{"id":"https://openalex.org/W2954013437","doi":"https://doi.org/10.3390/rs11131558","title":"A Full-Coverage Daily Average PM2.5 Retrieval Method with Two-Stage IVW Fused MODIS C6 AOD and Two-Stage GAM Model","display_name":"A Full-Coverage Daily Average PM2.5 Retrieval Method with Two-Stage IVW Fused MODIS C6 AOD and Two-Stage GAM Model","publication_year":2019,"publication_date":"2019-07-01","ids":{"openalex":"https://openalex.org/W2954013437","doi":"https://doi.org/10.3390/rs11131558","mag":"2954013437"},"language":"en","primary_location":{"id":"doi:10.3390/rs11131558","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11131558","pdf_url":"https://www.mdpi.com/2072-4292/11/13/1558/pdf?version=1561973935","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/2072-4292/11/13/1558/pdf?version=1561973935","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5051763848","display_name":"Zhenqun Hua","orcid":null},"institutions":[{"id":"https://openalex.org/I109935558","display_name":"Ningbo University","ror":"https://ror.org/03et85d35","country_code":"CN","type":"education","lineage":["https://openalex.org/I109935558"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhenqun Hua","raw_affiliation_strings":["Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang 315211, China"],"affiliations":[{"raw_affiliation_string":"Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang 315211, China","institution_ids":["https://openalex.org/I109935558"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050009113","display_name":"Weiwei Sun","orcid":"https://orcid.org/0000-0003-3399-7858"},"institutions":[{"id":"https://openalex.org/I109935558","display_name":"Ningbo University","ror":"https://ror.org/03et85d35","country_code":"CN","type":"education","lineage":["https://openalex.org/I109935558"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Weiwei Sun","raw_affiliation_strings":["Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang 315211, China"],"affiliations":[{"raw_affiliation_string":"Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang 315211, China","institution_ids":["https://openalex.org/I109935558"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074018705","display_name":"Gang Yang","orcid":"https://orcid.org/0000-0002-7001-2037"},"institutions":[{"id":"https://openalex.org/I109935558","display_name":"Ningbo University","ror":"https://ror.org/03et85d35","country_code":"CN","type":"education","lineage":["https://openalex.org/I109935558"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Gang Yang","raw_affiliation_strings":["Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang 315211, China"],"affiliations":[{"raw_affiliation_string":"Department of Geography and Spatial Information Techniques, Ningbo University, Ningbo, Zhejiang 315211, China","institution_ids":["https://openalex.org/I109935558"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033017179","display_name":"Qian Du","orcid":"https://orcid.org/0000-0001-8354-7500"},"institutions":[{"id":"https://openalex.org/I99041443","display_name":"Mississippi State University","ror":"https://ror.org/0432jq872","country_code":"US","type":"education","lineage":["https://openalex.org/I4210141039","https://openalex.org/I99041443"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Qian Du","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Mississippi State University, Starkville, MS 39762, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Mississippi State University, Starkville, MS 39762, USA","institution_ids":["https://openalex.org/I99041443"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5050009113"],"corresponding_institution_ids":["https://openalex.org/I109935558"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":2.3984,"has_fulltext":false,"cited_by_count":38,"citation_normalized_percentile":{"value":0.87237128,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"11","issue":"13","first_page":"1558","last_page":"1558"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12120","display_name":"Air Quality Monitoring and Forecasting","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental 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/T12120","display_name":"Air Quality Monitoring and Forecasting","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental 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/T10075","display_name":"Atmospheric chemistry and aerosols","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"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/T10190","display_name":"Air Quality and Health Impacts","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2307","display_name":"Health, Toxicology and Mutagenesis"},"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/stage","display_name":"Stage (stratigraphy)","score":0.521776020526886},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5159841179847717},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4304945170879364},{"id":"https://openalex.org/keywords/missing-data","display_name":"Missing data","score":0.4190444350242615},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.3669884502887726},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.30893492698669434},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.08736121654510498},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.08697488903999329}],"concepts":[{"id":"https://openalex.org/C146357865","wikidata":"https://www.wikidata.org/wiki/Q1123245","display_name":"Stage (stratigraphy)","level":2,"score":0.521776020526886},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5159841179847717},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4304945170879364},{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.4190444350242615},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3669884502887726},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.30893492698669434},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.08736121654510498},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.08697488903999329},{"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}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs11131558","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11131558","pdf_url":"https://www.mdpi.com/2072-4292/11/13/1558/pdf?version=1561973935","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:e244dee45c834583b57f4fc6f8be65c1","is_oa":true,"landing_page_url":"https://doaj.org/article/e244dee45c834583b57f4fc6f8be65c1","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"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 11, Iss 13, p 1558 (2019)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/11/13/1558/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs11131558","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","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs11131558","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11131558","pdf_url":"https://www.mdpi.com/2072-4292/11/13/1558/pdf?version=1561973935","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/14","display_name":"Life below water","score":0.6499999761581421}],"awards":[{"id":"https://openalex.org/G3409118948","display_name":null,"funder_award_id":"LR19D010001","funder_id":"https://openalex.org/F4320338464","funder_display_name":"Natural Science Foundation of Zhejiang Province"},{"id":"https://openalex.org/G5087623972","display_name":null,"funder_award_id":"2017A610294","funder_id":"https://openalex.org/F4320332587","funder_display_name":"Natural Science Foundation of Ningbo"},{"id":"https://openalex.org/G7871462125","display_name":null,"funder_award_id":"41671342","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/F4320332587","display_name":"Natural Science Foundation of Ningbo","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320338464","display_name":"Natural Science Foundation of Zhejiang Province","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2954013437.pdf","grobid_xml":"https://content.openalex.org/works/W2954013437.grobid-xml"},"referenced_works_count":63,"referenced_works":["https://openalex.org/W408584842","https://openalex.org/W606264749","https://openalex.org/W609619727","https://openalex.org/W960576833","https://openalex.org/W1173523477","https://openalex.org/W1517984787","https://openalex.org/W1551438698","https://openalex.org/W1940238987","https://openalex.org/W1974279982","https://openalex.org/W1980891198","https://openalex.org/W1987098847","https://openalex.org/W1987337512","https://openalex.org/W1988613904","https://openalex.org/W1994126804","https://openalex.org/W2008103634","https://openalex.org/W2031528200","https://openalex.org/W2046239698","https://openalex.org/W2059737913","https://openalex.org/W2067129339","https://openalex.org/W2075193147","https://openalex.org/W2096118432","https://openalex.org/W2130042267","https://openalex.org/W2136811230","https://openalex.org/W2145265567","https://openalex.org/W2146959995","https://openalex.org/W2151133928","https://openalex.org/W2154132490","https://openalex.org/W2167549439","https://openalex.org/W2169258810","https://openalex.org/W2181531051","https://openalex.org/W2189499426","https://openalex.org/W2233873426","https://openalex.org/W2289128632","https://openalex.org/W2297827415","https://openalex.org/W2301552301","https://openalex.org/W2306844409","https://openalex.org/W2308284328","https://openalex.org/W2312602772","https://openalex.org/W2325187418","https://openalex.org/W2340238489","https://openalex.org/W2342665121","https://openalex.org/W2404713802","https://openalex.org/W2405742917","https://openalex.org/W2514545569","https://openalex.org/W2526513879","https://openalex.org/W2568589931","https://openalex.org/W2604422450","https://openalex.org/W2742946820","https://openalex.org/W2760726346","https://openalex.org/W2761974490","https://openalex.org/W2790077761","https://openalex.org/W2802946613","https://openalex.org/W2803993396","https://openalex.org/W2804926452","https://openalex.org/W2903932790","https://openalex.org/W2904851601","https://openalex.org/W2913491289","https://openalex.org/W2921891028","https://openalex.org/W2929543877","https://openalex.org/W2937452004","https://openalex.org/W6667456711","https://openalex.org/W6669065355","https://openalex.org/W6696332616"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W3024870410","https://openalex.org/W2410652950","https://openalex.org/W4380150146","https://openalex.org/W4283773154","https://openalex.org/W3139174110","https://openalex.org/W4289597203","https://openalex.org/W2085630472","https://openalex.org/W1977098485","https://openalex.org/W4285201053"],"abstract_inverted_index":{"Current":[0],"PM2.5":[1,26,45,94,111,176,208,223],"retrieval":[2],"maps":[3],"have":[4],"many":[5],"missing":[6,38,69],"values,":[7],"which":[8,67],"seriously":[9],"hinders":[10],"their":[11],"performance":[12,128],"in":[13,40,71,95,120,204],"real":[14],"applications.":[15],"This":[16],"paper":[17],"presents":[18],"a":[19,48,78,99,215],"framework":[20,213],"to":[21,57,107,125],"map":[22],"full-coverage":[23,110,206,220],"daily":[24,81,89,207,221],"average":[25,90,222],"concentrations":[27,224],"from":[28,225],"MODIS":[29,60,72,88,148,226],"C6":[30,61],"aerosol":[31],"optical":[32],"depth":[33],"(AOD)":[34],"products":[35],"and":[36,44,63,76,92,186,201],"fill":[37],"pixels":[39],"both":[41],"the":[42,59,86,109,115,127,137,144,151,167,170,196,211],"AOD":[43,65,74,91,149,228],"maps.":[46],"First,":[47],"two-stage":[49,100,138,171],"inversed":[50],"variance":[51],"weights":[52],"(IVW)":[53],"algorithm":[54],"was":[55,105],"adopted":[56],"fuse":[58],"Terra":[62],"Aqua":[64],"products,":[66],"fills":[68],"data":[70,75,162],"standard":[73,153,227],"obtains":[77],"high":[79],"coverage":[80,146],"average.":[82],"After":[83],"that,":[84],"using":[85],"fused":[87],"ground-level":[93,168],"all":[96],"grid":[97],"cells,":[98],"generalized":[101],"additive":[102],"model":[103],"(GAM)":[104],"implemented":[106],"obtain":[108,174],"concentrations.":[112,209],"Experiments":[113],"on":[114],"Yangtze":[116],"River":[117],"Delta":[118],"(YRD)":[119],"2013\u20132016":[121],"were":[122],"carefully":[123],"designed":[124],"validate":[126],"of":[129,147],"our":[130,191],"proposed":[131,212],"framework.":[132],"The":[133],"results":[134],"show":[135],"that":[136],"IVW":[139],"could":[140,158],"not":[141],"only":[142],"improve":[143],"spatial":[145],"against":[150],"original":[152],"product":[154],"by":[155],"230%,":[156],"but":[157],"also":[159],"keep":[160],"its":[161],"accuracy.":[163],"When":[164],"compared":[165],"with":[166],"measurements,":[169],"GAM":[172],"can":[173],"accurate":[175],"concentration":[177],"estimates":[178],"(R2":[179],"=":[180,183,188],"0.78,":[181],"RMSE":[182],"19.177":[184],"\u03bcg/m3,":[185],"RPE":[187],"28.9%).":[189],"Moreover,":[190],"method":[192,200],"performs":[193],"better":[194],"than":[195],"inverse":[197],"distance":[198],"weighted":[199],"kriging":[202],"methods":[203],"mapping":[205],"Therefore,":[210],"provides":[214],"good":[216],"methodology":[217],"for":[218],"retrieving":[219],"products.":[229]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":10},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":11},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":1}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}
