{"id":"https://openalex.org/W2079733808","doi":"https://doi.org/10.1109/igarss.2009.5418153","title":"Sea ice co ncentration and type analysis from dual pol Radarsat-2 and Modis images in the Baltic Sea","display_name":"Sea ice co ncentration and type analysis from dual pol Radarsat-2 and Modis images in the Baltic Sea","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W2079733808","doi":"https://doi.org/10.1109/igarss.2009.5418153","mag":"2079733808"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2009.5418153","doi":"https://doi.org/10.1109/igarss.2009.5418153","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2009.5418153","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"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"},"volume":null,"type":"conference-paper","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/A5033799176","display_name":"Rivo Uiboupin","orcid":"https://orcid.org/0000-0002-6693-0441","observed_orcids":["https://orcid.org/0000-0002-6693-0441"]},"institutions":[{"id":"https://openalex.org/I111112146","display_name":"Tallinn University of Technology","ror":"https://ror.org/0443cwa12","country_code":"EE","type":"education","lineage":["https://openalex.org/I111112146"]}],"countries":["EE"],"is_corresponding":false,"raw_author_name":"Rivo Uiboupin","raw_affiliation_strings":["Marine Systems Institute, Tallinn University of Technology, Tallinn, Estonia","Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Marine Systems Institute, Tallinn University of Technology, Tallinn, Estonia","institution_ids":["https://openalex.org/I111112146"]},{"raw_affiliation_string":"Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia","institution_ids":["https://openalex.org/I111112146"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020703312","display_name":"Liis Sipelgas","orcid":"https://orcid.org/0000-0003-1751-9522","observed_orcids":["https://orcid.org/0000-0003-1751-9522"]},"institutions":[{"id":"https://openalex.org/I111112146","display_name":"Tallinn University of Technology","ror":"https://ror.org/0443cwa12","country_code":"EE","type":"education","lineage":["https://openalex.org/I111112146"]}],"countries":["EE"],"is_corresponding":false,"raw_author_name":"Liis Sipelgas","raw_affiliation_strings":["Marine Systems Institute, Tallinn University of Technology, Tallinn, Estonia","Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Marine Systems Institute, Tallinn University of Technology, Tallinn, Estonia","institution_ids":["https://openalex.org/I111112146"]},{"raw_affiliation_string":"Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia","institution_ids":["https://openalex.org/I111112146"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091134889","display_name":"Urmas Raudsepp","orcid":"https://orcid.org/0000-0002-1037-5311","observed_orcids":["https://orcid.org/0000-0002-1037-5311"]},"institutions":[{"id":"https://openalex.org/I111112146","display_name":"Tallinn University of Technology","ror":"https://ror.org/0443cwa12","country_code":"EE","type":"education","lineage":["https://openalex.org/I111112146"]}],"countries":["EE"],"is_corresponding":false,"raw_author_name":"Urmas Raudsepp","raw_affiliation_strings":["Marine Systems Institute, Tallinn University of Technology, Tallinn, Estonia","Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Marine Systems Institute, Tallinn University of Technology, Tallinn, Estonia","institution_ids":["https://openalex.org/I111112146"]},{"raw_affiliation_string":"Marine Systems Institute at Tallinn University of Technology, Akadeemia Rd 2IB, Tallinn 12618, Estonia","institution_ids":["https://openalex.org/I111112146"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I111112146"],"apc_list":null,"apc_paid":null,"fwci":3.926,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.89371257,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":94},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11459","display_name":"Arctic and Antarctic ice dynamics","score":0.9937000274658203,"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"}},"topics":[{"id":"https://openalex.org/T11459","display_name":"Arctic and Antarctic ice dynamics","score":0.9937000274658203,"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/T10644","display_name":"Cryospheric studies and observations","score":0.001500000013038516,"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":0.0010000000474974513,"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/sea-ice-classification","display_name":"sea ice classification","score":0.9190000295639038},{"id":"https://openalex.org/keywords/sea-ice-concentration","display_name":"sea ice concentration","score":0.972000002861023},{"id":"https://openalex.org/keywords/baltic-sea","display_name":"Baltic Sea","score":0.5849999785423279},{"id":"https://openalex.org/keywords/radarsat-2","display_name":"RADARSAT-2","score":0.9100000262260437},{"id":"https://openalex.org/keywords/dual-polarization-sar","display_name":"dual-polarization SAR","score":0.8100000023841858},{"id":"https://openalex.org/keywords/modis","display_name":"MODIS","score":0.8339999914169312},{"id":"https://openalex.org/keywords/shannon-entropy","display_name":"Shannon entropy","score":0.8579999804496765},{"id":"https://openalex.org/keywords/landfast-sea-ice","display_name":"fast ice","score":0.8560000061988831},{"id":"https://openalex.org/keywords/coastal-sea-ice","display_name":"coastal sea ice","score":0.6079999804496765},{"id":"https://openalex.org/keywords/histogram-analysis","display_name":"histogram analysis","score":0.5730000138282776}],"concepts":[{"id":"https://openalex.org/C136894858","wikidata":"https://www.wikidata.org/wiki/Q213926","display_name":"Sea ice","level":2,"score":0.6821462512016296},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.5936916470527649},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5793943405151367},{"id":"https://openalex.org/C194520297","wikidata":"https://www.wikidata.org/wiki/Q7440064","display_name":"Sea ice concentration","level":5,"score":0.4994785785675049},{"id":"https://openalex.org/C149767477","wikidata":"https://www.wikidata.org/wiki/Q7440066","display_name":"Sea ice thickness","level":4,"score":0.4018915891647339},{"id":"https://openalex.org/C161798024","wikidata":"https://www.wikidata.org/wiki/Q3651008","display_name":"Arctic ice pack","level":3,"score":0.38885778188705444},{"id":"https://openalex.org/C49204034","wikidata":"https://www.wikidata.org/wiki/Q52139","display_name":"Climatology","level":1,"score":0.3790993392467499}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2009.5418153","doi":"https://doi.org/10.1109/igarss.2009.5418153","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2009.5418153","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"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":[],"sustainable_development_goals_aurora":[{"display_name":"Life below water","id":"https://metadata.un.org/sdg/14","score":0.8700000047683716}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1681012644","https://openalex.org/W1967791380","https://openalex.org/W1999695055","https://openalex.org/W2004115212","https://openalex.org/W2010319424","https://openalex.org/W2010946568","https://openalex.org/W2013414210","https://openalex.org/W2078985447","https://openalex.org/W2413796965","https://openalex.org/W2549870609","https://openalex.org/W2606306511"],"related_works":["https://openalex.org/W4221057659","https://openalex.org/W206690607","https://openalex.org/W4240873802","https://openalex.org/W2486603219","https://openalex.org/W2584433234","https://openalex.org/W1981028522","https://openalex.org/W3147447286","https://openalex.org/W2922651963","https://openalex.org/W2138002925","https://openalex.org/W1991434658"],"abstract_inverted_index":{"A":[0],"sea":[1],"ice":[2,47,53,59,81,85,90,108],"classification":[3,8,33,76],"technique":[4],"is":[5],"introduced.":[6],"The":[7,32,74,95,110],"was":[9,37,93,106,113],"performed":[10,70],"on":[11,34,39,45,71],"Radarsat-2":[12],"dual":[13],"polarization":[14],"image":[15,36,99],"(07.02.2009)":[16],"and":[17,60,83],"MODIS":[18,72],"images":[19],"(09.02.2009)":[20],"that":[21,43,51],"covered":[22],"coastal":[23],"area":[24],"in":[25],"the":[26],"western":[27],"part":[28],"of":[29,97],"Baltic":[30],"Sea.":[31],"SAR":[35,117],"based":[38],"Shannon":[40],"entropy":[41],"differences":[42],"occur":[44],"various":[46],"types.":[48],"Analysis":[49],"showed":[50],"four":[52],"types":[54],"(water,":[55],"fast":[56,84],"ice,":[57],"ridged":[58,80],"deformed":[61],"ice)":[62],"were":[63,69],"identifiable.":[64],"Also":[65],"two":[66],"independent":[67],"analysis":[68,89,96],"image.":[73],"spectral":[75],"enabled":[77,100],"to":[78,101],"separate":[79],"regions":[82,103],"areas.":[86],"Using":[87],"histogram":[88],"concentration":[91],"map":[92],"created.":[94],"Modis":[98],"identify":[102],"where":[104],"water":[105],"covering":[107],"surface.":[109],"same":[111],"phenomena":[112],"also":[114],"detected":[115],"from":[116],"data.":[118]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-10-05T09:50:58.205359","created_date":"2025-10-10T00:00:00"}
