Secondary Ice Production : Current State of the Science and Recommendations for the Future

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http://hdl.handle.net/10138/202487

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Field , P R , Lawson , R P , Brown , P R A , Lloyd , G , Westbrook , C , Moisseev , D , Miltenberger , A , Nenes , A , Blyth , A , Choularton , T , Connolly , P , Buehl , J , Crosier , J , Cui , Z , Dearden , C , DeMott , P , Flossmann , A , Heymsfield , A , Huang , Y , Kalesse , H , Kanji , Z A , Korolev , A , Kirchgaessner , A , Lasher-Trapp , S , Leisner , T , McFarquhar , G , Phillips , V , Stith , J & Sullivan , S 2017 , Secondary Ice Production : Current State of the Science and Recommendations for the Future . in Ice Formation and Evolution in Clouds and Precipitation : Measurement and Modeling Challenges . Meteorological monographs , vol. 58 , American Meteorological Society , Boston, MA , pp. 7.1-7.20 . https://doi.org/10.1175/AMSMONOGRAPHS-D-16-0014.1

Title: Secondary Ice Production : Current State of the Science and Recommendations for the Future
Author: Field, P. R.; Lawson, R. P.; Brown, P. R. A.; Lloyd, G.; Westbrook, C.; Moisseev, D.; Miltenberger, A.; Nenes, A.; Blyth, A.; Choularton, T.; Connolly, P.; Buehl, J.; Crosier, J.; Cui, Z.; Dearden, C.; DeMott, P.; Flossmann, A.; Heymsfield, A.; Huang, Y.; Kalesse, H.; Kanji, Z. A.; Korolev, A.; Kirchgaessner, A.; Lasher-Trapp, S.; Leisner, T.; McFarquhar, G.; Phillips, V.; Stith, J.; Sullivan, S.
Contributor: University of Helsinki, Department of Physics
Publisher: American Meteorological Society
Date: 2017-04-06
Language: eng
Number of pages: 20
Belongs to series: Ice Formation and Evolution in Clouds and Precipitation Measurement and Modeling Challenges
Belongs to series: Meteorological monographs
ISBN: 978-1-944970-26-0
URI: http://hdl.handle.net/10138/202487
Abstract: Measured ice crystal concentrations in natural clouds at modest supercooling (temperature ~>-10°C) are often orders of magnitude greater than the number concentration of primary ice nucleating particles. Therefore, it has long been proposed that a secondary ice production process must exist that is able to rapidly enhance the number concentration of the ice population following initial primary ice nucleation events. Secondary ice production is important for the prediction of ice crystal concentration and the subsequent evolution of some types of clouds, but the physical basis of the process is not understood and the production rates are not well constrained. In November 2015 an international workshop was held to discuss the current state of the science and future work to constrain and improve our understanding of secondary ice production processes. Examples and recommendations for in situ observations, remote sensing, laboratory investigations, and modeling approaches are presented.
Subject: 1171 Geosciences
cloud physics
ICE CLOUDS
Atmospheric Science
secondary ice
ICE NUCLEI
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