Mountaintop and radar measurements of anthropogenic aerosol effects on snow growth and snowfall rate

Randolph D. Borys; Douglas H. Lowenthal; Stephen A. Cohn; William O.J. Brown

doi:10.1029/2002gl016855

Mountaintop and radar measurements of anthropogenic aerosol effects on snow growth and snowfall rate

Randolph D. Borys
, Douglas H. Lowenthal
, Stephen A. Cohn
, William O.J. Brown

In-Situ Sensing Facility

Desert Research Institute
National Center for Atmospheric Research

Research output: Contribution to journal › Article › peer-review

172 Scopus citations

Abstract

A field campaign designed to investigate the second indirect aerosol effect (reduction of precipitation by anthropogenic aerosols which produce more numerous and smaller cloud droplets) was conducted during winter in the northern Rocky Mountains of Colorado. Combining remote sensing and in-situ mountain-top measurements it was possible to show higher concentrations of anthropogenic aerosols (∼1 μg m^-3) altered the microphysics of the lower orographic feeder cloud to the extent that the snow particle rime growth process was inhibited, or completely shut off, resulting in lower snow water equivalent precipitation rates.

Original language	English
Pages (from-to)	45-1 - 45-4
Journal	Geophysical Research Letters
Volume	30
Issue number	10
DOIs	https://doi.org/10.1029/2002gl016855
State	Published - May 15 2003

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10.1029/2002gl016855

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abstract = "A field campaign designed to investigate the second indirect aerosol effect (reduction of precipitation by anthropogenic aerosols which produce more numerous and smaller cloud droplets) was conducted during winter in the northern Rocky Mountains of Colorado. Combining remote sensing and in-situ mountain-top measurements it was possible to show higher concentrations of anthropogenic aerosols (∼1 μg m-3) altered the microphysics of the lower orographic feeder cloud to the extent that the snow particle rime growth process was inhibited, or completely shut off, resulting in lower snow water equivalent precipitation rates.",

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AB - A field campaign designed to investigate the second indirect aerosol effect (reduction of precipitation by anthropogenic aerosols which produce more numerous and smaller cloud droplets) was conducted during winter in the northern Rocky Mountains of Colorado. Combining remote sensing and in-situ mountain-top measurements it was possible to show higher concentrations of anthropogenic aerosols (∼1 μg m-3) altered the microphysics of the lower orographic feeder cloud to the extent that the snow particle rime growth process was inhibited, or completely shut off, resulting in lower snow water equivalent precipitation rates.

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Mountaintop and radar measurements of anthropogenic aerosol effects on snow growth and snowfall rate

Abstract

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