{"id":"https://openalex.org/W3206262824","doi":"https://doi.org/10.1109/igarss47720.2021.9554288","title":"Permafrost Dynamics Observatory: Retrieval of Active Layer Thickness and Soil Moisture from Airborne Insar and Polsar Data","display_name":"Permafrost Dynamics Observatory: Retrieval of Active Layer Thickness and Soil Moisture from Airborne Insar and Polsar Data","publication_year":2021,"publication_date":"2021-07-11","ids":{"openalex":"https://openalex.org/W3206262824","doi":"https://doi.org/10.1109/igarss47720.2021.9554288","mag":"3206262824"},"language":"en","primary_location":{"id":"doi:10.1109/igarss47720.2021.9554288","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9554288","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","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/A5087893018","display_name":"Richard H. Chen","orcid":"https://orcid.org/0000-0001-8571-689X"},"institutions":[{"id":"https://openalex.org/I1334627681","display_name":"Jet Propulsion Laboratory","ror":"https://ror.org/027k65916","country_code":"US","type":"facility","lineage":["https://openalex.org/I122411786","https://openalex.org/I1334627681","https://openalex.org/I4210124779"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Richard H. Chen","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA"],"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032374050","display_name":"Roger Michaelides","orcid":"https://orcid.org/0000-0002-7577-6829"},"institutions":[{"id":"https://openalex.org/I167576493","display_name":"Colorado School of Mines","ror":"https://ror.org/04raf6v53","country_code":"US","type":"education","lineage":["https://openalex.org/I167576493"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Roger J. Michaelides","raw_affiliation_strings":["Colorado School of Mines, Golden, CO"],"affiliations":[{"raw_affiliation_string":"Colorado School of Mines, Golden, CO","institution_ids":["https://openalex.org/I167576493"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110997511","display_name":"Yuhuan Zhao","orcid":"https://orcid.org/0000-0003-4190-624X"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yuhuan Zhao","raw_affiliation_strings":["University of Southern California, Los Angeles, CA"],"affiliations":[{"raw_affiliation_string":"University of Southern California, Los Angeles, CA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035544336","display_name":"Lingcao Huang","orcid":"https://orcid.org/0000-0003-3072-7334"},"institutions":[{"id":"https://openalex.org/I188538660","display_name":"University of Colorado Boulder","ror":"https://ror.org/02ttsq026","country_code":"US","type":"education","lineage":["https://openalex.org/I188538660"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lingcao Huang","raw_affiliation_strings":["University of Colorado Boulder, Boulder, CO"],"affiliations":[{"raw_affiliation_string":"University of Colorado Boulder, Boulder, CO","institution_ids":["https://openalex.org/I188538660"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040166094","display_name":"Elizabeth Wig","orcid":"https://orcid.org/0000-0002-8604-0155"},"institutions":[{"id":"https://openalex.org/I97018004","display_name":"Stanford University","ror":"https://ror.org/00f54p054","country_code":"US","type":"education","lineage":["https://openalex.org/I97018004"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Elizabeth Wig","raw_affiliation_strings":["Stanford University, Stanford, CA"],"affiliations":[{"raw_affiliation_string":"Stanford University, Stanford, CA","institution_ids":["https://openalex.org/I97018004"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030266096","display_name":"Taylor Sullivan","orcid":"https://orcid.org/0000-0001-6293-3015"},"institutions":[{"id":"https://openalex.org/I12834331","display_name":"University of Wyoming","ror":"https://ror.org/01485tq96","country_code":"US","type":"education","lineage":["https://openalex.org/I12834331"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Taylor D. Sullivan","raw_affiliation_strings":["University of Wyoming, Laramie, WY"],"affiliations":[{"raw_affiliation_string":"University of Wyoming, Laramie, WY","institution_ids":["https://openalex.org/I12834331"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049920825","display_name":"A. Parsekian","orcid":"https://orcid.org/0000-0001-5072-9818"},"institutions":[{"id":"https://openalex.org/I12834331","display_name":"University of Wyoming","ror":"https://ror.org/01485tq96","country_code":"US","type":"education","lineage":["https://openalex.org/I12834331"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Andrew D. Parsekian","raw_affiliation_strings":["University of Wyoming, Laramie, WY"],"affiliations":[{"raw_affiliation_string":"University of Wyoming, Laramie, WY","institution_ids":["https://openalex.org/I12834331"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063389980","display_name":"H. A. Zebker","orcid":"https://orcid.org/0000-0001-9931-5237"},"institutions":[{"id":"https://openalex.org/I97018004","display_name":"Stanford University","ror":"https://ror.org/00f54p054","country_code":"US","type":"education","lineage":["https://openalex.org/I97018004"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Howard A. Zebker","raw_affiliation_strings":["Stanford University, Stanford, CA"],"affiliations":[{"raw_affiliation_string":"Stanford University, Stanford, CA","institution_ids":["https://openalex.org/I97018004"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051682678","display_name":"Mahta Moghaddam","orcid":"https://orcid.org/0000-0001-5304-2616"},"institutions":[{"id":"https://openalex.org/I1174212","display_name":"University of Southern California","ror":"https://ror.org/03taz7m60","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mahta Moghaddam","raw_affiliation_strings":["University of Southern California, Los Angeles, CA"],"affiliations":[{"raw_affiliation_string":"University of Southern California, Los Angeles, CA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086540610","display_name":"Kevin Schaefer","orcid":"https://orcid.org/0000-0002-5444-9917"},"institutions":[{"id":"https://openalex.org/I188538660","display_name":"University of Colorado Boulder","ror":"https://ror.org/02ttsq026","country_code":"US","type":"education","lineage":["https://openalex.org/I188538660"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kevin M. Schaefer","raw_affiliation_strings":["University of Colorado Boulder, Boulder, CO"],"affiliations":[{"raw_affiliation_string":"University of Colorado Boulder, Boulder, CO","institution_ids":["https://openalex.org/I188538660"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":10,"corresponding_author_ids":["https://openalex.org/A5087893018"],"corresponding_institution_ids":["https://openalex.org/I1334627681"],"apc_list":null,"apc_paid":null,"fwci":0.5951,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.66395922,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1444","last_page":"1447"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11333","display_name":"Climate change and permafrost","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/T11333","display_name":"Climate change and permafrost","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/T10644","display_name":"Cryospheric studies and observations","score":0.9991000294685364,"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":0.9983999729156494,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/permafrost","display_name":"Permafrost","score":0.8953321576118469},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.7543670535087585},{"id":"https://openalex.org/keywords/interferometric-synthetic-aperture-radar","display_name":"Interferometric synthetic aperture radar","score":0.7027014493942261},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.6439111232757568},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5399392247200012},{"id":"https://openalex.org/keywords/active-layer","display_name":"Active layer","score":0.5346922278404236},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.5107128620147705},{"id":"https://openalex.org/keywords/water-content","display_name":"Water content","score":0.4719086289405823},{"id":"https://openalex.org/keywords/ground-penetrating-radar","display_name":"Ground-penetrating radar","score":0.4541359543800354},{"id":"https://openalex.org/keywords/polarimetry","display_name":"Polarimetry","score":0.43301212787628174},{"id":"https://openalex.org/keywords/taiga","display_name":"Taiga","score":0.4191797971725464},{"id":"https://openalex.org/keywords/moisture","display_name":"Moisture","score":0.4182218611240387},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.4180053770542145},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.2564122676849365},{"id":"https://openalex.org/keywords/layer","display_name":"Layer (electronics)","score":0.12710627913475037},{"id":"https://openalex.org/keywords/geotechnical-engineering","display_name":"Geotechnical engineering","score":0.09409499168395996},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.0839255154132843},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.0777360200881958},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.06192803382873535},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.05706077814102173}],"concepts":[{"id":"https://openalex.org/C15098985","wikidata":"https://www.wikidata.org/wiki/Q179918","display_name":"Permafrost","level":2,"score":0.8953321576118469},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7543670535087585},{"id":"https://openalex.org/C22286887","wikidata":"https://www.wikidata.org/wiki/Q1666056","display_name":"Interferometric synthetic aperture radar","level":3,"score":0.7027014493942261},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.6439111232757568},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5399392247200012},{"id":"https://openalex.org/C2776026197","wikidata":"https://www.wikidata.org/wiki/Q201890","display_name":"Active layer","level":4,"score":0.5346922278404236},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.5107128620147705},{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.4719086289405823},{"id":"https://openalex.org/C71813955","wikidata":"https://www.wikidata.org/wiki/Q503560","display_name":"Ground-penetrating radar","level":3,"score":0.4541359543800354},{"id":"https://openalex.org/C28493345","wikidata":"https://www.wikidata.org/wiki/Q899381","display_name":"Polarimetry","level":3,"score":0.43301212787628174},{"id":"https://openalex.org/C87621631","wikidata":"https://www.wikidata.org/wiki/Q69564","display_name":"Taiga","level":2,"score":0.4191797971725464},{"id":"https://openalex.org/C176864760","wikidata":"https://www.wikidata.org/wiki/Q217651","display_name":"Moisture","level":2,"score":0.4182218611240387},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.4180053770542145},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.2564122676849365},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.12710627913475037},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.09409499168395996},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0839255154132843},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0777360200881958},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.06192803382873535},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.05706077814102173},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"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/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","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},{"id":"https://openalex.org/C87359718","wikidata":"https://www.wikidata.org/wiki/Q1271916","display_name":"Thin-film transistor","level":3,"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/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss47720.2021.9554288","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9554288","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5299999713897705,"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320306101","display_name":"National Aeronautics and Space Administration","ror":"https://ror.org/027ka1x80"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1975179854","https://openalex.org/W2029654989","https://openalex.org/W2031697714","https://openalex.org/W2118606156","https://openalex.org/W2123212874","https://openalex.org/W2904157734","https://openalex.org/W2922026936","https://openalex.org/W2962878620","https://openalex.org/W2985945536","https://openalex.org/W3010958554"],"related_works":["https://openalex.org/W2058961826","https://openalex.org/W1966902024","https://openalex.org/W2364233598","https://openalex.org/W2765270907","https://openalex.org/W2791434249","https://openalex.org/W2741344349","https://openalex.org/W154981711","https://openalex.org/W2604111388","https://openalex.org/W4205155740","https://openalex.org/W3082372064"],"abstract_inverted_index":{"The":[0,81],"Permafrost":[1],"Dynamics":[2],"Observatory":[3],"(PDO)":[4],"combines":[5],"L-band":[6,37],"interferometric":[7],"synthetic":[8,15],"aperture":[9,16],"radar":[10,17,138],"(InSAR)":[11],"and":[12,26,50,69,91,116,124,131],"P-band":[13,51,92],"polarimetric":[14],"(PolSAR)":[18],"to":[19,44,56,74,88],"simultaneously":[20],"estimate":[21],"the":[22,31,47,100,113,121,126],"seasonal":[23,41],"thaw":[24],"depth":[25],"soil":[27,58,70,132],"moisture":[28,71,133],"profile":[29],"of":[30,46],"active":[32,48,76],"layer":[33,49,77],"in":[34,120],"permafrost":[35],"regions.":[36],"InSAR":[38],"can":[39],"measure":[40],"subsidence":[42,68],"due":[43],"thawing":[45],"PolSAR":[52],"backscatter":[53],"is":[54,64],"sensitive":[55],"subsurface":[57],"moisture.":[59],"A":[60],"joint":[61,83,117],"retrieval":[62,84],"scheme":[63],"developed":[65],"as":[66],"both":[67],"are":[72],"essential":[73],"accurate":[75],"thickness":[78],"(ALT)":[79],"estimation.":[80],"PDO":[82,122],"has":[85],"been":[86],"applied":[87],"airborne":[89,106],"L-":[90],"SAR":[93],"data":[94,134],"acquired":[95],"over":[96],"Arctic-boreal":[97],"region":[98],"during":[99],"2017":[101],"Arctic-Boreal":[102],"Vulnerability":[103],"Experiment":[104],"(ABoVE)":[105],"campaign.":[107],"In":[108],"this":[109],"paper,":[110],"we":[111],"describe":[112],"forward":[114],"models":[115],"inversion":[118],"used":[119],"retrievals":[123],"compare":[125],"results":[127],"with":[128],"in-situ":[129],"ALT":[130],"estimated":[135],"from":[136],"ground-penetrating":[137],"(GPR).":[139]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}