LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Schladitz, Alexander; Müller, Thomas; Nordmann, Stephan; Tesche, Matthias; Groß, Silke; Freudenthaler, Volker; Gasteiger, Josef; Wiedensohler, Alfred (2011)
Publisher: Tellus B
Journal: Tellus B
Languages: English
Types: Article
Subjects:
An observation-based numerical study of humidity-dependent aerosol optical properties of mixed marine and Saharan mineral dust aerosol is presented. An aerosol model was developed based on measured optical and microphysical properties to describe the marine and Saharan dust aerosol at Cape Verde. A wavelength-dependent optical equivalent imaginary part of the refractive index and a scattering non-sphericity factor for Saharan dust were derived. Simulations of humidity effects on optical properties by the aerosol model were validated with relative measurements of the extinction coefficient at ambient conditions. Parametrizations were derived to describe the humidity dependence of the extinction, scattering, and absorption coefficients as well as the asymmetry parameter and single scattering albedo. For wavelengths (300–950 nm) and dry dust volume fractions (0–1), aerosol optical properties as a function of relative humidity (RH = 0–90%) can be calculated from tabulated parameters. For instance, at a wavelength of 550 nm, a volume fraction of 0.5 of dust on the total particle volume (dry conditions) and a RH of 90%, the enhancements for the scattering, extinction and absorption coefficients are 2.55, 2.46 and 1.04, respectively, while the enhancements for the asymmetry parameter and single scattering albedo are 1.11 and 1.04.DOI: 10.1111/j.1600-0889.2011.00568.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Anderson, T. L., Covert, D. S., Marshall, S. F., Laucks, M. L., Charlson, R. J. and co-authors. 1996. Performance characteristics of a highsensitivity, three-wavelength, total scatter/backscatter nephelometer. J. Atmos. Oceanic Technol. 13, 967-986.
    • Anderson, T. L., Masonis, S. J., Covert, D. S., Ahlquist, N. C., Howell, S. G. and co-authors. 2003. Variability of aerosol optical properties derived from in situ aircraft measurements during ACE-Asia. J. Geophys. Res. 108, 8647.
    • Anderson, T. L. and Ogren, J. A. 1998. Determining Aerosol radiative properties using the TSI 3563 integrating nephelometer. Aerosol Sci. Technol. 29, 57-69.
    • Andreae, M. O. 1995. Climatic effects of changing atmospheric aerosol levels. In: Future Climates of the World: A Modelling Perspective (ed. A. Henderson-Sellers). Elsevier, Amsterdam, 347-398.
    • Andreae, M. O. and Gelencse´r, A. 2006. Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols. Atmos. Chem. Phys. 6, 3131-3148.
    • Ansmann, A., Petzold, A., Kandler, K., Tegen, I., Wendisch, M. and coauthors. 2011. Saharan Mineral Dust Experiments SAMUM-1 and SAMUM-2: what have we learned? Tellus 63B, this issue.
    • Bergstrom, R. W., Russell, P. B. and Hignett, P. 2002. Wavelength dependence of the absorption of black carbon particles: predictions and results from the TARFOX experiment and implications for the aerosol single scattering albedo. J. Atmos. Sci. 59, 567-577.
    • Bi, L., Yang, P., Kattawar, G. W. and Kahn, R. 2010. Modeling optical properties of mineral aerosol particles by using nonsymmetric hexahedra. Appl. Opt. 49, 334-342.
    • Bohren, C. F. and Huffman, D. R. 1983. Absorption and Scattering of Light by Small Particles. New York, John Wiley & Sons, Inc.
    • Bond, T. C., Anderson, T. L. and Campbell, D. 1999. Calibration and intercomparison of filter-based measurements of visible light absorption by aerosols. Aerosol Sci. Technol. 30, 582-600.
    • Bond, T. C. and Bergstrom, R. W. 2006. Light Absorption by carbonaceous particles: an investigative review. Aerosol Sci. Technol. 40, 27-67.
    • Bond, T. C., Covert, D. S. and Mu¨ ller, T. 2009. Truncation and angularscattering corrections for absorbing aerosol in the TSI 3563 nephelometer. Aerosol Sci. Technol. 43, 866-871.
    • Brockmann, J. E. 1993. Sampling and transport of aerosols. In: Aerosol Measurement-Principles, Techniques, and Applications (eds K. Willeke and P. A. Baron). Van Nostrand Reinhold, New York, 77- 108.
    • Carrico, C. M., Kus, P., Rood, M. J., Quinn, P. K. and Bates, T. S. 2003. Mixtures of pollution, dust, sea salt, and volcanic aerosol during ACE-Asia: radiative properties as a function of relative humidity. J. Geophys. Res. 108, 8650.
    • Carrico, C. M., Rood, M. J. and Ogren, J. A. 1998. Aerosol light scattering properties at Cape Grim, Tasmania, during the First Aerosol Characterization Experiment (ACE 1). J. Geophys. Res. 103, 16565-16574.
    • Carrico, C. M., Rood, M. J., Ogren, J. A., Neusu¨ ß, C., Wiedensohler, A. and Heintzenberg, J. 2000. Aerosol Optical properties at Sagres, Portugal during ACE 2. Tellus 52B, 694-715.
    • Charlson, R. J., Covert, D. S. and Larson, T. B. 1984. Observation of the effect of humidity on light scattering by aerosols. In: Hygroscopic Aerosols (eds. L. H. Ruhnke and A. Deepak). A. Deepak, Hampton, VA, 35-44.
    • Cheng, Y. F., Eichler, H., Wiedensohler, A., Heintzenberg, J., Zhang, Y. H. and co-authors. 2006. Mixing state of elemental carbon and non-light-absorbing aerosol components derived from in situ particle optical properties at Xinken in Pearl River Delta of China. J. Geophys. Res. 111, D20204.
    • Cheng, Y. F., Wiedensohler, A., Eichler, H., Heintzenberg, J., Tesche, M. and co-authors. 2008. Relative humidity dependence of aerosol optical properties and direct radiative forcing in the surface boundary layer at Xinken in Pearl River Delta of China: an observation based numerical study. Atmos. Environ. 42, 6373-6397.
    • Chiapello, I., Bergametti, G., Chatenet, B., Bousquet, P., Dulac, F. and co-authors. 1997. Origins of African dust transported over the northeastern tropical Atlantic. J. Geophys. Res. 102, 13701-13709.
    • Covert, D. S., Charlson, R. J. and Ahlquist, N. C. 1972. A study of the relationship of chemical composition and humidity to light scattering by aerosols. J. Appl. Meteor. 11, 968-976.
    • D'Almeida, G. A., Koepke, P. and Shettle, E. P. 1991. Atmospheric Aerosols: Global Climatology and Radiative Characteristics. Hampton, VA, Deepak.
    • Fernald, F. G. 1984. Analysis of atmospheric lidar observations: some comments. Appl. Opt. 23, 652-653.
    • Forster, P., Ramaswamy, V., Artaxo, P., Berntsen, T., Betts, R. and coauthors. 2007. Changes in atmospheric constituents and in radiative forcing. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (eds S. Solomon, D. Qin, M. Manning, Z. Chen, M. Marquis, K. B. Averyt, M. Tignor and H. L. Miller). Cambridge University Press, Cambridge, United Kingdom and New York, USA.
    • Freudenthaler, V., Esselborn, M., Wiegner, M., Heese, B., Tesche, M. and co-authors. 2009. Depolarization ratio profiling at several wavelengths in pure Saharan dust during SAMUM 2006. Tellus 61B, 165-179.
    • Gasso´ , S., Hegg, D. A., Covert, D. S., Collins, D., Noone, K. J. and co-authors. 2000. Influence of humidity on the aerosol scattering coefficient and its effect on the upwelling radiance during ACE-2. Tellus 52B, 546-567.
    • Gasteiger, J., Wiegner, M., Toledano, C., Groß, S., Freudenthaler, V. and co-authors. 2011. Modeling lidar-relevant optical properties of complex mineral dust aerosols. Tellus 63B, this issue.
    • Grant, K. E., Chuang, C. C., Grossman, A. S. and Penner, J. E. 1999. Modeling the spectral optical properties of ammonium sulfate and biomass burning aerosols: parameterization of relative humidity effects and model results. Atmos. Environ. 33, 2603-2620.
    • Groß, S., Gasteiger, J., Freudenthaler, V., Wiegner, M., Geiß, A. and co-authors. 2011. Characterization of the planetary boundary layer during SAMUM-2 by means of lidar measurements. Tellus 63B, this issue.
    • Hale, G. M. and Querry, M. R. 1973. Optical constants of water in the 200-nm to 200-µm wavelength region. Appl. Opt. 12, 555-563.
    • Ha¨nel, G. 1976. The properties of atmospheric aerosol particles as functions of the relative humidity at thermodynamic equilibrium with the surrounding moist air. Adv. Geophys. 19, 74-189.
    • Ha¨nel, G. 1984. Parameterization of the influence of relative humidity on optical aerosol properties. In: Aerosols and Their Climatic Effects (eds H. E. Gerber and A. Deepak). A. Deepak, Hampton, VA, 117-122.
    • Hegg, D. A., Covert, D. S., Rood, M. J. and Hobbs, P. V. 1996. Measurements of aerosol optical properties in marine air. J. Geophys. Res. 101, 12893-12903.
    • Heintzenberg, J., Wiedensohler, A., Tuch, T. M., Covert, D. S., Sheridan, P. and co-authors. 2006. Intercomparisons and aerosol calibrations of 12 commercial integrating nephelometers of three manufacturers. J. Atmos. Oceanic Technol. 23, 902-914.
    • Hess, M., Koepke, P. and Schult, I. 1998. Optical properties of aerosols and clouds: the software package OPAC. Bull. Am. Meteorol. Soc. 79, 831-844.
    • Howell, S. G., Clarke, A. D., Shinozuka, Y., Kapustin, V. N., McNaughton, C. S. and co-authors. 2006. Influence of relative humidity upon pollution and dust during ACE-Asia: size distributions and implications for optical properties. J. Geophys. Res. 111, D06205.
    • IPCC 2007. Climate Change 2007: The Physical Science Basis. Contributions of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge, United Kingdom and New York, USA, Cambridge University Press.
    • Kalashnikova, O. V., Kahn, R., Sokolik, I. N. and Li, W. H. 2005. Ability of multiangle remote sensing observations to identify and distinguish mineral dust types: optical models and retrievals of optically thick plumes. J. Geophys. Res. 110, D18S14.
    • Kalashnikova, O. V. and Sokolik, I. N. 2002. Importance of shapes and compositions of wind-blown dust particles for remote sensing at solar wavelengths. Geophys. Res. Lett. 29, 38-31-38-34.
    • Kandler, K., Lieke, K., Benker, N., Emmel, C., Ku¨ pper, M. and coauthors. 2011. Electron microscopy of particles collected at Praia, Cape Verde, during the Saharan Mineral Dust Experiment: particle chemistry, shape, mixing state and complex refractive index. Tellus 63B, this issue.
    • Kasten, F. 1969. Visibility forecast in the phase of pre-condensation. Tellus 21, 631-635.
    • Kenny, L. C. and Gussman, R. A. 1997. Characterization and modelling of a family of cyclone aerosol preseparators. J. Aerosol Sci. 28, 677-688.
    • Kenny, L. C. and Gussman, R. A. 2000. A direct approach to the design of cyclones for aerosol-monitoring applications. J. Aerosol Sci. 31, 1407-1420.
    • Kirchstetter, T. W., Novakov, T. and Hobbs, P. V. 2004. Evidence that the spectral dependence of light absorption by aerosols is affected by organic carbon. J. Geophys. Res. 109, D21208.
    • Knippertz, P., Tesche, M., Heinold, B., Kandler, K., Toledano, C. and Esselborn, M. 2011. Dust mobilization and aerosol transport from West Africa to Cape Verde: a meteorological overview of SAMUM2. Tellus 63B, this issue.
    • Koepke, P. and Hess, M. 1988. Scattering functions of tropospheric aerosols: the effects of nonspherical particles. Appl. Opt. 27, 2422-2430.
    • Ko¨ hler, H. 1936. The nucleus in and the growth of hygroscopic droplets. Trans. Faraday Soc. 32, 1152-1161.
    • Kotchenruther, R. A., Hobbs, P. V. and Hegg, D. A. 1999. Humidification factors for atmospheric aerosols off the mid-Atlantic coast of the United States. J. Geophys. Res. 104, 2239-2251.
    • Lack, D. A., Quinn, P., Massoli, P., Bates, T., Coffman, D. and coauthors. 2009. Relative humidity dependence of light absorption by mineral dust after long-range atmospheric transport from the Sahara. Geophys. Res. Lett. 36, L24805.
    • Lee, S. D., Schneider, T., Grant, L. D. and Verkerk, J. P. 1986. Aerosols: research, risk assessment and control strategies. In: Proceedings of the II. U.S.-Dutch International Symposium on Aerosols, Williamsburg, Va.
    • Li-Jones, X., Maring, H. B. and Prospero, J. M. 1998. Effect of relative humidity on light scattering by mineral dust aerosol as measured in the marine boundary layer over the tropical Atlantic Ocean. J. Geophys. Res. 103, 31113-31121.
    • Lieke, K., Kandler, K., Scheuvens, D., Emmel, C., von Glahn, C. and co-authors. 2011. Particle chemical properties in the vertical column based on aircraft observations in the vicinity of Cape Verde Islands. Tellus 63B, this issue.
    • Liu, B. Y. H., Pui, D. Y. H., Wang, X. Q. and Lewis, C. W. 1983. Sampling of carbon fiber aerosols. Aerosol Sci. Technol. 2, 499-511.
    • Maxwell-Garnett, J. C. 1904. Colours in metal glasses and metal films. Phils. Trans. Roy. Soc. Lond. 203, 385-420.
    • Mertes, S., Dippel, B. and Schwarzenbo¨ ck, A. 2004. Quantification of graphitic carbon in atmospheric aerosol particles by Raman spectroscopy and first application for the determination of mass absorption effciencies. J. Aerosol Sci. 35, 347-361.
    • Mishchenko, M. I., Lacis, A. A., Carlson, B. E. and Travis, L. D. 1995. Nonsphericity of dust-like tropospheric aerosols: implications for aerosol remote sensing and climate modeling. Geophys. Res. Lett. 22, 1077-1080.
    • Mishchenko, M. I., Travis, L. D., Kahn, R. A. and West, R. A. 1997. Modeling phase functions for dustlike tropospheric aerosols using a shape mixture of randomly oriented polydisperse spheroids. J. Geophys. Res. 102, 16831-16847.
    • Mu¨ ller, T., Henzing, J. S., De Leeuw, G., Wiedensohler, A., Alastuey, A. and co-authors. 2010. Characterization and intercomparison of aerosol absorption photometers: result of two intercomparison workshops. Atmos. Meas. Tech. Discuss. 3, 1511-1582.
    • Mu¨ ller, T., Nowak, A., Wiedensohler, A., Sheridan, P., Laborde, M. and co-authors. 2009b. Angular illumination and truncation of three different integrating nephelometers: implications for empirical, sizebased corrections. Aerosol Sci. Technol. 43, 581-586.
    • Mu¨ ller, T., Schladitz, A., Kandler, K. and Wiedensohler, A. 2011. Spectral particle absorption coefficients, single scattering albedos, and imaginary parts of refractive indices from ground based in-situ measurements at Cape Verde Island during SAMUM-2. Tellus 63B, this issue.
    • Mu¨ ller, T., Schladitz, A., Massling, A., Kaaden, N., Kandler, K. and coauthors. 2009a. Spectral absorption coefficients and imaginary parts of refractive indices of Saharan dust during SAMUM-1. Tellus 61B, 79-95.
    • Nessler, R., Weingartner, E. and Baltensperger, U. 2005. Adaptation of Dry Nephelometer Measurements to Ambient Conditions at the Jungfraujoch. Environ. Sci. Technol. 39, 2219-2228.
    • Petters, M. D. and Kreidenweis, S. M. 2007. A single parameter representation of hygroscopic growth and cloud condensation nucleus activity. Atmos. Chem. Phys. 7, 1961-1971.
    • Quinn, P. K., Bates, T. S., Baynard, T., Clarke, A. D., Onasch, T. B., Wang, W. and co-authors. 2005. Impact of particulate organic matter on the relative humidity dependence of light scattering: a simplified parameterization. Geophys. Res. Lett. 32, L22809.
    • Ramaswamy, V., Boucher, O., Haigh, J., Hauglustaine, D., Haywood, J. and co-authors. 2001. Radiative forcing of climate change. In: Climate Change 2001: The scientific Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change (eds J. T. Houghton, Y. Ding, D. J. Griggs, M. Noguer, P. J. van der Linden and D. Xiasu). Cambridge University Press, Cambridge, United Kingdom and New York, USA, 349- 416.
    • Rosen, H., Hansen, A. D. A., Gundel, L. and Novakov, T. 1978. Identification of the optically absorbing component in urban aerosols. Appl. Opt. 17, 3859-3861.
    • Schladitz, A., Mu¨ller, T., Kaaden, N., Massling, A., Kandler, K. and co-authors. 2009. In situ measurements of optical properties at Tinfou (Morocco) during the Saharan Mineral Dust Experiment SAMUM 2006. Tellus 61B, 64-78.
    • Schladitz, A., Mu¨ller, T., Nowak, A., Kandler, K., Lieke, K., Massling, A. and Wiedensohler, A. 2011. In-situ aerosol characterization at Cape Verde. Part 1: particle number size distributions, hygroscopic growth, and state of mixing of the marine and Saharan dust aerosol. Tellus 63B, this issue.
    • Seinfeld, J. H. and Pandis, N. S. 2006. Atmospheric Chemistry and Physics: From Air Pollution to Climate Change. Hoboken, NJ, John Wiley & Sons, Inc.
    • Shettle, E. P. and Fenn, R. W. 1979. Models for the aerosols of the lower atmosphere and the effects of humidity variations on their optical properties. AFGL-TR-79-0214 Environmental Research Papers No. 675, 94 pp.
    • Tegen, I., Lacis, A. A. and Fung, I. 1996. The influence on climate forcing of mineral aerosols from disturbed soils. Nature 380, 419-422.
    • Tesche, M., Ansmann, A., Mu¨ller, D., Althausen, D., Engelmann, R. and co-authors. 2009. Vertically resolved separation of dust and smoke over Cape Verde using multiwavelength Raman and polarization lidars during Saharan Mineral Dust Experiment 2008. J. Geophys. Res. 114, D13202.
    • Tuch, T. M., Haudek, A., Mu¨ller, T., Nowak, A., Wex, H. and co-authors. 2009. Design and performance of an automatic regenerating adsorption aerosol dryer for continuous operation at monitoring sites. Atmos. Meas. Tech. 2, 417-422.
    • Tuinstra, F. and Koenig, J. L. 1970. Raman spectrum of graphite. J. Chem. Phys. 53, 1126-1130.
    • Wex, H., Neusu¨ß, C., Wendisch, M., Stratmann, F., Koziar, C. and coauthors. 2002. Particle scattering, backscattering, and absorption coefficients: an in situ closure and sensitivity study. J. Geophys. Res. 107, 8122.
    • Wiegner, M., Gasteiger, J., Kandler, K., Weinzierl, B., Rasp, K. and co-authors. 2009. Numerical simulations of optical properties of Saharan dust aerosols with emphasis on lidar applications. Tellus 61B, 180-194.
    • Wiegner, M., Quenzel, H., Rabus, D., Volker, W., Volger, P. and coauthors. 1995. Mobile three-wavelength backscatter lidar of the Meteorological Institute of the University of Munich. In: Proceedings of the Lidar and Atmospheric Sensing, Munich, Germany.
    • Winklmayr, W., Wang, H. C. and John, W. 1990. Adaptation of the Twomey Algorithm to the Inversion of Cascade Impactor Data. Aerosol Sci. Technol. 13, 322-331.
    • Yoon, S. C. and Kim, J. 2006. Influences of relative humidity on aerosol optical properties and aerosol radiative forcing during ACE-Asia. Atmos. Environ. 40, 4328-4338.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article

Collected from