2010;Zhang et al 2011Zhang et al , 2017Momen et al 2021;Chen 2022).…”

Section: Introductionmentioning

confidence: 99%

The Impacts of Adjusting Momentum Roughness Length on Strong and Weak Hurricane Forecasts: A Comprehensive Analysis of Weather Simulations and Observations

Zhang

Matak

et al. 2023

Monthly Weather Review

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The momentum roughness length (z0) significantly impacts wind predictions in weather and climate models. Nevertheless, the impacts of z0 parameterizations in different wind regimes and various model configurations on the hurricane size, intensity, and track simulations have not been thoroughly established. To bridge this knowledge gap, a comprehensive analysis of 310 simulations of 10 real hurricanes using the Weather Research and Forecasting (WRF) model is conducted in comparison with observations. Our results show that the default z0 parameterizations in WRF perform well for weak (category 1-2) hurricanes; however, they underestimate the intensities of strong (category 3-5) hurricanes. This finding is independent of model resolution or boundary layer schemes. The default values of z0 in WRF agree with the observational estimates from dropsonde data in weak hurricanes while they are much larger than observations in strong hurricanes regime. Decreasing z0 close to the values of observational estimates and theoretical hurricane intensity models in high wind regimes (≳ 45 m s-1) led to significant improvements in the intensity forecasts of strong hurricanes. A momentum budget analysis dynamically explained why the reduction of z0 (decreased surface turbulent stresses) leads to stronger simulated storms.

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Large-Eddy Simulations of Oil Droplet Aerosol Transport in the Marine Atmospheric Boundary Layer

Cited by 5 publications

References 39 publications

Physical Transport Processes that Affect the Distribution of Oil in the Gulf of Mexico: Observations and Modeling

Physical Transport Processes that Affect the Distribution of Oil in the Gulf of Mexico: Observations and Modeling

Technological Developments Since the Deepwater Horizon Oil Spill

The Impacts of Adjusting Momentum Roughness Length on Strong and Weak Hurricane Forecasts: A Comprehensive Analysis of Weather Simulations and Observations

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