{"id":"https://openalex.org/W1998385159","doi":"https://doi.org/10.1109/jstars.2011.2174339","title":"Using Landsat/TM Imagery to Estimate Nitrogen and Phosphorus Concentration in Taihu Lake, China","display_name":"Using Landsat/TM Imagery to Estimate Nitrogen and Phosphorus Concentration in Taihu Lake, China","publication_year":2011,"publication_date":"2011-12-07","ids":{"openalex":"https://openalex.org/W1998385159","doi":"https://doi.org/10.1109/jstars.2011.2174339","mag":"1998385159"},"language":"en","primary_location":{"id":"doi:10.1109/jstars.2011.2174339","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2011.2174339","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"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 Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"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/A5100609297","display_name":"Jun Chen","orcid":"https://orcid.org/0000-0002-3850-4875"},"institutions":[{"id":"https://openalex.org/I4210116268","display_name":"Qingdao Institute of Marine Geology","ror":"https://ror.org/02aybg366","country_code":"CN","type":"facility","lineage":["https://openalex.org/I2799486974","https://openalex.org/I4210116268"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jun Chen","raw_affiliation_strings":["Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Qingdao, Shandong, China","Key Lab. of Marine Hydrocarbon Resources & Environ. Geol., Qingdao Inst. of Marine Geol., Qingdao, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Qingdao Institute of Marine Geology, Qingdao, Shandong, China","institution_ids":["https://openalex.org/I4210116268"]},{"raw_affiliation_string":"Key Lab. of Marine Hydrocarbon Resources & Environ. Geol., Qingdao Inst. of Marine Geol., Qingdao, China","institution_ids":["https://openalex.org/I4210116268"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5000890914","display_name":"Wenting Quan","orcid":null},"institutions":[{"id":"https://openalex.org/I4210166112","display_name":"State Key Laboratory of Remote Sensing Science","ror":"https://ror.org/05wzjqa24","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210166112"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenting Quan","raw_affiliation_strings":["Shanxi Remote Sensing Information Center Agriculture, China","Shanxi Remote Sensing Inf. Center Agric., Xian, China"],"affiliations":[{"raw_affiliation_string":"Shanxi Remote Sensing Information Center Agriculture, China","institution_ids":[]},{"raw_affiliation_string":"Shanxi Remote Sensing Inf. Center Agric., Xian, China","institution_ids":["https://openalex.org/I4210166112"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100609297"],"corresponding_institution_ids":["https://openalex.org/I4210116268"],"apc_list":{"value":1250,"currency":"USD","value_usd":1250},"apc_paid":null,"fwci":3.981,"has_fulltext":false,"cited_by_count":78,"citation_normalized_percentile":{"value":0.92957048,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":100},"biblio":{"volume":"5","issue":"1","first_page":"273","last_page":"280"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10032","display_name":"Marine and coastal ecosystems","score":0.9894000291824341,"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":0.9894000291824341,"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":0.9851999878883362,"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":0.9843000173568726,"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/remote-sensing","display_name":"Remote sensing","score":0.6921557188034058},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6742855310440063},{"id":"https://openalex.org/keywords/phosphorus","display_name":"Phosphorus","score":0.5747525691986084},{"id":"https://openalex.org/keywords/nitrogen","display_name":"Nitrogen","score":0.4848000109195709},{"id":"https://openalex.org/keywords/reflectivity","display_name":"Reflectivity","score":0.4158226549625397},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.40540117025375366},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.1579696238040924},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.09251901507377625}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6921557188034058},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6742855310440063},{"id":"https://openalex.org/C510538283","wikidata":"https://www.wikidata.org/wiki/Q674","display_name":"Phosphorus","level":2,"score":0.5747525691986084},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.4848000109195709},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.4158226549625397},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40540117025375366},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1579696238040924},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.09251901507377625},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/jstars.2011.2174339","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2011.2174339","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"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 Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/6","display_name":"Clean water and sanitation","score":0.800000011920929}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W9910819","https://openalex.org/W1122133064","https://openalex.org/W1968224941","https://openalex.org/W1971900122","https://openalex.org/W1972694223","https://openalex.org/W1981360966","https://openalex.org/W1985117795","https://openalex.org/W1990763518","https://openalex.org/W1990768980","https://openalex.org/W1991010875","https://openalex.org/W1992692357","https://openalex.org/W1993178254","https://openalex.org/W1993206107","https://openalex.org/W2002153410","https://openalex.org/W2002364494","https://openalex.org/W2009972118","https://openalex.org/W2015268693","https://openalex.org/W2020826639","https://openalex.org/W2024859456","https://openalex.org/W2029233054","https://openalex.org/W2029983885","https://openalex.org/W2032012583","https://openalex.org/W2040649777","https://openalex.org/W2047333411","https://openalex.org/W2051785383","https://openalex.org/W2052545390","https://openalex.org/W2053938945","https://openalex.org/W2064860163","https://openalex.org/W2070661864","https://openalex.org/W2084673591","https://openalex.org/W2093511622","https://openalex.org/W2108974415","https://openalex.org/W2123075642","https://openalex.org/W2123336286","https://openalex.org/W2126567721","https://openalex.org/W2147068325","https://openalex.org/W2151084103","https://openalex.org/W2151656099","https://openalex.org/W2152150926","https://openalex.org/W2158749254","https://openalex.org/W2171520572","https://openalex.org/W2365681427","https://openalex.org/W2368252222","https://openalex.org/W2372537468","https://openalex.org/W2624311149","https://openalex.org/W6739451203","https://openalex.org/W7014909426"],"related_works":["https://openalex.org/W2022097773","https://openalex.org/W2356841320","https://openalex.org/W2376761925","https://openalex.org/W2379260791","https://openalex.org/W2387982886","https://openalex.org/W2375809097","https://openalex.org/W2368909638","https://openalex.org/W2121524756","https://openalex.org/W3128246805","https://openalex.org/W4211077430"],"abstract_inverted_index":{"In":[0],"this":[1,198],"study,":[2],"we":[3,215],"evaluate":[4],"the":[5,8,66,83,109,119,124,143,150,156,172,177,200,212,217,222],"benefits":[6],"of":[7,10,21,82,102,111,155,176,197,203],"use":[9],"broad-band":[11],"reflectance":[12],"data":[13],"from":[14,130,226],"remote-sensing":[15,107,218],"imagery":[16],"for":[17,106,164,185],"improving":[18],"point":[19],"prediction":[20],"N":[22],"(Nitrogen)":[23],"and":[24,34,43,60,85,91,126,145,153,161,166,169,174,182,187,205,224],"PC":[25,61,67,84,112,125,146,206,225],"(Phosphorus":[26],"Concentration)":[27],"in":[28,37,47,57,62,149,171],"lakes.":[29],"The":[30,78,138],"algorithms":[31,53,208],"were":[32,89,128,147],"calibrated":[33],"validated":[35],"by":[36],"situ":[38],"measurements,":[39],"collected":[40,133],"on":[41,134],"27":[42],"28":[44,135],"October,":[45,136],"2003,":[46],"Taihu":[48,63],"Lake,":[49,64],"China.":[50],"Both":[51],"two":[52],"produced":[54],"well":[55],"performance":[56,73],"estimating":[58],"NC":[59,75,86,120,127,144,165,186,204,223],"but":[65],"retrieval":[68,76,87,113,121,139],"model":[69,114],"had":[70],"a":[71,193],"superior":[72],"to":[74,95,220],"model.":[77],"RE":[79],"(Relative":[80],"Error)":[81],"models":[88],"11.7%":[90],"35.6%,":[92],"respectively.":[93],"According":[94],"no":[96],"more":[97,116],"than":[98,118],"30%":[99],"accuracy":[100,110],"requirements":[101],"water":[103],"quality":[104],"estimation":[105,207],"technology,":[108],"is":[115],"acceptable":[117],"mode's.":[122],"Finally,":[123],"estimated":[129],"Landsat/TM":[131],"imagery,":[132],"2003.":[137],"results":[140],"showed":[141],"that":[142],"higher":[148],"south,":[151],"east":[152],"center":[154],"lake":[157,178],"(":[158,179],">;18":[159],"mg/l":[160,163,181,184],">;2":[162],"PC,":[167,188],"respectively)":[168],"lower":[170],"west":[173],"north":[175],"<;18":[180],"<;2":[183],"respectively).":[189],"Although":[190],"it":[191],"was":[192],"special":[194],"case":[195],"study":[196],"paper,":[199],"modeling":[201],"procedures":[202],"could":[209],"give":[210],"us":[211],"implication":[213],"when":[214],"used":[216],"technology":[219],"estimate":[221],"similar":[227],"or":[228],"dissimilar":[229],"aquatic":[230],"environments.":[231]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":9},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":9},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":8},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}