{"id":"https://openalex.org/W3168368181","doi":"https://doi.org/10.3390/rs13122256","title":"Empirical Estimation of Nutrient, Organic Matter and Algal Chlorophyll in a Drinking Water Reservoir Using Landsat 5 TM Data","display_name":"Empirical Estimation of Nutrient, Organic Matter and Algal Chlorophyll in a Drinking Water Reservoir Using Landsat 5 TM Data","publication_year":2021,"publication_date":"2021-06-09","ids":{"openalex":"https://openalex.org/W3168368181","doi":"https://doi.org/10.3390/rs13122256","mag":"3168368181"},"language":"en","primary_location":{"id":"doi:10.3390/rs13122256","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13122256","pdf_url":"https://www.mdpi.com/2072-4292/13/12/2256/pdf?version=1623243613","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/13/12/2256/pdf?version=1623243613","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100761304","display_name":"Md Mamun","orcid":"https://orcid.org/0000-0002-0569-7535"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Md Mamun","raw_affiliation_strings":["Department of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074669481","display_name":"Jannatul Ferdous","orcid":"https://orcid.org/0000-0002-0752-518X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jannatul Ferdous","raw_affiliation_strings":["Climate Change Lab, Department of Civil Engineering, Military Institute of Science and Technology, Mirpur, Dhaka 1216, Bangladesh"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Climate Change Lab, Department of Civil Engineering, Military Institute of Science and Technology, Mirpur, Dhaka 1216, Bangladesh","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5034935740","display_name":"Kwang\u2010Guk An","orcid":"https://orcid.org/0000-0003-2018-580X"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Kwang-Guk An","raw_affiliation_strings":["Department of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Korea","institution_ids":["https://openalex.org/I196345858"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5034935740"],"corresponding_institution_ids":["https://openalex.org/I196345858"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":2.0826,"has_fulltext":false,"cited_by_count":21,"citation_normalized_percentile":{"value":0.86105067,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"13","issue":"12","first_page":"2256","last_page":"2256"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14249","display_name":"Water Quality Monitoring and Analysis","score":0.9872999787330627,"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"}},"topics":[{"id":"https://openalex.org/T14249","display_name":"Water Quality Monitoring and Analysis","score":0.9872999787330627,"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":0.9750000238418579,"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"}},{"id":"https://openalex.org/T11634","display_name":"Water Quality and Pollution Assessment","score":0.9718000292778015,"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/environmental-science","display_name":"Environmental science","score":0.6998263001441956},{"id":"https://openalex.org/keywords/chlorophyll-a","display_name":"Chlorophyll a","score":0.6063830256462097},{"id":"https://openalex.org/keywords/correlation-coefficient","display_name":"Correlation coefficient","score":0.605457603931427},{"id":"https://openalex.org/keywords/water-quality","display_name":"Water quality","score":0.5692996978759766},{"id":"https://openalex.org/keywords/organic-matter","display_name":"Organic matter","score":0.556327760219574},{"id":"https://openalex.org/keywords/nutrient","display_name":"Nutrient","score":0.4970145523548126},{"id":"https://openalex.org/keywords/linear-regression","display_name":"Linear regression","score":0.4888715147972107},{"id":"https://openalex.org/keywords/phytoplankton","display_name":"Phytoplankton","score":0.48617666959762573},{"id":"https://openalex.org/keywords/atmospheric-correction","display_name":"Atmospheric correction","score":0.4408147931098938},{"id":"https://openalex.org/keywords/in-situ","display_name":"In situ","score":0.43797796964645386},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.43746697902679443},{"id":"https://openalex.org/keywords/reflectivity","display_name":"Reflectivity","score":0.36827725172042847},{"id":"https://openalex.org/keywords/environmental-chemistry","display_name":"Environmental chemistry","score":0.3558228015899658},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.23925787210464478},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.19746151566505432},{"id":"https://openalex.org/keywords/ecology","display_name":"Ecology","score":0.13771605491638184},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.10165247321128845},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.10084149241447449},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.0650964081287384}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6998263001441956},{"id":"https://openalex.org/C2778902199","wikidata":"https://www.wikidata.org/wiki/Q133878","display_name":"Chlorophyll a","level":2,"score":0.6063830256462097},{"id":"https://openalex.org/C2780092901","wikidata":"https://www.wikidata.org/wiki/Q3433612","display_name":"Correlation coefficient","level":2,"score":0.605457603931427},{"id":"https://openalex.org/C2780797713","wikidata":"https://www.wikidata.org/wiki/Q625376","display_name":"Water quality","level":2,"score":0.5692996978759766},{"id":"https://openalex.org/C48743137","wikidata":"https://www.wikidata.org/wiki/Q1783121","display_name":"Organic matter","level":2,"score":0.556327760219574},{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.4970145523548126},{"id":"https://openalex.org/C48921125","wikidata":"https://www.wikidata.org/wiki/Q10861030","display_name":"Linear regression","level":2,"score":0.4888715147972107},{"id":"https://openalex.org/C2780892065","wikidata":"https://www.wikidata.org/wiki/Q184755","display_name":"Phytoplankton","level":3,"score":0.48617666959762573},{"id":"https://openalex.org/C2778329001","wikidata":"https://www.wikidata.org/wiki/Q4817104","display_name":"Atmospheric correction","level":3,"score":0.4408147931098938},{"id":"https://openalex.org/C2777822432","wikidata":"https://www.wikidata.org/wiki/Q216681","display_name":"In situ","level":2,"score":0.43797796964645386},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.43746697902679443},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.36827725172042847},{"id":"https://openalex.org/C107872376","wikidata":"https://www.wikidata.org/wiki/Q321355","display_name":"Environmental chemistry","level":1,"score":0.3558228015899658},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.23925787210464478},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.19746151566505432},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.13771605491638184},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.10165247321128845},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.10084149241447449},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0650964081287384},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs13122256","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13122256","pdf_url":"https://www.mdpi.com/2072-4292/13/12/2256/pdf?version=1623243613","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:8773ea8c4e3f4a85a7ce7408e37d7dd2","is_oa":true,"landing_page_url":"https://doaj.org/article/8773ea8c4e3f4a85a7ce7408e37d7dd2","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 13, Iss 12, p 2256 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/13/12/2256/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs13122256","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing; Volume 13; Issue 12; Pages: 2256","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs13122256","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13122256","pdf_url":"https://www.mdpi.com/2072-4292/13/12/2256/pdf?version=1623243613","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/6","display_name":"Clean water and sanitation","score":0.8299999833106995}],"awards":[{"id":"https://openalex.org/G7682466609","display_name":null,"funder_award_id":"2020-1008-01","funder_id":"https://openalex.org/F4320334877","funder_display_name":"Korea Environmental Industry and Technology Institute"}],"funders":[{"id":"https://openalex.org/F4320334877","display_name":"Korea Environmental Industry and Technology Institute","ror":"https://ror.org/022r1q746"}],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W3168368181.pdf"},"referenced_works_count":37,"referenced_works":["https://openalex.org/W615671193","https://openalex.org/W1553145774","https://openalex.org/W1564055254","https://openalex.org/W1964836960","https://openalex.org/W1965100246","https://openalex.org/W1992420498","https://openalex.org/W1994965132","https://openalex.org/W2008351987","https://openalex.org/W2020526877","https://openalex.org/W2028584426","https://openalex.org/W2033003384","https://openalex.org/W2046031002","https://openalex.org/W2066172140","https://openalex.org/W2079562299","https://openalex.org/W2088026037","https://openalex.org/W2162905331","https://openalex.org/W2164776980","https://openalex.org/W2167275748","https://openalex.org/W2172000864","https://openalex.org/W2277026905","https://openalex.org/W2326789038","https://openalex.org/W2339574120","https://openalex.org/W2510693902","https://openalex.org/W2513884524","https://openalex.org/W2616653639","https://openalex.org/W2619461124","https://openalex.org/W2735135918","https://openalex.org/W2800065845","https://openalex.org/W2896484722","https://openalex.org/W2989711258","https://openalex.org/W2995167551","https://openalex.org/W3002179370","https://openalex.org/W3008494548","https://openalex.org/W3035193370","https://openalex.org/W3037833772","https://openalex.org/W3118694537","https://openalex.org/W3121117209"],"related_works":["https://openalex.org/W2727882364","https://openalex.org/W2515150038","https://openalex.org/W2018570418","https://openalex.org/W2314303387","https://openalex.org/W2384073316","https://openalex.org/W2375532439","https://openalex.org/W1919712243","https://openalex.org/W4231309012","https://openalex.org/W2106775111","https://openalex.org/W2557982320"],"abstract_inverted_index":{"The":[0,124,213,254],"main":[1],"objective":[2],"of":[3,34,52,60,63,86,89,92,108,207,232,240,247],"this":[4],"study":[5,222,297],"was":[6],"to":[7,16,99,189,220,228,265],"develop":[8],"empirical":[9,215],"models":[10,39,53,216],"from":[11,115,263],"Landsat":[12,64,93,135,196,243,301],"5":[13,65,94,136,197,244,302],"TM":[14,66,95,137,198,245,303],"data":[15,69],"monitor":[17,229],"nutrient":[18],"(total":[19],"phosphorus:":[20],"TP),":[21],"organic":[22],"matter":[23],"(biological":[24],"oxygen":[25],"demand:":[26],"BOD),":[27],"and":[28,67,76,111,122,130,145,170,182,187,203,210,235,252,260,267,271,278,283,309],"algal":[29],"chlorophyll":[30],"(chlorophyll-a:":[31],"CHL-a).":[32],"Instead":[33],"traditional":[35],"monitoring":[36,310],"techniques,":[37],"such":[38],"could":[40,199,287],"be":[41,305],"substituted":[42],"for":[43,195,237,307],"water":[44,275,292,311],"quality":[45,276,312],"assessment":[46],"in":[47,119,314],"aquatic":[48],"systems.":[49],"A":[50,84],"set":[51],"were":[54,97,185,217],"generated":[55],"relating":[56],"surface":[57],"reflectance":[58,139],"values":[59],"four":[61],"bands":[62,91,181],"in-situ":[68,106],"by":[70,281],"multiple":[71],"linear":[72,191],"regression":[73],"analysis.":[74],"Radiometric":[75],"atmospheric":[77],"corrections":[78],"improved":[79],"the":[80,101,151,161,177,225,238,248,295,300,315],"satellite":[81],"image":[82],"quality.":[83,293],"total":[85],"32":[87],"compositions":[88,184],"different":[90],"images":[96,246],"considered":[98],"find":[100],"correlation":[102,163],"coefficient":[103],"(r)":[104],"with":[105,134,154,164,205],"measurement":[107],"TP,":[109,128,201,233,258],"BOD,":[110,129,202,234,259],"CHL-a":[112,131,146,204,236,261],"levels":[113],"collected":[114],"five":[116],"sampling":[117],"sites":[118,223],"2001,":[120,250],"2006,":[121,251],"2010.":[123,253,268],"results":[125,255],"showed":[126,150,160,256],"that":[127,257,299],"correlate":[132],"well":[133],"band":[138],"values.":[140],"TP":[141],"(r":[142,147,167,173],"=":[143,148,168,174],"\u22120.79)":[144,149],"strongest":[152],"relations":[153],"B1":[155,165],"(Blue).":[156],"In":[157],"contrast,":[158],"BOD":[159],"highest":[162],"(Blue)":[166],"\u22120.75)":[169],"B1*B3/B4":[171],"(Blue*Red/Near-infrared)":[172],"\u22120.76).":[175],"Considering":[176],"r":[178],"values,":[179],"significant":[180],"their":[183],"identified":[186],"used":[188],"generate":[190],"equations.":[192],"Such":[193],"equations":[194],"detect":[200],"accuracies":[206],"67%,":[208],"65%,":[209],"72%,":[211],"respectively.":[212],"developed":[214],"then":[218],"applied":[219],"all":[221],"on":[224],"Paldang":[226],"Reservoir":[227],"spatio-temporal":[230],"distributions":[231],"month":[239],"September":[241],"using":[242],"year":[249],"decreased":[262],"2001":[264],"2006":[266],"However,":[269],"S3":[270],"S4":[272],"still":[273],"have":[274],"issues":[277],"are":[279],"influenced":[280],"climatic":[282],"anthropogenic":[284],"factors,":[285],"which":[286],"significantly":[288],"affect":[289],"reservoir":[290],"drinking":[291],"Overall,":[294],"present":[296],"suggested":[298],"may":[304],"appropriate":[306],"estimating":[308],"parameters":[313],"reservoir.":[316]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":2}],"updated_date":"2026-05-22T06:13:13.366637","created_date":"2025-10-10T00:00:00"}