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Deep convection as a source of new particles in the midlatitude upper troposhere

Creator:

Twohy, Cynthia, Clement, Charles F., Gandrud, Bruce W., Weinheimer, Andrew J., Campos, Teresa L., Baumgardner, Darrel, Brune, William H., Faloona, Ian, Sachse, Glen W., Vay, Stephanie A., and Tan, David

Abstract:

A case study of new particle formation in the region downwind of a mesoscale convective system stretching across much of the central United States is presented. Airborne measurements were made of condensation nuclei (CN), cloud particle surface area, water vapor, and other gases. CN concentrations were greatly enhanced above and...

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Article

Full Text:

@particlemetrics.com) G. W. Sachse and Stephanie A. Vay, NASA Langley Research Center, Hampton, VA 23681-2199, USA
Prevalence of ice-supersaturated regions in the upper troposphere : implications for optically thin ice cloud formation

Creator:

Jensen, Eric J., Toon, Owen B., Vay, Stephanie A., Ovarlez, Joelle, May, Randy, Bui, T. P., Twohy, Cynthia, Gandrud, Bruce W., Pueschel, Rudolf F., and Schumann, Ulrich

Abstract:

In situ measurements of water vapor and temperature from recent aircraft campaigns have provided evidence that the upper troposphere is frequently supersaturated with respect to ice. The peak relative humidities with respect to ice (RHI) occasionally approached water saturation at temperatures ranging from -40°C to -70°C in each of the...

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Article

Full Text:

Stephanie A \•av, 3 .Jo611e Ovarlez 4 Randy May, s'• T. P. Bui. • Cynthia. H. Twohy, 7's Bruce W. Gandrud

ScholarsArchive@OSU

Deep convection as a source of new particles in the midlatitude upper troposhere

Prevalence of ice-supersaturated regions in the upper troposphere : implications for optically thin ice cloud formation

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