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The NASA-Ames Research Center stratospheric aerosol model. 2. Sensitivity studies and comparison with observatoriesSensitivity tests were performed on a one-dimensional, physical-chemical model of the unperturbed stratospheric aerosols, and model calculations were compared with observations. The tests and comparisons suggest that coagulation controls the particle number mixing ratio, although the number of condensation nuclei at the tropopause and the diffusion coefficient at high altitudes are also important. The sulfur gas source strength and the aerosol residence time are much more important than the supply of condensation nuclei in establishing mass and large particle concentrations. The particle size is also controlled mainly by gas supply and residence time. In situ observations of the aerosols and laboratory measurements of aerosols, parameters that can provide further information about the physics and chemistry of the stratosphere and the aerosols found there are provided.
Document ID
19790013549
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Toon, O. B. (NASA Ames Research Center Moffett Field, CA, United States)
Turco, R. P. (R and D Associates Marina del Rey, Calif., United States)
Hamill, P. (NASA Ames Research Center Moffett Field, CA, United States)
Kiang, C. S. (National Center for Atmospheric Research Moffett Field, CA, United States)
Whitten, R. C. (NASA Ames Research Center)
Date Acquired
September 3, 2013
Publication Date
April 1, 1979
Subject Category
Meteorology And Climatology
Report/Patent Number
NASA-TP-1363
A-7551
Accession Number
79N21720
Funding Number(s)
PROJECT: RTOP 198-30-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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