{"id":"https://openalex.org/W4309739701","doi":"https://doi.org/10.3390/rs14225875","title":"Dual-Frequency Retrieval of Soil Moisture from L- and S-Band Radar Data for Corn and Soybean","display_name":"Dual-Frequency Retrieval of Soil Moisture from L- and S-Band Radar Data for Corn and Soybean","publication_year":2022,"publication_date":"2022-11-19","ids":{"openalex":"https://openalex.org/W4309739701","doi":"https://doi.org/10.3390/rs14225875"},"language":"en","primary_location":{"id":"doi:10.3390/rs14225875","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs14225875","pdf_url":"https://www.mdpi.com/2072-4292/14/22/5875/pdf?version=1668851790","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/2072-4292/14/22/5875/pdf?version=1668851790","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5041211777","display_name":"Tien-Hao Liao","orcid":"https://orcid.org/0000-0002-0678-5545"},"institutions":[{"id":"https://openalex.org/I122411786","display_name":"California Institute of Technology","ror":"https://ror.org/05dxps055","country_code":"US","type":"education","lineage":["https://openalex.org/I122411786"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Tien-Hao Liao","raw_affiliation_strings":["Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91109, USA"],"affiliations":[{"raw_affiliation_string":"Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91109, USA","institution_ids":["https://openalex.org/I122411786"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102751060","display_name":"Seung-Bum Kim","orcid":"https://orcid.org/0000-0002-1865-5617"},"institutions":[{"id":"https://openalex.org/I1334627681","display_name":"Jet Propulsion Laboratory","ror":"https://ror.org/027k65916","country_code":"US","type":"facility","lineage":["https://openalex.org/I122411786","https://openalex.org/I1334627681","https://openalex.org/I4210124779"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Seung-Bum Kim","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA"],"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA","institution_ids":["https://openalex.org/I1334627681"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5041211777"],"corresponding_institution_ids":["https://openalex.org/I122411786"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":0.5193,"has_fulltext":true,"cited_by_count":6,"citation_normalized_percentile":{"value":0.59738449,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"14","issue":"22","first_page":"5875","last_page":"5875"},"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11234","display_name":"Precipitation Measurement and Analysis","score":0.9972000122070312,"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/remote-sensing","display_name":"Remote sensing","score":0.6675852537155151},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.6652878522872925},{"id":"https://openalex.org/keywords/water-content","display_name":"Water content","score":0.6568295955657959},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6072795391082764},{"id":"https://openalex.org/keywords/moisture","display_name":"Moisture","score":0.5908997654914856},{"id":"https://openalex.org/keywords/vegetation","display_name":"Vegetation (pathology)","score":0.5101326107978821},{"id":"https://openalex.org/keywords/soil-science","display_name":"Soil science","score":0.4946551024913788},{"id":"https://openalex.org/keywords/backscatter","display_name":"Backscatter (email)","score":0.4404568076133728},{"id":"https://openalex.org/keywords/microwave","display_name":"Microwave","score":0.4166531562805176},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.27845871448516846},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.20110732316970825},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.20029941201210022},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.17179864645004272},{"id":"https://openalex.org/keywords/geotechnical-engineering","display_name":"Geotechnical engineering","score":0.10208487510681152},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07724776864051819}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6675852537155151},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.6652878522872925},{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.6568295955657959},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6072795391082764},{"id":"https://openalex.org/C176864760","wikidata":"https://www.wikidata.org/wiki/Q217651","display_name":"Moisture","level":2,"score":0.5908997654914856},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.5101326107978821},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.4946551024913788},{"id":"https://openalex.org/C30354325","wikidata":"https://www.wikidata.org/wiki/Q204667","display_name":"Backscatter (email)","level":3,"score":0.4404568076133728},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.4166531562805176},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.27845871448516846},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.20110732316970825},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.20029941201210022},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.17179864645004272},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.10208487510681152},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07724776864051819},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"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/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs14225875","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs14225875","pdf_url":"https://www.mdpi.com/2072-4292/14/22/5875/pdf?version=1668851790","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:56a21bc094b54c72a82db3182ec1f544","is_oa":true,"landing_page_url":"https://doaj.org/article/56a21bc094b54c72a82db3182ec1f544","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 14, Iss 22, p 5875 (2022)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/14/22/5875/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs14225875","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 14; Issue 22; Pages: 5875","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs14225875","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs14225875","pdf_url":"https://www.mdpi.com/2072-4292/14/22/5875/pdf?version=1668851790","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/15","score":0.7200000286102295,"display_name":"Life in Land"}],"awards":[{"id":"https://openalex.org/G1120742974","display_name":null,"funder_award_id":"80NM0018D000","funder_id":"https://openalex.org/F4320332375","funder_display_name":"Jet Propulsion Laboratory"},{"id":"https://openalex.org/G1569617442","display_name":null,"funder_award_id":"0NM0018D0004","funder_id":"https://openalex.org/F4320306101","funder_display_name":"National Aeronautics and Space Administration"},{"id":"https://openalex.org/G2676722403","display_name":null,"funder_award_id":"80NM0018D0004","funder_id":"https://openalex.org/F4320332375","funder_display_name":"Jet Propulsion Laboratory"},{"id":"https://openalex.org/G3648211085","display_name":null,"funder_award_id":"80NM0018D0004","funder_id":"https://openalex.org/F4320306101","funder_display_name":"National Aeronautics and Space Administration"},{"id":"https://openalex.org/G7336105542","display_name":null,"funder_award_id":"80NM0018D0004","funder_id":"https://openalex.org/F4320309398","funder_display_name":"California Institute of Technology"},{"id":"https://openalex.org/G7472321420","display_name":null,"funder_award_id":"0NM0018D0004","funder_id":"https://openalex.org/F4320332375","funder_display_name":"Jet Propulsion Laboratory"}],"funders":[{"id":"https://openalex.org/F4320306101","display_name":"National Aeronautics and Space Administration","ror":"https://ror.org/027ka1x80"},{"id":"https://openalex.org/F4320309398","display_name":"California Institute of Technology","ror":"https://ror.org/05dxps055"},{"id":"https://openalex.org/F4320332375","display_name":"Jet Propulsion Laboratory","ror":"https://ror.org/027k65916"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4309739701.pdf","grobid_xml":"https://content.openalex.org/works/W4309739701.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W1661217331","https://openalex.org/W1973527930","https://openalex.org/W2023740129","https://openalex.org/W2026604749","https://openalex.org/W2032639587","https://openalex.org/W2039348932","https://openalex.org/W2049567609","https://openalex.org/W2050890901","https://openalex.org/W2054393167","https://openalex.org/W2058232479","https://openalex.org/W2067453853","https://openalex.org/W2084670992","https://openalex.org/W2086540569","https://openalex.org/W2091160864","https://openalex.org/W2094728101","https://openalex.org/W2130989950","https://openalex.org/W2135786693","https://openalex.org/W2147820447","https://openalex.org/W2150295396","https://openalex.org/W2163642873","https://openalex.org/W2291523630","https://openalex.org/W2321844676","https://openalex.org/W2579746766","https://openalex.org/W2580334255","https://openalex.org/W2589687180","https://openalex.org/W2770155218","https://openalex.org/W2907323557","https://openalex.org/W3080944380","https://openalex.org/W3088005392","https://openalex.org/W3115361076","https://openalex.org/W3148976842","https://openalex.org/W3202643687","https://openalex.org/W6930120407"],"related_works":["https://openalex.org/W2901176169","https://openalex.org/W2245549564","https://openalex.org/W2110065798","https://openalex.org/W2170068767","https://openalex.org/W2152914184","https://openalex.org/W2363732456","https://openalex.org/W2354927441","https://openalex.org/W1585281834","https://openalex.org/W2329089160","https://openalex.org/W2008323412"],"abstract_inverted_index":{"Radar":[0],"backscattering":[1,41],"responds":[2],"differently":[3],"to":[4,8,62,215,229],"soil":[5,19,34,68,101,154,161],"moisture":[6,20,35,102,155,162],"due":[7],"vegetation":[9,135],"effects":[10,136],"depending":[11],"on":[12],"the":[13,54,64,84,87,98,104,124,128,134,138,159,168,174,177,180,186,197,230],"microwave":[14],"frequency.":[15],"The":[16,50,171,190,224],"retrieval":[17,36,99,149,169,193],"of":[18,56,100,117,176,179,200],"using":[21,38,47,103],"a":[22],"single":[23],"frequency":[24,192],"has":[25,150],"been":[26],"common.":[27],"In":[28],"this":[29,109],"paper,":[30],"we":[31],"study":[32],"how":[33],"performs":[37],"dual-frequency":[39,51],"radar":[40],"(L-":[42],"and":[43,75,81,130,142,182,202,207,217,236],"S-bands)":[44],"compared":[45,220],"with":[46,83,196,221],"L-band":[48,85,115],"only.":[49],"inputs":[52],"increase":[53],"amount":[55],"independent":[57,95],"information,":[58],"which":[59,210],"is":[60,112,121,194],"expected":[61],"reduce":[63],"uncertainty":[65],"in":[66,108,126],"estimating":[67],"moisture.":[69],"Forward":[70],"scattering":[71,119],"models":[72],"for":[73,86,97,153,205],"corn":[74,206],"soybean":[76],"fields":[77],"were":[78],"previously":[79],"generated":[80],"validated":[82],"SMAPVEX12":[88],"campaign:":[89],"they":[90],"are":[91,211],"inverted":[92],"as":[93],"an":[94],"test":[96],"SMEX02":[105],"campaign":[106],"data":[107],"paper.":[110],"It":[111],"demonstrated":[113],"that":[114,127],"modeling":[116,133],"forward":[118],"processes":[120],"scalable":[122],"at":[123],"S-band,":[125],"physics":[129],"parameters":[131],"behind":[132],"remain":[137],"same":[139],"between":[140],"L-":[141,145,181,235],"S-bands.":[143,237],"Either":[144],"or":[146],"S-band":[147,183],"single-frequency":[148,222],"reliable":[151],"performance":[152],"retrieval.":[156],"Furthermore,":[157],"averaging":[158,172],"retrieved":[160],"from":[163],"both":[164],"frequencies":[165],"further":[166],"improves":[167],"performance.":[170],"avoids":[173],"determination":[175],"weights":[178],"sigma0":[184],"during":[185],"cost":[187],"function":[188],"minimization.":[189],"dual":[191],"evaluated":[195],"unbiased":[198],"RMSE":[199],"0.031":[201],"0.057":[203],"m3/m3":[204],"soybean,":[208],"respectively,":[209],"improvements":[212],"by":[213],"up":[214],"0.010":[216],"0.004":[218],"m3/m3,":[219],"cases.":[223],"findings":[225],"here":[226],"can":[227],"apply":[228],"upcoming":[231],"NISAR":[232],"mission":[233],"featuring":[234]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-04-16T08:26:57.006410","created_date":"2022-11-29T00:00:00"}
