The goal of the current study is to better understand the role of storm dynamics on stream water chemical variability in a highly polluted urban-fringe watershed. The study was conducted in the upper reach of the Arroyo Seco watershed located on the eastern edge of the densely urbanized Los Angeles...

Full description

Autores:
Tipo de recurso:
Fecha de publicación:
2014
Institución:
Universidad de Medellín
Repositorio:
Repositorio UDEM
Idioma:
eng
OAI Identifier:
oai:repository.udem.edu.co:11407/1404
Acceso en línea:
http://hdl.handle.net/11407/1404
Palabra clave:
Atmospheric deposition
Chemistry
Nitrate
Riparian
Stormwater
Urban-fringe watershed
Rights
restrictedAccess
License
http://purl.org/coar/access_right/c_16ec
id REPOUDEM2_447ea0a25f95fa994f976de0a41e724c
oai_identifier_str oai:repository.udem.edu.co:11407/1404
network_acronym_str REPOUDEM2
network_name_str Repositorio UDEM
repository_id_str
spelling 2015-10-09T13:18:26Z2015-10-09T13:18:26Z201418666280http://hdl.handle.net/11407/140410.1007/s12665-013-3011-xThe goal of the current study is to better understand the role of storm dynamics on stream water chemical variability in a highly polluted urban-fringe watershed. The study was conducted in the upper reach of the Arroyo Seco watershed located on the eastern edge of the densely urbanized Los Angeles basin in California. During the 2008-2009 study period, high-frequency stream water observations of chloride, fluoride, sulfate, and nitrate were monitored through a series of storm events and were compared to pre- and post-winter storm season geochemical soil profiles. Of the four solutes measured, nitrate demonstrated hydrologically enhanced behavior. Chloride, fluoride, and sulfate exhibited enhanced behavior initially (first flush), but transitioned to dilution behavior as the season progressed. Soil chemistry analyses in the riparian zone confirmed the abundance of nitrate on the soil surface, serving as a source for stream water nitrate. Observations and analyses collectively suggest that the chemical variability observed during the storms is dependent not only on discharge, but also on the magnitude and intensity of rainfall, the length of the antecedent dry period, and riparian soil composition. A further understanding of these factors will ultimately improve geochemical models for prediction of downstream chemical loads from regional urban-fringe watersheds. © 2013 Springer-Verlag Berlin Heidelberg.engSpringer Verlaghttp://link.springer.com/article/10.1007%2Fs12665-013-3011-x#page-1Environmental Earth Sciences, agosto de 2014, volume 72, isuue 3, pp 879-889ScopusArticleinfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/restrictedAccesshttp://purl.org/coar/access_right/c_16ecDepartment of Civil and Environmental Engineering, University of California, Los Angeles, CA, United StatesDepartment of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, 80401, United StatesUniversidad de Medellin, Medellín, ColombiaGeosyntec Consultants, Los Angeles, CA, United StatesKinoshita A.M.Hogue T.S.Barco J.Wessel C.Atmospheric depositionChemistryNitrateRiparianStormwaterUrban-fringe watershedChemical flushing from an urban-fringe watershed: Hydrologic and riparian soil dynamics11407/1404oai:repository.udem.edu.co:11407/14042020-05-27 15:43:48.726Repositorio Institucional Universidad de Medellinrepositorio@udem.edu.co
dc.title.english.eng.fl_str_mv Chemical flushing from an urban-fringe watershed: Hydrologic and riparian soil dynamics
dc.contributor.affiliation.spa.fl_str_mv Department of Civil and Environmental Engineering, University of California, Los Angeles, CA, United States
Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, 80401, United States
Universidad de Medellin, Medellín, Colombia
Geosyntec Consultants, Los Angeles, CA, United States
dc.subject.keyword.eng.fl_str_mv Atmospheric deposition
Chemistry
Nitrate
Riparian
Stormwater
Urban-fringe watershed
topic Atmospheric deposition
Chemistry
Nitrate
Riparian
Stormwater
Urban-fringe watershed
spellingShingle Atmospheric deposition
Chemistry
Nitrate
Riparian
Stormwater
Urban-fringe watershed
description The goal of the current study is to better understand the role of storm dynamics on stream water chemical variability in a highly polluted urban-fringe watershed. The study was conducted in the upper reach of the Arroyo Seco watershed located on the eastern edge of the densely urbanized Los Angeles basin in California. During the 2008-2009 study period, high-frequency stream water observations of chloride, fluoride, sulfate, and nitrate were monitored through a series of storm events and were compared to pre- and post-winter storm season geochemical soil profiles. Of the four solutes measured, nitrate demonstrated hydrologically enhanced behavior. Chloride, fluoride, and sulfate exhibited enhanced behavior initially (first flush), but transitioned to dilution behavior as the season progressed. Soil chemistry analyses in the riparian zone confirmed the abundance of nitrate on the soil surface, serving as a source for stream water nitrate. Observations and analyses collectively suggest that the chemical variability observed during the storms is dependent not only on discharge, but also on the magnitude and intensity of rainfall, the length of the antecedent dry period, and riparian soil composition. A further understanding of these factors will ultimately improve geochemical models for prediction of downstream chemical loads from regional urban-fringe watersheds. © 2013 Springer-Verlag Berlin Heidelberg.
publishDate 2014
dc.date.created.none.fl_str_mv 2014
dc.date.accessioned.none.fl_str_mv 2015-10-09T13:18:26Z
dc.date.available.none.fl_str_mv 2015-10-09T13:18:26Z
dc.type.eng.fl_str_mv Article
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.identifier.issn.none.fl_str_mv 18666280
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/11407/1404
dc.identifier.doi.none.fl_str_mv 10.1007/s12665-013-3011-x
identifier_str_mv 18666280
10.1007/s12665-013-3011-x
url http://hdl.handle.net/11407/1404
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.isversionof.spa.fl_str_mv http://link.springer.com/article/10.1007%2Fs12665-013-3011-x#page-1
dc.relation.ispartofen.eng.fl_str_mv Environmental Earth Sciences, agosto de 2014, volume 72, isuue 3, pp 879-889
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.rights.accessrights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://purl.org/coar/access_right/c_16ec
dc.publisher.spa.fl_str_mv Springer Verlag
dc.source.spa.fl_str_mv Scopus
institution Universidad de Medellín
repository.name.fl_str_mv Repositorio Institucional Universidad de Medellin
repository.mail.fl_str_mv repositorio@udem.edu.co
_version_ 1814159103122997248