{"id":"https://openalex.org/W3206818042","doi":"https://doi.org/10.1109/igarss47720.2021.9555106","title":"Variation of Satellite-Derived Aerosol Optical Depth over China Before and After the COVID-19 Pandemic","display_name":"Variation of Satellite-Derived Aerosol Optical Depth over China Before and After the COVID-19 Pandemic","publication_year":2021,"publication_date":"2021-07-11","ids":{"openalex":"https://openalex.org/W3206818042","doi":"https://doi.org/10.1109/igarss47720.2021.9555106","mag":"3206818042"},"language":"en","primary_location":{"id":"doi:10.1109/igarss47720.2021.9555106","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9555106","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-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/A5057904261","display_name":"Qingmiao Ma","orcid":"https://orcid.org/0000-0002-1010-5688"},"institutions":[{"id":"https://openalex.org/I118574674","display_name":"Jiangsu Normal University","ror":"https://ror.org/051hvcm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I118574674"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Qingmiao Ma","raw_affiliation_strings":["School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China"],"affiliations":[{"raw_affiliation_string":"School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China","institution_ids":["https://openalex.org/I118574674"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100425073","display_name":"Yingjie Li","orcid":"https://orcid.org/0000-0002-6770-6986"},"institutions":[{"id":"https://openalex.org/I118574674","display_name":"Jiangsu Normal University","ror":"https://ror.org/051hvcm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I118574674"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yingjie Li","raw_affiliation_strings":["School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China"],"affiliations":[{"raw_affiliation_string":"School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China","institution_ids":["https://openalex.org/I118574674"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004563298","display_name":"Shuguo Wang","orcid":"https://orcid.org/0000-0002-2619-4339"},"institutions":[{"id":"https://openalex.org/I118574674","display_name":"Jiangsu Normal University","ror":"https://ror.org/051hvcm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I118574674"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuguo Wang","raw_affiliation_strings":["School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China"],"affiliations":[{"raw_affiliation_string":"School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China","institution_ids":["https://openalex.org/I118574674"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058481347","display_name":"Peipei Cui","orcid":null},"institutions":[{"id":"https://openalex.org/I118574674","display_name":"Jiangsu Normal University","ror":"https://ror.org/051hvcm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I118574674"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Peipei Cui","raw_affiliation_strings":["School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China"],"affiliations":[{"raw_affiliation_string":"School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou, Jiangsu, China","institution_ids":["https://openalex.org/I118574674"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5057904261"],"corresponding_institution_ids":["https://openalex.org/I118574674"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.11781737,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"7279","last_page":"7282"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12916","display_name":"COVID-19 impact on air quality","score":0.9980999827384949,"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/T12916","display_name":"COVID-19 impact on air quality","score":0.9980999827384949,"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/T10347","display_name":"Atmospheric aerosols and clouds","score":0.9976999759674072,"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/T10766","display_name":"Urban Heat Island Mitigation","score":0.9884999990463257,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.7181911468505859},{"id":"https://openalex.org/keywords/beijing","display_name":"Beijing","score":0.7130624055862427},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.7129045128822327},{"id":"https://openalex.org/keywords/aerosol","display_name":"Aerosol","score":0.7043426632881165},{"id":"https://openalex.org/keywords/coronavirus-disease-2019","display_name":"Coronavirus disease 2019 (COVID-19)","score":0.6551169157028198},{"id":"https://openalex.org/keywords/china","display_name":"China","score":0.5794006586074829},{"id":"https://openalex.org/keywords/pandemic","display_name":"Pandemic","score":0.5588104724884033},{"id":"https://openalex.org/keywords/atmosphere","display_name":"Atmosphere (unit)","score":0.5119596719741821},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.47343873977661133},{"id":"https://openalex.org/keywords/atmospheric-sciences","display_name":"Atmospheric sciences","score":0.4577473998069763},{"id":"https://openalex.org/keywords/climatology","display_name":"Climatology","score":0.4536804258823395},{"id":"https://openalex.org/keywords/severe-acute-respiratory-syndrome-coronavirus-2","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","score":0.4382021725177765},{"id":"https://openalex.org/keywords/2019-20-coronavirus-outbreak","display_name":"2019-20 coronavirus outbreak","score":0.42373234033584595},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.33056217432022095},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.23294514417648315},{"id":"https://openalex.org/keywords/outbreak","display_name":"Outbreak","score":0.139853835105896},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.1041104793548584},{"id":"https://openalex.org/keywords/disease","display_name":"Disease","score":0.07284343242645264},{"id":"https://openalex.org/keywords/infectious-disease","display_name":"Infectious disease (medical specialty)","score":0.0645836889743805},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.06184351444244385}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7181911468505859},{"id":"https://openalex.org/C2778304055","wikidata":"https://www.wikidata.org/wiki/Q657474","display_name":"Beijing","level":3,"score":0.7130624055862427},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.7129045128822327},{"id":"https://openalex.org/C2779345167","wikidata":"https://www.wikidata.org/wiki/Q104541","display_name":"Aerosol","level":2,"score":0.7043426632881165},{"id":"https://openalex.org/C3008058167","wikidata":"https://www.wikidata.org/wiki/Q84263196","display_name":"Coronavirus disease 2019 (COVID-19)","level":4,"score":0.6551169157028198},{"id":"https://openalex.org/C191935318","wikidata":"https://www.wikidata.org/wiki/Q148","display_name":"China","level":2,"score":0.5794006586074829},{"id":"https://openalex.org/C89623803","wikidata":"https://www.wikidata.org/wiki/Q12184","display_name":"Pandemic","level":5,"score":0.5588104724884033},{"id":"https://openalex.org/C65440619","wikidata":"https://www.wikidata.org/wiki/Q177974","display_name":"Atmosphere (unit)","level":2,"score":0.5119596719741821},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.47343873977661133},{"id":"https://openalex.org/C91586092","wikidata":"https://www.wikidata.org/wiki/Q757520","display_name":"Atmospheric sciences","level":1,"score":0.4577473998069763},{"id":"https://openalex.org/C49204034","wikidata":"https://www.wikidata.org/wiki/Q52139","display_name":"Climatology","level":1,"score":0.4536804258823395},{"id":"https://openalex.org/C3007834351","wikidata":"https://www.wikidata.org/wiki/Q82069695","display_name":"Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","level":5,"score":0.4382021725177765},{"id":"https://openalex.org/C3006700255","wikidata":"https://www.wikidata.org/wiki/Q81068910","display_name":"2019-20 coronavirus outbreak","level":3,"score":0.42373234033584595},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.33056217432022095},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.23294514417648315},{"id":"https://openalex.org/C116675565","wikidata":"https://www.wikidata.org/wiki/Q3241045","display_name":"Outbreak","level":2,"score":0.139853835105896},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1041104793548584},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.07284343242645264},{"id":"https://openalex.org/C524204448","wikidata":"https://www.wikidata.org/wiki/Q788926","display_name":"Infectious disease (medical specialty)","level":3,"score":0.0645836889743805},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.06184351444244385},{"id":"https://openalex.org/C159047783","wikidata":"https://www.wikidata.org/wiki/Q7215","display_name":"Virology","level":1,"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/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss47720.2021.9555106","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9555106","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8100000023841858,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W2050250373","https://openalex.org/W2103977502","https://openalex.org/W2767377409","https://openalex.org/W3017741277","https://openalex.org/W3021980696","https://openalex.org/W3023412052","https://openalex.org/W3027574333","https://openalex.org/W3027709318","https://openalex.org/W3031784917","https://openalex.org/W3035351365","https://openalex.org/W3035769787","https://openalex.org/W3037524864","https://openalex.org/W4247744091"],"related_works":["https://openalex.org/W2015747722","https://openalex.org/W2362050182","https://openalex.org/W2382418233","https://openalex.org/W2369897927","https://openalex.org/W3031731056","https://openalex.org/W3126136541","https://openalex.org/W4293167957","https://openalex.org/W2361035307","https://openalex.org/W2380455807","https://openalex.org/W2993975634"],"abstract_inverted_index":{"Due":[0],"to":[1],"the":[2,7,15,24,27,37,89],"Coronavirus":[3],"Disease":[4],"(COVID-19)":[5],"pandemic,":[6],"human":[8],"activities":[9],"in":[10,14,19,46,68,74,91,94,100,106],"China":[11,67],"and":[12,48,52,82,97],"even":[13,103],"world":[16],"were":[17,50],"reduced":[18],"2020,":[20],"which":[21],"also":[22],"caused":[23],"variation":[25],"of":[26],"atmospheric":[28,31],"environment,":[29],"especially":[30],"aerosol":[32,62],"emissions.":[33],"In":[34,76],"this":[35],"paper,":[36],"MODIS":[38,60],"level-3":[39],"gridded":[40],"atmosphere":[41],"monthly":[42],"global":[43],"joint":[44],"product":[45],"2019":[47],"2020":[49,69,101],"collected":[51],"processed.":[53],"After":[54],"preliminary":[55],"analysis,":[56],"we":[57],"found":[58],"that":[59],"annual":[61],"optical":[63],"depth":[64],"(AOD)":[65],"over":[66],"is":[70,102],"generally":[71],"lower":[72],"than":[73,105],"2019.":[75,107],"some":[77,95],"regions":[78],"such":[79],"as":[80],"Beijing-Tianjin-Hebei":[81],"Yangtze":[83],"River":[84],"Delta,":[85],"AOD":[86,99],"values":[87],"dropped":[88],"most":[90],"February.":[92],"However,":[93],"months":[96],"regions,":[98],"higher":[104],"More":[108],"studies":[109],"are":[110],"still":[111],"ongoing.":[112]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
