{"id":"https://openalex.org/W2171529574","doi":"https://doi.org/10.1109/igarss.2002.1025147","title":"Assimilation of space-borne microwave radiometer and discrete ground-based data in snow depth mapping: a case study for northern Eurasia","display_name":"Assimilation of space-borne microwave radiometer and discrete ground-based data in snow depth mapping: a case study for northern Eurasia","publication_year":2003,"publication_date":"2003-06-25","ids":{"openalex":"https://openalex.org/W2171529574","doi":"https://doi.org/10.1109/igarss.2002.1025147","mag":"2171529574"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2002.1025147","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2002.1025147","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},"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/A5049229557","display_name":"Jouni Pulliainen","orcid":"https://orcid.org/0000-0003-1157-2920"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. Pulliainen","raw_affiliation_strings":["Laboratory of Space Technology, Helsinki University of Technology, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory of Space Technology, Helsinki University of Technology, Finland","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047279751","display_name":"Matias Takala","orcid":"https://orcid.org/0000-0003-2083-2528"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. Takala","raw_affiliation_strings":["Laboratory of Space Technology, Helsinki University of Technology, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory of Space Technology, Helsinki University of Technology, Finland","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110907633","display_name":"M. Hallikainen","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. Hallikainen","raw_affiliation_strings":["Laboratory of Space Technology, Helsinki University of Technology, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory of Space Technology, Helsinki University of Technology, Finland","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"1","issue":null,"first_page":"689","last_page":"691"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10644","display_name":"Cryospheric studies and observations","score":1.0,"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/T10644","display_name":"Cryospheric studies and observations","score":1.0,"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/T11333","display_name":"Climate change and permafrost","score":0.9995999932289124,"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/T11459","display_name":"Arctic and Antarctic ice dynamics","score":0.9986000061035156,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/brightness-temperature","display_name":"Brightness temperature","score":0.6854504346847534},{"id":"https://openalex.org/keywords/snow","display_name":"Snow","score":0.68404620885849},{"id":"https://openalex.org/keywords/data-assimilation","display_name":"Data assimilation","score":0.661083459854126},{"id":"https://openalex.org/keywords/radiometer","display_name":"Radiometer","score":0.64892578125},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.620186984539032},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5403422117233276},{"id":"https://openalex.org/keywords/arctic","display_name":"Arctic","score":0.5184645056724548},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.5112559795379639},{"id":"https://openalex.org/keywords/brightness","display_name":"Brightness","score":0.5082013607025146},{"id":"https://openalex.org/keywords/microwave-radiometer","display_name":"Microwave radiometer","score":0.46481451392173767},{"id":"https://openalex.org/keywords/inversion","display_name":"Inversion (geology)","score":0.45538923144340515},{"id":"https://openalex.org/keywords/taiga","display_name":"Taiga","score":0.44665074348449707},{"id":"https://openalex.org/keywords/climatology","display_name":"Climatology","score":0.33263278007507324},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.3039785325527191},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.219221293926239}],"concepts":[{"id":"https://openalex.org/C53802167","wikidata":"https://www.wikidata.org/wiki/Q4538627","display_name":"Brightness temperature","level":3,"score":0.6854504346847534},{"id":"https://openalex.org/C197046000","wikidata":"https://www.wikidata.org/wiki/Q7561","display_name":"Snow","level":2,"score":0.68404620885849},{"id":"https://openalex.org/C24552861","wikidata":"https://www.wikidata.org/wiki/Q2670177","display_name":"Data assimilation","level":2,"score":0.661083459854126},{"id":"https://openalex.org/C120189094","wikidata":"https://www.wikidata.org/wiki/Q850281","display_name":"Radiometer","level":2,"score":0.64892578125},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.620186984539032},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5403422117233276},{"id":"https://openalex.org/C518008717","wikidata":"https://www.wikidata.org/wiki/Q25322","display_name":"Arctic","level":2,"score":0.5184645056724548},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.5112559795379639},{"id":"https://openalex.org/C125245961","wikidata":"https://www.wikidata.org/wiki/Q221656","display_name":"Brightness","level":2,"score":0.5082013607025146},{"id":"https://openalex.org/C96960616","wikidata":"https://www.wikidata.org/wiki/Q3814470","display_name":"Microwave radiometer","level":3,"score":0.46481451392173767},{"id":"https://openalex.org/C1893757","wikidata":"https://www.wikidata.org/wiki/Q3653001","display_name":"Inversion (geology)","level":3,"score":0.45538923144340515},{"id":"https://openalex.org/C87621631","wikidata":"https://www.wikidata.org/wiki/Q69564","display_name":"Taiga","level":2,"score":0.44665074348449707},{"id":"https://openalex.org/C49204034","wikidata":"https://www.wikidata.org/wiki/Q52139","display_name":"Climatology","level":1,"score":0.33263278007507324},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.3039785325527191},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.219221293926239},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C109007969","wikidata":"https://www.wikidata.org/wiki/Q749565","display_name":"Structural basin","level":2,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C97137747","wikidata":"https://www.wikidata.org/wiki/Q38112","display_name":"Forestry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2002.1025147","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2002.1025147","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","score":0.5,"display_name":"Life in Land"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W2035466844","https://openalex.org/W2117913235","https://openalex.org/W2132468394"],"related_works":["https://openalex.org/W2381259876","https://openalex.org/W2016007472","https://openalex.org/W2360231461","https://openalex.org/W2413930784","https://openalex.org/W2140108161","https://openalex.org/W2005776842","https://openalex.org/W1983957298","https://openalex.org/W2165236048","https://openalex.org/W2013323393","https://openalex.org/W2109355119"],"abstract_inverted_index":{"A":[0],"new":[1],"technique":[2,29],"to":[3,18,72],"retrieve":[4],"snow":[5],"depth":[6],"(SD)":[7],"information":[8],"by":[9],"assimilating":[10],"time":[11,67],"series":[12],"of":[13,36,54,75,89,98],"passive":[14],"microwave":[15],"radiometer":[16],"data":[17,43,84],"SD":[19,91,102],"estimates":[20,103],"interpolated":[21,104],"from":[22,59,69,105],"discrete":[23,107],"ground-based":[24,108],"observations":[25,58],"is":[26,30,45],"presented.":[27],"The":[28,42,78],"based":[31],"on":[32],"Bayesian":[33],"(statistical)":[34],"inversion":[35],"an":[37],"analytical":[38],"brightness":[39],"temperature":[40],"model.":[41],"assimilation":[44,85],"demonstrated":[46],"for":[47],"the":[48,73,83,87,96,101],"boreal":[49],"forests":[50],"and":[51],"sub-arctic":[52],"regions":[53],"Eurasia":[55],"using":[56,100],"SSM/I":[57],"22":[60],"test":[61],"stations":[62],"around":[63],"Russia,":[64],"covering":[65],"a":[66,106],"period":[68],"November":[70],"1993":[71],"beginning":[74],"April":[76],"1994.":[77],"obtained":[79],"results":[80],"indicate":[81],"that":[82],"improves":[86],"performance":[88],"regional":[90],"estimation":[92],"when":[93],"compared":[94],"with":[95],"case":[97],"only":[99],"observation":[109],"network.":[110]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
