Results 31 to 40 of about 617,235 (290)

Freezing nucleation apparatus puts new slant on study of biological ice nucleators in precipitation [PDF]

, 2014
For decades, drop-freezing instruments have contributed to a better understanding of biological ice nucleation and its likely implications for cloud and precipitation development. Yet, current instruments have limitations.
Stopelli, Emiliano, E. Stopelli, C. Alewell, F. Conen, C. E. Morris, Zimmermann, L., L. Zimmermann, Alewell, Christine, Conen, F., Zimmermann, Lukas, Conen, Franz, Alewell, C., Morris, Cindy E.   +12 more
core   +2 more sources

Micro-thermography for imaging ice crystal growth and nucleation inside non-transparent materials [PDF]

, 2023
Ice crystal growth and nucleation rate measurements are usually done using visible light micros-copy in liquid and transparent samples. Yet, the understanding of important practical problems depends on monitoring ice growth inside solid materials.
Martin , Zalazar, Ran, Drori, Fredy, Zypman   +2 more
core   +2 more sources

A new temperature- and humidity-dependent surface site density approach for deposition ice nucleation [PDF]

Atmospheric Chemistry and Physics, 2015
Deposition nucleation experiments with Arizona Test Dust (ATD) as a surrogate for mineral dusts were conducted at the AIDA cloud chamber at temperatures between 220 and 250 K.
I. Steinke, C. Hoose, O. Möhler, P. Connolly, T. Leisner   +4 more
doaj   +1 more source

The role of organic aerosols in homogeneous ice formation [PDF]

, 2004
Kärcher B, Koop T. The role of organic aerosols in homogeneous ice formation. ATMOSPHERIC CHEMISTRY AND PHYSICS. 2005;5(3):703-714.Recent field observations suggest that the fraction of organic-containing aerosol particles in ice cloud particles is ...
Kärcher, B, Koop, T., Koop, Thomas ; https://orcid.org/, Kärcher, B., T. Koop, B. Kärcher   +5 more
core   +2 more sources

Ice nucleation properties of fine ash particles from the Eyjafjallajökull eruption in April 2010 [PDF]

Atmospheric Chemistry and Physics, 2011
During the eruption of the Eyjafjallajökull volcano in the south of Iceland in April/May 2010, about 40 Tg of ash mass were emitted into the atmosphere.
I. Steinke, O. Möhler, A. Kiselev, M. Niemand, H. Saathoff, M. Schnaiter, J. Skrotzki, C. Hoose, T. Leisner   +8 more
doaj   +1 more source

Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect [PDF]

, 2006
Zobrist B, Marcolli C, Koop T, et al. Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect. ATMOSPHERIC CHEMISTRY AND PHYSICS.
Koop, Thomas, Cziczo, Daniel J., Corti, Thierry, Murphy, D. M., Fueglistaler, Stephan, B. Zobrist, P. K. Hudson, Koop, T., Hudson, P.K., Koop, Thomas ; https://orcid.org/, Krieger, U. K., Corti, T., Lohmann, Ulrike, Thomson, D. S., U. K. Krieger, Marcolli, C., D. S. Thomson, D. J. Cziczo, T. Corti, T. Peter, U. Lohmann, Lohmann, U., Peter, Thomas, T. Koop, Luo, Beiping P., Murphy, Daniel M., A. A. Zardini, Krieger, Ulrich; id_orcid, Luo, B. P., Hudson, P. K., Thomson, D.S., B. P. Luo, Zardini, A., Cziczo, D. J., Zardini, A. A., Zardini, Alessandro A., D. M. Murphy, C. Marcolli, S. Fueglistaler, Peter, T., Marcolli, Claudia, Zobrist, Bernhard, Zobrist, B., Fueglistaler, S.   +43 more
core   +2 more sources

Identification of a New Ice-nucleating Bacterium and Its Ice Nucleation Properties

Agricultural and Biological Chemistry, 1990
A new ice-nucleating bacterium, KUEN-3, was isolated from strawberry leaves. The ice-nucleating bacterium was found in the pale yellow colony group. Strain KUEN-3 was identified as Erwinia uredovora from its taxonomical characteristics. When strain KUIN-3 was cultured aerobically in a medium consisting of Simmons-citric acid broth (pH 6.1) for 24hr at ...
OBATA, Hitoshi, TAKINAMI, Kouji, TANISHITA, Jun-ichi, HASEGAWA, Yoshie, KAWATE, Shohei, TOKUYAMA, Tai, UENO, Teruo   +6 more
openaire   +2 more sources

Chemical composition of ambient aerosol, ice residues and cloud droplet residues in mixed-phase clouds: single particle analysis during the Cloud and Aerosol Characterization Experiment (CLACE 6) [PDF]

, 2009
Two different single particle mass spectrometers were operated in parallel at the Swiss High Alpine Research Station Jungfraujoch (JFJ, 3580 m a.s.l.) during the Cloud and Aerosol Characterization Experiment (CLACE 6) in February and March 2007.
Cziczo, Daniel J., Curtius, Joachim, F. Drewnick, Cziczo, D.J., Klimach, Thomas, S. Borrmann, Kamphus, M., D. J. Cziczo, Keller, Livia, M. Kamphus, Drewnick, Frank, Mertes, Stephan, Borrmann, Stephan, Curtius, J., Ettner-Mahl, Matthias, Keller, L., Mertes, S., J. Curtius, Ettner-Mahl, M., Klimach, T., Borrmann, S., Kamphus, Michael, L. Keller, M. Ettner-Mahl, Drewnick, F., S. Mertes, T. Klimach   +26 more
core   +2 more sources

Ice Nucleation Activity in Lichens [PDF]

Applied and Environmental Microbiology, 1988
A newly discovered form of biological ice nucleus associated with lichens is described. Ice nucleation spectra of a variety of lichens from the southwestern United States were measured by the drop-freezing method. Several epilithic lichen samples of the genera Rhizoplaca, Xanthoparmelia , and Xanthoria
openaire   +2 more sources

Ubiquity of Biological Ice Nucleators in Snowfall [PDF]

Science, 2008
Despite the integral role of ice nucleators (IN) in atmospheric processes leading to precipitation, their sources and distributions have not been well established. We examined IN in snowfall from mid- and high-latitude locations and found that the most active were biological in origin.
Christner, Brent C., Morris, Cindy E., Foreman, Christine M., Cai, Rongman, Sands, David   +4 more
openaire   +3 more sources