Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles

Autores
Lopez, Maria Laura; Avila, Eldo Edgardo
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study reports measurements of deposition-mode ice-nucleating particle (INP) concentrations at ground level during the period July-December 2014 in Córdoba, Argentina. Ambient air was sampled into a cloud chamber where the INP concentration was measured at a temperature of -25°C and a 15% supersaturation over ice. Measurements were performed on days with different thermodynamic conditions, including rainy days. The effect of the relative humidity at ground level (RHamb) on the INP concentration was analyzed. The number of INPs activated varied from 1L-1 at RHamb of 25% to 30L-1 at RHamb of 90%. In general, a linear trend between the INP concentration and the RHamb was found, suggesting that this variability must be related to the effectiveness of the aerosols acting as INPs. From the backward trajectories analysis, it was found that the link between INP concentration and RHamb is independent of the origin of the air masses. The role of biological INPs and nucleation occurring in pores and cavities was discussed as a possible mechanism to explain the increase of the INP concentration during high ambient relative humidity events. This work provides valuable measurements of deposition-mode INP concentrations from the Southern Hemisphere where INP data are sparse so far.
Fil: Lopez, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Avila, Eldo Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Materia
ICE NUCLEI PARTICLES
DEPOSITION MODE
ICE SUPERSATURATION
HETEROGENEOUS FREEZING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/46936
Acceder
id CONICETDig_5470856de25a18c12b8b20e1769b5dc4
oai_identifier_str oai:ri.conicet.gov.ar:11336/46936
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particlesLopez, Maria LauraAvila, Eldo EdgardoICE NUCLEI PARTICLESDEPOSITION MODEICE SUPERSATURATIONHETEROGENEOUS FREEZINGhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This study reports measurements of deposition-mode ice-nucleating particle (INP) concentrations at ground level during the period July-December 2014 in Córdoba, Argentina. Ambient air was sampled into a cloud chamber where the INP concentration was measured at a temperature of -25°C and a 15% supersaturation over ice. Measurements were performed on days with different thermodynamic conditions, including rainy days. The effect of the relative humidity at ground level (RHamb) on the INP concentration was analyzed. The number of INPs activated varied from 1L-1 at RHamb of 25% to 30L-1 at RHamb of 90%. In general, a linear trend between the INP concentration and the RHamb was found, suggesting that this variability must be related to the effectiveness of the aerosols acting as INPs. From the backward trajectories analysis, it was found that the link between INP concentration and RHamb is independent of the origin of the air masses. The role of biological INPs and nucleation occurring in pores and cavities was discussed as a possible mechanism to explain the increase of the INP concentration during high ambient relative humidity events. This work provides valuable measurements of deposition-mode INP concentrations from the Southern Hemisphere where INP data are sparse so far.Fil: Lopez, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Avila, Eldo Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaCopernicus Publications2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/46936Lopez, Maria Laura; Avila, Eldo Edgardo; Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles; Copernicus Publications; Atmospheric Chemistry and Physics; 16; 2; 1-2016; 927-9321680-73161680-7324CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5194/acp-16-927-2016info:eu-repo/semantics/altIdentifier/url/https://www.atmos-chem-phys.net/16/927/2016/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:09:08Zoai:ri.conicet.gov.ar:11336/46936instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:09:08.32CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
title Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
spellingShingle Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
Lopez, Maria Laura
ICE NUCLEI PARTICLES
DEPOSITION MODE
ICE SUPERSATURATION
HETEROGENEOUS FREEZING
title_short Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
title_full Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
title_fullStr Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
title_full_unstemmed Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
title_sort Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles
dc.creator.none.fl_str_mv Lopez, Maria Laura
Avila, Eldo Edgardo
author Lopez, Maria Laura
author_facet Lopez, Maria Laura
Avila, Eldo Edgardo
author_role author
author2 Avila, Eldo Edgardo
author2_role author
dc.subject.none.fl_str_mv ICE NUCLEI PARTICLES
DEPOSITION MODE
ICE SUPERSATURATION
HETEROGENEOUS FREEZING
topic ICE NUCLEI PARTICLES
DEPOSITION MODE
ICE SUPERSATURATION
HETEROGENEOUS FREEZING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This study reports measurements of deposition-mode ice-nucleating particle (INP) concentrations at ground level during the period July-December 2014 in Córdoba, Argentina. Ambient air was sampled into a cloud chamber where the INP concentration was measured at a temperature of -25°C and a 15% supersaturation over ice. Measurements were performed on days with different thermodynamic conditions, including rainy days. The effect of the relative humidity at ground level (RHamb) on the INP concentration was analyzed. The number of INPs activated varied from 1L-1 at RHamb of 25% to 30L-1 at RHamb of 90%. In general, a linear trend between the INP concentration and the RHamb was found, suggesting that this variability must be related to the effectiveness of the aerosols acting as INPs. From the backward trajectories analysis, it was found that the link between INP concentration and RHamb is independent of the origin of the air masses. The role of biological INPs and nucleation occurring in pores and cavities was discussed as a possible mechanism to explain the increase of the INP concentration during high ambient relative humidity events. This work provides valuable measurements of deposition-mode INP concentrations from the Southern Hemisphere where INP data are sparse so far.
Fil: Lopez, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Avila, Eldo Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
description This study reports measurements of deposition-mode ice-nucleating particle (INP) concentrations at ground level during the period July-December 2014 in Córdoba, Argentina. Ambient air was sampled into a cloud chamber where the INP concentration was measured at a temperature of -25°C and a 15% supersaturation over ice. Measurements were performed on days with different thermodynamic conditions, including rainy days. The effect of the relative humidity at ground level (RHamb) on the INP concentration was analyzed. The number of INPs activated varied from 1L-1 at RHamb of 25% to 30L-1 at RHamb of 90%. In general, a linear trend between the INP concentration and the RHamb was found, suggesting that this variability must be related to the effectiveness of the aerosols acting as INPs. From the backward trajectories analysis, it was found that the link between INP concentration and RHamb is independent of the origin of the air masses. The role of biological INPs and nucleation occurring in pores and cavities was discussed as a possible mechanism to explain the increase of the INP concentration during high ambient relative humidity events. This work provides valuable measurements of deposition-mode INP concentrations from the Southern Hemisphere where INP data are sparse so far.
publishDate 2016
dc.date.none.fl_str_mv 2016-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/46936
Lopez, Maria Laura; Avila, Eldo Edgardo; Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles; Copernicus Publications; Atmospheric Chemistry and Physics; 16; 2; 1-2016; 927-932
1680-7316
1680-7324
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46936
identifier_str_mv Lopez, Maria Laura; Avila, Eldo Edgardo; Influence of the ambient humidity on the concentration of natural deposition-mode ice-nucleating particles; Copernicus Publications; Atmospheric Chemistry and Physics; 16; 2; 1-2016; 927-932
1680-7316
1680-7324
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-16-927-2016
info:eu-repo/semantics/altIdentifier/url/https://www.atmos-chem-phys.net/16/927/2016/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842980444367224832
score 12.993085

Publicaciones similares