Photons without borders: quantifying light pollution transfer between territories

Detalhes bibliográficos
Autor(a) principal: Bará, Salvador
Data de Publicação: 2018
Outros Autores: Lima, Raul Cerveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/12280
Resumo: The light pollution levels experienced at any given site generally depend on a wide number of artificial light sources distributed throughout the surrounding territory. Since photons can travel long distances before being scattered by the atmosphere, any effective proposal for reducing local light pollution levels needs an accurate assessment of the relative weight of all intervening light sources, including those located tens or even hundreds of km away. In this paper we describe several ways of quantifying and visualizing these relative weights. Particular emphasis is made on the aggregate contribution of the municipalities, which are -in many regions of the world- the administrative bodies primarily responsible for the planning and maintenance of public outdoor lighting systems.
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spelling Photons without borders: quantifying light pollution transfer between territorieslight pollutionlight intrusionsky brightnessphotometryThe light pollution levels experienced at any given site generally depend on a wide number of artificial light sources distributed throughout the surrounding territory. Since photons can travel long distances before being scattered by the atmosphere, any effective proposal for reducing local light pollution levels needs an accurate assessment of the relative weight of all intervening light sources, including those located tens or even hundreds of km away. In this paper we describe several ways of quantifying and visualizing these relative weights. Particular emphasis is made on the aggregate contribution of the municipalities, which are -in many regions of the world- the administrative bodies primarily responsible for the planning and maintenance of public outdoor lighting systems.Repositório Científico do Instituto Politécnico do PortoBará, SalvadorLima, Raul Cerveira2018-11-26T10:44:33Z2018-09-142018-09-14T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/12280eng10.26607/ijsl.v20i2.87info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T12:54:19Zoai:recipp.ipp.pt:10400.22/12280Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:32:40.655447Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Photons without borders: quantifying light pollution transfer between territories
title Photons without borders: quantifying light pollution transfer between territories
spellingShingle Photons without borders: quantifying light pollution transfer between territories
Bará, Salvador
light pollution
light intrusion
sky brightness
photometry
title_short Photons without borders: quantifying light pollution transfer between territories
title_full Photons without borders: quantifying light pollution transfer between territories
title_fullStr Photons without borders: quantifying light pollution transfer between territories
title_full_unstemmed Photons without borders: quantifying light pollution transfer between territories
title_sort Photons without borders: quantifying light pollution transfer between territories
author Bará, Salvador
author_facet Bará, Salvador
Lima, Raul Cerveira
author_role author
author2 Lima, Raul Cerveira
author2_role author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Bará, Salvador
Lima, Raul Cerveira
dc.subject.por.fl_str_mv light pollution
light intrusion
sky brightness
photometry
topic light pollution
light intrusion
sky brightness
photometry
description The light pollution levels experienced at any given site generally depend on a wide number of artificial light sources distributed throughout the surrounding territory. Since photons can travel long distances before being scattered by the atmosphere, any effective proposal for reducing local light pollution levels needs an accurate assessment of the relative weight of all intervening light sources, including those located tens or even hundreds of km away. In this paper we describe several ways of quantifying and visualizing these relative weights. Particular emphasis is made on the aggregate contribution of the municipalities, which are -in many regions of the world- the administrative bodies primarily responsible for the planning and maintenance of public outdoor lighting systems.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-26T10:44:33Z
2018-09-14
2018-09-14T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/12280
url http://hdl.handle.net/10400.22/12280
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.26607/ijsl.v20i2.87
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