{"id":"https://openalex.org/W4294982806","doi":"https://doi.org/10.1109/tgrs.2022.3204885","title":"A Spatiotemporal Constrained Machine Learning Method for OCO-2 Solar-Induced Chlorophyll Fluorescence (SIF) Reconstruction","display_name":"A Spatiotemporal Constrained Machine Learning Method for OCO-2 Solar-Induced Chlorophyll Fluorescence (SIF) Reconstruction","publication_year":2022,"publication_date":"2022-01-01","ids":{"openalex":"https://openalex.org/W4294982806","doi":"https://doi.org/10.1109/tgrs.2022.3204885"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2022.3204885","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2022.3204885","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Geoscience and Remote Sensing","raw_type":"journal-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/A5114374395","display_name":"Huanfeng Shen","orcid":"https://orcid.org/0000-0002-4140-1869"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Huanfeng Shen","raw_affiliation_strings":["School of Resource and Environmental Sciences and the Collaborative Innovation Center of Geospatial Technology, Wuhan University, Wuhan, China"],"raw_orcid":"https://orcid.org/0000-0002-4140-1869","affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Sciences and the Collaborative Innovation Center of Geospatial Technology, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100375387","display_name":"Yuchen Wang","orcid":"https://orcid.org/0000-0001-8494-6124"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuchen Wang","raw_affiliation_strings":["School of Resource and Environmental Science, Wuhan University, Wuhan, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Science, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013248340","display_name":"Xiaobin Guan","orcid":"https://orcid.org/0000-0002-3812-7141"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaobin Guan","raw_affiliation_strings":["School of Resource and Environmental Science, Wuhan University, Wuhan, China"],"raw_orcid":"https://orcid.org/0000-0002-3812-7141","affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Science, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054864172","display_name":"Wenli Huang","orcid":"https://orcid.org/0000-0001-9608-1690"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenli Huang","raw_affiliation_strings":["School of Resource and Environmental Science, Wuhan University, Wuhan, China"],"raw_orcid":"https://orcid.org/0000-0001-9608-1690","affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Science, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100400995","display_name":"Jiajia Chen","orcid":"https://orcid.org/0000-0002-1394-1657"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiajia Chen","raw_affiliation_strings":["School of Resource and Environmental Science, Wuhan University, Wuhan, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Science, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010110834","display_name":"Dekun Lin","orcid":"https://orcid.org/0009-0004-1800-287X"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dekun Lin","raw_affiliation_strings":["School of Resource and Environmental Science, Wuhan University, Wuhan, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Resource and Environmental Science, Wuhan University, Wuhan, China","institution_ids":["https://openalex.org/I37461747"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072868866","display_name":"Wenxia Gan","orcid":"https://orcid.org/0000-0002-2335-208X"},"institutions":[{"id":"https://openalex.org/I91125648","display_name":"Wuhan Institute of Technology","ror":"https://ror.org/04jcykh16","country_code":"CN","type":"education","lineage":["https://openalex.org/I91125648"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenxia Gan","raw_affiliation_strings":["School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan, China","institution_ids":["https://openalex.org/I91125648"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.4317,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.92515399,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"60","issue":null,"first_page":"1","last_page":"17"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"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/T10111","display_name":"Remote Sensing in Agriculture","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"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/T11588","display_name":"Atmospheric and Environmental Gas Dynamics","score":0.9950000047683716,"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/T10226","display_name":"Land Use and Ecosystem Services","score":0.9513999819755554,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5539575219154358},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.487808495759964},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.46302950382232666},{"id":"https://openalex.org/keywords/observatory","display_name":"Observatory","score":0.46195414662361145},{"id":"https://openalex.org/keywords/gradient-boosting","display_name":"Gradient boosting","score":0.4260764718055725},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4025322496891022},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.34562966227531433},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.3269919753074646},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.32214540243148804},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.23967450857162476},{"id":"https://openalex.org/keywords/random-forest","display_name":"Random forest","score":0.1917058229446411},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.18402957916259766}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5539575219154358},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.487808495759964},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.46302950382232666},{"id":"https://openalex.org/C2779919027","wikidata":"https://www.wikidata.org/wiki/Q62832","display_name":"Observatory","level":2,"score":0.46195414662361145},{"id":"https://openalex.org/C70153297","wikidata":"https://www.wikidata.org/wiki/Q5591907","display_name":"Gradient boosting","level":3,"score":0.4260764718055725},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4025322496891022},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34562966227531433},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3269919753074646},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.32214540243148804},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.23967450857162476},{"id":"https://openalex.org/C169258074","wikidata":"https://www.wikidata.org/wiki/Q245748","display_name":"Random forest","level":2,"score":0.1917058229446411},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.18402957916259766},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2022.3204885","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2022.3204885","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/12","display_name":"Responsible consumption and production","score":0.4000000059604645}],"awards":[{"id":"https://openalex.org/G4203903562","display_name":null,"funder_award_id":"2019YFB2102903","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G6570054901","display_name":null,"funder_award_id":"42001371","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7773520444","display_name":null,"funder_award_id":"2042022kf1070","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":67,"referenced_works":["https://openalex.org/W1476248438","https://openalex.org/W1643008739","https://openalex.org/W1896386811","https://openalex.org/W1973749534","https://openalex.org/W1994157009","https://openalex.org/W2019623635","https://openalex.org/W2039596145","https://openalex.org/W2052648234","https://openalex.org/W2074749099","https://openalex.org/W2102127703","https://openalex.org/W2106662262","https://openalex.org/W2109542058","https://openalex.org/W2126571464","https://openalex.org/W2144245323","https://openalex.org/W2147423506","https://openalex.org/W2157144502","https://openalex.org/W2158143121","https://openalex.org/W2162066572","https://openalex.org/W2167787089","https://openalex.org/W2182585836","https://openalex.org/W2295598076","https://openalex.org/W2399029735","https://openalex.org/W2480175994","https://openalex.org/W2553788507","https://openalex.org/W2763833521","https://openalex.org/W2766496462","https://openalex.org/W2773476923","https://openalex.org/W2791585488","https://openalex.org/W2793815698","https://openalex.org/W2800044770","https://openalex.org/W2800635075","https://openalex.org/W2808730255","https://openalex.org/W2809295405","https://openalex.org/W2888529949","https://openalex.org/W2895318950","https://openalex.org/W2905451425","https://openalex.org/W2911777435","https://openalex.org/W2919558946","https://openalex.org/W2950193666","https://openalex.org/W2950734190","https://openalex.org/W2951572255","https://openalex.org/W2956697767","https://openalex.org/W2966594090","https://openalex.org/W2979741337","https://openalex.org/W2986457312","https://openalex.org/W2986780979","https://openalex.org/W2995846871","https://openalex.org/W3001646307","https://openalex.org/W3008379897","https://openalex.org/W3008439211","https://openalex.org/W3009645646","https://openalex.org/W3034566098","https://openalex.org/W3039959470","https://openalex.org/W3081932258","https://openalex.org/W3090139286","https://openalex.org/W3092501609","https://openalex.org/W3098905200","https://openalex.org/W3116644735","https://openalex.org/W3122817556","https://openalex.org/W3127794790","https://openalex.org/W3161511213","https://openalex.org/W3166749875","https://openalex.org/W3184106028","https://openalex.org/W3186915699","https://openalex.org/W4206565405","https://openalex.org/W6745609711","https://openalex.org/W6763729347"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W2357146953","https://openalex.org/W1554583116","https://openalex.org/W1852911463","https://openalex.org/W4379178153","https://openalex.org/W2075453317","https://openalex.org/W4289760565","https://openalex.org/W2377904730","https://openalex.org/W2051487156","https://openalex.org/W2362065907"],"abstract_inverted_index":{"Solar-induced":[0],"chlorophyll":[1],"fluorescence":[2],"(SIF)":[3],"is":[4,174],"an":[5,145,237],"intuitive":[6],"and":[7,52,95,114,209,250],"accurate":[8,244],"way":[9,239],"to":[10,78,101,240,254],"measure":[11],"vegetation":[12,115],"photosynthesis.":[13],"Orbiting":[14],"Carbon":[15],"Observatory-2":[16],"(OCO-2)-retrieved":[17],"SIF":[18,44,83,188,248],"has":[19],"shown":[20],"great":[21],"potential":[22],"in":[23,130,149,169,177,205],"estimating":[24],"terrestrial":[25],"gross":[26],"primary":[27],"production":[28],"(GPP),":[29],"but":[30],"the":[31,49,56,89,103,106,111,122,127,131,161,170,193,196,218],"discontinuous":[32],"spatial":[33,51,94,207],"coverage":[34],"limits":[35],"its":[36],"application.":[37],"Although":[38],"some":[39],"researchers":[40],"have":[41,47],"reconstructed":[42],"OCO-2":[43,82,108,247],"data,":[45,58],"few":[46],"considered":[48],"uneven":[50],"temporal":[53,96,210],"distribution":[54,91,208],"of":[55,147,160,195],"swath-distributed":[57,107],"which":[59],"can":[60,125,199,220],"induce":[61],"large":[62],"uncertainties.":[63],"In":[64],"this":[65],"article,":[66],"we":[67],"propose":[68],"a":[69,80,201,242,259],"spatiotemporal":[70],"constrained":[71],"light":[72,163],"gradient":[73,164],"boosting":[74,165],"machine":[75,166,231],"model":[76],"(ST-LGBM)":[77],"reconstruct":[79,241,255],"contiguous":[81],"product":[84,249],"(eight":[85],"days,":[86],"0.05\u00b0),":[87],"considering":[88],"data":[90,133,172,257],"characteristics.":[92,117],"Two":[93],"constraining":[97],"factors":[98],"are":[99],"introduced":[100],"utilize":[102],"relationships":[104],"between":[105],"samples,":[109],"combining":[110],"geographical":[112],"regularity":[113],"phenological":[116],"The":[118,157,180,212],"results":[119,194,223],"indicate":[120],"that":[121,192,217],"ST-LGBM":[123,197,219],"method":[124,168,198],"improve":[126],"reconstruction":[128],"accuracy":[129,159],"missing":[132,171],"areas":[134,173],"(":[135],"<inline-formula":[136,150],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[137,151],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">":[138,152],"<tex-math":[139,153],"notation=\"LaTeX\">$R^{2}=":[140],"0.79$":[141],"</tex-math></inline-formula>":[142,155],"),":[143],"with":[144,183,258],"increment":[146],"0.05":[148],"notation=\"LaTeX\">$R^{2}$":[154],".":[156],"declined":[158],"traditional":[162],"(LightGBM)":[167],"well":[175],"alleviated":[176],"our":[178],"results.":[179],"real-data":[181],"comparison":[182],"TROPOspheric":[184],"Monitoring":[185],"Instrument":[186],"(TROPOMI)":[187],"observations":[189],"also":[190,215,251],"shows":[191,216],"achieve":[200],"much":[202],"better":[203],"consistency,":[204],"both":[206],"variation.":[211],"sensitivity":[213],"analysis":[214],"support":[221],"stable":[222],"when":[224],"using":[225],"various":[226],"input":[227],"combinations":[228],"or":[229],"different":[230],"learning":[232],"models.":[233],"This":[234],"approach":[235],"represents":[236],"innovative":[238],"more":[243],"globally":[245],"continuous":[246],"provides":[252],"references":[253],"other":[256],"similar":[260],"distribution.":[261]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}