During the one-day meeting, 23 papers were presented, including 4 keynote talks.
The list of presentation is included below, with links to the abstracts, to the full presentations and with links to publications. The order of the papers in the list follows the sequence in which they were included in the program.
|INTRODUCTION History, accomplishments and major issues to resolve.||Gabor Vali||full|
|KEYNOTE PAPER The discovery of biological ice nuclei: early successes, missteps and some remaining questions.||R.C. Schnell||abs||full|
|High-resolution ice nucleation spectra of sea-ice bacteria: Implications for cloud formation and life in frozen environments.||B. Swanson, K. Junge||abs||full||link|
|Evidence for biological ice nucleating particles in snowfall.||B. Christner, C. Morris, R. Cai, M. Skidmore, S. Montross, Ch. Foreman, D. Sands||abs||link|
|The ability of leaf litter debris to initiate ice phase formation in the atmosphere.||K. Koehler, S.M. Kreidenweis, P.J. DeMott, A. Guenther, R.Fall||abs||full|
|Isolation of ice-nucleation active microrganisms from cloud water.||A-M. Delort, P. Amato, M. Sancelme||abs||full|
|KEYNOTE PAPER Is there a role for ice nucleation activity in bacterial dissemination?||D. Sands, C.E. Morris, D.G. Georgakopoulos||abs||full|
|Biological characterization of atmospheric aerosol particles.||J. Nowoisky, V. Despres, J. Cimbal, M. Klose, R. Conrad, M.O. Andreae, U. Poeschl||abs|
|Diversity of bacteria producing pigmented colonies in aerosol, snow and soil samples from remote glacial areas (Antarctica, Alps, Andes).||E. Gonzalez-Toril, R.J. Delmas, J.-R. Petit, J. Komarek, R. Amils, J. Elster||abs||full|
|Contribution of fungi to primary biogenic aerosols in the atmosphere: active discharge of spores, carbohydrates, and organic ions by asco- and basidiomycota.||W. Elbert, P.E. Taylor, M.O. Andreae, U. Poeschl||abs||full|
|Biogenic ice nuclei studies proposed for the BEACHON project.||R. Rasmussen, A. Guenther||abs||full|
|KEYNOTE PAPER Atmospheric ice nuclei concentrations and characteristics: constraining the role of biological ice nuclei.||P. DeMott, M. Richardson, D. Cziczo, A. Prenni, S. Kreidenweis||abs||full|
|New cloud chamber studies on the ice nucleation efficiency of airborne bacteria.||O. Moehler, D.G. Georgakopoulos, C. Morris||abs||full|
|Laboratory studies of ice nucleating ability of pollen and model simulations of the effects of biological aerosol particles on cloud microphysics.||K. Diehl, M. Simmel, S. Wurzler, N. von Blohn, S.K. Mitra||abs||full|
|Modeling study of the role of bacteria on ice nucleation processes.||Jiming Sun, P.A. Ariya, H.G. Leighton, M.K. Yua||abs|
|Cloud modeling with an empirical parameterization of heterogeneous ice nucleation for multiple aerosol species: role of biogenic particles.||V. Phillips, C. Andronache, P. DeMott, C.E. Morris, D.C. Sands||abs|
|Supercooling in over-wintering pine beetle larvae.||R. Schnell, R.C. Schnell||abs||full|
|KEYNOTE PAPER Detecting ice nucleating bacteria in environmental samples using PCR of the gene conferring ice nucleating activity.||C. Morris, C. Guilbaud, H. Ahern, H. Dominguez, C. Glaux, B. Moffett, T. Hill||abs||full|
|Genetic analysis and diversity of primary biogenic aerosol particles.||V. Despres, J. Nowoisky, M. Klose, R. Conrad, M.O. Andreae, U. Poeschl||abs||full|
|Characterization of snowborne taxa and bioaerosols in several Arctic and sub-Arctic sites.||M. Amyot, P.A. Ariya, G. Kos, R. Mortazavi||abs|
|Snowborne taxa characterization and impact on ice nucleation.||R. Mortazavi, M. Amyot, P.A. Ariya||abs|
|How to enumerate airborne microorganisms?||R. Thyrhaug, J. Einen, R-A. Sandaa, M. Heldal, G. Brtabak||abs||full|
|Fluorescent pseudomonads in Scottish cloud and rain water: diversity, ice nucleation activity and biosurfactant production.||T. Hill, H. Ahern, K. Walsh, B. Moffett||abs||full|
Some photographs taken during the meeting and afterwards.
On the index page of pictures, clicking on an image will bring up an enlarged view of that image. Above that image navigation signs appear to move forward or backwards in the collections, or to return to the index page.
The material below was posted in advance of the meeting.
Biogenic ice nuclei are among the most active of the known ice nucleators, yet their contribution to atmospheric processes has not been clarified. Assessments of an atmospheric role are gathering momentum as techniques of detection improve, as understanding of biological sources is growing, and as observations and modelling of clouds identify the role of early ice nucleation in the formation of precipitation and in determining other cloud characteristics. The session will bring together experts from the atmospheric and biological sciences to review knowledge about the nature and distribution of biogenic ice nuclei, to assess evidence for the role of biogenic ice nuclei in the atmosphere, and for discussions of future research directions. The symposium will include invited and contributed papers and posters.
Because of the interdisciplinary nature of the topic, the lack of dedicated laboratories or institutes addressing the problem, and the dispersion of relevant publications in many different journals, it is difficult for young investigators and students to know about this topic and to consider working on it. Thus, special emphasis is given by the organizers to attracting young scientists and graduate strudents who are either working on a topic covered by the symposium or who intend to extend their interest to this field. To this end, travel support of roughly $500 may be provided for about 15 attendees. Funding for this is available thanks to a special grant from the National Science Foundation.
In the distribution of travel funds preference will be given to (i) young investigators already engaged in the field and who submit an abstract, and those who can, and likely will, extend their activities in an organic way to encompass the topic, and (ii) graduate students, if their supervisor supports the idea of their undertaking a relevant thesis or dissertation project.
Requests for travel support should be addressed to the Lead Convener. Letters of no more than 150 words should be sent by email or postal mail outlining the attendees plans for participation in the symposium, and beyond. Allocation of the funds will be made by a small committee.
Abstract submission deadline set by IUGG is February 28, 2007 for email transmission, and February 10, 2007 for postal mail. The program for this symposium will be finalized by the end of March, so those planning to present a paper or a poster, and those requesting travel support should contact the conveners as early as possible, but no later than March 10, 2007.
Abstract format and other information can be found via this link.. To have full access to the IUGG XXIV web site it is necessary to first set up a login and password.
Information about other ICCP symposia during IUGG 2007 can be found via this link.
The 17th International Conference on Nucleation and Atmospheric Aerosols (ICNAA)
will be held on August 13-17, 2007, in Galway, Ireland. Click here for more information about that conference.
This meeting will take up the theme of biogenic ice nucleation that saw very rapid developments from the mid-1970s to the mid-1990s, with a series of six international conferences marking the pace. Research then settled to a less visible stage of steady utilization of the groundwork that has been laid and to a more gradual accumulation of new knowledge. During that same period, the broader fields of atmospheric chemistry, organic aerosols and related subjects developed at remarkable speed.Here is a photo of the participants of the 1993 conference.
In March 2006, a workshop was held in Avignon, supported by the European Science Foundation, titled "Microbiological Meteorology: Working at the Intersection of Biology, Physics and Meteorology to Understand and Regulate the Microbial Component of Weather". A summary of this workshop is here. A photo of the participants can be reached via this link; a list of names and contacts is included in the report mentioned above.
More material about the workshop is available via this link.
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