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Niang C, Mancho AM, García-Garrido VJ, Mohino E, Rodriguez-Fonseca B, Curbelo J. Transport pathways across the West African Monsoon as revealed by Lagrangian Coherent Structures. Sci Rep 2020; 10:12543. [PMID: 32719398 PMCID: PMC7385109 DOI: 10.1038/s41598-020-69159-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 06/23/2020] [Indexed: 11/17/2022] Open
Abstract
The West African Monsoon (WAM) system is the main source of rainfall in the agriculturally based region of the Sahel. Understanding transport across the WAM is of crucial importance due to the strong impact of humidity and dust pathways on local cloud formation. However, the description of this transport is challenging due to its 3D complex nature. Lagrangian Coherent Structures (LCS) simplify transport description across the WAM by providing a geometrical partition of the troposphere into domains. Air parcels within each domain have similar dynamical characteristics. LCS make it possible to achieve an integrated vision of transport pathways across this system. Using this approach we unveil new connections in the WAM system. In particular, we identify transport pathways between the Tropical Easterly Jet (TEJ) and the African Easterly Jet (AEJ). Furthermore, the clockwise circulation associated with the divergent upper part of the Sahara heat low is clearly delimitated. Additionally, we show the presence of mixing regions in the AEJ and the lower part of the TEJ that are linked to pathways to sources of dust and humidity.
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Affiliation(s)
- Coumba Niang
- Instituto de Ciencias Matemáticas, Consejo Superior de Investigaciones Científicas (CSIC), C/ Nicolás Cabrera 15, Campus de Cantoblanco, 28049, Madrid, Spain.,Laboratoire de Physique de l'Atmosphére et de l'Océan Simón Fongang (LPAO-SF), Ecole Supérieure Polytechnique (ESP), Université Cheikh Anta Diop, BP 5085, Dakar-Fann, Senegal
| | - Ana Maria Mancho
- Instituto de Ciencias Matemáticas, Consejo Superior de Investigaciones Científicas (CSIC), C/ Nicolás Cabrera 15, Campus de Cantoblanco, 28049, Madrid, Spain.
| | | | - Elsa Mohino
- Departamento de Fisica de la Tierra y Astrofisica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Belén Rodriguez-Fonseca
- Departamento de Fisica de la Tierra y Astrofisica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Jezabel Curbelo
- Instituto de Ciencias Matemáticas, Consejo Superior de Investigaciones Científicas (CSIC), C/ Nicolás Cabrera 15, Campus de Cantoblanco, 28049, Madrid, Spain.,Departament de Matemàtiques, Universitat Politècnica de Catalunya (UPC), 08028, Barcelona, Spain
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Knowland KE, Doherty RM, Hodges KI, Ott LE. The influence of mid-latitude cyclones on European background surface ozone. ATMOSPHERIC CHEMISTRY AND PHYSICS 2017; 17:12421-12447. [PMID: 32714379 PMCID: PMC7380074 DOI: 10.5194/acp-17-12421-2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The relationship between springtime mid-latitude cyclones and background ozone (O3) is explored using a combination of observational and reanalysis data sets. First, the relationship between surface O3 observations at two rural monitoring sites on the west coast of Europe - Mace Head, Ireland and Monte Velho, Portugal - and cyclone track frequency in the surrounding regions is examined. Second, detailed case study examination of four individual mid-latitude cyclones and the influence of the associated frontal passage on surface O3 is performed. Cyclone tracks have a greater influence on the O3 measurements at the more northern coastal European station, Mace Head, located within the main North Atlantic (NA) storm track. In particular, when cyclones track north of 53° N, there is a significant relationship with high levels of surface O3 (> 75th percentile). The further away a cyclone is from the NA storm track, the more likely it will be associated with both high and low (< 25th percentile) levels of O3 at the observation site during the cyclone's life cycle. The results of the four case studies demonstrate a) the importance of the passage of a cyclone's cold front in relation to surface O3 measurements, b) the ability of mid-latitude cyclones to bring down high levels of O3 from the stratosphere and c) that accompanying surface high pressure systems and their associated transport pathways play an important role in the temporal variability of surface O3. The main source of high O3 to these two sites in springtime is from the stratosphere, either from direct injection into the cyclone or associated with aged airstreams from decaying downstream cyclones that can become entrained and descend toward the surface within new cyclones over the NA region.
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Affiliation(s)
- K. Emma Knowland
- Universities Space Research Association (USRA)/Goddard Earth Science Technology & Research (GESTAR)
- Global Modeling and Assimilation Office (GMAO), NASA Goddard Space Flight Center (GSFC), Greenbelt, Maryland, USA
| | - Ruth M. Doherty
- School of Geosciences, University of Edinburgh, Edinburgh, UK
| | | | - Lesley E. Ott
- Global Modeling and Assimilation Office (GMAO), NASA Goddard Space Flight Center (GSFC), Greenbelt, Maryland, USA
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Oxygen anomaly in near surface carbon dioxide reveals deep stratospheric intrusion. Sci Rep 2015; 5:11352. [PMID: 26081178 PMCID: PMC4469951 DOI: 10.1038/srep11352] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 05/21/2015] [Indexed: 12/24/2022] Open
Abstract
Stratosphere-troposphere exchange could be enhanced by tropopause folding, linked to variability in the subtropical jet stream. Relevant to tropospheric biogeochemistry is irreversible transport from the stratosphere, associated with deep intrusions. Here, oxygen anomalies in near surface air CO2 are used to study the irreversible transport from the stratosphere, where the triple oxygen isotopes of CO2 are distinct from those originating from the Earth’s surface. We show that the oxygen anomaly in CO2 is observable at sea level and the magnitude of the signal increases during the course of our sampling period (September 2013-February 2014), concordant with the strengthening of the subtropical jet system and the East Asia winter monsoon. The trend of the anomaly is found to be 0.1‰/month (R2 = 0.6) during the jet development period in October. Implications for utilizing the oxygen anomaly in CO2 for CO2 biogeochemical cycle study and stratospheric intrusion flux at the surface are discussed.
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Meteorological Influences on Trace Gas Transport along the North Atlantic Coast during ICARTT 2004. ATMOSPHERE 2014. [DOI: 10.3390/atmos5040973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Walker TW, Jones DBA, Parrington M, Henze DK, Murray LT, Bottenheim JW, Anlauf K, Worden JR, Bowman KW, Shim C, Singh K, Kopacz M, Tarasick DW, Davies J, von der Gathen P, Thompson AM, Carouge CC. Impacts of midlatitude precursor emissions and local photochemistry on ozone abundances in the Arctic. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd016370] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Matsui H, Kondo Y, Moteki N, Takegawa N, Sahu LK, Koike M, Zhao Y, Fuelberg HE, Sessions WR, Diskin G, Anderson BE, Blake DR, Wisthaler A, Cubison MJ, Jimenez JL. Accumulation-mode aerosol number concentrations in the Arctic during the ARCTAS aircraft campaign: Long-range transport of polluted and clean air from the Asian continent. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jd016189] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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The Coupled Effect of Mid-Tropospheric Moisture and Aerosol Abundance on Deep Convective Cloud Dynamics and Microphysics. ATMOSPHERE 2011. [DOI: 10.3390/atmos2030222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Fang Y, Fiore AM, Horowitz LW, Gnanadesikan A, Levy H, Hu Y, Russell AG. Estimating the contribution of strong daily export events to total pollutant export from the United States in summer. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010946] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Turnbull J, Rayner P, Miller J, Naegler T, Ciais P, Cozic A. On the use of14CO2as a tracer for fossil fuel CO2: Quantifying uncertainties using an atmospheric transport model. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2009jd012308] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ding A, Wang T, Xue L, Gao J, Stohl A, Lei H, Jin D, Ren Y, Wang X, Wei X, Qi Y, Liu J, Zhang X. Transport of north China air pollution by midlatitude cyclones: Case study of aircraft measurements in summer 2007. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd011023] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mattis I, Müller D, Ansmann A, Wandinger U, Preißler J, Seifert P, Tesche M. Ten years of multiwavelength Raman lidar observations of free-tropospheric aerosol layers over central Europe: Geometrical properties and annual cycle. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009636] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Rao TN, Arvelius J, Kirkwood S. Climatology of tropopause folds over a European Arctic station (Esrange). ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009638] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lang C, Tao S, Liu W, Zhang Y, Simonich S. Atmospheric transport and outflow of polycyclic aromatic hydrocarbons from China. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2008; 42:5196-5201. [PMID: 18754369 DOI: 10.1021/es800453n] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A potential receptor influence function (PRIF) model, based on air mass forward trajectory calculations, was applied to simulate the atmospheric transport and outflow of polycyclic aromatic hydrocarbons (PAHs) emitted from China. With a 10 day atmospheric transport time, most neighboring countries and regions, as well as remote regions, were influenced by PAH emissions from China. Of the total annual PAH emission of 114 Gg, 92.7% remained within the boundary of mainland China. The geographic distribution of PRIFs within China was similar to the geographic distribution of the source regions, with high values in the North China Plain, Sichuan Basin, Shanxi, and Guizhou province. The Tarim basin and Sichuan basin had unfavorable meteorological conditions for PAH outflow. Of the PAH outflow from China (8092 tons or 7.1% of the total annual PAH emission), approximately 69.9% (5655 tons) reached no further than the offshore environment of mainland China and the South China Sea. Approximate 227, 71, 746, and 131 tons PAHs reached North Korea, South Korea, Russia-Mongolia region, and Japan, respectively, 2-4 days after the emission. Only 1.4 tons PAHs reached North America after more than 9 days. Interannual variation in the eastward PAH outflow was positively correlated to cold episodes of El Niño/Southern Oscillation. However, trans-Pacific atmospheric transport of PAHs from China was correlated to Pacific North America index (PNA) which is associated with the strength and position of westerly winds.
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Affiliation(s)
- Chang Lang
- Laboratory for Earth Surface Processes, College of Environmental Sciences, Peking University, Beijing 100871
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Yu H, Remer LA, Chin M, Bian H, Kleidman RG, Diehl T. A satellite-based assessment of transpacific transport of pollution aerosol. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009349] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Holzer M, Hall TM. Tropospheric transport climate partitioned by surface origin and transit time. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009115] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sawa Y, Tanimoto H, Yonemura S, Matsueda H, Wada A, Taguchi S, Hayasaka T, Tsuruta H, Tohjima Y, Mukai H, Kikuchi N, Katagiri S, Tsuboi K. Widespread pollution events of carbon monoxide observed over the western North Pacific during the East Asian Regional Experiment (EAREX) 2005 campaign. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008055] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Wuebbles DJ, Lei H, Lin J. Intercontinental transport of aerosols and photochemical oxidants from Asia and its consequences. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2007; 150:65-84. [PMID: 17714840 DOI: 10.1016/j.envpol.2007.06.066] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2007] [Accepted: 06/22/2007] [Indexed: 05/16/2023]
Abstract
The intercontinental transport of aerosols and photochemical oxidants from Asia is a crucial issue for air quality concerns in countries downwind of the significant emissions and concentrations of pollutants occurring in this important region of the world. Since the lifetimes of some important pollutants are long enough to be transported over long distance in the troposphere, regional control strategies for air pollution in downwind countries might be ineffective without considering the effects of long-range transport of pollutants from Asia. Field campaigns provide strong evidence for the intercontinental transport of Asian pollutants. They, together with ground-based observations and model simulations, show that the air quality over parts of North America is being affected by the pollutants transported from Asia. This paper examines the current understanding of the intercontinental transport of gases and aerosols from Asia and resulting effects on air quality, and on the regional and global climate system.
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Affiliation(s)
- Donald J Wuebbles
- Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, 105 S. Gregory Street, Urbana, IL 61802, USA.
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Berthet G, Esler JG, Haynes PH. A Lagrangian perspective of the tropopause and the ventilation of the lowermost stratosphere. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008295] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Thompson AM, Stone JB, Witte JC, Miller SK, Pierce RB, Chatfield RB, Oltmans SJ, Cooper OR, Loucks AL, Taubman BF, Johnson BJ, Joseph E, Kucsera TL, Merrill JT, Morris GA, Hersey S, Forbes G, Newchurch MJ, Schmidlin FJ, Tarasick DW, Thouret V, Cammas JP. Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 1. Summertime upper troposphere/lower stratosphere ozone over northeastern North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007441] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Thompson AM, Stone JB, Witte JC, Miller SK, Oltmans SJ, Kucsera TL, Ross KL, Pickering KE, Merrill JT, Forbes G, Tarasick DW, Joseph E, Schmidlin FJ, McMillan WW, Warner J, Hintsa EJ, Johnson JE. Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 2. Tropospheric ozone budgets and variability over northeastern North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007670] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liang Q, Jaeglé L, Hudman RC, Turquety S, Jacob DJ, Avery MA, Browell EV, Sachse GW, Blake DR, Brune W, Ren X, Cohen RC, Dibb JE, Fried A, Fuelberg H, Porter M, Heikes BG, Huey G, Singh HB, Wennberg PO. Summertime influence of Asian pollution in the free troposphere over North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007919] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Real E, Law KS, Weinzierl B, Fiebig M, Petzold A, Wild O, Methven J, Arnold S, Stohl A, Huntrieser H, Roiger A, Schlager H, Stewart D, Avery M, Sachse G, Browell E, Ferrare R, Blake D. Processes influencing ozone levels in Alaskan forest fire plumes during long-range transport over the North Atlantic. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007576] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- E. Real
- Service d'Aéronomie du CNRS, Institut Pierre-Simon Laplace; Université Pierre et Marie Curie; Paris France
| | - K. S. Law
- Service d'Aéronomie du CNRS, Institut Pierre-Simon Laplace; Université Pierre et Marie Curie; Paris France
| | - B. Weinzierl
- Institut für Physik der Atmosphäre; Deutsches Zentrum für Luft- und Raumfahrt; Wessling Germany
| | - M. Fiebig
- Institut für Physik der Atmosphäre; Deutsches Zentrum für Luft- und Raumfahrt; Wessling Germany
| | - A. Petzold
- Institut für Physik der Atmosphäre; Deutsches Zentrum für Luft- und Raumfahrt; Wessling Germany
| | - O. Wild
- Centre for Atmospheric Science, Department of Chemistry; University of Cambridge; Cambridge UK
| | - J. Methven
- Department of Meteorology; University of Reading; Reading UK
| | - S. Arnold
- School of Earth and Environment; University of Leeds; Leeds UK
| | - A. Stohl
- Norwegian Institute for Air Research; Kjeller Norway
| | - H. Huntrieser
- Institut für Physik der Atmosphäre; Deutsches Zentrum für Luft- und Raumfahrt; Wessling Germany
| | - A. Roiger
- Institut für Physik der Atmosphäre; Deutsches Zentrum für Luft- und Raumfahrt; Wessling Germany
| | - H. Schlager
- Institut für Physik der Atmosphäre; Deutsches Zentrum für Luft- und Raumfahrt; Wessling Germany
| | - D. Stewart
- School of Environmental Science; University of East Anglia; Norwich UK
| | - M. Avery
- Atmospheric Science Division; NASA Langley Research Center; Hampton Virginia USA
| | - G. Sachse
- Atmospheric Science Division; NASA Langley Research Center; Hampton Virginia USA
| | - E. Browell
- Atmospheric Science Division; NASA Langley Research Center; Hampton Virginia USA
| | - R. Ferrare
- Atmospheric Science Division; NASA Langley Research Center; Hampton Virginia USA
| | - D. Blake
- Department of Chemistry; University of California; Irvine California USA
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Fuelberg HE, Porter MJ, Kiley CM, Halland JJ, Morse D. Meteorological conditions and anomalies during the Intercontinental Chemical Transport Experiment–North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007734] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Avey L, Garrett TJ, Stohl A. Evaluation of the aerosol indirect effect using satellite, tracer transport model, and aircraft data from the International Consortium for Atmospheric Research on Transport and Transformation. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007581] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- L. Avey
- Meteorology Department; University of Utah; Salt Lake City Utah USA
| | - T. J. Garrett
- Meteorology Department; University of Utah; Salt Lake City Utah USA
| | - A. Stohl
- Norwegian Institute for Air Research; Kjeller Norway
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Hadley OL, Ramanathan V, Carmichael GR, Tang Y, Corrigan CE, Roberts GC, Mauger GS. Trans-Pacific transport of black carbon and fine aerosols (D< 2.5μm) into North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007632] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Auvray M, Bey I, Llull E, Schultz MG, Rast S. A model investigation of tropospheric ozone chemical tendencies in long-range transported pollution plumes. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007137] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Kiley CM, Fuelberg HE. An examination of summertime cyclone transport processes during Intercontinental Chemical Transport Experiment (INTEX-A). ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006jd007115] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Shadbolt RP, Waller EA, Messina JP, Winkler JA. Source regions of lower-tropospheric airflow trajectories for the lower peninsula of Michigan: A 40-year air mass climatology. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006657] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Wang PH, Cunnold DM, Trepte CR, Wang HJ, Jing P, Fishman J, Brackett VG, Zawodney JM, Bodeker GE. Ozone variability in the midlatitude upper troposphere and lower stratosphere diagnosed from a monthly SAGE II climatology relative to the tropopause. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006108] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liu J, Drummond JR, Jones DBA, Cao Z, Bremer H, Kar J, Zou J, Nichitiu F, Gille JC. Large horizontal gradients in atmospheric CO at the synoptic scale as seen by spaceborne Measurements of Pollution in the Troposphere. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006076] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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33
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Wang KY. A 9-year climatology of airstreams in East Asia and implications for the transport of pollutants and downstream impacts. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Auvray M. Long-range transport to Europe: Seasonal variations and implications for the European ozone budget. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005503] [Citation(s) in RCA: 140] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Huntrieser H. Intercontinental air pollution transport from North America to Europe: Experimental evidence from airborne measurements and surface observations. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005045] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Li Q. North American pollution outflow and the trapping of convectively lifted pollution by upper-level anticyclone. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005039] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Cooper OR. A springtime comparison of tropospheric ozone and transport pathways on the east and west coasts of the United States. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005183] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Martinsson BG. Characteristics and origin of lowermost stratospheric aerosol at northern midlatitudes under volcanically quiescent conditions based on CARIBIC observations. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005644] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Liang Q. Meteorological indices for Asian outflow and transpacific transport on daily to interannual timescales. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005jd005788] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Park RJ. Export efficiency of black carbon aerosol in continental outflow: Global implications. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005432] [Citation(s) in RCA: 152] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Holzer M, Hall TM, Stull RB. Seasonality and weather-driven variability of transpacific transport. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005jd006261] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hudman RC, Jacob DJ, Cooper OR, Evans MJ, Heald CL, Park RJ, Fehsenfeld F, Flocke F, Holloway J, Hübler G, Kita K, Koike M, Kondo Y, Neuman A, Nowak J, Oltmans S, Parrish D, Roberts JM, Ryerson T. Ozone production in transpacific Asian pollution plumes and implications for ozone air quality in California. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004jd004974] [Citation(s) in RCA: 178] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- R. C. Hudman
- Division of Engineering and Applied Science; Harvard University; Cambridge Massachusetts USA
| | - D. J. Jacob
- Division of Engineering and Applied Science; Harvard University; Cambridge Massachusetts USA
| | - O. R. Cooper
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - M. J. Evans
- Division of Engineering and Applied Science; Harvard University; Cambridge Massachusetts USA
| | - C. L. Heald
- Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
| | - R. J. Park
- Division of Engineering and Applied Science; Harvard University; Cambridge Massachusetts USA
| | - F. Fehsenfeld
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - F. Flocke
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - J. Holloway
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - G. Hübler
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - K. Kita
- Department of Environmental Science; Ibaraki University; Mito Japan
| | - M. Koike
- Department of Earth and Planetary Sciences; University of Tokyo; Tokyo Japan
| | - Y. Kondo
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - A. Neuman
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - J. Nowak
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - S. Oltmans
- Climate Monitoring and Diagnostics Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - D. Parrish
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - J. M. Roberts
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - T. Ryerson
- Aeronomy Laboratory, National Oceanic and Atmospheric Administration; Boulder Colorado USA
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Oshima N, Koike M, Nakamura H, Kondo Y, Takegawa N, Miyazaki Y, Blake DR, Shirai T, Kita K, Kawakami S, Ogawa T. Asian chemical outflow to the Pacific in late spring observed during the PEACE-B aircraft mission. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004jd004976] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- N. Oshima
- Department of Earth and Planetary Science, Graduate School of Science; University of Tokyo; Tokyo Japan
| | - M. Koike
- Department of Earth and Planetary Science, Graduate School of Science; University of Tokyo; Tokyo Japan
| | - H. Nakamura
- Department of Earth and Planetary Science, Graduate School of Science; University of Tokyo; Tokyo Japan
| | - Y. Kondo
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - N. Takegawa
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - Y. Miyazaki
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - D. R. Blake
- Department of Chemistry; University of California; Irvine California USA
| | - T. Shirai
- Earth Observation Research and Application Center; Japan Aerospace Exploration Agency; Tokyo Japan
| | - K. Kita
- Department of Environmental Sciences, Faculty of Science; Ibaraki University; Ibaraki Japan
| | - S. Kawakami
- Earth Observation Research and Application Center; Japan Aerospace Exploration Agency; Tokyo Japan
| | - T. Ogawa
- Earth Observation Research and Application Center; Japan Aerospace Exploration Agency; Tokyo Japan
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Liang Q, Jaeglé L, Jaffe DA, Weiss-Penzias P, Heckman A, Snow JA. Long-range transport of Asian pollution to the northeast Pacific: Seasonal variations and transport pathways of carbon monoxide. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004402] [Citation(s) in RCA: 229] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qing Liang
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
| | - Lyatt Jaeglé
- Department of Atmospheric Sciences; University of Washington; Seattle Washington USA
| | - Daniel A. Jaffe
- Interdisciplinary Arts and Sciences; University of Washington; Bothell Washington USA
| | - Peter Weiss-Penzias
- Interdisciplinary Arts and Sciences; University of Washington; Bothell Washington USA
| | - Anna Heckman
- Interdisciplinary Arts and Sciences; University of Washington; Bothell Washington USA
| | - Julie A. Snow
- Science Department; United States Coast Guard Academy; New London Connecticut USA
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45
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Cooper O, Forster C, Parrish D, Dunlea E, Hübler G, Fehsenfeld F, Holloway J, Oltmans S, Johnson B, Wimmers A, Horowitz L. On the life cycle of a stratospheric intrusion and its dispersion into polluted warm conveyor belts. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004006] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- O. Cooper
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - C. Forster
- Department of Ecology; Technical University of Munich; Freising-Weihenstephan Germany
| | - D. Parrish
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - E. Dunlea
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - G. Hübler
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | | | - J. Holloway
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - S. Oltmans
- NOAA Climate Monitoring and Diagnostics Laboratory; Boulder Colorado USA
| | - B. Johnson
- NOAA Climate Monitoring and Diagnostics Laboratory; Boulder Colorado USA
| | - A. Wimmers
- Department of Environmental Sciences; University of Virginia; Charlottesville Virginia USA
| | - L. Horowitz
- NOAA Geophysical Fluid Dynamics Laboratory; Princeton New Jersey USA
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46
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Cooper OR, Forster C, Parrish D, Trainer M, Dunlea E, Ryerson T, Hübler G, Fehsenfeld F, Nicks D, Holloway J, de Gouw J, Warneke C, Roberts JM, Flocke F, Moody J. A case study of transpacific warm conveyor belt transport: Influence of merging airstreams on trace gas import to North America. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd003624] [Citation(s) in RCA: 145] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- O. R. Cooper
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - C. Forster
- Department of Ecology; Technical University of Munich; Freising-Weihenstephan Germany
| | - D. Parrish
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - M. Trainer
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - E. Dunlea
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - T. Ryerson
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - G. Hübler
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | | | - D. Nicks
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - J. Holloway
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - J. de Gouw
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - C. Warneke
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - J. M. Roberts
- Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
- NOAA Aeronomy Laboratory; Boulder Colorado USA
| | - F. Flocke
- National Center for Atmospheric Research; Boulder Colorado USA
| | - J. Moody
- Department of Environmental Sciences; University of Virginia; Charlottesville Virginia USA
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Duncan BN. A modeling study of the export pathways of pollution from Europe: Seasonal and interannual variations (1987–1997). ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004079] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wimmers AJ. Tropopause folding at satellite-observed spatial gradients: 2. Development of an empirical model. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mari C. Export of Asian pollution during two cold front episodes of the TRACE-P experiment. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004307] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Forster C. Lagrangian transport model forecasts and a transport climatology for the Intercontinental Transport and Chemical Transformation 2002 (ITCT 2K2) measurement campaign. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd003589] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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