{"id":"https://openalex.org/W1967709749","doi":"https://doi.org/10.1109/igarss.2015.7326698","title":"Agricultural field observation by space and airborne polarimetric L-band SAR data","display_name":"Agricultural field observation by space and airborne polarimetric L-band SAR data","publication_year":2015,"publication_date":"2015-07-01","ids":{"openalex":"https://openalex.org/W1967709749","doi":"https://doi.org/10.1109/igarss.2015.7326698","mag":"1967709749"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2015.7326698","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2015.7326698","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","raw_type":"proceedings-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/A5049983403","display_name":"Chinatsu Yonezawa","orcid":"https://orcid.org/0000-0001-9791-2206"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Chinatsu Yonezawa","raw_affiliation_strings":["Graduate School of Agricultural Science, Tohoku University","Graduate school of Agricultural Science, Tohoku University"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agricultural Science, Tohoku University","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Graduate school of Agricultural Science, Tohoku University","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101986414","display_name":"Manabu Watanabe","orcid":"https://orcid.org/0000-0002-1130-9420"},"institutions":[{"id":"https://openalex.org/I2800865746","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Manabu Watanabe","raw_affiliation_strings":["Japan Aerospace Exploration Agency","Japan Aerospace  Exploration Agency"],"affiliations":[{"raw_affiliation_string":"Japan Aerospace Exploration Agency","institution_ids":["https://openalex.org/I2800865746"]},{"raw_affiliation_string":"Japan Aerospace  Exploration Agency","institution_ids":["https://openalex.org/I2800865746"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5049983403"],"corresponding_institution_ids":["https://openalex.org/I201537933"],"apc_list":null,"apc_paid":null,"fwci":2.4324,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.89488427,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"3985","last_page":"3988"},"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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9779000282287598,"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/T11312","display_name":"Soil Moisture and Remote Sensing","score":0.9700000286102295,"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/paddy-field","display_name":"Paddy field","score":0.7739693522453308},{"id":"https://openalex.org/keywords/scattering","display_name":"Scattering","score":0.623560905456543},{"id":"https://openalex.org/keywords/polarimetry","display_name":"Polarimetry","score":0.590067982673645},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5735631585121155},{"id":"https://openalex.org/keywords/l-band","display_name":"L band","score":0.5427806973457336},{"id":"https://openalex.org/keywords/decomposition","display_name":"Decomposition","score":0.5211767554283142},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.5192089676856995},{"id":"https://openalex.org/keywords/eigenvalues-and-eigenvectors","display_name":"Eigenvalues and eigenvectors","score":0.46079307794570923},{"id":"https://openalex.org/keywords/c-band","display_name":"C band","score":0.43526729941368103},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.427686870098114},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.36979612708091736},{"id":"https://openalex.org/keywords/agronomy","display_name":"Agronomy","score":0.3303420841693878},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2736528813838959},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.2016545534133911},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.11355498433113098},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.07854002714157104}],"concepts":[{"id":"https://openalex.org/C85582077","wikidata":"https://www.wikidata.org/wiki/Q842623","display_name":"Paddy field","level":2,"score":0.7739693522453308},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.623560905456543},{"id":"https://openalex.org/C28493345","wikidata":"https://www.wikidata.org/wiki/Q899381","display_name":"Polarimetry","level":3,"score":0.590067982673645},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5735631585121155},{"id":"https://openalex.org/C133969743","wikidata":"https://www.wikidata.org/wiki/Q2362353","display_name":"L band","level":2,"score":0.5427806973457336},{"id":"https://openalex.org/C124681953","wikidata":"https://www.wikidata.org/wiki/Q339062","display_name":"Decomposition","level":2,"score":0.5211767554283142},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.5192089676856995},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.46079307794570923},{"id":"https://openalex.org/C63944557","wikidata":"https://www.wikidata.org/wiki/Q27786604","display_name":"C band","level":2,"score":0.43526729941368103},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.427686870098114},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.36979612708091736},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.3303420841693878},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2736528813838959},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.2016545534133911},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.11355498433113098},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.07854002714157104},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2015.7326698","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2015.7326698","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","display_name":"Zero hunger","score":0.44999998807907104}],"awards":[],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"},{"id":"https://openalex.org/F4320334900","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W2041241239","https://openalex.org/W2078985447","https://openalex.org/W2080672099","https://openalex.org/W2097272115","https://openalex.org/W2097419478","https://openalex.org/W2105954673","https://openalex.org/W2111300010","https://openalex.org/W2133989913","https://openalex.org/W2134778497","https://openalex.org/W2141424348","https://openalex.org/W2146962848","https://openalex.org/W3151413619","https://openalex.org/W6793311061"],"related_works":["https://openalex.org/W2986946135","https://openalex.org/W2160659837","https://openalex.org/W2171529411","https://openalex.org/W52647015","https://openalex.org/W2100277028","https://openalex.org/W1995803540","https://openalex.org/W2167226100","https://openalex.org/W1999573859","https://openalex.org/W4386631163","https://openalex.org/W4312560350"],"abstract_inverted_index":{"Full":[0],"polarimetric":[1],"space-":[2],"and":[3,48,85,98,119],"air-borne":[4],"L-band":[5,125],"SAR":[6,126],"data":[7,121],"acquired":[8],"on":[9],"the":[10,24,57,110],"same":[11],"day":[12],"were":[13,18,28,52,101,115],"analyzed.":[14],"The":[15],"target":[16],"areas":[17],"agricultural":[19],"fields,":[20,56,87],"including":[21,65],"paddy":[22,39,55,67,74,78],"in":[23,42,79,92,109],"maturation":[25],"stage,":[26],"that":[27],"severely":[29],"damaged":[30],"by":[31,103],"a":[32,93,104],"tsunami":[33],"three":[34],"years":[35],"earlier.":[36],"Lodging":[37],"of":[38,106],"was":[40,60,90],"found":[41,116],"some":[43],"fields.":[44],"Three-and":[45],"four-component":[46,94],"decomposition":[47,50],"eigenvalue-eigenvector":[49,111],"analysis":[51],"performed.":[53],"On":[54,82],"dominant":[58,91],"component":[59],"double-bounce":[61],"scattering.":[62],"Paddy":[63,96],"fields":[64,75,100],"lodged":[66,77],"showed":[68],"larger":[69],"volume":[70],"scattering":[71,89],"ratio":[72],"than":[73],"without":[76],"Pi-SAR-L2":[80,120],"data.":[81],"soybean,":[83],"weed,":[84],"bare-soil":[86],"surface":[88],"decomposition.":[95,112],"field":[97,131],"other":[99],"separated":[102],"threshold":[105],"alpha":[107],"angle":[108],"Subtle":[113],"differences":[114],"although":[117],"PALSAR-2":[118],"behaved":[122],"almost":[123],"similarly.":[124],"is":[127],"suitable":[128],"for":[129],"rice":[130],"extraction":[132],"during":[133],"this":[134],"season.":[135]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}