{"id":"https://openalex.org/W2044985946","doi":"https://doi.org/10.1109/jstars.2014.2359231","title":"Relating P-Band SAR Intensity to Biomass for Tropical Dense Forests in Hilly Terrain: $\\gamma^0$ or $t^0$?","display_name":"Relating P-Band SAR Intensity to Biomass for Tropical Dense Forests in Hilly Terrain: $\\gamma^0$ or $t^0$?","publication_year":2014,"publication_date":"2014-10-21","ids":{"openalex":"https://openalex.org/W2044985946","doi":"https://doi.org/10.1109/jstars.2014.2359231","mag":"2044985946"},"language":"en","primary_location":{"id":"doi:10.1109/jstars.2014.2359231","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2014.2359231","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"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/A5107541391","display_name":"Ludovic Villard","orcid":null},"institutions":[{"id":"https://openalex.org/I4210100083","display_name":"Centre d'\u00c9tudes Spatiales de la Biosph\u00e8re","ror":"https://ror.org/01225hq90","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I2799535048","https://openalex.org/I2802818602","https://openalex.org/I4210088668","https://openalex.org/I4210090127","https://openalex.org/I4210100083","https://openalex.org/I4210131494","https://openalex.org/I4210148025","https://openalex.org/I4210166444","https://openalex.org/I4405258862"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Ludovic Villard","raw_affiliation_strings":["CESBIO\u2014Centre d\u2019\u00c9tudes Spatiales de la Biosph\u00e8re, Edouard Belin, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CESBIO\u2014Centre d\u2019\u00c9tudes Spatiales de la Biosph\u00e8re, Edouard Belin, Toulouse, France","institution_ids":["https://openalex.org/I4210100083"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5054922981","display_name":"Thuy Le Toan","orcid":"https://orcid.org/0000-0003-4843-5962"},"institutions":[{"id":"https://openalex.org/I4210100083","display_name":"Centre d'\u00c9tudes Spatiales de la Biosph\u00e8re","ror":"https://ror.org/01225hq90","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I2799535048","https://openalex.org/I2802818602","https://openalex.org/I4210088668","https://openalex.org/I4210090127","https://openalex.org/I4210100083","https://openalex.org/I4210131494","https://openalex.org/I4210148025","https://openalex.org/I4210166444","https://openalex.org/I4405258862"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Thuy Le Toan","raw_affiliation_strings":["CESBIO\u2014Centre d\u2019\u00c9tudes Spatiales de la Biosph\u00e8re, Edouard Belin, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CESBIO\u2014Centre d\u2019\u00c9tudes Spatiales de la Biosph\u00e8re, Edouard Belin, Toulouse, France","institution_ids":["https://openalex.org/I4210100083"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210100083"],"apc_list":{"value":1800,"currency":"USD","value_usd":1800},"apc_paid":null,"fwci":114.4922,"has_fulltext":false,"cited_by_count":46,"citation_normalized_percentile":{"value":0.99804806,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":99},"biblio":{"volume":"8","issue":"1","first_page":"214","last_page":"223"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9998999834060669,"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/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.996399998664856,"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/T10770","display_name":"Soil Geostatistics and Mapping","score":0.991599977016449,"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/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.7759662866592407},{"id":"https://openalex.org/keywords/backscatter","display_name":"Backscatter (email)","score":0.7653466463088989},{"id":"https://openalex.org/keywords/biomass","display_name":"Biomass (ecology)","score":0.6949973106384277},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.660344123840332},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6073320508003235},{"id":"https://openalex.org/keywords/terrain","display_name":"Terrain","score":0.5933451056480408},{"id":"https://openalex.org/keywords/l-band","display_name":"L band","score":0.5489988923072815},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.5111463665962219},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.49717286229133606},{"id":"https://openalex.org/keywords/tropics","display_name":"Tropics","score":0.4655609428882599},{"id":"https://openalex.org/keywords/tropical-forest","display_name":"Tropical forest","score":0.45409056544303894},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.3444012403488159},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.3310895562171936},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.181860089302063},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.14851704239845276},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.13680455088615417},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.11230739951133728},{"id":"https://openalex.org/keywords/ecology","display_name":"Ecology","score":0.08722218871116638},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.07876795530319214},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.07491227984428406}],"concepts":[{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.7759662866592407},{"id":"https://openalex.org/C30354325","wikidata":"https://www.wikidata.org/wiki/Q204667","display_name":"Backscatter (email)","level":3,"score":0.7653466463088989},{"id":"https://openalex.org/C115540264","wikidata":"https://www.wikidata.org/wiki/Q2945560","display_name":"Biomass (ecology)","level":2,"score":0.6949973106384277},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.660344123840332},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6073320508003235},{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.5933451056480408},{"id":"https://openalex.org/C133969743","wikidata":"https://www.wikidata.org/wiki/Q2362353","display_name":"L band","level":2,"score":0.5489988923072815},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.5111463665962219},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.49717286229133606},{"id":"https://openalex.org/C50660011","wikidata":"https://www.wikidata.org/wiki/Q42530","display_name":"Tropics","level":2,"score":0.4655609428882599},{"id":"https://openalex.org/C2776285232","wikidata":"https://www.wikidata.org/wiki/Q1048194","display_name":"Tropical forest","level":2,"score":0.45409056544303894},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.3444012403488159},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3310895562171936},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.181860089302063},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.14851704239845276},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.13680455088615417},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.11230739951133728},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.08722218871116638},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.07876795530319214},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.07491227984428406},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jstars.2014.2359231","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2014.2359231","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15","score":0.75}],"awards":[],"funders":[{"id":"https://openalex.org/F4320321519","display_name":"Centre National d\u2019Etudes Spatiales","ror":"https://ror.org/04h1h0y33"},{"id":"https://openalex.org/F4320324228","display_name":"Centre de Coop\u00e9ration Internationale en Recherche Agronomique pour le D\u00e9veloppement","ror":"https://ror.org/05kpkpg04"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1592953423","https://openalex.org/W1986771430","https://openalex.org/W1991775639","https://openalex.org/W2050252739","https://openalex.org/W2056282729","https://openalex.org/W2078985447","https://openalex.org/W2085288093","https://openalex.org/W2097272115","https://openalex.org/W2101748122","https://openalex.org/W2110243315","https://openalex.org/W2113688755","https://openalex.org/W2117026615","https://openalex.org/W2119996662","https://openalex.org/W2144896701","https://openalex.org/W2163384494","https://openalex.org/W2169087452","https://openalex.org/W2169266507","https://openalex.org/W2171284705","https://openalex.org/W2492394917","https://openalex.org/W4252699458","https://openalex.org/W6635334743"],"related_works":["https://openalex.org/W3006474185","https://openalex.org/W2483195039","https://openalex.org/W2611761074","https://openalex.org/W2297259345","https://openalex.org/W2599380816","https://openalex.org/W4387829462","https://openalex.org/W2100507255","https://openalex.org/W3023827659","https://openalex.org/W2099086483","https://openalex.org/W2041338505"],"abstract_inverted_index":{"Forest":[0],"biomass":[1,25,32],"retrieval":[2],"using":[3],"P-band":[4],"synthetic":[5],"aperture":[6],"radar":[7,50],"(SAR)":[8],"data":[9,134],"has":[10],"been":[11],"studied":[12],"during":[13],"the":[14,47,75,79,101,111,119,149,155,159,162],"past":[15],"two":[16],"decades.":[17],"However,":[18],"much":[19],"progress":[20],"remains":[21],"necessary":[22],"to":[23,52,66,94,106,125],"recover":[24],"for":[26],"tropical":[27,137],"dense":[28],"forests,":[29],"where":[30],"above-ground":[31],"(AGB)":[33],"values":[34],"are":[35,64],"often":[36],"found":[37],"between":[38,146],"250":[39],"and":[40,56,71,109,148],"400":[41],"t/ha.":[42],"In":[43,82],"this":[44,83],"high":[45],"range,":[46],"sensitivity":[48],"of":[49,161],"backscatter":[51,89,114],"AGB":[53,147],"is":[54,78,129],"small":[55],"can":[57],"be":[58],"obscured":[59],"by":[60],"disturbing":[61],"effects.":[62],"These":[63],"related":[65,105],"measurement":[67],"errors,":[68],"forest":[69,138],"characteristics,":[70],"environment":[72],"variations,":[73],"but":[74],"most":[76],"important":[77],"underlying":[80],"topography.":[81],"work,":[84],"we":[85],"develop":[86],"a":[87],"new":[88],"coefficient":[90],"called":[91],"t0in":[92],"order":[93],"minimize":[95],"topography":[96],"effects,":[97],"based":[98,153],"on":[99,131,154],"1)":[100],"medium":[102],"nonreflection":[103],"symmetry":[104],"azimuth":[107],"slopes":[108],"2)":[110],"change":[112,120],"in":[113,121,140],"angular":[115],"variation":[116],"coming":[117],"with":[118],"scattering":[122],"mechanisms":[123],"due":[124],"slopes.":[126],"The":[127],"method":[128],"tested":[130],"TropiSAR":[132],"campaign":[133],"acquired":[135],"over":[136],"plots":[139],"French":[141],"Guiana.":[142],"Using":[143],"power":[144],"laws":[145],"backscattering":[150],"coefficients,":[151],"results":[152],"correlation":[156],"analysis":[157],"demonstrate":[158],"relevance":[160],"proposed":[163],"method.":[164]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":6},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":7},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3}],"updated_date":"2026-08-27T14:10:00.468798","created_date":"2025-10-10T00:00:00"}
