{"id":"https://openalex.org/W4378716963","doi":"https://doi.org/10.3390/rs15112813","title":"Accuracy Verification of Satellite Products and Temporal and Spatial Distribution Analysis and Prediction of the CH4 Concentration in China","display_name":"Accuracy Verification of Satellite Products and Temporal and Spatial Distribution Analysis and Prediction of the CH4 Concentration in China","publication_year":2023,"publication_date":"2023-05-29","ids":{"openalex":"https://openalex.org/W4378716963","doi":"https://doi.org/10.3390/rs15112813"},"language":"en","primary_location":{"id":"doi:10.3390/rs15112813","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15112813","pdf_url":"https://www.mdpi.com/2072-4292/15/11/2813/pdf?version=1685351278","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/2072-4292/15/11/2813/pdf?version=1685351278","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5008208751","display_name":"Kun Cai","orcid":"https://orcid.org/0000-0001-8896-7344"},"institutions":[{"id":"https://openalex.org/I173899330","display_name":"Henan University","ror":"https://ror.org/003xyzq10","country_code":"CN","type":"education","lineage":["https://openalex.org/I173899330"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kun Cai","raw_affiliation_strings":["Henan Key Laboratory of Big Data Analysis and Processing, Kaifeng 475004, China","School of Computer and Information Engineering, Henan University, Kaifeng 475004, China"],"affiliations":[{"raw_affiliation_string":"Henan Key Laboratory of Big Data Analysis and Processing, Kaifeng 475004, China","institution_ids":[]},{"raw_affiliation_string":"School of Computer and Information Engineering, Henan University, Kaifeng 475004, China","institution_ids":["https://openalex.org/I173899330"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075658591","display_name":"Xuan Yang","orcid":"https://orcid.org/0000-0003-1817-9814"},"institutions":[{"id":"https://openalex.org/I173899330","display_name":"Henan University","ror":"https://ror.org/003xyzq10","country_code":"CN","type":"education","lineage":["https://openalex.org/I173899330"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuan Yang","raw_affiliation_strings":["School of Computer and Information Engineering, Henan University, Kaifeng 475004, China"],"affiliations":[{"raw_affiliation_string":"School of Computer and Information Engineering, Henan University, Kaifeng 475004, China","institution_ids":["https://openalex.org/I173899330"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101697833","display_name":"Shenshen Li","orcid":"https://orcid.org/0000-0003-4954-1759"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"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":true,"raw_author_name":"Shenshen Li","raw_affiliation_strings":["State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China"],"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366","https://openalex.org/I4210166112"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102696790","display_name":"Yizhuo Xiao","orcid":null},"institutions":[{"id":"https://openalex.org/I173899330","display_name":"Henan University","ror":"https://ror.org/003xyzq10","country_code":"CN","type":"education","lineage":["https://openalex.org/I173899330"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yizhuo Xiao","raw_affiliation_strings":["School of Computer and Information Engineering, Henan University, Kaifeng 475004, China"],"affiliations":[{"raw_affiliation_string":"School of Computer and Information Engineering, Henan University, Kaifeng 475004, China","institution_ids":["https://openalex.org/I173899330"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071930403","display_name":"Baojun Qiao","orcid":"https://orcid.org/0000-0002-4519-2582"},"institutions":[{"id":"https://openalex.org/I173899330","display_name":"Henan University","ror":"https://ror.org/003xyzq10","country_code":"CN","type":"education","lineage":["https://openalex.org/I173899330"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Baojun Qiao","raw_affiliation_strings":["School of Computer and Information Engineering, Henan University, Kaifeng 475004, China"],"affiliations":[{"raw_affiliation_string":"School of Computer and Information Engineering, Henan University, Kaifeng 475004, China","institution_ids":["https://openalex.org/I173899330"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5041220862","display_name":"Yang Liu","orcid":"https://orcid.org/0000-0001-7018-646X"},"institutions":[{"id":"https://openalex.org/I173899330","display_name":"Henan University","ror":"https://ror.org/003xyzq10","country_code":"CN","type":"education","lineage":["https://openalex.org/I173899330"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yang Liu","raw_affiliation_strings":["Henan Key Laboratory of Big Data Analysis and Processing, Kaifeng 475004, China","School of Computer and Information Engineering, Henan University, Kaifeng 475004, China"],"affiliations":[{"raw_affiliation_string":"Henan Key Laboratory of Big Data Analysis and Processing, Kaifeng 475004, China","institution_ids":[]},{"raw_affiliation_string":"School of Computer and Information Engineering, Henan University, Kaifeng 475004, China","institution_ids":["https://openalex.org/I173899330"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101697833"],"corresponding_institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210137199","https://openalex.org/I4210166112"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":0.9454,"has_fulltext":true,"cited_by_count":6,"citation_normalized_percentile":{"value":0.72534644,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"15","issue":"11","first_page":"2813","last_page":"2813"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11588","display_name":"Atmospheric and Environmental Gas Dynamics","score":1.0,"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/T11588","display_name":"Atmospheric and Environmental Gas Dynamics","score":1.0,"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/T10075","display_name":"Atmospheric chemistry and aerosols","score":0.9987999796867371,"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/T11320","display_name":"Atmospheric Ozone and Climate","score":0.9965000152587891,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.7730162739753723},{"id":"https://openalex.org/keywords/china","display_name":"China","score":0.5569420456886292},{"id":"https://openalex.org/keywords/altitude","display_name":"Altitude (triangle)","score":0.5567556619644165},{"id":"https://openalex.org/keywords/spatial-distribution","display_name":"Spatial distribution","score":0.5458976030349731},{"id":"https://openalex.org/keywords/plateau","display_name":"Plateau (mathematics)","score":0.505955159664154},{"id":"https://openalex.org/keywords/climatology","display_name":"Climatology","score":0.4885738790035248},{"id":"https://openalex.org/keywords/seasonality","display_name":"Seasonality","score":0.46753498911857605},{"id":"https://openalex.org/keywords/physical-geography","display_name":"Physical geography","score":0.44824039936065674},{"id":"https://openalex.org/keywords/terrain","display_name":"Terrain","score":0.43041831254959106},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.4298439621925354},{"id":"https://openalex.org/keywords/atmospheric-sciences","display_name":"Atmospheric sciences","score":0.3982565104961395},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.25528693199157715},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.19330942630767822},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.18030279874801636},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.12456139922142029}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7730162739753723},{"id":"https://openalex.org/C191935318","wikidata":"https://www.wikidata.org/wiki/Q148","display_name":"China","level":2,"score":0.5569420456886292},{"id":"https://openalex.org/C6350597","wikidata":"https://www.wikidata.org/wiki/Q339495","display_name":"Altitude (triangle)","level":2,"score":0.5567556619644165},{"id":"https://openalex.org/C2777016058","wikidata":"https://www.wikidata.org/wiki/Q7574061","display_name":"Spatial distribution","level":2,"score":0.5458976030349731},{"id":"https://openalex.org/C2780030769","wikidata":"https://www.wikidata.org/wiki/Q4968575","display_name":"Plateau (mathematics)","level":2,"score":0.505955159664154},{"id":"https://openalex.org/C49204034","wikidata":"https://www.wikidata.org/wiki/Q52139","display_name":"Climatology","level":1,"score":0.4885738790035248},{"id":"https://openalex.org/C125403950","wikidata":"https://www.wikidata.org/wiki/Q2111082","display_name":"Seasonality","level":2,"score":0.46753498911857605},{"id":"https://openalex.org/C100970517","wikidata":"https://www.wikidata.org/wiki/Q52107","display_name":"Physical geography","level":1,"score":0.44824039936065674},{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.43041831254959106},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.4298439621925354},{"id":"https://openalex.org/C91586092","wikidata":"https://www.wikidata.org/wiki/Q757520","display_name":"Atmospheric sciences","level":1,"score":0.3982565104961395},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.25528693199157715},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.19330942630767822},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.18030279874801636},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.12456139922142029},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"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/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"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/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs15112813","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15112813","pdf_url":"https://www.mdpi.com/2072-4292/15/11/2813/pdf?version=1685351278","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:77fb610ec7a1496b8551158f3bfcf01c","is_oa":true,"landing_page_url":"https://doaj.org/article/77fb610ec7a1496b8551158f3bfcf01c","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","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 15, Iss 11, p 2813 (2023)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/15/11/2813/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs15112813","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 15; Issue 11; Pages: 2813","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs15112813","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15112813","pdf_url":"https://www.mdpi.com/2072-4292/15/11/2813/pdf?version=1685351278","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":[],"awards":[{"id":"https://openalex.org/G1121271761","display_name":null,"funder_award_id":"Program","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1250117548","display_name":null,"funder_award_id":"42071409","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5058181936","display_name":null,"funder_award_id":"207140","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5760752404","display_name":null,"funder_award_id":"Projects","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7570365276","display_name":null,"funder_award_id":"52002","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G989980530","display_name":null,"funder_award_id":"62176087","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320306101","display_name":"National Aeronautics and Space Administration","ror":"https://ror.org/027ka1x80"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4378716963.pdf"},"referenced_works_count":47,"referenced_works":["https://openalex.org/W75231382","https://openalex.org/W1536606969","https://openalex.org/W1804838734","https://openalex.org/W1965446559","https://openalex.org/W1968067794","https://openalex.org/W1977184325","https://openalex.org/W1981822248","https://openalex.org/W1983490113","https://openalex.org/W1985620334","https://openalex.org/W1992515216","https://openalex.org/W2005808072","https://openalex.org/W2007474065","https://openalex.org/W2020707620","https://openalex.org/W2063723977","https://openalex.org/W2087224513","https://openalex.org/W2092057513","https://openalex.org/W2109927385","https://openalex.org/W2114641640","https://openalex.org/W2132968007","https://openalex.org/W2144324887","https://openalex.org/W2149662495","https://openalex.org/W2151338578","https://openalex.org/W2171679601","https://openalex.org/W2302438733","https://openalex.org/W2330638519","https://openalex.org/W2343236158","https://openalex.org/W2367119345","https://openalex.org/W2370414564","https://openalex.org/W2383438089","https://openalex.org/W2389018613","https://openalex.org/W2427928079","https://openalex.org/W2728156591","https://openalex.org/W2782587690","https://openalex.org/W2796548472","https://openalex.org/W2918998932","https://openalex.org/W2954259827","https://openalex.org/W2975040027","https://openalex.org/W3033729438","https://openalex.org/W3112965332","https://openalex.org/W3151485304","https://openalex.org/W3158378802","https://openalex.org/W4206938102","https://openalex.org/W4210490776","https://openalex.org/W4223570837","https://openalex.org/W6679434191","https://openalex.org/W6697623334","https://openalex.org/W6765231954"],"related_works":["https://openalex.org/W1992962589","https://openalex.org/W2125395284","https://openalex.org/W3032871857","https://openalex.org/W1743191351","https://openalex.org/W3104633800","https://openalex.org/W3023567978","https://openalex.org/W1994384295","https://openalex.org/W2382722643","https://openalex.org/W1840252536","https://openalex.org/W2393282203"],"abstract_inverted_index":{"In":[0,189],"this":[1],"study,":[2],"the":[3,23,28,35,56,78,88,116,137,152,159,176,191,214,222],"spatiotemporal":[4],"variations":[5],"in":[6,9,68,100,118,151,179,219],"CH4":[7,49,102,119,138,180,192,216],"concentrations":[8,120,193],"China":[10,105,220],"from":[11,64,83,123,184],"2003":[12],"to":[13,85,94,158,186,212],"2021":[14],"are":[15,20],"investigated,":[16],"and":[17,69,97,115,130,154,168,198,200,204],"their":[18],"trends":[19],"forecasted":[21],"over":[22,221],"next":[24,223],"decade.":[25],"Based":[26],"on":[27,113],"seventh":[29],"edition":[30],"standard":[31],"product":[32],"retrieved":[33],"by":[34,55],"atmospheric":[36],"infrared":[37],"detector":[38],"(AIRS)":[39],"at":[40],"an":[41],"altitude":[42],"of":[43,90],"500":[44],"hPa,":[45],"we":[46],"verified":[47],"monthly":[48],"products":[50],"using":[51],"observational":[52],"data":[53,80,93],"provided":[54],"World":[57],"Data":[58],"Center":[59],"for":[60],"Greenhouse":[61],"Gases":[62],"(WDCGG)":[63],"six":[65],"ground":[66],"stations":[67],"around":[70],"China.":[71],"The":[72,133],"correlation":[73],"coefficients":[74],"(R":[75],"values)":[76],"between":[77],"two":[79],"sets":[81],"ranged":[82,183],"0.68":[84],"0.92,":[86],"signifying":[87],"ability":[89],"AIRS":[91],"inversion":[92],"represent":[95],"temporal":[96],"spatial":[98,126],"changes":[99,117],"surface":[101],"concentrations.":[103],"Additionally,":[104],"was":[106,210],"classified":[107],"into":[108],"three":[109,124],"regions":[110],"(steps)":[111],"based":[112],"terrain,":[114],"were":[121,194],"assessed":[122],"perspectives:":[125],"distribution,":[127],"interannual":[128],"variation,":[129],"seasonal":[131,230],"variation.":[132],"results":[134],"revealed":[135],"that":[136],"concentration":[139,181,217],"decreased":[140],"with":[141,147],"elevation":[142],"along":[143],"a":[144,207,228],"topographic":[145],"gradient,":[146],"high-value":[148],"areas":[149],"located":[150],"first":[153],"second":[155],"steps,":[156],"corresponding":[157],"eastern":[160],"Qinghai\u2013Tibet":[161],"Plateau,":[162],"northern":[163],"Xinjiang":[164],"Uygur":[165],"Autonomous":[166,171],"Region,":[167],"Inner":[169],"Mongolia":[170],"Region.":[172],"Over":[173],"19":[174],"years,":[175,225],"average":[177],"increase":[178],"has":[182],"65":[185],"175":[187],"ppb.":[188],"addition,":[190],"higher":[195],"during":[196,202],"summer":[197],"autumn":[199],"lower":[201],"spring":[203],"winter.":[205],"Finally,":[206],"SARIMA":[208],"model":[209],"used":[211],"predict":[213],"near-surface":[215],"trend":[218],"ten":[224],"which":[226],"indicated":[227],"continued":[229],"increase.":[231]},"counts_by_year":[{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":1}],"updated_date":"2026-04-19T08:26:33.389920","created_date":"2023-05-30T00:00:00"}