{"id":"https://openalex.org/W2960574328","doi":"https://doi.org/10.1109/tgrs.2019.2923754","title":"Evaluation of Red-Peak Algorithms for Chlorophyll Measurement in the Pearl River Estuary","display_name":"Evaluation of Red-Peak Algorithms for Chlorophyll Measurement in the Pearl River Estuary","publication_year":2019,"publication_date":"2019-07-12","ids":{"openalex":"https://openalex.org/W2960574328","doi":"https://doi.org/10.1109/tgrs.2019.2923754","mag":"2960574328"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2019.2923754","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2019.2923754","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"},"type":"article","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/A5033725352","display_name":"Fenfen Liu","orcid":"https://orcid.org/0000-0002-9031-7620"},"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":true,"raw_author_name":"Fenfen Liu","raw_affiliation_strings":["School of Marine Sciences, Sun Yat-sen University, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Marine Sciences, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103255020","display_name":"Shilin Tang","orcid":"https://orcid.org/0000-0002-0581-1203"},"institutions":[{"id":"https://openalex.org/I4210101167","display_name":"Institute of Oceanology","ror":"https://ror.org/018yw5541","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210101167"]},{"id":"https://openalex.org/I4210103685","display_name":"South China Sea Institute Of Oceanology","ror":"https://ror.org/0192yj155","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210103685"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shilin Tang","raw_affiliation_strings":["State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China","institution_ids":["https://openalex.org/I4210103685","https://openalex.org/I4210101167"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5033725352"],"corresponding_institution_ids":["https://openalex.org/I157773358"],"apc_list":null,"apc_paid":null,"fwci":0.7687,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.73292029,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"57","issue":"11","first_page":"8928","last_page":"8936"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10032","display_name":"Marine and coastal ecosystems","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10032","display_name":"Marine and coastal ecosystems","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14249","display_name":"Water Quality Monitoring and Analysis","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/2311","display_name":"Industrial and Manufacturing Engineering"},"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/T12697","display_name":"Water Quality Monitoring Technologies","score":0.9437000155448914,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.8070484399795532},{"id":"https://openalex.org/keywords/estuary","display_name":"Estuary","score":0.6396857500076294},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5518348217010498},{"id":"https://openalex.org/keywords/pearl","display_name":"Pearl","score":0.5223637223243713},{"id":"https://openalex.org/keywords/chlorophyll-a","display_name":"Chlorophyll a","score":0.46541571617126465},{"id":"https://openalex.org/keywords/phytoplankton","display_name":"Phytoplankton","score":0.45917442440986633},{"id":"https://openalex.org/keywords/ocean-color","display_name":"Ocean color","score":0.45461851358413696},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.42880862951278687},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.4023613929748535},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.34820953011512756},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.283677339553833},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.22970035672187805},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.21625500917434692},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.19120407104492188},{"id":"https://openalex.org/keywords/botany","display_name":"Botany","score":0.16910535097122192},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.11547976732254028},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.10632529854774475},{"id":"https://openalex.org/keywords/ecology","display_name":"Ecology","score":0.10186505317687988},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.07920634746551514}],"concepts":[{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.8070484399795532},{"id":"https://openalex.org/C88160329","wikidata":"https://www.wikidata.org/wiki/Q47053","display_name":"Estuary","level":2,"score":0.6396857500076294},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5518348217010498},{"id":"https://openalex.org/C2779251273","wikidata":"https://www.wikidata.org/wiki/Q43436","display_name":"Pearl","level":2,"score":0.5223637223243713},{"id":"https://openalex.org/C2778902199","wikidata":"https://www.wikidata.org/wiki/Q133878","display_name":"Chlorophyll a","level":2,"score":0.46541571617126465},{"id":"https://openalex.org/C2780892065","wikidata":"https://www.wikidata.org/wiki/Q184755","display_name":"Phytoplankton","level":3,"score":0.45917442440986633},{"id":"https://openalex.org/C2776939893","wikidata":"https://www.wikidata.org/wiki/Q7076134","display_name":"Ocean color","level":3,"score":0.45461851358413696},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.42880862951278687},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.4023613929748535},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34820953011512756},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.283677339553833},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.22970035672187805},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.21625500917434692},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.19120407104492188},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.16910535097122192},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.11547976732254028},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.10632529854774475},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.10186505317687988},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.07920634746551514},{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2019.2923754","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2019.2923754","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/14","score":0.8600000143051147,"display_name":"Life below water"}],"awards":[{"id":"https://openalex.org/G1022896306","display_name":null,"funder_award_id":"XDA19060501","funder_id":"https://openalex.org/F4320321133","funder_display_name":"Chinese Academy of Sciences"},{"id":"https://openalex.org/G1027390002","display_name":null,"funder_award_id":"41406196","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6241535155","display_name":null,"funder_award_id":"XDA13010404","funder_id":"https://openalex.org/F4320321133","funder_display_name":"Chinese Academy of Sciences"},{"id":"https://openalex.org/G6841237058","display_name":null,"funder_award_id":"41876200","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321133","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W157447150","https://openalex.org/W239016156","https://openalex.org/W1505627925","https://openalex.org/W1968355551","https://openalex.org/W1968742676","https://openalex.org/W1973326545","https://openalex.org/W1975285091","https://openalex.org/W1976243692","https://openalex.org/W2003966758","https://openalex.org/W2009619252","https://openalex.org/W2012116092","https://openalex.org/W2019038438","https://openalex.org/W2042040410","https://openalex.org/W2042931437","https://openalex.org/W2063697674","https://openalex.org/W2066655346","https://openalex.org/W2082714424","https://openalex.org/W2086182371","https://openalex.org/W2108609306","https://openalex.org/W2129932080","https://openalex.org/W2130211955","https://openalex.org/W2143724757","https://openalex.org/W2153041282","https://openalex.org/W2154510870","https://openalex.org/W2155597445","https://openalex.org/W2183171587","https://openalex.org/W2353548961","https://openalex.org/W2592034834","https://openalex.org/W2615181033","https://openalex.org/W2737239481","https://openalex.org/W2766685544","https://openalex.org/W2789310671","https://openalex.org/W6679256270","https://openalex.org/W6681534324"],"related_works":["https://openalex.org/W163388362","https://openalex.org/W2002050179","https://openalex.org/W1865298002","https://openalex.org/W2347229634","https://openalex.org/W2369259155","https://openalex.org/W2966752677","https://openalex.org/W2366606856","https://openalex.org/W2122549482","https://openalex.org/W2383361116","https://openalex.org/W2072455701"],"abstract_inverted_index":{"An":[0],"algorithm":[1,56,153,175,208,214],"of":[2,81,116,131,136,188,227,256],"the":[3,21,31,39,54,58,100,106,110,117,121,134,137,141,151,156,173,180,184,206,219,225,251,257],"red-peak":[4],"envelop":[5],"area":[6,139],"(PEA)":[7],"near":[8,35],"700":[9,36],"nm":[10,194],"was":[11,215],"evaluated":[12],"using":[13,30,155],"in":[14,20,221,235,250],"situ":[15],"data":[16,96],"during":[17],"nine":[18],"cruises":[19],"Pearl":[22,258],"River":[23,259],"estuary":[24,260],"and":[25,48,74,89,94,109,133,143,161,183,197],"compared":[26,147],"with":[27,148],"other":[28,149],"algorithms":[29],"reflectance":[32],"peak":[33,108,118,138],"(RP)":[34],"nm,":[37],"including":[38],"fluorescence":[40],"line":[41],"height":[42],"(FLH),":[43],"maximum":[44],"chlorophyll":[45,132,236],"index":[46],"(MCI),":[47],"MCI2":[49],"algorithms.":[50],"Of":[51],"all":[52],"algorithms,":[53,150],"PEA":[55,101,152,174,207,213],"presented":[57,165],"most":[59,232],"accurate":[60],"performance":[61],"[R":[62],"<sup":[63,126,244],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[64,127,245],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[65,128],"=":[66,72,129],"0.74,":[67],"root-means":[68],"quare":[69],"error":[70],"(RMSE)":[71],"0.12]":[73],"provided":[75],"a":[76],"more":[77],"rational":[78],"spatial":[79],"distribution":[80],"phytoplankton":[82,203,222],"blooms":[83,204,223],"when":[84],"both":[85,105],"Sentinel":[86],"3":[87],"Ocean":[88],"Land":[90],"Color":[91],"Instrument":[92],"(OLCI)":[93],"Hyperion":[95,157],"were":[97,248],"used":[98,200],"because":[99],"integrates":[102],"information":[103],"from":[104,190],"moving":[107],"asymmetric":[111],"curve":[112],"on":[113,179],"each":[114],"side":[115],"due":[119],"to":[120,192,201,217,240],"high":[122],"correlation":[123],"relationship":[124],"(R":[125],"0.7)":[130],"ratio":[135],"between":[140],"left":[142],"right":[144],"halves.":[145],"Moreover,":[146],"developed":[154],"(higher":[158],"spectral":[159,185],"resolution)":[160],"OLCI":[162,189,212],"band":[163,181,186],"settings":[164,187],"similar":[166],"retrieval":[167],"accuracies.":[168],"These":[169],"results":[170],"demonstrated":[171],"that":[172],"is":[176,209],"less":[177],"dependent":[178],"settings,":[182],"650":[191],"750":[193],"are":[195],"reasonable":[196],"can":[198],"be":[199],"detect":[202],"if":[205],"applied.":[210],"The":[211,231],"applied":[216],"determine":[218],"variations":[220],"under":[224],"influences":[226],"strong":[228,262],"precipitation":[229,263],"events.":[230,264],"obvious":[233],"increases":[234],"concentration":[237],"(from":[238],"20":[239],"30":[241],"mg":[242],"m":[243],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">-3</sup>":[246],")":[247],"observed":[249],"middle":[252],"river":[253],"channel":[254],"upstream":[255],"after":[261]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}