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There are a total of 12 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Mount St. Helens aerosol evolution
Author(s): Oberbeck, V. R.; Farlow, N. H.; Fong, W.; Snetsinger, K. G.; Ferry, G. V.; Hayes, D. M.
Abstract: Stratospheric aerosol samples were collected using a wire impactor during the year following the eruption of Mount St. Helens. Analysis of samples shows that aerosol volume increased for 6 months due to gas-to-particle ...
NASA Center: Ames Research Center
Publication Year: 1982
Added to NTRS: 2008-07-30
Accession Number: 82N31727; Document ID: 19820023851; Report Number: A-8981, NAS 1.15:84265, NASA-TM-84265
Time variations of aerosols in the stratosphere following Mount St. Helens eruptions
Author(s): Farlow, N. H.; Snetsinger, K. G.; Oberbeck, V. R.; Ferry, G. V.; Polkowski, G.; Hayes, D. M.
Abstract: Samples of stratospheric aerosols collected with U-2 aircraft for several months following the first three major eruptions of Mount St. Helens were analyzed for ash and liquid acid content. Ash grain sizes and compositions ...
NASA Center: Ames Research Center
Publication Year: 1982
Added to NTRS: 2006-08-02
Accession Number: 83N11540; Document ID: 19830003270
Stratospheric aerosols - Undissolved granules and physical state
Author(s): Farlow, N. H.; Hayes, D. M.; Lem, H. Y.
Abstract: The physical state of stratospheric aerosol particles was studied along with the nature of included undissolved granules. It was found that: (1) undissolved granules are present in only a third of the aerosol particles and ...
NASA Center: Ames Research Center
Publication Year: 1977
Added to NTRS: 2004-11-03
Accession Number: 78A13830; Document ID: 19780029921
Stratospheric aerosols in the intertropical convergence zone, Panama Canal zone
Author(s): Farlow, N. H.; Ferry, G. V.; Lem, H. Y.; Hayes, D. M.
Abstract: To investigate whether injection sources of the stratospheric aerosol layer could be detected in the tropical stratosphere, an examination of the aerosol vertical and horizontal size distribution around the Intertropical ...
NASA Center: Ames Research Center
Publication Year: 1979
Added to NTRS: 2004-11-03
Accession Number: 79N26725; Document ID: 19790018554
Mount Saint Helens aerosol evolution
Author(s): Oberbeck, V. R.; Farlow, N. H.; Snetsinger, K. G.; Ferry, G. V.; Fong, W.; Hayes, D. M.
Abstract: Stratospheric aerosol samples were collected using a wire impactor during the year following the eruption of Mt. St. Helens. Analysis of samples shows that aerosol volume increased for 6 months due to gas-to-particle ...
NASA Center: Ames Research Center
Publication Year: 1982
Added to NTRS: 2004-11-03
Accession Number: 82A44865; Document ID: 19820061330
Latitudinal variations of stratospheric aerosols
Author(s): Farlow, N. H.; Ferry, G. V.; Lem, H. Y.; Hayes, D. M.
Abstract: We have obtained stratospheric aerosols from tropical to northern latitudes using special collectors on U-2 aircraft during 1976 and 1977. Aerosols characterized by large numbers of small particles are found in the tropical ...
NASA Center: Ames Research Center
Publication Year: 1979
Added to NTRS: 2004-11-03
Accession Number: 79A25355; Document ID: 19790041342
Effect of the eruption of El Chichon stratospheric aerosol size and composition
Author(s): Oberbeck, V. R.; Danielsen, E. F.; Snetsinger, K. G.; Ferry, G. V.; Fong, W.; Hayes, D. M.
Abstract: Dominant effects of the El Chichon eruption on stratospheric aerosols at 19.8 to 20.7 km are: (1) vapor depositional growth of the small-aerosol (background) mode; (2) development of a large-particle mode by sedimentation ...
NASA Center: Ames Research Center
Publication Year: 1983
Added to NTRS: 2004-11-03
Accession Number: 84A21409; Document ID: 19840038622
Size distributions and mineralogy of ash particles in the stratosphere from eruptions of Mount St. Helens
Author(s): Farlow, N. H.; Oberbeck, V. R.; Snetsinger, K. G.; Ferry, G. V.; Polkowski, G.; Hayes, D. M.
Abstract: Samples from the stratosphere obtained by U-2 aircraft after the first three major eruptions of Mount St. Helens contained large globules of liquid acid and ash. Because of their large size, these globules had disappeared ...
NASA Center: Ames Research Center
Publication Year: 1981
Added to NTRS: 2004-11-03
Accession Number: 81A22948; Document ID: 19810038544
Nitrogen-sulfur compounds in stratospheric aerosols
Author(s): Farlow, N. H.; Snetsinger, K. G.; Hayes, D. M.; Lem, H. Y.; Tooper, B. M.
Abstract: Two forms of nitrosyl sulfuric acid (NOHSO4 and NOHS2O7) have been tentatively identified in stratospheric aerosols. The first of these can be formed either directly from gas reactions of NO2 with SO2 or by gas-particle ...
NASA Center: Ames Research Center
Publication Year: 1978
Added to NTRS: 2004-11-03
Accession Number: 79A19071; Document ID: 19790035058
Altitude variations in stratospheric aerosols of a tropical region
Author(s): Goodman, J.; Snetsinger, K. G.; Ferry, G. V.; Farlow, N. H.; Lem, H. Y.; Hayes, D. M.
Abstract: To investigate the possibility that significant amounts of tropical tropospheric air may be convectively introduced into the stratosphere, aerosol samplings over Panama were made at various altitudes using a wire impactor ...
NASA Center: Ames Research Center
Publication Year: 1982
Added to NTRS: 2004-11-03
Accession Number: 82A35203; Document ID: 19820051668
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