Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina
- Autores
- Ratto, Gustavo; Maronna, Ricardo Antonio; Repossi, Patricia; Videla, Fabián Alfredo; Nico, Andrés; Reyna Almandos, Jorge Guillermo
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- An hourly wind analysis for the populated area of La Plata city (with high industrial, power station and vehicular activi-ties) is presented and discussed. Euclidean distance and minimum covariance determinant (a robust correlation coeffi-cient) are employed, as similarity approaches, in order to compare observed wind direction frequency patterns at two monitoring sites during 1998-2003. A preliminary assessment of two sectors, namely Sector 1 (NNW-N-NNE-NE) and Sector 2 (ENE-E-ESE), relevant for the transport of industrial air pollutants towards population exposed, is discussed taking variances into account and employing a locally weighted smoothing approach (LOESS). Both similarity ap-proaches allowed gain insight of wind patterns. The distance approach showed good similarity between sites while the correlation approach showed an uneven picture depending on the wind direction. Most of the differences are explained in terms of the sea-land breeze effect but also differences in terrain roughness and data quality are taken into account. Winds from sectors 1 or 2 (analyzed during 1998-2009) may occur more than 50% of the time, most of the differences regarding the influence of the day and the season on these sectors are attributable to sea-land breeze phenomena. The LOESS proved to be appropriate to analyze the stability with time of both sectors and to discard possible remaining patterns; results are in accordance with studies that assess the interannual variability for different variables in La Plata river area. The robust correlation coefficient revealed, as an example, the linear character of dependence between winds from sector 2 and sulfur dioxide concentrations. Wind velocities and calms are also discussed.
Centro de Investigaciones Ópticas - Materia
-
Física
La Plata
Local Smoothing
Minimum Covariance Determinant
Robust Correlation
Similarity
Wind Analysis - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/119271
Ver los metadatos del registro completo
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Analysis of Winds Affecting Air Pollutant Transport at La Plata, ArgentinaRatto, GustavoMaronna, Ricardo AntonioRepossi, PatriciaVidela, Fabián AlfredoNico, AndrésReyna Almandos, Jorge GuillermoFísicaLa PlataLocal SmoothingMinimum Covariance DeterminantRobust CorrelationSimilarityWind AnalysisAn hourly wind analysis for the populated area of La Plata city (with high industrial, power station and vehicular activi-ties) is presented and discussed. Euclidean distance and minimum covariance determinant (a robust correlation coeffi-cient) are employed, as similarity approaches, in order to compare observed wind direction frequency patterns at two monitoring sites during 1998-2003. A preliminary assessment of two sectors, namely Sector 1 (NNW-N-NNE-NE) and Sector 2 (ENE-E-ESE), relevant for the transport of industrial air pollutants towards population exposed, is discussed taking variances into account and employing a locally weighted smoothing approach (LOESS). Both similarity ap-proaches allowed gain insight of wind patterns. The distance approach showed good similarity between sites while the correlation approach showed an uneven picture depending on the wind direction. Most of the differences are explained in terms of the sea-land breeze effect but also differences in terrain roughness and data quality are taken into account. Winds from sectors 1 or 2 (analyzed during 1998-2009) may occur more than 50% of the time, most of the differences regarding the influence of the day and the season on these sectors are attributable to sea-land breeze phenomena. The LOESS proved to be appropriate to analyze the stability with time of both sectors and to discard possible remaining patterns; results are in accordance with studies that assess the interannual variability for different variables in La Plata river area. The robust correlation coefficient revealed, as an example, the linear character of dependence between winds from sector 2 and sulfur dioxide concentrations. Wind velocities and calms are also discussed.Centro de Investigaciones Ópticas2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf60-75http://sedici.unlp.edu.ar/handle/10915/119271enginfo:eu-repo/semantics/altIdentifier/issn/2160-0414info:eu-repo/semantics/altIdentifier/issn/2160-0422info:eu-repo/semantics/altIdentifier/doi/10.4236/acs.2012.21008info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:09Zoai:sedici.unlp.edu.ar:10915/119271Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:09.765SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
title |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
spellingShingle |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina Ratto, Gustavo Física La Plata Local Smoothing Minimum Covariance Determinant Robust Correlation Similarity Wind Analysis |
title_short |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
title_full |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
title_fullStr |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
title_full_unstemmed |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
title_sort |
Analysis of Winds Affecting Air Pollutant Transport at La Plata, Argentina |
dc.creator.none.fl_str_mv |
Ratto, Gustavo Maronna, Ricardo Antonio Repossi, Patricia Videla, Fabián Alfredo Nico, Andrés Reyna Almandos, Jorge Guillermo |
author |
Ratto, Gustavo |
author_facet |
Ratto, Gustavo Maronna, Ricardo Antonio Repossi, Patricia Videla, Fabián Alfredo Nico, Andrés Reyna Almandos, Jorge Guillermo |
author_role |
author |
author2 |
Maronna, Ricardo Antonio Repossi, Patricia Videla, Fabián Alfredo Nico, Andrés Reyna Almandos, Jorge Guillermo |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Física La Plata Local Smoothing Minimum Covariance Determinant Robust Correlation Similarity Wind Analysis |
topic |
Física La Plata Local Smoothing Minimum Covariance Determinant Robust Correlation Similarity Wind Analysis |
dc.description.none.fl_txt_mv |
An hourly wind analysis for the populated area of La Plata city (with high industrial, power station and vehicular activi-ties) is presented and discussed. Euclidean distance and minimum covariance determinant (a robust correlation coeffi-cient) are employed, as similarity approaches, in order to compare observed wind direction frequency patterns at two monitoring sites during 1998-2003. A preliminary assessment of two sectors, namely Sector 1 (NNW-N-NNE-NE) and Sector 2 (ENE-E-ESE), relevant for the transport of industrial air pollutants towards population exposed, is discussed taking variances into account and employing a locally weighted smoothing approach (LOESS). Both similarity ap-proaches allowed gain insight of wind patterns. The distance approach showed good similarity between sites while the correlation approach showed an uneven picture depending on the wind direction. Most of the differences are explained in terms of the sea-land breeze effect but also differences in terrain roughness and data quality are taken into account. Winds from sectors 1 or 2 (analyzed during 1998-2009) may occur more than 50% of the time, most of the differences regarding the influence of the day and the season on these sectors are attributable to sea-land breeze phenomena. The LOESS proved to be appropriate to analyze the stability with time of both sectors and to discard possible remaining patterns; results are in accordance with studies that assess the interannual variability for different variables in La Plata river area. The robust correlation coefficient revealed, as an example, the linear character of dependence between winds from sector 2 and sulfur dioxide concentrations. Wind velocities and calms are also discussed. Centro de Investigaciones Ópticas |
description |
An hourly wind analysis for the populated area of La Plata city (with high industrial, power station and vehicular activi-ties) is presented and discussed. Euclidean distance and minimum covariance determinant (a robust correlation coeffi-cient) are employed, as similarity approaches, in order to compare observed wind direction frequency patterns at two monitoring sites during 1998-2003. A preliminary assessment of two sectors, namely Sector 1 (NNW-N-NNE-NE) and Sector 2 (ENE-E-ESE), relevant for the transport of industrial air pollutants towards population exposed, is discussed taking variances into account and employing a locally weighted smoothing approach (LOESS). Both similarity ap-proaches allowed gain insight of wind patterns. The distance approach showed good similarity between sites while the correlation approach showed an uneven picture depending on the wind direction. Most of the differences are explained in terms of the sea-land breeze effect but also differences in terrain roughness and data quality are taken into account. Winds from sectors 1 or 2 (analyzed during 1998-2009) may occur more than 50% of the time, most of the differences regarding the influence of the day and the season on these sectors are attributable to sea-land breeze phenomena. The LOESS proved to be appropriate to analyze the stability with time of both sectors and to discard possible remaining patterns; results are in accordance with studies that assess the interannual variability for different variables in La Plata river area. The robust correlation coefficient revealed, as an example, the linear character of dependence between winds from sector 2 and sulfur dioxide concentrations. Wind velocities and calms are also discussed. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/119271 |
url |
http://sedici.unlp.edu.ar/handle/10915/119271 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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