{"id":"https://openalex.org/W3043790022","doi":"https://doi.org/10.1109/access.2020.3009977","title":"Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe","display_name":"Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3043790022","doi":"https://doi.org/10.1109/access.2020.3009977","mag":"3043790022"},"language":"en","primary_location":{"id":"doi:10.1109/access.2020.3009977","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3009977","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2020.3009977","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5042672435","display_name":"Yangxiaoyue Liu","orcid":"https://orcid.org/0000-0003-3762-117X"},"institutions":[{"id":"https://openalex.org/I4210106122","display_name":"Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)","ror":"https://ror.org/00y7mag53","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210106122"]},{"id":"https://openalex.org/I4210147158","display_name":"Guangzhou Institute of Geography","ror":"https://ror.org/03tbxt129","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210147158"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yangxiaoyue Liu","raw_affiliation_strings":["Guangdong Open Laboratory of Geospatial Information Technology and Application, Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Engineering Technology Center of Remote Sensing Big Data Application of Guangdong Province, Guangzhou Institute of Geography, Guangzhou, China","Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China"],"raw_orcid":"https://orcid.org/0000-0003-3762-117X","affiliations":[{"raw_affiliation_string":"Guangdong Open Laboratory of Geospatial Information Technology and Application, Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Engineering Technology Center of Remote Sensing Big Data Application of Guangdong Province, Guangzhou Institute of Geography, Guangzhou, China","institution_ids":["https://openalex.org/I4210147158"]},{"raw_affiliation_string":"Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China","institution_ids":["https://openalex.org/I4210106122"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112545101","display_name":"Yaping Yang","orcid":null},"institutions":[{"id":"https://openalex.org/I152031979","display_name":"Nanjing Normal University","ror":"https://ror.org/036trcv74","country_code":"CN","type":"education","lineage":["https://openalex.org/I152031979"]},{"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/I4210141657","display_name":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application","ror":"https://ror.org/045yewh40","country_code":"CN","type":"facility","lineage":["https://openalex.org/I152031979","https://openalex.org/I4210141657"]},{"id":"https://openalex.org/I4210160793","display_name":"Institute of Geographic Sciences and Natural Resources Research","ror":"https://ror.org/04t1cdb72","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210160793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yaping Yang","raw_affiliation_strings":["Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing Normal University, Nanjing, China","State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing Normal University, Nanjing, China","institution_ids":["https://openalex.org/I4210141657","https://openalex.org/I152031979"]},{"raw_affiliation_string":"State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210160793","https://openalex.org/I19820366"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5063344744","display_name":"Wenlong Jing","orcid":"https://orcid.org/0000-0001-8021-3943"},"institutions":[{"id":"https://openalex.org/I4210106122","display_name":"Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)","ror":"https://ror.org/00y7mag53","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210106122"]},{"id":"https://openalex.org/I4210147158","display_name":"Guangzhou Institute of Geography","ror":"https://ror.org/03tbxt129","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210147158"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenlong Jing","raw_affiliation_strings":["Guangdong Open Laboratory of Geospatial Information Technology and Application, Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Engineering Technology Center of Remote Sensing Big Data Application of Guangdong Province, Guangzhou Institute of Geography, Guangzhou, China","Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China"],"raw_orcid":"https://orcid.org/0000-0001-8021-3943","affiliations":[{"raw_affiliation_string":"Guangdong Open Laboratory of Geospatial Information Technology and Application, Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Engineering Technology Center of Remote Sensing Big Data Application of Guangdong Province, Guangzhou Institute of Geography, Guangzhou, China","institution_ids":["https://openalex.org/I4210147158"]},{"raw_affiliation_string":"Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China","institution_ids":["https://openalex.org/I4210106122"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.7798,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.68781043,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"8","issue":null,"first_page":"133114","last_page":"133127"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11312","display_name":"Soil Moisture and Remote Sensing","score":1.0,"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/T11312","display_name":"Soil Moisture and Remote Sensing","score":1.0,"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/T10716","display_name":"Soil and Unsaturated Flow","score":0.9973999857902527,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11333","display_name":"Climate change and permafrost","score":0.9955999851226807,"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":0.7014724612236023},{"id":"https://openalex.org/keywords/water-content","display_name":"Water content","score":0.5552237629890442},{"id":"https://openalex.org/keywords/moisture","display_name":"Moisture","score":0.5278708338737488},{"id":"https://openalex.org/keywords/in-situ","display_name":"In situ","score":0.4594036638736725},{"id":"https://openalex.org/keywords/soil-science","display_name":"Soil science","score":0.4451358914375305},{"id":"https://openalex.org/keywords/gap-analysis","display_name":"Gap analysis (conservation)","score":0.4399818480014801},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.34657177329063416},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3365328907966614},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.2579483389854431},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.12399467825889587}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7014724612236023},{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.5552237629890442},{"id":"https://openalex.org/C176864760","wikidata":"https://www.wikidata.org/wiki/Q217651","display_name":"Moisture","level":2,"score":0.5278708338737488},{"id":"https://openalex.org/C2777822432","wikidata":"https://www.wikidata.org/wiki/Q216681","display_name":"In situ","level":2,"score":0.4594036638736725},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.4451358914375305},{"id":"https://openalex.org/C2779977028","wikidata":"https://www.wikidata.org/wiki/Q1493813","display_name":"Gap analysis (conservation)","level":3,"score":0.4399818480014801},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.34657177329063416},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3365328907966614},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.2579483389854431},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.12399467825889587},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C130217890","wikidata":"https://www.wikidata.org/wiki/Q47041","display_name":"Biodiversity","level":2,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2020.3009977","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3009977","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:692af34fb22146899f80905aa6046711","is_oa":true,"landing_page_url":"https://doaj.org/article/692af34fb22146899f80905aa6046711","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":"IEEE Access, Vol 8, Pp 133114-133127 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2020.3009977","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3009977","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G126861508","display_name":null,"funder_award_id":"BX20200100","funder_id":"https://openalex.org/F4320335768","funder_display_name":"National Postdoctoral Program for Innovative Talents"},{"id":"https://openalex.org/G4108749759","display_name":null,"funder_award_id":"CKCEST-2015-1-4","funder_id":"https://openalex.org/F4320327609","funder_display_name":"China Knowledge Centre for Engineering Sciences and Technology"},{"id":"https://openalex.org/G4529277331","display_name":null,"funder_award_id":"XDA19020304","funder_id":"https://openalex.org/F4320321133","funder_display_name":"Chinese Academy of Sciences"},{"id":"https://openalex.org/G4968835104","display_name":null,"funder_award_id":"XXH-13514","funder_id":"https://openalex.org/F4320321133","funder_display_name":"Chinese Academy of Sciences"},{"id":"https://openalex.org/G8274110818","display_name":null,"funder_award_id":"41801362","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/F4320321133","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35"},{"id":"https://openalex.org/F4320327609","display_name":"China Knowledge Centre for Engineering Sciences and Technology","ror":null},{"id":"https://openalex.org/F4320335768","display_name":"National Postdoctoral Program for Innovative Talents","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":80,"referenced_works":["https://openalex.org/W1574447377","https://openalex.org/W1819626098","https://openalex.org/W1926971900","https://openalex.org/W1968946567","https://openalex.org/W1969616272","https://openalex.org/W1973877061","https://openalex.org/W1982271317","https://openalex.org/W1983747517","https://openalex.org/W1984670836","https://openalex.org/W1993907449","https://openalex.org/W2011304109","https://openalex.org/W2012968254","https://openalex.org/W2013049148","https://openalex.org/W2037186079","https://openalex.org/W2039348932","https://openalex.org/W2045176421","https://openalex.org/W2049760535","https://openalex.org/W2050310403","https://openalex.org/W2055976274","https://openalex.org/W2077252525","https://openalex.org/W2096569581","https://openalex.org/W2100401723","https://openalex.org/W2102998469","https://openalex.org/W2108319416","https://openalex.org/W2114118532","https://openalex.org/W2117858619","https://openalex.org/W2119225191","https://openalex.org/W2132549823","https://openalex.org/W2133831422","https://openalex.org/W2147241431","https://openalex.org/W2151593676","https://openalex.org/W2154620531","https://openalex.org/W2171704845","https://openalex.org/W2173896314","https://openalex.org/W2250104552","https://openalex.org/W2286406264","https://openalex.org/W2313470070","https://openalex.org/W2338693065","https://openalex.org/W2368047754","https://openalex.org/W2399809112","https://openalex.org/W2496225726","https://openalex.org/W2518704075","https://openalex.org/W2523419686","https://openalex.org/W2548080803","https://openalex.org/W2579746766","https://openalex.org/W2582059183","https://openalex.org/W2582566895","https://openalex.org/W2588540686","https://openalex.org/W2603309785","https://openalex.org/W2617565932","https://openalex.org/W2737609272","https://openalex.org/W2738911869","https://openalex.org/W2759163218","https://openalex.org/W2776721746","https://openalex.org/W2777003700","https://openalex.org/W2780496495","https://openalex.org/W2782420567","https://openalex.org/W2792192198","https://openalex.org/W2792923883","https://openalex.org/W2799480767","https://openalex.org/W2799619743","https://openalex.org/W2883340505","https://openalex.org/W2889219979","https://openalex.org/W2890182766","https://openalex.org/W2895804671","https://openalex.org/W2916889011","https://openalex.org/W2942132780","https://openalex.org/W2953495101","https://openalex.org/W2955045786","https://openalex.org/W2966684393","https://openalex.org/W2994799647","https://openalex.org/W2998142089","https://openalex.org/W3007645801","https://openalex.org/W3025582806","https://openalex.org/W3027170800","https://openalex.org/W3125807057","https://openalex.org/W3142476506","https://openalex.org/W4243121063","https://openalex.org/W4245594719","https://openalex.org/W6987543524"],"related_works":["https://openalex.org/W2108512031","https://openalex.org/W2063755384","https://openalex.org/W2048409327","https://openalex.org/W2153306223","https://openalex.org/W2997015357","https://openalex.org/W2390117385","https://openalex.org/W2123825282","https://openalex.org/W1977273908","https://openalex.org/W2079990215","https://openalex.org/W2897030841"],"abstract_inverted_index":{"The":[0,67,74],"Essential":[1],"Climate":[2],"Variable":[3],"(ECV)":[4],"soil":[5],"moisture":[6],"(SM)":[7],"datasets,":[8],"originated":[9],"from":[10],"the":[11,32,40,50,62,107,110,119,124,134,142,148,151,186,193],"European":[12],"Space":[13],"Agency,":[14],"have":[15],"revealed":[16],"great":[17],"potential":[18,51],"for":[19],"application":[20],"in":[21,60,206],"hydrology":[22],"and":[23,35,136,182,197],"agriculture.":[24],"Hence,":[25],"it":[26],"is":[27,198],"essential":[28],"to":[29,38,91,106,118,131,147,191,200],"continuously":[30],"enhance":[31],"data":[33,75],"quality":[34],"spatial":[36],"completeness":[37],"satisfy":[39],"increasing":[41],"scientific":[42],"research":[43],"requirements.":[44],"In":[45],"this":[46,164,178],"study,":[47],"we":[48],"explore":[49],"possibility":[52],"of":[53,64,78,188,195],"Soil":[54],"Moisture":[55],"Active":[56],"Passive":[57],"(SMAP)":[58],"datasets":[59],"filling":[61],"gaps":[63,135,194],"ECV":[65,80,112,153,207],"SM.":[66],"comprehensive":[68],"assessment":[69],"results":[70],"show":[71],"that:":[72],"(1)":[73],"missing":[76],"percent":[77],"gap-filled":[79,111],"decreases":[81],"20%":[82],"on":[83,185],"average,":[84],"which":[85],"can":[86],"be":[87,129,169],"one":[88],"step":[89],"closer":[90],"generate":[92],"a":[93,203],"seamlessly":[94],"covered":[95],"global":[96],"land":[97],"surface":[98],"SM":[99,126,154,208],"product":[100],"with":[101],"favorable":[102,139],"quality.":[103],"(2)":[104],"Compared":[105,146],"original":[108,152],"ECV,":[109,196],"products":[113,127,155],"express":[114],"similar":[115],"good":[116],"response":[117],"in-situ":[120,149],"measurements,":[121,150],"suggesting":[122],"that":[123],"SMAP":[125,190],"could":[128,168],"taken":[130],"efficiently":[132],"fill":[133,192],"consistently":[137],"maintain":[138],"accuracy":[140],"at":[141],"same":[143],"time.":[144],"(3)":[145],"demonstrate":[156],"extremely":[157],"high":[158,166],"probability":[159],"density":[160],"peak":[161],"percentages.":[162],"Fortunately,":[163],"eminent":[165],"value":[167],"effectively":[170],"rectified":[171],"through":[172],"gap-filling":[173,209],"progress":[174],"using":[175],"SMAP.":[176],"Overall,":[177],"study":[179],"conducts":[180],"objective":[181],"detailed":[183],"evaluation":[184],"performance":[187],"applying":[189],"expected":[199],"act":[201],"as":[202],"valuable":[204],"reference":[205],"method.":[210]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}