{"id":"https://openalex.org/W3205507466","doi":"https://doi.org/10.1109/igarss47720.2021.9554565","title":"Remote Sensing Based Analysis of Changes in Water Quality - Case Study at Quintero Bay (Chile)","display_name":"Remote Sensing Based Analysis of Changes in Water Quality - Case Study at Quintero Bay (Chile)","publication_year":2021,"publication_date":"2021-07-11","ids":{"openalex":"https://openalex.org/W3205507466","doi":"https://doi.org/10.1109/igarss47720.2021.9554565","mag":"3205507466"},"language":"en","primary_location":{"id":"doi:10.1109/igarss47720.2021.9554565","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9554565","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5071477774","display_name":"Katterine Salazar","orcid":"https://orcid.org/0000-0002-1518-1217"},"institutions":[{"id":"https://openalex.org/I172787465","display_name":"University of Concepci\u00f3n","ror":"https://ror.org/0460jpj73","country_code":"CL","type":"education","lineage":["https://openalex.org/I172787465"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"K. Salazar","raw_affiliation_strings":["University of Concepci\u00f3n, Los Angeles, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Concepci\u00f3n, Los Angeles, Chile","institution_ids":["https://openalex.org/I172787465"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047331055","display_name":"Guido Staub","orcid":null},"institutions":[{"id":"https://openalex.org/I172787465","display_name":"University of Concepci\u00f3n","ror":"https://ror.org/0460jpj73","country_code":"CL","type":"education","lineage":["https://openalex.org/I172787465"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"G. Staub","raw_affiliation_strings":["University of Concepci\u00f3n, Los Angeles, Chile"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Concepci\u00f3n, Los Angeles, Chile","institution_ids":["https://openalex.org/I172787465"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I172787465"],"apc_list":null,"apc_paid":null,"fwci":1.2547,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.78241514,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14249","display_name":"Water Quality Monitoring and Analysis","score":0.9538000226020813,"subfield":{"id":"https://openalex.org/subfields/2311","display_name":"Waste Management and Disposal"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T14249","display_name":"Water Quality Monitoring and Analysis","score":0.9538000226020813,"subfield":{"id":"https://openalex.org/subfields/2311","display_name":"Waste Management and Disposal"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12157","display_name":"Geochemistry and Geologic Mapping","score":0.9108999967575073,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/bay","display_name":"Bay","score":0.880744218826294},{"id":"https://openalex.org/keywords/contamination","display_name":"Contamination","score":0.7657167315483093},{"id":"https://openalex.org/keywords/suspended-solids","display_name":"Suspended solids","score":0.7603421211242676},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.7304547429084778},{"id":"https://openalex.org/keywords/total-suspended-solids","display_name":"Total suspended solids","score":0.6453641653060913},{"id":"https://openalex.org/keywords/sediment","display_name":"Sediment","score":0.6046948432922363},{"id":"https://openalex.org/keywords/water-quality","display_name":"Water quality","score":0.5832631587982178},{"id":"https://openalex.org/keywords/wastewater","display_name":"Wastewater","score":0.5543416142463684},{"id":"https://openalex.org/keywords/hydrology","display_name":"Hydrology (agriculture)","score":0.33720654249191284},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.33278945088386536},{"id":"https://openalex.org/keywords/environmental-engineering","display_name":"Environmental engineering","score":0.33152079582214355},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.14398372173309326},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.09714654088020325},{"id":"https://openalex.org/keywords/chemical-oxygen-demand","display_name":"Chemical oxygen demand","score":0.060549527406692505}],"concepts":[{"id":"https://openalex.org/C115880899","wikidata":"https://www.wikidata.org/wiki/Q1124247","display_name":"Bay","level":2,"score":0.880744218826294},{"id":"https://openalex.org/C112570922","wikidata":"https://www.wikidata.org/wiki/Q60528603","display_name":"Contamination","level":2,"score":0.7657167315483093},{"id":"https://openalex.org/C19570952","wikidata":"https://www.wikidata.org/wiki/Q905309","display_name":"Suspended solids","level":3,"score":0.7603421211242676},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7304547429084778},{"id":"https://openalex.org/C4891672","wikidata":"https://www.wikidata.org/wiki/Q3995966","display_name":"Total suspended solids","level":4,"score":0.6453641653060913},{"id":"https://openalex.org/C2816523","wikidata":"https://www.wikidata.org/wiki/Q180184","display_name":"Sediment","level":2,"score":0.6046948432922363},{"id":"https://openalex.org/C2780797713","wikidata":"https://www.wikidata.org/wiki/Q625376","display_name":"Water quality","level":2,"score":0.5832631587982178},{"id":"https://openalex.org/C94061648","wikidata":"https://www.wikidata.org/wiki/Q336191","display_name":"Wastewater","level":2,"score":0.5543416142463684},{"id":"https://openalex.org/C76886044","wikidata":"https://www.wikidata.org/wiki/Q2883300","display_name":"Hydrology (agriculture)","level":2,"score":0.33720654249191284},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.33278945088386536},{"id":"https://openalex.org/C87717796","wikidata":"https://www.wikidata.org/wiki/Q146326","display_name":"Environmental engineering","level":1,"score":0.33152079582214355},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.14398372173309326},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.09714654088020325},{"id":"https://openalex.org/C188287460","wikidata":"https://www.wikidata.org/wiki/Q555857","display_name":"Chemical oxygen demand","level":3,"score":0.060549527406692505},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss47720.2021.9554565","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9554565","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/6","score":0.5400000214576721,"display_name":"Clean water and sanitation"},{"id":"https://metadata.un.org/sdg/14","score":0.46000000834465027,"display_name":"Life below water"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1653721385","https://openalex.org/W2070369777","https://openalex.org/W2160032111","https://openalex.org/W2780316609","https://openalex.org/W3155812741"],"related_works":["https://openalex.org/W2184336031","https://openalex.org/W2625663581","https://openalex.org/W2044759759","https://openalex.org/W4226303195","https://openalex.org/W3133041111","https://openalex.org/W156410094","https://openalex.org/W2187803588","https://openalex.org/W2068131049","https://openalex.org/W3112900889","https://openalex.org/W1995804265"],"abstract_inverted_index":{"During":[0],"the":[1,9,25,29,33,64,85,93,102,146],"last":[2],"couple":[3],"of":[4,21,28,42,104],"years,":[5],"Quintero":[6,67],"Bay,":[7],"in":[8,32],"Valpara\u00edso":[10],"region,":[11],"has":[12],"been":[13],"affected":[14],"by":[15],"contamination":[16,69,141],"due":[17],"to":[18,91,100,145],"continuous":[19,132],"discharge":[20,134],"industrial":[22],"wastewater":[23,133],"into":[24],"waters.":[26],"One":[27],"contaminants":[30],"present":[31,65],"water":[34,56],"are":[35,39,58],"suspended":[36,105],"solids.":[37,106],"These":[38],"particles":[40],"composed":[41],"organic":[43],"and":[44,51,57,74,81,96,117,130],"inorganic":[45],"matter":[46],"that":[47,127],"may":[48],"contain":[49],"toxic":[50],"harmful":[52],"substances,":[53],"also":[54],"characterize":[55],"associated":[59,144],"with":[60,76],"its":[61],"colour.":[62],"In":[63],"study,":[66],"Bay":[68],"was":[70],"analysed":[71],"between":[72,128],"2014":[73,129],"2016":[75,131],"multispectral":[77],"Landsat":[78],"8":[79],"images":[80],"on-site":[82],"data":[83],"from":[84],"Coastal":[86],"Environment":[87],"Observation":[88],"Program":[89],"(POAL)":[90],"validate":[92],"spectral":[94,123],"indices":[95],"establish":[97],"regression":[98],"models":[99],"estimate":[101],"concentrations":[103],"Our":[107],"results,":[108],"based":[109],"on":[110],"NDSSI":[111],"(Normalized":[112,119],"Difference":[113],"Suspended":[114,120],"Sediment":[115],"Index)":[116],"NSMI":[118],"Material":[121],"Index))":[122],"index":[124],"calculation,":[125],"confirm":[126],"caused":[135],"all":[136],"year":[137],"long":[138],"contamination.":[139],"This":[140],"can":[142],"be":[143],"nearby":[147],"industry.":[148]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-08-18T07:49:30.821534","created_date":"2025-10-10T00:00:00"}