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Simulation of Particle Size Distribution with a Global Aerosol Mod...

By: F. Yu; G. Luo

Description: Atmospheric Sciences Research Center, State University of New York, 251 Fuller Road, Albany, New York 12203, USA. An advanced particle microphysics model with a number of computationally efficient schemes has been incorporated into a global chemistry transport model (GEOS-Chem) to simulate particle number size distributions and cloud condensation nuclei (CCN) concentrations in the atmosphere. Size-resolved microphysics for secondary particles (i.e., thos...

Hamill, P., Turco, R. P., Kiang, C. S., Toon, O. B., and Whitten, R. C.: An analysis of various nucleation mechanisms for sulfate particles in the stratosphere, J. Aerosol Sci., 13, 561–585, 1982.; Henzing, J. S., Olivié, D. J. L., and van Velthoven, P. F. J.: A parameterization of size resolved below cloud scavenging of aerosols by rain, Atmos. Chem. Phys., 6, 3363–3375, 2006.; Hirsikko, A., Bergman, T., Laakso, L., Dal Maso, M., Riipinen, I., Hõrrak, U., and Kulmala, M...

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An Improved Hirs Upper Tropospheric Water Vapor Dataset and Its Co...

By: C. J. Schreck III; V. O. John; L. Shi

Description: National Climatic Data Center, National Oceanic and Atmospheric Administration, Asheville, North Carolina, USA. A new version of the upper tropospheric water vapor dataset is developed using intersatellite calibrated all-sky High-Resolution Infrared Radiation Sounder (HIRS) data. In this dataset, the majority of pixels that do not affect the water vapor processing in the upper troposphere are retained. Compared to the previous version that was based on c...

Bai, X., Wang, J., Sellinger, C., Clites, A., and Assel, R.: Interannual variability of Great Lakes ice cover and its relationship to NAO and ENSO, J. Geophys. Res., 117, C03002, doi:10.1029/2010jc006932, 2012.; Barnston, A. G. and Livezey, R. E.: Classification, Seasonality and Persistence of Low-Frequency Atmospheric Circulation Patterns, Mon. Weather Rev., 115, 1083–1126,

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Aerosol Microphysics Simulations of the Mt. Pinatubo Eruption with...

By: G. W. Mann; K. M. Emmerson; C. E. Johnson; M. P. Chipperfield; F. O'Connor; S. S. Dhomse; P. Braesicke; O. Morgenstern; R. Hommel; N. Bellouin; T. Deshler; M. Dalvi; N. L. Abraham; L. W. Thomason; J. M. Zawodny; P. Telford; J. A. Pyle; K. S. Carslaw

Description: School of Earth and Environment, University of Leeds LS2 9JT, UK. We have enhanced the capability of a microphysical aerosol-chemistry module to simulate the atmospheric aerosol and precursor gases for both tropospheric and stratospheric conditions. Using the Mount Pinatubo eruption (June 1991) as a test case, we evaluate simulated aerosol properties in a composition-climate model against a range of satellite and in-situ observations. Simulations a...

Andres, R. and Kasgnoc, A.: A time-averaged inventory of subaerial volcanic sulfur emissions, J. Geophys. Res.-Atmos., 103, 25251–25261, 1998.; Andrews, D. G., Holton, J. R., and Leovy, C. B.: Middle atmosphere dynamics, Academic Press, New York, NY, USA, 1987.; Aquila, V., Oman, L. D., Stolarski, R. S., Colarco, P. R., and Newman, P. A.: Dispersion of the volcanic sulfate cloud from a Mount Pinatubo-like eruption, J. Geophys. Res.-Atmos., 117, D06216,

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Mid-winter Lower Stratosphere Temperatures in the Antarctic Vortex...

By: M. Yela; M. Gil; H. Ochoa; M. C. Parrondo; P. Von Der Gathen

Description: Instituto Nacional de Técnica Aeroespacial, Torrejón de Ardoz, Spain. Radiosonde temperature profiles from Belgrano (78° S) and other Antarctic stations have been compared with European Centre for Medium-Range Weather Forecasting (ECMWF) and National Centers for Environmental Prediction (NCEP) operational analyses during the winter of 2003. Results show good agreement between radiosondes and NCEP and a bias in the ECMWF model which is height and tempera...

Chipperfield, M. and Feng W.: Comment on: Stratospheric Ozone Depletion at northern mid-latitudes in the 21st century: The importance of future concentrations of greenhouse gases nitrous oxide and methane, Geophys. Res. Lett., 30, 7, 1389, doi:10.1029/2002GL016353, 2003.; Dethof, A.: Monitoring of near-real-time SCIAMACHY, MIPAS and GOMOS data at ECMWF, ENVISAT Validation Workshop, ESA-SP531, 2003.; ECMWF: http://www.ecmwf.int/product/data/operationaSystem/evolution, 200...

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Reactive Uptake of Ammonia to Secondary Organic Aerosols: Kinetics...

By: J. Liggio; S.-m. Li; R. Staebler; Y. Liu

Description: Atmospheric Science and Technology Directorate, Science and Technology Branch, Environment Canada, Toronto, M3H 5T4, Canada. As a class of brown carbon, organonitrogen compounds originating from the heterogeneous uptake of NH3 by secondary organic aerosol (SOA) have received significant attention recently. In the current work, particulate organonitrogen formation during the ozonolysis of α-pinene and the OH oxidation of m-xylene in...

Hawkins, L. N., Russell, L. M., Covert, D. S., Quinn, P. K., and Bates, T. S.: Carboxylic acids, sulfates, and organosulfates in processed continental organic aerosol over the southeast Pacific Ocean during VOCALS-REx 2008, J. Geophys. Res.-Atmos., 115, D13201, doi:10.1029/2009jd013276, 2010.; Heald, C. L., Collett Jr., J. L., Lee, T., Benedict, K. B., Schwandner, F. M., Li, Y., Clarisse, L., Hurtmans, D. R., Van Damme, ...

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Simulation of Ozone Production in a Complex Circulation Region Usi...

By: S. Cautenet; G. Foret; M. Taghavi

Description: Laboratoire de Météorologie Physique, OPGC-CNRS and Université Blaise Pascal, Aubière, France. During ESCOMPTE precampaign (15 June to 10 July 2000), three days of intensive pollution (IOP0) have been observed and simulated. The comprehensive RAMS model, version 4.3, coupled online with a chemical module including 29 species, has been used to follow the chemistry of the zone polluted over southern France. This online method can be used becaus...

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Source Apportionment of Pm10 in a North-western Europe Regional Ur...

By: C. Piot; O. Favez; E. Leoz-garziandia; A. Waked; L. Y. Alleman; E. Verlinden; J.-e. Petit; B. Golly; T. Delaunay; J.-l. Besombes; J.-l. Jaffrezo

Description: Université Grenoble 1-CNRS, LGGE UMR5183, 38041 Grenoble, France. In this work, the source of ambient particulate matter (PM10) collected over a one year period at an urban background site in Lens (France) were determined and investigated using a~Positive Matrix Factorization receptor model (US EPA PMF v3.0). In addition, a Potential Source Contribution Function (PSCF) was performed by means of the Hysplit v4.9 model to assess prevailing geo...

Alleman, L. Y., Lamaison, L., Perdrix, E., Robache, A., and Galloo, J.-C.: PM10 metal concentrations and source identification using positive matrix factorization and wind sectoring in a French industrial zone, Atmos. Res., 96, 612–625, doi:10.1016/j.atmosres.2010.02.008, 2010.; Almeida, S. M., Pio, C. A., Freitas, M. C., Reis, M. A., and Trancoso, M. A.: Source apportionment of fine and coarse parti...

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Studies of Propane Flame Soot Acting as Heterogeneous Ice Nuclei i...

By: I. Crawford; M. Flynn; P. J. Connolly; H. Saathoff; O. Möhler; D. Liu; M. Schnaiter; G. McMeeking; K. N. Bower; H. Coe; M. W. Gallagher

Description: Centre for Atmospheric Science, School of Earth, Atmospheric and Environmental Sciences, University of Manchester, M13 9PL, Manchester, UK. The ice nucleation efficiency of propane flame soot particles with and without a sulphuric acid coating was investigated using the aerosol and cloud chamber facility AIDA (Aerosol Interaction and Dynamics in the Atmosphere). The test soot for cloud formation simulations was produced using a propane flame Combustion A...

Baumgardner, D., Subramanian, R., Twohy, C., Stith, J., and Kok, G.: Scavenging of black carbon by ice crystals over the northern Pacific, Geophys. Res. Lett., 35, D04204, doi:10.1029/2005JD006627, 2008.; Benz, S., Megahed, K., Möhler, O., Saathoff, H., Wagner, R., and Schurath, U.: T-dependent rate measurements of homogeneous ice nucleation in cloud droplets using a large atmospheric simulation chamber, J. Photochem. Photobiol. A: Chemistry, 176, 208–217, 2005.; Bond, T...

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Enhancement of N2O During the October–november 2003 Solar Proton E...

By: B. Funke; T. Von Clarmann; K. Semeniuk; M. López-puertas; G. P. Stiller; M. García-comas; N. Glatthor; J. C. McConnell

Description: Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain. In this paper we present evidence of enhanced N2O concentrations in the upper stratosphere/lower mesosphere polar regions after the solar proton events that occurred during October–November 2003. The observations were performed by the MIPAS instrument on the Envisat satellite. Simulations performed using the Canadian Middle Atmospheric Model (CMAM) show that such enhancements are mo...

Brasseur, G. and Solomon, S.: Aeronomy of the middle Atmosphere, 3rd revised and enlarged ed., Springer, Dordrecht, 644, 327–358, 2005.; de Grandpr\accent 19 e, J., Beagley, S. R., Fomichev, V. I., Griffioen, E., McConnell, J. C., Medvedev, A. S., and T. G. Shepherd: Ozone climatology using interactive chemistry: Results from the Canadian Middle Atmosphere Model, J. Geophys. Res., 105, 26 475–26 491, 2000.; European Space Agency, Envisat, MIPAS An instrument for atmosphe...

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Intercontinental Transport of Nitrogen Oxide Pollution Plumes : Vo...

By: S. Beirle; B. Jähne; M. Wenig; U. Platt; G. Held; N. Spichtinger; T. Wagner; A. Stohl

Description: Institut für Umweltphysik (IUP), Heidelberg University, Germany. We describe the first satellite observation of intercontinental transport of nitrogen oxides emitted by power plants, verified by simulations with a particle tracer model. The analysis of such episodes shows that anthropogenic NOx plumes may influence the atmospheric chemistry thousands of kilometers away from its origin, as well as the ocean they traverse due to ...

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The Evolution of the Global Aerosol System in a Transient Climate ...

By: S. Kloster; J. Feichter; E. Roeckner; P. Stier; M. Esch

Description: The Atmosphere in the Earth System, Max Planck Institute for Meteorology, Hamburg, Germany. The evolution of the global aerosol system from 1860 to 2100 is investigated through a transient atmosphere-ocean General Circulation Model climate simulation with interactively coupled atmospheric aerosol and oceanic biogeochemistry modules. The microphysical aerosol module HAM incorporates the major global aerosol cycles with prognostic treatment of their compo...

Adams, P J., Seinfeld, J H., and Koch, D M.: Global concentrations of tropospheric sulfate, nitrate, and ammonium aerosol simulated in a general circulation model, J. Geophys. Res., 104, 13 791–13 824, 1999.; Albrecht, B A.: Aerosols, cloud microphysics, and fractional cloudiness, Science, 245, 1227–1230, 1989.; \AAngström, A.: Atmospheric turbidity, global illumination and planetary albedo of the earth, Tellus, 14, 435–450, 1962.; Andreae, M O.: Global biomass burning: ...

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Mesospheric N2O Enhancements as Observed by Mipas on Envisat Durin...

By: M. López-puertas; M. García-comas; G. P. Stiller; N. Glatthor; T. Von Clarmann; B. Funke

Description: Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain. N2O abundances ranging from 0.5 to 6 ppbv were observed in the polar upper stratosphere/lower mesosphere by the MIPAS instrument on the Envisat satellite during the Arctic and Antarctic winters in the period July 2002 to March 2004. A detailed study of the observed N2O–CH4 correlations shows that such enhancements are of chemical rather than dynamical origin. ...

Callis, L B., Natarajan, M., Lambeth, J D., and Baker, D N.: Solar atmospheric coupling by electron (SOLACE 2. Calculated stratospheric effects of precipitationg electron, 1979–1988, J. Geophys. Res., 103, 28 421–28 438, 1998.; de Sousa, A R., Touzeau, M., and Petitdidier, M.: Quenching reactions of metastable N2(A$^3 §igma, \nu=0,1,2$) molecule with O2, Chem. Phys. Lett., 121, 1985.; Echle, G., von Clarmann, T., Dudhia, A., Flaud, J.-M., Funke, B.,...

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Intercomparison of O3 Profiles Observed by Sciamachy, Ground Based...

By: K. Künzi; C. V. Savigny; T. Warneke; J. Burrows; J. Notholt; M. Palm; V. Velazco; O. Schrems

Description: Institute of Environmental Physics, University of Bremen, PO Box 330440, D-28334 Bremen, Germany. Ozone profiles retrieved from limb scattering measurements of the SCIAMACHY instrument based on the satellite ENVISAT are compared to ground based low altitude resolution remote sensors. All profiles are retrieved using optimal estimation. Following the work of 5 Rodgers and Connor (2003) the retrievals of the ground based instruments are simulated using the...

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Stratospheric Ozone in the Post-cfc Era : Volume 9, Issue 6 (24/03...

By: P. A. Newman; R. S. Stolarski; F. Li

Description: GEST, University of Maryland, Baltimore County, Baltimore, MD, USA. Vertical and latitudinal changes in the stratospheric ozone in the post-chlorofluorocarbon (CFC) era are investigated using simulations of the recent past and the 21st century with a coupled chemistry-climate model. Model results reveal that, in the 2060s when the stratospheric halogen loading is projected to return to its 1980 values, the extratropical column ozone is significantly hig...

Austin, J. and Wilson, R. J.: Ensemble simulations of the decline and recovery of stratospheric ozone, J. Geophys. Res., 111, D16314, doi:10.1029/2005JD006907, 2006.; Barnett, J. J., Houghton, J. T., and Pyle, J. A.: The temperature dependence of the ozone concentration near the stratopause, Quart. J. R. Meteorol. Soc., 101, 245–257, 1975.; Butchart, N. and Scaife, A. A.: Removal of chlorofluorocarbons by increased mass exchange between the stratosphere and troposphere i...

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Quantifying Transport Into the Lowermost Stratosphere Using Simult...

By: A. Engel; H. Bönisch; P. Hoor; Th. Birner; J. Curtius

Description: Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany. The seasonality of transport and mixing of air into the lowermost stratosphere (LMS) is studied using distributions of mean age of air and a mass balance approach, based on in-situ observations of SF6 and CO2 during the SPURT (Spurenstofftransport in der Tropopausenregion, trace gas transport in the tropopause region) aircr...

Andrews, D. G., Holton, J. R., and Leovy, C. B.: Middle Atmosphere Dynamics, Academic Press, 1987.; Andrews, A. E., Boering, K. A., Daube, B. C., Wofsy, S. C., Hintsa, E. J., Weinstock, E. M., and Bui, T. P.: Empirical age spectra for the lower tropical stratosphere from in situ observations of CO2: Implications for stratospheric transport, J. Geophys. Res., 104, 26581–26595, 1999.; Andrews, A. E., Boering, K. A., Wofsy, S. C., Daube, B. C., Jones, D. B., Alex...

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Airborne In-situ Measurements of Vertical, Seasonal and Latitudina...

By: P. Hoor; H. Wernli; H. Fischer; M.G. Lawrence; C. Gurk; J. Lelieveld

Description: Max Planck Institute for Chemistry, POB 3060, 55020 Mainz, Germany. Airborne in-situ observations of carbon dioxide (CO2) were made during 7 intensive measurement campaigns between November 2001 and April 2003 as part of the SPURT project. Vertical profiles and latitudinal gradients in the upper troposphere/lowermost stratosphere were measured along the western shore of Europe from the subtropics to high northern latitudes during different se...

Anderson, B. E., Gregora, G. L., Collins Jr., J. E., Sachse, G. W., Conway, T. J., and Whitin, G. P.: Airborne observations of spatial and temporal variability of tropospheric carbon dioxide, J. Geophys. Res., 101, 1985–1997, 1996.; Aoki, S., Nakazawa, T., Machida, T., Sugawara, S., Morimoto, S., Hashida, G., Yamanouchi, T., Kawamura, K., and Honda, H.: Carbon dioxide variations in the stratosphere over Japan, Scandinavia and Antarctica, Tellus 55B, 178–186, 2003.; Barkl...

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Technical Note: Performance of Chemical Ionization Reaction Time-o...

By: R. S. Blake; R. Koppmann; A. M. Ellis; P. S. Monks; K. P. Wyche; E. C. Apel; T. Brauers

Description: Department of Chemistry, University of Leicester, Leicester, UK. The performance of a new chemical ionization reaction time-of-flight mass spectrometer (CIR-TOF-MS) utilising the environment chamber SAPHIR (Simulation of Atmospheric Photochemistry In a large Reaction Chamber- Forschungzentrum Jülich, Germany) is described. The work took place as part of the ACCENT (Atmospheric Composition and Change the European NeTwork for excellence) supported oxygena...

Apel, E. C., Calvert, J. G., Gilpin, T. M., Fehsenfeld, F., and Lonneman, W. A.: Nonmethane Hydrocarbon Intercomparison Experiment (NOMHICE): Task 4, ambient air, J. Geophys. Res.-Atmos., 108(D12), 4359, doi:10.1029/2002JD002936, 2003.; Blake, R. S., Whyte, C., Hughes, C. O., Ellis, A. M., and Monks, P. S.: Demonstration of proton-transfer reaction time-of-flight mass spectrometry for real-time analysis of trace volatile organic compounds, Anal. Chem., 76(13), 3841–3845,...

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Solar Geoengineering Using Solid Aerosol in the Stratosphere : Vol...

By: D. W. Keith; D. K. Weisenstein

Description: School of Engineering and Applied Science, Harvard University, Cambridge, MA, USA. Solid aerosol particles have long been proposed as an alternative to sulfate aerosols for solar geoengineering. Any solid aerosol introduced into the stratosphere would be subject to coagulation with itself, producing fractal aggregates, and with the natural sulfate aerosol, producing liquid-coated solids. Solid aerosols that are coated with sulfate and/or have forme...

Blackstock, J. J., Battisti, D. S., Caldeira, K., Eardley, D. M., Katz, J. I., Keith, D. W., Patrinos, A. A. N., Schrag, D. P., Socolow, R. H., and Koonin, S. E.: Climate Engineering Responses to Climate Emergencies, Novim, available at: http://arxiv.org/pdf/0907.5140 (last access: 16 April 2015), 2009.; Brock, C. A., Hamill, P., Wilson, J. C., Jonsson, H. H., Chang, K. R.: Particle formation in the upper tropical troposphere: a...

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Aircraft Measurements of Nitrogen Oxides, Ozone, and Carbon Monoxi...

By: M. De Reus; H. Schlager; H. Ziereis; M. Traub; J. Heland; G.-j. Roelofs; A. Roiger; P. Stock; J. Lelieveld

Description: Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Germany. We present mean altitude profiles of NOx, NOy, O3, and CO as measured by the DLR Falcon aircraft during the MINOS 2001 campaign over the Mediterranean in August 2001 and compare the data with results from other aircraft campaigns, namely the SIL 1996 (North Atlantic flight corridor), the POLINAT-2 (North Atlantic flight corridor), and the ...

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A Simple Modeling Approach to Study the Regional Impact of a Medit...

By: C. Sarrat; D. Serça; J. Cortinovis; R. Rosset; F. Solmon

Description: Laboratoire d’Aérologie, 14 Avenue Edouard Belin, 31400 Toulouse, France. Research over the past year has outlined the importance of biogenic isoprene emission in tropospheric chemistry, and notably in the context of regional ozone photo-oxidant pollution. The first part of this article deals with the development of a simple isoprene emission scheme based upon the classical Guenther's algorithm coupled with a soil-vegetation-atmosphere transfer model. T...

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