{"id":"https://openalex.org/W4387828825","doi":"https://doi.org/10.1109/igarss52108.2023.10283198","title":"Using High-Resolution Nighttime Remote Sensing Data to Identify Light Sources in Hong Kong","display_name":"Using High-Resolution Nighttime Remote Sensing Data to Identify Light Sources in Hong Kong","publication_year":2023,"publication_date":"2023-07-16","ids":{"openalex":"https://openalex.org/W4387828825","doi":"https://doi.org/10.1109/igarss52108.2023.10283198"},"language":"en","primary_location":{"id":"doi:10.1109/igarss52108.2023.10283198","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss52108.2023.10283198","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium","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/A5067542105","display_name":"Shengjie Liu","orcid":"https://orcid.org/0000-0003-0253-7410"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]},{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK","US"],"is_corresponding":false,"raw_author_name":"Shengjie Liu","raw_affiliation_strings":["The University of Hong Kong,Department of Physics,Hong Kong SAR","Department of Physics, The University of Hong Kong, Hong Kong SAR","Spatial Sciences Institute, University of Southern California, Los Angeles, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Physics,Hong Kong SAR","institution_ids":["https://openalex.org/I177725633","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Physics, The University of Hong Kong, Hong Kong SAR","institution_ids":["https://openalex.org/I177725633","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Spatial Sciences Institute, University of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101519425","display_name":"Chu Wing So","orcid":"https://orcid.org/0000-0001-7239-6516"},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chu Wing So","raw_affiliation_strings":["The University of Hong Kong,Department of Physics,Hong Kong SAR","Department of Physics, The University of Hong Kong, Hong Kong SAR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Physics,Hong Kong SAR","institution_ids":["https://openalex.org/I177725633","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Physics, The University of Hong Kong, Hong Kong SAR","institution_ids":["https://openalex.org/I177725633","https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054327179","display_name":"Hung Chak Ho","orcid":"https://orcid.org/0000-0002-6505-3504"},"institutions":[{"id":"https://openalex.org/I168719708","display_name":"City University of Hong Kong","ror":"https://ror.org/03q8dnn23","country_code":"HK","type":"education","lineage":["https://openalex.org/I168719708"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Hung Chak Ho","raw_affiliation_strings":["City University of Hong Kong,Department of Public and International Affairs,Hong Kong SAR","Department of Public and International Affairs, City University of Hong Kong, Hong Kong SAR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"City University of Hong Kong,Department of Public and International Affairs,Hong Kong SAR","institution_ids":["https://openalex.org/I168719708"]},{"raw_affiliation_string":"Department of Public and International Affairs, City University of Hong Kong, Hong Kong SAR","institution_ids":["https://openalex.org/I168719708"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010856973","display_name":"Qian Shi","orcid":"https://orcid.org/0000-0002-1276-0352"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qian Shi","raw_affiliation_strings":["Sun Yat-sen University,School of Geography and Planning,Guangzhou,China,510275"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sun Yat-sen University,School of Geography and Planning,Guangzhou,China,510275","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110452555","display_name":"C. S. J. Pun","orcid":"https://orcid.org/0000-0002-6821-4203"},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]},{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chun Shing Jason Pun","raw_affiliation_strings":["The University of Hong Kong,Department of Physics,Hong Kong SAR","Department of Physics, The University of Hong Kong, Hong Kong SAR"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Physics,Hong Kong SAR","institution_ids":["https://openalex.org/I177725633","https://openalex.org/I889458895"]},{"raw_affiliation_string":"Department of Physics, The University of Hong Kong, Hong Kong SAR","institution_ids":["https://openalex.org/I177725633","https://openalex.org/I889458895"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.8226,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.93629283,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"2827","last_page":"2830"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11963","display_name":"Impact of Light on Environment and Health","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"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/T11963","display_name":"Impact of Light on Environment and Health","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"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/T10298","display_name":"Urban Transport and Accessibility","score":0.973800003528595,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13850","display_name":"Night-time city culture","score":0.9358000159263611,"subfield":{"id":"https://openalex.org/subfields/3322","display_name":"Urban Studies"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5769218802452087},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.48000210523605347},{"id":"https://openalex.org/keywords/light-pollution","display_name":"Light pollution","score":0.45842209458351135},{"id":"https://openalex.org/keywords/high-resolution","display_name":"High resolution","score":0.44744616746902466},{"id":"https://openalex.org/keywords/artificial-light","display_name":"Artificial light","score":0.4376157820224762},{"id":"https://openalex.org/keywords/metre","display_name":"Metre","score":0.41219785809516907},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.4065057635307312},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.3747982978820801},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3341969847679138}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5769218802452087},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.48000210523605347},{"id":"https://openalex.org/C161421721","wikidata":"https://www.wikidata.org/wiki/Q180644","display_name":"Light pollution","level":2,"score":0.45842209458351135},{"id":"https://openalex.org/C3020199158","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"High resolution","level":2,"score":0.44744616746902466},{"id":"https://openalex.org/C2992067456","wikidata":"https://www.wikidata.org/wiki/Q210064","display_name":"Artificial light","level":3,"score":0.4376157820224762},{"id":"https://openalex.org/C151011524","wikidata":"https://www.wikidata.org/wiki/Q11573","display_name":"Metre","level":2,"score":0.41219785809516907},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.4065057635307312},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3747982978820801},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3341969847679138},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C36365805","wikidata":"https://www.wikidata.org/wiki/Q194411","display_name":"Illuminance","level":2,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss52108.2023.10283198","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss52108.2023.10283198","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8600000143051147,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320321019","display_name":"University Grants Committee","ror":"https://ror.org/00djwmt25"},{"id":"https://openalex.org/F4320322170","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W2162391406","https://openalex.org/W2166315923","https://openalex.org/W2173279358","https://openalex.org/W2739698864","https://openalex.org/W2764236610","https://openalex.org/W2810433150","https://openalex.org/W2967908754","https://openalex.org/W3207048179","https://openalex.org/W4223953409","https://openalex.org/W4282822198"],"related_works":["https://openalex.org/W3084473810","https://openalex.org/W42898480","https://openalex.org/W4313270975","https://openalex.org/W4380758973","https://openalex.org/W3170962250","https://openalex.org/W2994642265","https://openalex.org/W2375937175","https://openalex.org/W3108247279","https://openalex.org/W2614077057","https://openalex.org/W2792195816"],"abstract_inverted_index":{"Although":[0],"artificial":[1],"light":[2,41,74],"at":[3],"night":[4],"(ALAN)":[5],"is":[6],"essential":[7],"for":[8,94],"nighttime":[9,31],"activities,":[10],"any":[11],"unregulated":[12,126],"and":[13,67],"abusive":[14],"usage":[15,127],"can":[16],"lead":[17],"to":[18,39,131],"severe":[19],"degradation":[20],"in":[21,43],"quality":[22],"of":[23,35,47,73,81,125,128],"life.":[24],"In":[25],"this":[26],"study,":[27],"we":[28],"used":[29],"high-resolution":[30],"remote":[32],"sensing":[33],"data":[34],"1-meter":[36],"spatial":[37],"resolution":[38],"investigate":[40],"sources":[42,57],"an":[44,97],"urban":[45],"area":[46],"Hong":[48],"Kong":[49],"with":[50,103,106],"one":[51,117],"million":[52],"residents.":[53],"We":[54,69,114],"classified":[55],"ALAN":[56],"into":[58],"three":[59],"categories":[60],"based":[61],"on":[62],"their":[63],"origins:":[64],"Building,":[65,77],"Park,":[66],"Street.":[68],"found":[70],"that":[71],"42%":[72],"was":[75,83,101],"from":[76,91],"a":[78],"large":[79],"fraction":[80],"which":[82,120],"unnecessary":[84],"decorative":[85],"lighting":[86,109],"such":[87],"as":[88],"signboards.":[89],"Lighting":[90],"Street":[92],"accounted":[93],"41%,":[95],"whereas":[96],"unexpectedly":[98],"high":[99],"proportion":[100],"associated":[102],"Park":[104],"(17%),":[105],"sport":[107],"facilities-related":[108],"being":[110],"the":[111,122,132],"dominant":[112],"contributor.":[113],"also":[115],"detailed":[116],"case":[118],"study":[119],"shows":[121],"disruptive":[123],"effects":[124],"LED":[129],"signboards":[130],"neighboring":[133],"residential":[134],"apartments.":[135]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
