1
|
Lopez JP, Fridlind AM, Jost HJ, Loewenstein M, Ackerman AS, Campos TL, Weinstock EM, Sayres DS, Smith JB, Pittman JV, Hallar AG, Avallone LM, Davis SM, Herman RL. CO signatures in subtropical convective clouds and anvils during CRYSTAL-FACE: An analysis of convective transport and entrainment using observations and a cloud-resolving model. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006104] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
2
|
Angevine WM. An Integrated Turbulence Scheme for Boundary Layers with Shallow Cumulus Applied to Pollutant Transport. ACTA ACUST UNITED AC 2005. [DOI: 10.1175/jam2284.1] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
A scheme is described that provides an integrated description of turbulent transport in free convective boundary layers with shallow cumulus. The scheme uses a mass-flux formulation, as is commonly found in cumulus schemes, and a 1.5-order closure, involving turbulent kinetic energy and eddy diffusivity. Both components are active in both the subcloud and cloud layers. The scheme is called “mass flux–diffusion.” In the subcloud layer, the mass-flux component provides nonlocal transport. The scheme combines elements from schemes that are conceptually similar but differ in detail. An entraining plume model is used to find the mass flux. The mass flux is continuous through the cloud base. The lateral fractional entrainment rate is constant with height, while the detrainment-rate profile reduces the mass flux smoothly to zero at the cloud top. The eddy diffusivity comes from a turbulent kinetic energy–length scale formulation. The scheme has been implemented in a simple one-dimensional (single column) model. Results of simulations of a standard case that has been used for other model intercomparisons [Atmospheric Radiation Measurement (ARM), 21 June 1997] are shown and indicate that the scheme provides good results. The model also simulates the profile of a conserved scalar; this capability is applied to a case from the 1999 Southern Oxidants Study Nashville (Tennessee) experiment, where it produces good simulations of vertical profiles of carbon monoxide in a cloud-topped boundary layer.
Collapse
Affiliation(s)
- Wayne M. Angevine
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, and NOAA Aeronomy Laboratory, Boulder, Colorado
| |
Collapse
|
3
|
McKeen SA. Ozone production from Canadian wildfires during June and July of 1995. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd000697] [Citation(s) in RCA: 140] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
4
|
Lee YN, Zhou X, Kleinman LI, Nunnermacker LJ, Springston SR, Daum PH, Newman L, Keigley WG, Holdren MW, Spicer CW, Young V, Fu B, Parrish DD, Holloway J, Williams J, Roberts JM, Ryerson TB, Fehsenfeld FC. Atmospheric chemistry and distribution of formaldehyde and several multioxygenated carbonyl compounds during the 1995 Nashville/Middle Tennessee Ozone Study. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jd01251] [Citation(s) in RCA: 131] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
5
|
Frost GJ, Trainer M, Allwine G, Buhr MP, Calvert JG, Cantrell CA, Fehsenfeld FC, Goldan PD, Herwehe J, Hübler G, Kuster WC, Martin R, McMillen RT, Montzka SA, Norton RB, Parrish DD, Ridley BA, Shetter RE, Walega JG, Watkins BA, Westberg HH, Williams EJ. Photochemical ozone production in the rural southeastern United States during the 1990 Rural Oxidants in the Southern Environment (ROSE) program. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jd00881] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
6
|
Lin X, Trainer M, Hsie EY. A modeling study of tropospheric species during the North Atlantic Regional Experiment (NARE). ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jd00285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
7
|
Ridley BA, Walega JG, Lamarque JF, Grahek FE, Trainer M, Hübler G, Lin X, Fehsenfeld FC. Measurements of reactive nitrogen and ozone to 5-km altitude in June 1990 over the southeastern United States. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97jd03463] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
8
|
Russell A. REGIONAL PHOTOCHEMICAL AIR QUALITY MODELING:Model Formulations, History, and State of the Science. ACTA ACUST UNITED AC 1997. [DOI: 10.1146/annurev.energy.22.1.537] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
▪ Abstract Regional air quality models have been used for scientific investigation of trace species dynamics for over two decades and are now beginning to take a central position in air quality management. In particular, they have been used for studying the transport and fate of atmospheric acids, photochemical oxidants (e.g. ozone), and more recently, aerosols. Such models are based on numerically solving the mass conservation equations for a chemically interacting system of species and are applied to horizontal domains of 1000s of kms. Primary applications include assessing the response of pollutant concentrations to emissions controls, quantifying the flux of pollutants across and out of a region, and understanding the impact of specific processes on pollutant concentrations.
Collapse
Affiliation(s)
- Armistead Russell
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332
| |
Collapse
|
9
|
Lin X, Zaucker F, Hsie EY, Trainer M, McKeen SA. Radon 222 simulations as a test of a three-dimensional regional transport model. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96jd00100] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Wang Y, Tao WK, Pickering KE, Thompson AM, Kain JS, Adler RF, Simpson J, Keehn PR, Lai GS. Mesoscale model simulations of TRACE A and preliminary regional experiment for storm-scale operational and research meteorology convective systems and associated tracer transport. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96jd00933] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
11
|
Liu SC, McKeen SA, Hsie EY, Lin X, Kelly KK, Bradshaw JD, Sandholm ST, Browell EV, Gregory GL, Sachse GW, Bandy AR, Thornton DC, Blake DR, Rowland FS, Newell R, Heikes BG, Singh H, Talbot RW. Model study of tropospheric trace species distributions during PEM-West A. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/95jd02277] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
12
|
McKeen SA, Liu SC, Hsie EY, Lin X, Bradshaw JD, Smyth S, Gregory GL, Blake DR. Hydrocarbon ratios during PEM-WEST A: A model perspective. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/95jd02733] [Citation(s) in RCA: 125] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
13
|
Trainer M, Ridley BA, Buhr MP, Kok G, Walega J, Hübler G, Parrish DD, Fehsenfeld FC. Regional ozone and urban plumes in the southeastern United States: Birmingham, A case study. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95jd01641] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|