A statistical study of Weinmannia pollen trajectories across the Andes

Autores
Perez, Claudio Fabian; Castañeda, Maria Elizabeth; Gassmann, María Isabel; Bianchi, Maria Martha
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Recent airborne pollen records data from Northern Patagonia (San Carlos de Bariloche, Argentina, Lat.41.1435 S, Long. 71.375W, 800m elevation) suggest thatpollen transport takes place from the west to the east slope of the Andes. However, the atmospheric characteristics responsible of this transport have not yet been studied. Theaim of this paper is to assess potential source areas and to describe the involved atmospheric mechanisms of the trans- Andean pollen transport. Methodology relies on the analysisof backward trajectories of air masses calculated with the HYSPLIT 4.9 regional model for particular days where airborne pollen of Weinmannia trichosperma Cav. was detectedeast of the Andes. This pollen type was selected because it is found regularly at localities in eastern Patagonia beyond its present-day distribution. Weinmannia?s substantial presenceduring early Holocene times would also benefit from better knowledge of its transport mechanisms. Correspondence between atmospheric trajectories and the position of sourceswas checked using GIS maps. Mode T, Principal Component Analysis (PCA) with Varimax rotation was used to identify the main spatial structure of geopotential height anomaliesproducing the calculated trajectories. Eighty-eight cases showed that the calculated directions of trajectories trended from the Northwest to Southwest passing over the Chilean regionofW. trichosperma distribution. PCs results showed two patterns of negative anomalies over southern Patagonia. The prevailing circulation pattern which drives airborne transportis the presence of a trough located south of 37 to 40 S with its axis over western Patagonia. The synoptic situations for two cases highly correlated with principal component scoreswere described.
Fil: Perez, Claudio Fabian. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Castañeda, Maria Elizabeth. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gassmann, María Isabel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bianchi, Maria Martha. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Materia
AIRBORNE POLLEN
HYSPLIT
POLLEN TRAJECTORIES
PATAGONIA
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:11336/247855
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A statistical study of Weinmannia pollen trajectories across the AndesPerez, Claudio FabianCastañeda, Maria ElizabethGassmann, María IsabelBianchi, Maria MarthaAIRBORNE POLLENHYSPLITPOLLEN TRAJECTORIESPATAGONIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Recent airborne pollen records data from Northern Patagonia (San Carlos de Bariloche, Argentina, Lat.41.1435 S, Long. 71.375W, 800m elevation) suggest thatpollen transport takes place from the west to the east slope of the Andes. However, the atmospheric characteristics responsible of this transport have not yet been studied. Theaim of this paper is to assess potential source areas and to describe the involved atmospheric mechanisms of the trans- Andean pollen transport. Methodology relies on the analysisof backward trajectories of air masses calculated with the HYSPLIT 4.9 regional model for particular days where airborne pollen of Weinmannia trichosperma Cav. was detectedeast of the Andes. This pollen type was selected because it is found regularly at localities in eastern Patagonia beyond its present-day distribution. Weinmannia?s substantial presenceduring early Holocene times would also benefit from better knowledge of its transport mechanisms. Correspondence between atmospheric trajectories and the position of sourceswas checked using GIS maps. Mode T, Principal Component Analysis (PCA) with Varimax rotation was used to identify the main spatial structure of geopotential height anomaliesproducing the calculated trajectories. Eighty-eight cases showed that the calculated directions of trajectories trended from the Northwest to Southwest passing over the Chilean regionofW. trichosperma distribution. PCs results showed two patterns of negative anomalies over southern Patagonia. The prevailing circulation pattern which drives airborne transportis the presence of a trough located south of 37 to 40 S with its axis over western Patagonia. The synoptic situations for two cases highly correlated with principal component scoreswere described.Fil: Perez, Claudio Fabian. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Castañeda, Maria Elizabeth. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gassmann, María Isabel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bianchi, Maria Martha. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaCopernicus Publications2009-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/247855Perez, Claudio Fabian; Castañeda, Maria Elizabeth; Gassmann, María Isabel; Bianchi, Maria Martha; A statistical study of Weinmannia pollen trajectories across the Andes; Copernicus Publications; Advances in Geosciences; 22; 12-2009; 79-841680-7340CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://adgeo.copernicus.org/articles/22/79/2009/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:06:57Zoai:ri.conicet.gov.ar:11336/247855instacron: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 13:06:58.147CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A statistical study of Weinmannia pollen trajectories across the Andes
title A statistical study of Weinmannia pollen trajectories across the Andes
spellingShingle A statistical study of Weinmannia pollen trajectories across the Andes
Perez, Claudio Fabian
AIRBORNE POLLEN
HYSPLIT
POLLEN TRAJECTORIES
PATAGONIA
title_short A statistical study of Weinmannia pollen trajectories across the Andes
title_full A statistical study of Weinmannia pollen trajectories across the Andes
title_fullStr A statistical study of Weinmannia pollen trajectories across the Andes
title_full_unstemmed A statistical study of Weinmannia pollen trajectories across the Andes
title_sort A statistical study of Weinmannia pollen trajectories across the Andes
dc.creator.none.fl_str_mv Perez, Claudio Fabian
Castañeda, Maria Elizabeth
Gassmann, María Isabel
Bianchi, Maria Martha
author Perez, Claudio Fabian
author_facet Perez, Claudio Fabian
Castañeda, Maria Elizabeth
Gassmann, María Isabel
Bianchi, Maria Martha
author_role author
author2 Castañeda, Maria Elizabeth
Gassmann, María Isabel
Bianchi, Maria Martha
author2_role author
author
author
dc.subject.none.fl_str_mv AIRBORNE POLLEN
HYSPLIT
POLLEN TRAJECTORIES
PATAGONIA
topic AIRBORNE POLLEN
HYSPLIT
POLLEN TRAJECTORIES
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recent airborne pollen records data from Northern Patagonia (San Carlos de Bariloche, Argentina, Lat.41.1435 S, Long. 71.375W, 800m elevation) suggest thatpollen transport takes place from the west to the east slope of the Andes. However, the atmospheric characteristics responsible of this transport have not yet been studied. Theaim of this paper is to assess potential source areas and to describe the involved atmospheric mechanisms of the trans- Andean pollen transport. Methodology relies on the analysisof backward trajectories of air masses calculated with the HYSPLIT 4.9 regional model for particular days where airborne pollen of Weinmannia trichosperma Cav. was detectedeast of the Andes. This pollen type was selected because it is found regularly at localities in eastern Patagonia beyond its present-day distribution. Weinmannia?s substantial presenceduring early Holocene times would also benefit from better knowledge of its transport mechanisms. Correspondence between atmospheric trajectories and the position of sourceswas checked using GIS maps. Mode T, Principal Component Analysis (PCA) with Varimax rotation was used to identify the main spatial structure of geopotential height anomaliesproducing the calculated trajectories. Eighty-eight cases showed that the calculated directions of trajectories trended from the Northwest to Southwest passing over the Chilean regionofW. trichosperma distribution. PCs results showed two patterns of negative anomalies over southern Patagonia. The prevailing circulation pattern which drives airborne transportis the presence of a trough located south of 37 to 40 S with its axis over western Patagonia. The synoptic situations for two cases highly correlated with principal component scoreswere described.
Fil: Perez, Claudio Fabian. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Castañeda, Maria Elizabeth. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gassmann, María Isabel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Bianchi, Maria Martha. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
description Recent airborne pollen records data from Northern Patagonia (San Carlos de Bariloche, Argentina, Lat.41.1435 S, Long. 71.375W, 800m elevation) suggest thatpollen transport takes place from the west to the east slope of the Andes. However, the atmospheric characteristics responsible of this transport have not yet been studied. Theaim of this paper is to assess potential source areas and to describe the involved atmospheric mechanisms of the trans- Andean pollen transport. Methodology relies on the analysisof backward trajectories of air masses calculated with the HYSPLIT 4.9 regional model for particular days where airborne pollen of Weinmannia trichosperma Cav. was detectedeast of the Andes. This pollen type was selected because it is found regularly at localities in eastern Patagonia beyond its present-day distribution. Weinmannia?s substantial presenceduring early Holocene times would also benefit from better knowledge of its transport mechanisms. Correspondence between atmospheric trajectories and the position of sourceswas checked using GIS maps. Mode T, Principal Component Analysis (PCA) with Varimax rotation was used to identify the main spatial structure of geopotential height anomaliesproducing the calculated trajectories. Eighty-eight cases showed that the calculated directions of trajectories trended from the Northwest to Southwest passing over the Chilean regionofW. trichosperma distribution. PCs results showed two patterns of negative anomalies over southern Patagonia. The prevailing circulation pattern which drives airborne transportis the presence of a trough located south of 37 to 40 S with its axis over western Patagonia. The synoptic situations for two cases highly correlated with principal component scoreswere described.
publishDate 2009
dc.date.none.fl_str_mv 2009-12
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/11336/247855
Perez, Claudio Fabian; Castañeda, Maria Elizabeth; Gassmann, María Isabel; Bianchi, Maria Martha; A statistical study of Weinmannia pollen trajectories across the Andes; Copernicus Publications; Advances in Geosciences; 22; 12-2009; 79-84
1680-7340
CONICET Digital
CONICET
url http://hdl.handle.net/11336/247855
identifier_str_mv Perez, Claudio Fabian; Castañeda, Maria Elizabeth; Gassmann, María Isabel; Bianchi, Maria Martha; A statistical study of Weinmannia pollen trajectories across the Andes; Copernicus Publications; Advances in Geosciences; 22; 12-2009; 79-84
1680-7340
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://adgeo.copernicus.org/articles/22/79/2009/
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
application/pdf
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
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score 12.993085

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