Search Results - "Moehler, O."

Microbiology and atmospheric processes: the role of biological particles in cloud physics by Möhler, O., DeMott, P. J., Vali, G., Levin, Z.

“…As part of a series of papers on the sources, distribution and potential impact of biological particles in the atmosphere, this paper introduces and summarizes…”
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Laboratory investigations of the impact of mineral dust aerosol on cold cloud formation by Koehler, K. A., Kreidenweis, S. M., DeMott, P. J., Petters, M. D., Prenni, A. J., Möhler, O.

“…Dust particles represent a dominant source of particulate matter (by mass) to the atmosphere, and their emission from some source regions has been shown to be…”
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Solid Ammonium Sulfate Aerosols as Ice Nuclei: A Pathway for Cirrus Cloud Formation by Abbatt, J.P.D, Benz, S, Cziczo, D.J, Kanji, Z, Lohmann, U, Möhler, O

“…Laboratory measurements support a cirrus cloud formation pathway involving heterogeneous ice nucleation by solid ammonium sulfate aerosols. Ice formation…”
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Insights into the role of soot aerosols in cirrus cloud formation by Kärcher, B., Möhler, O., DeMott, P. J., Pechtl, S., Yu, F.

“…Cirrus cloud formation is believed to be dominated by homogeneous freezing of supercooled liquid aerosols in many instances. Heterogeneous ice nuclei such as…”
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Optical properties and mineralogical composition of different Saharan mineral dust samples: a laboratory study by Linke, C., Möhler, O., Veres, A., Mohácsi, Á., Bozóki, Z., Szabó, G., Schnaiter, M.

“…In aerosol chamber experiments optical properties of resuspended mineral dust samples of defined size distributions were measured. Extinction coefficients…”
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New cloud chamber experiments on the heterogeneous ice nucleation ability of oxalic acid in the immersion mode by Wagner, R., Möhler, O., Saathoff, H., Schnaiter, M., Leisner, T.

“…The heterogeneous ice nucleation ability of oxalic acid in the immersion mode has been investigated by controlled expansion cooling runs with airborne, ternary…”
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Results from the University of Toronto continuous flow diffusion chamber at ICIS 2007: instrument intercomparison and ice onsets for different aerosol types by Kanji, Z. A., DeMott, P. J., Möhler, O., Abbatt, J. P. D.

“…The University of Toronto continuous flow diffusion chamber (UT-CFDC) was used to study heterogeneous ice nucleation at the International Workshop on Comparing…”
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Heterogeneous ice nucleation activity of bacteria: new laboratory experiments at simulated cloud conditions by Möhler, O., Georgakopoulos, D. G., Morris, C. E., Benz, S., Ebert, V., Hunsmann, S., Saathoff, H., Schnaiter, M., Wagner, R.

“…The ice nucleation activities of five different Pseudomonas syringae, Pseudomonas viridiflava and Erwinia herbicola bacterial species and of Snomax™ were…”
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Single ice crystal measurements during nucleation experiments with the depolarization detector IODE by Nicolet, M., Stetzer, O., Lüönd, F., Möhler, O., Lohmann, U.

“…In order to determine the efficiency of different aerosol particles to nucleate ice, an Ice Optical DEpolarization detector (IODE) was developed to distinguish…”
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High variability of the heterogeneous ice nucleation potential of oxalic acid dihydrate and sodium oxalate by Wagner, R., Möhler, O., Saathoff, H., Schnaiter, M., Leisner, T.

“…The heterogeneous ice nucleation potential of airborne oxalic acid dihydrate and sodium oxalate particles in the deposition and condensation mode has been…”
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An aerosol chamber investigation of the heterogeneous ice nucleating potential of refractory nanoparticles by Saunders, R. W., Möhler, O., Schnaiter, M., Benz, S., Wagner, R., Saathoff, H., Connolly, P. J., Burgess, R., Murray, B. J., Gallagher, M., Wills, R., Plane, J. M. C.

“…Nanoparticles of iron oxide (crystalline and amorphous), silicon oxide and magnesium oxide were investigated for their propensity to nucleate ice over the…”
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Manchester Ice Nucleus Counter (MINC) measurements from the 2007 International workshop on Comparing Ice nucleation Measuring Systems (ICIS-2007) by Jones, H. M., Flynn, M. J., DeMott, P. J., Möhler, O.

“…An ice nucleus counter was developed and constructed to enable investigation of potential ice nucleating materials. The Manchester Ice Nucleus Chamber (MINC)…”
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The AIDA soot aerosol characterisation campaign 1999 by Saathoff, H., Moehler, O., Schurath, U., Kamm, S., Dippel, B., Mihelcic, D.

“…An intensive soot aerosol characterisation campaign was organised in October 1999 at the large aerosol chamber facility AIDA in Karlsruhe, with the…”
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Heterogeneous ice nucleation on atmospheric aerosols: a review of results from laboratory experiments by Hoose, C, Möhler, O

“…A small subset of the atmospheric aerosol population has the ability to induce ice formation at conditions under which ice would not form without them…”
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Technical Note: A proposal for ice nucleation terminology by Vali, G, DeMott, P. J, Möhler, O, Whale, T. F

“…Terminology dealing with ice nucleation in the atmosphere, in biological systems, and in other areas has not kept pace with the growth of empirical evidence…”
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Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles by DeMott, P. J, Prenni, A. J, McMeeking, G. R, Sullivan, R. C, Petters, M. D, Tobo, Y, Niemand, M, Möhler, O, Snider, J. R, Wang, Z, Kreidenweis, S. M

“…Data from both laboratory studies and atmospheric measurements are used to develop an empirical parameterization for the immersion freezing activity of natural…”
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Studies of heterogeneous freezing by three different desert dust samples by Connolly, P. J., Möhler, O., Field, P. R., Saathoff, H., Burgess, R., Choularton, T., Gallagher, M.

“…We present results of experiments at the aerosol interactions and dynamics in the atmosphere (AIDA) chamber facility looking at the freezing of water by three…”
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Ice nucleation by cellulose and its potential contribution to ice formation in clouds by Hiranuma, N., Möhler, O., Yamashita, K., Tajiri, T., Saito, A., Kiselev, A., Hoffmann, N., Hoose, C., Jantsch, E., Koop, T., Murakami, M.

“…Some biological particles act as ice nuclei in the atmosphere, affecting clouds and precipitation. Cloud-chamber experiments demonstrate that cellulose…”
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Secondary organic aerosol formation from gasoline vehicle emissions in a new mobile environmental reaction chamber by Platt, S. M, El Haddad, I, Zardini, A. A, Clairotte, M, Astorga, C, Wolf, R, Slowik, J. G, Temime-Roussel, B, Marchand, N, Ježek, I, Drinovec, L, Močnik, G, Möhler, O, Richter, R, Barmet, P, Bianchi, F, Baltensperger, U, Prévôt, A. S. H

“…We present a new mobile environmental reaction chamber for the simulation of the atmospheric aging of different emission sources without limitation from the…”
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Intercomparing different devices for the investigation of ice nucleating particles using Snomax ® as test substance by Wex, H., Augustin-Bauditz, S., Boose, Y., Budke, C., Curtius, J., Diehl, K., Dreyer, A., Frank, F., Hartmann, S., Hiranuma, N., Jantsch, E., Kanji, Z. A., Kiselev, A., Koop, T., Möhler, O., Niedermeier, D., Nillius, B., Rösch, M., Rose, D., Schmidt, C., Steinke, I., Stratmann, F.

“…Seven different instruments and measurement methods were used to examine the immersion freezing of bacterial ice nuclei from Snomax® (hereafter Snomax), a…”
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