Measurements of the concentration and composition of nuclei for cirrus formation
NSF National Center for Atmospheric Research · National Oceanic and Atmospheric Administration · +4 more institutions
Abstract
This article addresses the need for new data on indirect effects of natural and anthropogenic aerosol particles on atmospheric ice clouds. Simultaneous measurements of the concentration and composition of tropospheric aerosol particles capable of initiating ice in cold (cirrus) clouds are reported. Measurements support that cirrus formation occurs both by heterogeneous nucleation by insoluble particles and homogeneous (spontaneous) freezing of particles containing solutions. Heterogeneous ice nuclei concentrations in the cirrus regime depend on temperature, relative humidity, and the concentrations and physical and chemical properties of aerosol particles. The cirrus-active concentrations of heterogeneous…
Citation impact
- FWCI
- 11.70
- Percentile
- 100%
- References
- 35
Authors
8- PJPaul J. DeMottCorresponding
NSF National Center for Atmospheric Research, National Oceanic and Atmospheric Administration, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Desert Research Institute, Colorado State University
- DJDaniel J. Cziczo
NSF National Center for Atmospheric Research, National Oceanic and Atmospheric Administration, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Desert Research Institute, Colorado State University
- AJA. J. Prenni
NSF National Center for Atmospheric Research, National Oceanic and Atmospheric Administration, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Desert Research Institute, Colorado State University
- DMDamien M. Murphy
NSF National Center for Atmospheric Research, National Oceanic and Atmospheric Administration, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Desert Research Institute, Colorado State University
- SMSonia M. Kreidenweis
NSF National Center for Atmospheric Research, National Oceanic and Atmospheric Administration, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Desert Research Institute, Colorado State University
Topics & keywords
- Cirrus
- Ice nucleus
- Aerosol
- Relative humidity
- Nucleation
- Atmospheric sciences
- Troposphere
- Homogeneous
- Life below water