{"id":"https://openalex.org/W2150759427","doi":"https://doi.org/10.1109/igarss.2009.5417877","title":"PALSAR CALVAL updated 2009 and change detections at the forest and the Polar regions","display_name":"PALSAR CALVAL updated 2009 and change detections at the forest and the Polar regions","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W2150759427","doi":"https://doi.org/10.1109/igarss.2009.5417877","mag":"2150759427"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2009.5417877","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2009.5417877","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Geoscience and Remote Sensing Symposium","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/A5016225372","display_name":"Masanobu Shimada","orcid":"https://orcid.org/0000-0001-8981-6679"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Masanobu Shimada","raw_affiliation_strings":["Uchu Koku Kenkyu Kaihatsu Kiko, Chofu, Tokyo, JP"],"affiliations":[{"raw_affiliation_string":"Uchu Koku Kenkyu Kaihatsu Kiko, Chofu, Tokyo, JP","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017250031","display_name":"Osamu Isoguchi","orcid":"https://orcid.org/0000-0002-9614-3510"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Osamu Isoguchi","raw_affiliation_strings":["Uchu Koku Kenkyu Kaihatsu Kiko, Chofu, Tokyo, JP"],"affiliations":[{"raw_affiliation_string":"Uchu Koku Kenkyu Kaihatsu Kiko, Chofu, Tokyo, JP","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003863167","display_name":"Takeo Tadono","orcid":"https://orcid.org/0000-0003-4313-5645"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Takeo Tadono","raw_affiliation_strings":["Uchu Koku Kenkyu Kaihatsu Kiko, Chofu, Tokyo, JP"],"affiliations":[{"raw_affiliation_string":"Uchu Koku Kenkyu Kaihatsu Kiko, Chofu, Tokyo, JP","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5016225372"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.12111161,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"47","issue":null,"first_page":"III","last_page":"765"},"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":0.9169999957084656,"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":0.9169999957084656,"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/polar","display_name":"Polar","score":0.6788211464881897},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5807823538780212},{"id":"https://openalex.org/keywords/ground-truth","display_name":"Ground truth","score":0.5803318023681641},{"id":"https://openalex.org/keywords/change-detection","display_name":"Change detection","score":0.4729342758655548},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.45265525579452515},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.4430271089076996},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.3983538746833801},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.37713468074798584},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.3479037284851074},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.32364100217819214},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.26559895277023315},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.16080620884895325},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12471923232078552},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09382301568984985},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.09336286783218384},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.08036577701568604}],"concepts":[{"id":"https://openalex.org/C29705727","wikidata":"https://www.wikidata.org/wiki/Q294562","display_name":"Polar","level":2,"score":0.6788211464881897},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5807823538780212},{"id":"https://openalex.org/C146849305","wikidata":"https://www.wikidata.org/wiki/Q370766","display_name":"Ground truth","level":2,"score":0.5803318023681641},{"id":"https://openalex.org/C203595873","wikidata":"https://www.wikidata.org/wiki/Q25389927","display_name":"Change detection","level":2,"score":0.4729342758655548},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.45265525579452515},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.4430271089076996},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.3983538746833801},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.37713468074798584},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3479037284851074},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.32364100217819214},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.26559895277023315},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.16080620884895325},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12471923232078552},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09382301568984985},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.09336286783218384},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.08036577701568604},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2009.5417877","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2009.5417877","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life below water","score":0.44999998807907104,"id":"https://metadata.un.org/sdg/14"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W2141607694","https://openalex.org/W2944379566","https://openalex.org/W6999290439"],"related_works":["https://openalex.org/W2568858292","https://openalex.org/W1515964938","https://openalex.org/W2389381914","https://openalex.org/W4295532600","https://openalex.org/W2063823869","https://openalex.org/W2047973478","https://openalex.org/W2067569035","https://openalex.org/W2376528221","https://openalex.org/W196800607","https://openalex.org/W3177346028"],"abstract_inverted_index":{"This":[0],"paper":[1],"describes":[2],"the":[3,7,17,22,37,48,53,68,71,74],"updated":[4],"results":[5,28],"of":[6,70],"PALSAR":[8,18,31,43],"CALVAL":[9],"activity":[10],"conducted":[11],"for":[12],"last":[13],"three":[14],"years":[15],"using":[16],"calibration":[19],"archives":[20],"and":[21,39,52,61],"connected":[23],"ground":[24],"truth":[25],"data.":[26],"The":[27],"show":[29],"that":[30],"has":[32],"pretty":[33],"good":[34],"stabilities":[35],"on":[36,47],"geometric":[38],"radiometric":[40],"accuracies.":[41],"Using":[42],"data,":[44],"change":[45,69],"detection":[46],"forest":[49],"in":[50,65],"Indonesia":[51],"polar":[54],"regions":[55],"(North":[56],"Pole":[57],"region,":[58,60],"Antarctica":[59],"Greenland":[62],"region)":[63],"are":[64],"progress":[66],"tracking":[67],"sigma-naught":[72],"and/or":[73],"phases.":[75]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
