{"id":"https://openalex.org/W2802142729","doi":"https://doi.org/10.1109/jstars.2018.2815681","title":"Snow Depth Retrieval Based on a Multifrequency Passive Microwave Unmixing Method for Saline-Alkaline Land in the Western Jilin Province of China","display_name":"Snow Depth Retrieval Based on a Multifrequency Passive Microwave Unmixing Method for Saline-Alkaline Land in the Western Jilin Province of China","publication_year":2018,"publication_date":"2018-04-25","ids":{"openalex":"https://openalex.org/W2802142729","doi":"https://doi.org/10.1109/jstars.2018.2815681","mag":"2802142729"},"language":"en","primary_location":{"id":"doi:10.1109/jstars.2018.2815681","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2018.2815681","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"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/A5036910081","display_name":"Lingjia Gu","orcid":"https://orcid.org/0000-0002-4909-2263"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lingjia Gu","raw_affiliation_strings":["College of Electronic Science & Engineering, Jilin University, Changchun, China"],"raw_orcid":"https://orcid.org/0000-0002-4909-2263","affiliations":[{"raw_affiliation_string":"College of Electronic Science & Engineering, Jilin University, Changchun, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102373449","display_name":"Ruizhi Ren","orcid":null},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruizhi Ren","raw_affiliation_strings":["College of Electronic Science & Engineering, Jilin University, Changchun, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic Science & Engineering, Jilin University, Changchun, China","institution_ids":["https://openalex.org/I194450716"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100725268","display_name":"Xiaofeng Li","orcid":"https://orcid.org/0000-0002-7302-8042"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210101301","display_name":"Northeast Institute of Geography and Agroecology","ror":"https://ror.org/01a9z1q73","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210101301"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaofeng Li","raw_affiliation_strings":["Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210101301"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100643412","display_name":"Kai Zhao","orcid":"https://orcid.org/0000-0002-3613-1913"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210101301","display_name":"Northeast Institute of Geography and Agroecology","ror":"https://ror.org/01a9z1q73","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210101301"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kai Zhao","raw_affiliation_strings":["Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210101301"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1250,"currency":"USD","value_usd":1250},"apc_paid":null,"fwci":0.4401,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.58083137,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"11","issue":"7","first_page":"2210","last_page":"2222"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10644","display_name":"Cryospheric studies and observations","score":0.9998999834060669,"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":0.9998999834060669,"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/T11312","display_name":"Soil Moisture and Remote Sensing","score":0.9943000078201294,"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/T11333","display_name":"Climate change and permafrost","score":0.9936000108718872,"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/snow","display_name":"Snow","score":0.7839763164520264},{"id":"https://openalex.org/keywords/radiometer","display_name":"Radiometer","score":0.7315712571144104},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.7256292700767517},{"id":"https://openalex.org/keywords/microwave-radiometer","display_name":"Microwave radiometer","score":0.6453150510787964},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.6063634753227234},{"id":"https://openalex.org/keywords/microwave","display_name":"Microwave","score":0.5651853084564209},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5087178349494934},{"id":"https://openalex.org/keywords/snow-cover","display_name":"Snow cover","score":0.48846474289894104},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.473096638917923},{"id":"https://openalex.org/keywords/land-cover","display_name":"Land cover","score":0.4650508165359497},{"id":"https://openalex.org/keywords/standard-deviation","display_name":"Standard deviation","score":0.4565252363681793},{"id":"https://openalex.org/keywords/microwave-imaging","display_name":"Microwave imaging","score":0.42236828804016113},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.36691510677337646},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.30611708760261536},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.24630901217460632},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.24005693197250366},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.20957881212234497},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.12110492587089539},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11785420775413513},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11295557022094727},{"id":"https://openalex.org/keywords/land-use","display_name":"Land use","score":0.08710119128227234}],"concepts":[{"id":"https://openalex.org/C197046000","wikidata":"https://www.wikidata.org/wiki/Q7561","display_name":"Snow","level":2,"score":0.7839763164520264},{"id":"https://openalex.org/C120189094","wikidata":"https://www.wikidata.org/wiki/Q850281","display_name":"Radiometer","level":2,"score":0.7315712571144104},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7256292700767517},{"id":"https://openalex.org/C96960616","wikidata":"https://www.wikidata.org/wiki/Q3814470","display_name":"Microwave radiometer","level":3,"score":0.6453150510787964},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.6063634753227234},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.5651853084564209},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5087178349494934},{"id":"https://openalex.org/C2983043445","wikidata":"https://www.wikidata.org/wiki/Q7561","display_name":"Snow cover","level":3,"score":0.48846474289894104},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.473096638917923},{"id":"https://openalex.org/C2780648208","wikidata":"https://www.wikidata.org/wiki/Q3001793","display_name":"Land cover","level":3,"score":0.4650508165359497},{"id":"https://openalex.org/C22679943","wikidata":"https://www.wikidata.org/wiki/Q159375","display_name":"Standard deviation","level":2,"score":0.4565252363681793},{"id":"https://openalex.org/C2779885931","wikidata":"https://www.wikidata.org/wiki/Q17010029","display_name":"Microwave imaging","level":3,"score":0.42236828804016113},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.36691510677337646},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.30611708760261536},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.24630901217460632},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.24005693197250366},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.20957881212234497},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.12110492587089539},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11785420775413513},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11295557022094727},{"id":"https://openalex.org/C4792198","wikidata":"https://www.wikidata.org/wiki/Q1165944","display_name":"Land use","level":2,"score":0.08710119128227234},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jstars.2018.2815681","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2018.2815681","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life in Land","score":0.6600000262260437,"id":"https://metadata.un.org/sdg/15"}],"awards":[{"id":"https://openalex.org/G6701315298","display_name":"\u57fa\u4e8e\u4e0d\u540c\u4e0b\u57ab\u9762\u88ab\u52a8\u5fae\u6ce2\u6df7\u5408\u50cf\u5143\u5206\u89e3\u6a21\u578b\u7684\u4e2d\u56fd\u4e1c\u5317\u5730\u533a\u79ef\u96ea\u6df1\u5ea6\u548c\u96ea\u6c34\u5f53\u91cf\u53cd\u6f14\u7814\u7a76","funder_award_id":"41471344","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W1521627754","https://openalex.org/W1571276853","https://openalex.org/W1580827583","https://openalex.org/W1907002286","https://openalex.org/W1972015874","https://openalex.org/W1972045259","https://openalex.org/W1975687615","https://openalex.org/W1982859007","https://openalex.org/W2014874426","https://openalex.org/W2017376346","https://openalex.org/W2035466844","https://openalex.org/W2039743872","https://openalex.org/W2050835657","https://openalex.org/W2059805075","https://openalex.org/W2069474014","https://openalex.org/W2074418666","https://openalex.org/W2075665712","https://openalex.org/W2095377724","https://openalex.org/W2105169214","https://openalex.org/W2110307296","https://openalex.org/W2117396433","https://openalex.org/W2130375876","https://openalex.org/W2136733998","https://openalex.org/W2139845314","https://openalex.org/W2146846308","https://openalex.org/W2159769116","https://openalex.org/W2265573996","https://openalex.org/W2348346088","https://openalex.org/W2376254905","https://openalex.org/W2461785582","https://openalex.org/W2510892750","https://openalex.org/W2514631964","https://openalex.org/W2550290998","https://openalex.org/W2613669634","https://openalex.org/W4385471056","https://openalex.org/W6725921232"],"related_works":["https://openalex.org/W2381259876","https://openalex.org/W2016007472","https://openalex.org/W2360231461","https://openalex.org/W2013323393","https://openalex.org/W2413930784","https://openalex.org/W2140108161","https://openalex.org/W2005776842","https://openalex.org/W2165236048","https://openalex.org/W2388976256","https://openalex.org/W2097128340"],"abstract_inverted_index":{"Passive":[0],"microwave":[1,12,17,78,91,98],"data":[2,66,95,115,129,146,190,197],"of":[3,16,31,55,72,166],"a":[4,10,75],"snow-covered":[5],"land":[6,42],"surface":[7],"received":[8],"by":[9,209],"passive":[11,77],"radiometer":[13,100],"is":[14,33,58,81],"composed":[15],"radiation":[18,92],"from":[19],"the":[20,24,41,68,84,104,121,127,135,148,153,176,180,192,199,203,216,222],"snow":[21,63],"cover":[22,43],"and":[23,50,96,119,125,133,162,169,185,206,212],"underlying":[25],"surface.":[26],"The":[27,52,139],"western":[28,69],"Jilin":[29,70],"Province":[30,71],"China":[32],"an":[34],"important":[35],"area":[36],"with":[37,116,120,130,134,147,159,179,198,220],"seasonal":[38],"snow.":[39],"Here,":[40],"types":[44],"mainly":[45],"include":[46],"characteristically":[47],"saline-alkaline":[48],"farmland":[49],"grassland.":[51],"main":[53],"aim":[54],"this":[56],"paper":[57],"to":[59],"obtain":[60],"more":[61,187],"accurate":[62,188],"depth":[64],"(SD)":[65],"in":[67],"China.":[73],"First,":[74],"multifrequency":[76],"unmixing":[79,177],"method":[80,178],"proposed":[82],"for":[83,156,191],"study":[85,193],"area.":[86,194],"Second,":[87],"based":[88],"on":[89],"Fengyun-3B":[90],"imagery":[93],"(MWRI)":[94],"advanced":[97],"scanning":[99],"2":[101],"(AMSR2)":[102],"data,":[103],"SD":[105,157,182,189],"retrieval":[106,183],"results":[107,141],"are":[108],"evaluated":[109],"using":[110,113,126,144,215,221],"four":[111],"methods:":[112],"MWRI":[114,123,145,150,196,201],"Foster's":[117,131],"algorithm":[118,132,151],"standard":[122,136,149,200],"algorithm,":[124,202],"AMSR2":[128,137],"algorithm.":[138],"experimental":[140],"demonstrate":[142],"that":[143],"yields":[152],"highest":[154],"accuracy":[155],"retrieval,":[158],"average":[160,204],"bias":[161,205],"root-mean-square-error":[163],"(RMSE)":[164],"values":[165],"approximately":[167,210],"6.9":[168],"7.5":[170],"cm,":[171],"respectively.":[172],"Finally,":[173],"we":[174],"combined":[175],"optimal":[181],"method,":[184],"obtained":[186],"Using":[195],"RMSE":[207],"improved":[208],"9.7%":[211],"7%":[213],"when":[214],"unmixed":[217],"pixels":[218],"compared":[219],"original":[223],"mixed":[224],"pixels.":[225]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}
