dor_id: 4132831

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

561.#.#.u: https://www.geofisica.unam.mx/

650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

590.#.#.b: Concentrador

883.#.#.u: https://revistas.unam.mx/catalogo/

883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

883.#.#.1: https://www.publicaciones.unam.mx/

883.#.#.q: Dirección General de Publicaciones y Fomento Editorial

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1140/1062

100.1.#.a: Hofmann, D.J.; Rosen, J. M.

524.#.#.a: Hofmann, D.J., et al. (1984). Measurement of the sulfuric acid weight percent in the stratospheric aerosol from the El Chichón eruption.. Geofísica Internacional; Vol. 23 Núm. 3: Julio 1, 1984; 309-320. Recuperado de https://repositorio.unam.mx/contenidos/4132831

245.1.0.a: Measurement of the sulfuric acid weight percent in the stratospheric aerosol from the El Chichón eruption.

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 1984

264.#.1.c: 1984-07-01

653.#.#.a: Ácido sulfúrico; Medición; Aerosol estratosférico; Erupciones volcánicas; Volcán El Chichón; Sulfuric acid; Measurement; Aerosol stratospheric; Erupciones volcánicas; El Chichon Volcano

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1140

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1140

041.#.7.h: spa

520.3.#.a: During a slow balloon descent from 30 km over southern Texas on October 23, 1982, the intake tube to a particle counter capable of measuring the concentrations of r ≥0.15 µm and r ≥0.25 µm aerosol was heated to 150°C and allowed to cool periodically to determine aerosol volatility. At the time of the measurement, the El Chichón injected aerosol was characterized by two main layers centered at about 17 and 24 km. The upper layer contained the larger particles (main mode radius of ~0.3 µm as compared to ~0.1 µm in the lower layer). The aerosol, when heated, indicated a  concentration of ~ 1 % of the ambient values suggesting that most of the particles were highly volatile or had a highly volatile sheath with possibly nonvolatile cores of radii < 0.15 µm. The vertical distribution of the remaining nonvolatile component could be resolved. By observing the temperature at which the bulk of the aerosol was removed (vaporization point) at several altitudes (pressures), a vapor pressure curve was constructed. The results indicate that the volatile material in the upper layer consisted of ~80% H2SO4 - 20% H2O (by weight) while the lower layer consisted of a 60 - 65% acid aerosol. This difference is due mainly to the higher temperatures in the upper layer. The measured sulfuric acid weight percentages are in good agreement with theoretical values as calculated for observed temperatures and typical water vapor concentrations.doi: https://doi.org/10.22201/igeof.00167169p.1984.23.3.1153

773.1.#.t: Geofísica Internacional; Vol. 23 Núm. 3: Julio 1, 1984; 309-320

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169

310.#.#.a: Trimestral

300.#.#.a: Páginas: 309-320

264.#.1.b: Instituto de Geofísica, UNAM

doi: https://doi.org/10.22201/igeof.00167169p.1984.23.3.1153

handle: 0084003cd9b3ce0c

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2008-06-26 16:42:06.0

file_modification_date: 2022-05-29 05:11:12.0

file_creator: D.J. Hofmann

file_name: 047715c6fe6b77cb5933d2dba391f4574c1fe41aebb4de9dd1170bdb0a0e9628.pdf

file_pages_number: 12

file_format_version: application/pdf; version=1.6

file_size: 395701

245.1.0.b: Measurement of the sulfuric acid weight percent in the stratospheric aerosol from the El Chichón eruption.

last_modified: 2023-06-20 16:00:00

license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es

license_type: by-nc-sa

No entro en nada

No entro en nada 2

Artículo

Measurement of the sulfuric acid weight percent in the stratospheric aerosol from the El Chichón eruption.

Hofmann, D.J.; Rosen, J. M.

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Hofmann, D.J., et al. (1984). Measurement of the sulfuric acid weight percent in the stratospheric aerosol from the El Chichón eruption.. Geofísica Internacional; Vol. 23 Núm. 3: Julio 1, 1984; 309-320. Recuperado de https://repositorio.unam.mx/contenidos/4132831

Descripción del recurso

Autor(es)
Hofmann, D.J.; Rosen, J. M.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Measurement of the sulfuric acid weight percent in the stratospheric aerosol from the El Chichón eruption.
Fecha
1984-07-01
Resumen
During a slow balloon descent from 30 km over southern Texas on October 23, 1982, the intake tube to a particle counter capable of measuring the concentrations of r ≥0.15 µm and r ≥0.25 µm aerosol was heated to 150°C and allowed to cool periodically to determine aerosol volatility. At the time of the measurement, the El Chichón injected aerosol was characterized by two main layers centered at about 17 and 24 km. The upper layer contained the larger particles (main mode radius of ~0.3 µm as compared to ~0.1 µm in the lower layer). The aerosol, when heated, indicated a  concentration of ~ 1 % of the ambient values suggesting that most of the particles were highly volatile or had a highly volatile sheath with possibly nonvolatile cores of radii < 0.15 µm. The vertical distribution of the remaining nonvolatile component could be resolved. By observing the temperature at which the bulk of the aerosol was removed (vaporization point) at several altitudes (pressures), a vapor pressure curve was constructed. The results indicate that the volatile material in the upper layer consisted of ~80% H2SO4 - 20% H2O (by weight) while the lower layer consisted of a 60 - 65% acid aerosol. This difference is due mainly to the higher temperatures in the upper layer. The measured sulfuric acid weight percentages are in good agreement with theoretical values as calculated for observed temperatures and typical water vapor concentrations.doi: https://doi.org/10.22201/igeof.00167169p.1984.23.3.1153
Tema
Ácido sulfúrico; Medición; Aerosol estratosférico; Erupciones volcánicas; Volcán El Chichón; Sulfuric acid; Measurement; Aerosol stratospheric; Erupciones volcánicas; El Chichon Volcano
Idioma
spa
ISSN
ISSN-L: 2954-436X; ISSN impreso: 0016-7169

Enlaces