{"id":"https://openalex.org/W2003015139","doi":"https://doi.org/10.4081/rg.2012.e11","title":"Inversion for basal friction coefficients with a two-dimensional flow line model using Tikhonov regularization","display_name":"Inversion for basal friction coefficients with a two-dimensional flow line model using Tikhonov regularization","publication_year":2012,"publication_date":"2012-09-17","ids":{"openalex":"https://openalex.org/W2003015139","doi":"https://doi.org/10.4081/rg.2012.e11","mag":"2003015139"},"language":"en","primary_location":{"id":"doi:10.4081/rg.2012.e11","doi":"https://doi.org/10.4081/rg.2012.e11","is_oa":true,"landing_page_url":"https://doi.org/10.4081/rg.2012.e11","pdf_url":"https://www.pagepress.org/journals/index.php/rg/article/download/rg.2012.e11/pdf_1","source":{"id":"https://openalex.org/S4210209389","display_name":"Research in Geophysics","issn_l":"2038-9655","issn":["2038-9655","2038-9663"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core"],"host_organization":"https://openalex.org/P4310319913","host_organization_name":"PAGEPress (Italy)","host_organization_lineage":["https://openalex.org/P4310319913"],"host_organization_lineage_names":["PAGEPress (Italy)"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Research in Geophysics","raw_type":"journal-article"},"parent_works":[],"lineage":["https://openalex.org/W2003015139"],"child_works_count":0,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.pagepress.org/journals/index.php/rg/article/download/rg.2012.e11/pdf_1","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5034305666","display_name":"Yuri Konovalov","orcid":"https://orcid.org/0000-0002-8469-9706","observed_orcids":["https://orcid.org/0000-0002-8469-9706"]},"institutions":[{"id":"https://openalex.org/I887846188","display_name":"National Research Nuclear University MEPhI","ror":"https://ror.org/04w8z7f34","country_code":"RU","type":"education","lineage":["https://openalex.org/I887846188"]}],"countries":["RU"],"is_corresponding":true,"raw_author_name":"Yuri V. Konovalov","raw_affiliation_strings":["Department of Mathematics, National Research Nuclear University MEPhI, Moscow"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, National Research Nuclear University MEPhI, Moscow","institution_ids":["https://openalex.org/I887846188"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5034305666"],"corresponding_institution_ids":["https://openalex.org/I887846188"],"apc_list":null,"apc_paid":null,"fwci":0.5829,"has_fulltext":true,"cited_by_count":10,"citation_normalized_percentile":{"value":0.67298002,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"2","issue":"2","first_page":"11","last_page":"11"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10644","display_name":"Cryospheric studies and observations","score":0.9940999746322632,"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":0.9940999746322632,"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/T11205","display_name":"Numerical methods in inverse problems","score":0.0006000000284984708,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10017","display_name":"Geology and Paleoclimatology Research","score":0.0003000000142492354,"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/basal-friction-coefficient","display_name":"basal friction coefficient","score":0.9390000104904175},{"id":"https://openalex.org/keywords/ice-streams","display_name":"ice streams","score":0.4350000023841858},{"id":"https://openalex.org/keywords/tikhonov-regularization","display_name":"Tikhonov regularization","score":0.9900000095367432},{"id":"https://openalex.org/keywords/ill-posed-inverse-problems","display_name":"ill-posed inverse problems","score":0.949999988079071},{"id":"https://openalex.org/keywords/radar-interferometry","display_name":"radar interferometry","score":0.6200000047683716},{"id":"https://openalex.org/keywords/ice-surface-velocity","display_name":"ice surface velocity","score":0.7129999995231628},{"id":"https://openalex.org/keywords/ice-thickness","display_name":"ice thickness","score":0.6679999828338623},{"id":"https://openalex.org/keywords/sea-level-change","display_name":"sea-level change","score":0.7279999852180481},{"id":"https://openalex.org/keywords/shear-stress-distribution","display_name":"shear stress distribution","score":0.7580000162124634},{"id":"https://openalex.org/keywords/sliding-law","display_name":"sliding law","score":0.6959999799728394}],"concepts":[{"id":"https://openalex.org/C152442038","wikidata":"https://www.wikidata.org/wiki/Q2778212","display_name":"Tikhonov regularization","level":3,"score":0.8390927314758301},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.5961661338806152},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.5447183847427368},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.5100153684616089},{"id":"https://openalex.org/C2776135515","wikidata":"https://www.wikidata.org/wiki/Q17143721","display_name":"Regularization (linguistics)","level":2,"score":0.5028893351554871},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.45831745862960815},{"id":"https://openalex.org/C1893757","wikidata":"https://www.wikidata.org/wiki/Q3653001","display_name":"Inversion (geology)","level":3,"score":0.43882206082344055},{"id":"https://openalex.org/C136894858","wikidata":"https://www.wikidata.org/wiki/Q213926","display_name":"Sea ice","level":2,"score":0.4109644889831543},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.4109545648097992},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3671574890613556},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.32764101028442383},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.28443777561187744},{"id":"https://openalex.org/C114793014","wikidata":"https://www.wikidata.org/wiki/Q52109","display_name":"Geomorphology","level":1,"score":0.23473593592643738},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","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/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.4081/rg.2012.e11","doi":"https://doi.org/10.4081/rg.2012.e11","is_oa":true,"landing_page_url":"https://doi.org/10.4081/rg.2012.e11","pdf_url":"https://www.pagepress.org/journals/index.php/rg/article/download/rg.2012.e11/pdf_1","source":{"id":"https://openalex.org/S4210209389","display_name":"Research in Geophysics","issn_l":"2038-9655","issn":["2038-9655","2038-9663"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core"],"host_organization":"https://openalex.org/P4310319913","host_organization_name":"PAGEPress (Italy)","host_organization_lineage":["https://openalex.org/P4310319913"],"host_organization_lineage_names":["PAGEPress (Italy)"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Research in Geophysics","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.4081/rg.2012.e11","doi":"https://doi.org/10.4081/rg.2012.e11","is_oa":true,"landing_page_url":"https://doi.org/10.4081/rg.2012.e11","pdf_url":"https://www.pagepress.org/journals/index.php/rg/article/download/rg.2012.e11/pdf_1","source":{"id":"https://openalex.org/S4210209389","display_name":"Research in Geophysics","issn_l":"2038-9655","issn":["2038-9655","2038-9663"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core"],"host_organization":"https://openalex.org/P4310319913","host_organization_name":"PAGEPress (Italy)","host_organization_lineage":["https://openalex.org/P4310319913"],"host_organization_lineage_names":["PAGEPress (Italy)"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Research in Geophysics","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2003015139.pdf","grobid_xml":"https://content.openalex.org/works/W2003015139.grobid-xml"},"referenced_works_count":30,"referenced_works":["https://openalex.org/W61147261","https://openalex.org/W166508394","https://openalex.org/W281236391","https://openalex.org/W1486864737","https://openalex.org/W1578281258","https://openalex.org/W1781084009","https://openalex.org/W1980072449","https://openalex.org/W2001243468","https://openalex.org/W2001669024","https://openalex.org/W2033384607","https://openalex.org/W2036099926","https://openalex.org/W2056753208","https://openalex.org/W2056874620","https://openalex.org/W2065032885","https://openalex.org/W2071341963","https://openalex.org/W2084067637","https://openalex.org/W2145016426","https://openalex.org/W2146043777","https://openalex.org/W2149831284","https://openalex.org/W2149846618","https://openalex.org/W2166795445","https://openalex.org/W2170189280","https://openalex.org/W2416118443","https://openalex.org/W2927941789","https://openalex.org/W2994936094","https://openalex.org/W3010466270","https://openalex.org/W3033925681","https://openalex.org/W3041754759","https://openalex.org/W4246573181","https://openalex.org/W7024761944"],"related_works":["https://openalex.org/W3021511682","https://openalex.org/W2332163904","https://openalex.org/W3082652895","https://openalex.org/W2036099926","https://openalex.org/W1520565385","https://openalex.org/W1693041926","https://openalex.org/W4408426293","https://openalex.org/W2760728438","https://openalex.org/W7128777614","https://openalex.org/W4389143398"],"abstract_inverted_index":{"We":[0],"present":[1],"results":[2],"of":[3,20,31,34,51,109,116,172,188,215],"basal":[4,217],"friction":[5,97,143,218,238],"coefficient":[6,98,144,219,239],"inversion.":[7],"The":[8,45,107,138,180,200,211,226],"inversion":[9,201],"was":[10,178,183,202],"performed":[11,203],"by":[12,74,242],"a":[13],"2D":[14],"flow":[15],"line":[16],"model":[17],"for":[18,48,204,222],"one":[19],"the":[21,28,32,39,49,53,56,104,125,148,156,160,173,186,189,197,216,234,237,248],"four":[22],"fast":[23],"flowing":[24],"ice":[25,64,67,71,126],"streams":[26],"on":[27,113,120],"southern":[29],"side":[30],"Academy":[33],"Sciences":[35],"Ice":[36],"Cap":[37],"in":[38,103,131,236],"Komsomolets":[40],"Island,":[41],"Severnaya":[42],"Zemlya":[43],"archipelago.":[44],"input":[46],"data":[47],"performance":[50],"both":[52,205,223],"forward":[54,105],"and":[55,70,93,119,193,207],"inverse":[57,161,174],"problems":[58],"included":[59],"synthetic":[60],"aperture":[61],"radar":[62],"interferometry":[63],"surface":[65,68,150],"velocities,":[66],"elevations":[69],"thicknesses":[72],"obtained":[73],"airborne":[75],"measurements":[76],"(all":[77],"were":[78],"taken":[79],"from":[80,185],"Dowdeswell":[81],"et":[82],"al.,":[83],"2002).":[84],"Numerical":[85],"experiments":[86,132,139],"with:":[87],"i)":[88],"different":[89,134],"sea":[90,110,135],"level":[91,111,136],"shifts;":[92],"ii)":[94],"randomly":[95,141],"perturbed":[96,142],"have":[99,145],"been":[100,129],"carried":[101],"out":[102],"problem.":[106],"impact":[108],"changes":[112,235],"vertical":[114],"distribution":[115,123],"horizontal":[117],"velocity":[118,151],"shear":[121],"stress":[122],"near":[124],"front":[127],"has":[128],"investigated":[130],"with":[133,140],"shifts.":[137],"revealed":[146],"that":[147,233],"modeled":[149,194],"is":[152],"weakly":[153],"sensitive":[154],"to":[155,196],"perturbations":[157],"and,":[158],"therefore,":[159],"problem":[162],"should":[163],"be":[164],"considered":[165],"ill":[166,170],"posed.":[167],"To":[168],"mitigate":[169],"posedness":[171],"problem,":[175],"Tikhonov\u2019s":[176],"regularization":[177,181,198],"applied.":[179],"parameter":[182],"determined":[184],"relation":[187],"discrepancy":[190],"between":[191,228],"observed":[192],"velocities":[195],"parameter.":[199],"linear":[206],"non-linear":[208],"sliding":[209,224],"laws.":[210,225],"inverted":[212,230],"spatial":[213],"distributions":[214,231],"are":[220,240],"similar":[221],"similarity":[227],"these":[229],"suggests":[232],"accompanied":[241],"appropriate":[243],"water":[244],"content":[245],"variations":[246],"at":[247],"glacier":[249],"base.":[250]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-14T11:04:58.165337","created_date":"2016-06-24T00:00:00"}
