{"id":"https://openalex.org/W1524956383","doi":"https://doi.org/10.1109/igarss.2004.1370167","title":"Soil moisture retrieval from heterogeneous surfaces by 1.4 GHz multi-angle smos observations using 'a Priori knowledge' of surface cover fractions","display_name":"Soil moisture retrieval from heterogeneous surfaces by 1.4 GHz multi-angle smos observations using 'a Priori knowledge' of surface cover fractions","publication_year":2004,"publication_date":"2004-12-23","ids":{"openalex":"https://openalex.org/W1524956383","doi":"https://doi.org/10.1109/igarss.2004.1370167","mag":"1524956383"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2004.1370167","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2004.1370167","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004","raw_type":"proceedings-article"},"type":"preprint","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/A5107825896","display_name":"A.A. Van de Griend","orcid":null},"institutions":[{"id":"https://openalex.org/I865915315","display_name":"Vrije Universiteit Amsterdam","ror":"https://ror.org/008xxew50","country_code":"NL","type":"education","lineage":["https://openalex.org/I865915315"]}],"countries":["NL"],"is_corresponding":true,"raw_author_name":"A.A. Van de Griend","raw_affiliation_strings":["Department of Hydrology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands"],"affiliations":[{"raw_affiliation_string":"Department of Hydrology, Vrije Universiteit Amsterdam, Amsterdam, Netherlands","institution_ids":["https://openalex.org/I865915315"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043940512","display_name":"Jean\u2010Pierre Wigneron","orcid":"https://orcid.org/0000-0001-5345-3618"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J.-P. Wigneron","raw_affiliation_strings":["Unit\u00e9 de Bioclimatologie, INRA, Villenave-D'Ornon, France"],"affiliations":[{"raw_affiliation_string":"Unit\u00e9 de Bioclimatologie, INRA, Villenave-D'Ornon, France","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5107169566","display_name":"Philippe Waldteufel","orcid":"https://orcid.org/0000-0002-0795-809X"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"funder","lineage":["https://openalex.org/I1294671590"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"P. Waldteufel","raw_affiliation_strings":["Service dA\u00e9ronomie, IPSL(CNRS), Velizy-Villacoublay, France"],"affiliations":[{"raw_affiliation_string":"Service dA\u00e9ronomie, IPSL(CNRS), Velizy-Villacoublay, France","institution_ids":["https://openalex.org/I1294671590"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5107825896"],"corresponding_institution_ids":["https://openalex.org/I865915315"],"apc_list":null,"apc_paid":null,"fwci":0.71359974,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.70903984,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"7","issue":null,"first_page":"4552","last_page":"4555"},"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/T11234","display_name":"Precipitation Measurement and Analysis","score":0.9975000023841858,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.986299991607666,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/emissivity","display_name":"Emissivity","score":0.8223558664321899},{"id":"https://openalex.org/keywords/a-priori-and-a-posteriori","display_name":"A priori and a posteriori","score":0.7579623460769653},{"id":"https://openalex.org/keywords/water-content","display_name":"Water content","score":0.698147177696228},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.6663920879364014},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.651660144329071},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6324082612991333},{"id":"https://openalex.org/keywords/radiometry","display_name":"Radiometry","score":0.435139536857605},{"id":"https://openalex.org/keywords/soil-science","display_name":"Soil science","score":0.4253585934638977},{"id":"https://openalex.org/keywords/moisture","display_name":"Moisture","score":0.423242449760437},{"id":"https://openalex.org/keywords/dielectric","display_name":"Dielectric","score":0.4106155037879944},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.3032592535018921},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.26113826036453247},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.18521279096603394},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.15401795506477356},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1133924126625061},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10136264562606812}],"concepts":[{"id":"https://openalex.org/C163651212","wikidata":"https://www.wikidata.org/wiki/Q899670","display_name":"Emissivity","level":2,"score":0.8223558664321899},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.7579623460769653},{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.698147177696228},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6663920879364014},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.651660144329071},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6324082612991333},{"id":"https://openalex.org/C87456703","wikidata":"https://www.wikidata.org/wiki/Q247760","display_name":"Radiometry","level":2,"score":0.435139536857605},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.4253585934638977},{"id":"https://openalex.org/C176864760","wikidata":"https://www.wikidata.org/wiki/Q217651","display_name":"Moisture","level":2,"score":0.423242449760437},{"id":"https://openalex.org/C133386390","wikidata":"https://www.wikidata.org/wiki/Q184996","display_name":"Dielectric","level":2,"score":0.4106155037879944},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3032592535018921},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.26113826036453247},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.18521279096603394},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.15401795506477356},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1133924126625061},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10136264562606812},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.0},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2004.1370167","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2004.1370167","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.699999988079071,"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2044927495","https://openalex.org/W2067386493","https://openalex.org/W2077133120","https://openalex.org/W2087070363","https://openalex.org/W2132549823","https://openalex.org/W2141587399","https://openalex.org/W2774860291","https://openalex.org/W6746989378"],"related_works":["https://openalex.org/W2068804904","https://openalex.org/W2080140811","https://openalex.org/W2899172485","https://openalex.org/W2326191128","https://openalex.org/W2294087764","https://openalex.org/W4237339516","https://openalex.org/W2039406532","https://openalex.org/W1996544059","https://openalex.org/W2391376341","https://openalex.org/W4243383210"],"abstract_inverted_index":{"A":[0],"recently":[1],"published":[2],"feasibility":[3],"study":[4,79],"on":[5,32,139],"the":[6,33,44,53,73,88,93,96,101,105,113,129,140],"consequences":[7],"of":[8,24,35,47,64,72,83,87,95,104,125],"surface":[9,65,132],"heterogeneity":[10],"for":[11,52,116],"parameter":[12],"retrieval":[13,34,41,94,141],"from":[14],"multi-angle":[15],"L-band":[16],"SMOS":[17,54],"observations":[18],"indicated":[19],"that":[20,81,122],"even":[21],"small":[22,137],"portions":[23],"forest":[25,75,90],"(>10%)":[26],"may":[27],"have":[28],"a":[29,61,69,84,109,123,135],"dramatic":[30],"effect":[31,138],"pixel-average":[36],"soil":[37,97,102],"moisture,":[38],"resulting":[39],"in":[40,128],"errors":[42],"exceeding":[43],"required":[45],"precision":[46,110,142],"4%":[48],"by":[49],"volume":[50],"formulated":[51],"mission.":[55],"These":[56],"retrievals":[57],"were":[58],"done":[59],"without":[60,68],"priori":[62,70,85],"knowledge":[63,71,86],"temperature":[66,133],"and":[67],"within-pixel":[74,89],"cover":[76],"fraction.":[77],"This":[78],"demonstrates":[80],"inclusion":[82],"fraction":[91],"allows":[92],"dielectric":[98],"constant":[99],"(or":[100],"emissivity)":[103],"non-forested":[106],"area":[107],"with":[108],"better":[111],"than":[112],"requirement":[114],"defined":[115],"SMOS.":[117],"It":[118],"was":[119],"also":[120],"found":[121],"bias":[124],"plusmn2":[126],"K":[127],"assumed":[130],"thermodynamic":[131],"has":[134],"relatively":[136]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}