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Browsing by Author "Subramanian, R."

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Browsing by Author "Subramanian, R."

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  • Ice Initiation by Aerosol Particles: Measured and Predicted Ice Nuclei Concentrations versus Measured Ice Crystal Concentrations in an Orographic Wave Cloud 
    Eidhammer, T.; DeMott, P. J.; Prenni, A. J.; Petters, M. D.; Twohy, Cynthia; Rogers, D. C.; Stith, J.; Heymsfield, A.; Wang, Z.; Pratt, K. A.; Prather, K. A.; Murphy, S. M.; Seinfeld, J. H.; Subramanian, R.; Kreidenweis, S. M. (American Meteorological Society, 2010-08)
    The initiation of ice in an isolated orographic wave cloud was compared with expectations based on ice nucleating aerosol concentrations and with predictions from new ice nucleation parameterizations applied in a cloud ...
  • Improvements to an Empirical Parameterization of Heterogeneous Ice Nucleation and Its Comparison with Observations 
    Phillips, Vaughan T. J.; Demott, Paul J.; Andronache, Constantin; Pratt, Kerri A.; Prather, Kimberly A.; Subramanian, R.; Twohy, Cynthia (American Meteorological Society, 2013-02)
    A framework for an empirical parameterization (EP) of heterogeneous nucleation of ice crystals by multiple species of aerosol material in clouds was proposed in a 2008 paper by the authors. The present paper reports impr ...
  • In Situ Chemical Characterization of Aged Biomass-Burning Aerosols Impacting Cold Wave Clouds 
    Pratt, Kerri A.; Heymsfield, Andrew J.; Twohy, Cynthia; Murphy, Shane M.; DeMott, Paul J.; Hudson, James G.; Subramanian, R.; Wang, Zhien; Seinfeld, John H.; Prather, Kimberly A. (American Meteorological Society, 2010-08)
    During the Ice in Clouds Experiment–Layer Clouds (ICE-L), aged biomass-burning particles were identified within two orographic wave cloud regions over Wyoming using single-particle mass spectrometry and electron microsco ...
  • Relationships of Biomass-Burning Aerosols to Ice in Orographic Wave Clouds 
    Twohy, Cynthia; DeMott, Paul J.; Pratt, Kerri A.; Subramanian, R.; Kok, Gregory L.; Murphy, Shane M.; Lersch, Traci; Heymsfield, Andrew J.; Wang, Zhien; Prather, Kim A.; Seinfeld, John H. (American Meteorological Society, 2010-08)
    Ice concentrations in orographic wave clouds at temperatures between −24° and −29°C were shown to be related to aerosol characteristics in nearby clear air during five research flights over the Rocky Mountains. When clou ...
  • Scavenging of black carbon by ice crystals over the northern Pacific 
    Baumgardner, D.; Subramanian, R.; Twohy, Cynthia; Stith, J.; Kok, Gregory L. (American Geophysical Union, 2008)
    Airborne measurements over the northern Pacific are evaluated to characterize properties of black carbon (BC) in cirrus crystal residuals and background aerosols in the upper troposphere. Although the mass and number ...

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