{"id":"https://openalex.org/W4312805640","doi":"https://doi.org/10.1109/igarss46834.2022.9883833","title":"Quantifying and Reducing Uncertainty in Microwave Vegetation Optical Depth and Soil Moisture Retrievals","display_name":"Quantifying and Reducing Uncertainty in Microwave Vegetation Optical Depth and Soil Moisture Retrievals","publication_year":2022,"publication_date":"2022-07-17","ids":{"openalex":"https://openalex.org/W4312805640","doi":"https://doi.org/10.1109/igarss46834.2022.9883833"},"language":"en","primary_location":{"id":"doi:10.1109/igarss46834.2022.9883833","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss46834.2022.9883833","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"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":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","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/A5070087976","display_name":"Andrew F. Feldman","orcid":"https://orcid.org/0000-0003-1547-6995"},"institutions":[{"id":"https://openalex.org/I1306266525","display_name":"Goddard Space Flight Center","ror":"https://ror.org/0171mag52","country_code":"US","type":"facility","lineage":["https://openalex.org/I1306266525","https://openalex.org/I4210124779"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Andrew F. Feldman","raw_affiliation_strings":["NASA Goddard Space Flight Center,Biospheric Sciences Laboratory,Greenbelt,MD,USA","NASA Postdoctoral Program, NASA Goddard Space Flight Center, Greenbelt, MD, USA","Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NASA Goddard Space Flight Center,Biospheric Sciences Laboratory,Greenbelt,MD,USA","institution_ids":["https://openalex.org/I1306266525"]},{"raw_affiliation_string":"NASA Postdoctoral Program, NASA Goddard Space Flight Center, Greenbelt, MD, USA","institution_ids":["https://openalex.org/I1306266525"]},{"raw_affiliation_string":"Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA","institution_ids":["https://openalex.org/I1306266525"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007222499","display_name":"David Chaparro","orcid":"https://orcid.org/0000-0002-5545-6182"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"David Chaparro","raw_affiliation_strings":["Universitat Polit&#x00E8;cnica de Catalunya, &#x0026; IEEC,Barcelona, Catalunya,Spain","German Aerospace Center, Microwaves and Radar Institute, Wessling, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universitat Polit&#x00E8;cnica de Catalunya, &#x0026; IEEC,Barcelona, Catalunya,Spain","institution_ids":[]},{"raw_affiliation_string":"German Aerospace Center, Microwaves and Radar Institute, Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085491613","display_name":"Dara Entekhabi","orcid":"https://orcid.org/0000-0002-8362-4761"},"institutions":[{"id":"https://openalex.org/I63966007","display_name":"Massachusetts Institute of Technology","ror":"https://ror.org/042nb2s44","country_code":"US","type":"education","lineage":["https://openalex.org/I63966007"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dara Entekhabi","raw_affiliation_strings":["Massachusetts Institute of Technology,Civil and Environmental Engineering,Cambridge,MA","Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Massachusetts Institute of Technology,Civil and Environmental Engineering,Cambridge,MA","institution_ids":["https://openalex.org/I63966007"]},{"raw_affiliation_string":"Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA","institution_ids":["https://openalex.org/I63966007"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.6389,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.63680518,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"5586","last_page":"5589"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11312","display_name":"Soil Moisture and Remote Sensing","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T11312","display_name":"Soil Moisture and Remote Sensing","score":0.9998999834060669,"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/T11234","display_name":"Precipitation Measurement and Analysis","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"}},{"id":"https://openalex.org/T10644","display_name":"Cryospheric studies and observations","score":0.993399977684021,"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/water-content","display_name":"Water content","score":0.7735185623168945},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.714702308177948},{"id":"https://openalex.org/keywords/biosphere","display_name":"Biosphere","score":0.6569216251373291},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.6563202142715454},{"id":"https://openalex.org/keywords/brightness-temperature","display_name":"Brightness temperature","score":0.6198839545249939},{"id":"https://openalex.org/keywords/vegetation","display_name":"Vegetation (pathology)","score":0.5049751400947571},{"id":"https://openalex.org/keywords/hydrosphere","display_name":"Hydrosphere","score":0.4926033616065979},{"id":"https://openalex.org/keywords/soil-science","display_name":"Soil science","score":0.4674787223339081},{"id":"https://openalex.org/keywords/brightness","display_name":"Brightness","score":0.428171306848526},{"id":"https://openalex.org/keywords/microwave","display_name":"Microwave","score":0.3673006296157837},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.33647072315216064},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.31744468212127686},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.11063817143440247},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.07318416237831116},{"id":"https://openalex.org/keywords/ecology","display_name":"Ecology","score":0.06678962707519531}],"concepts":[{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.7735185623168945},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.714702308177948},{"id":"https://openalex.org/C107218244","wikidata":"https://www.wikidata.org/wiki/Q42762","display_name":"Biosphere","level":2,"score":0.6569216251373291},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6563202142715454},{"id":"https://openalex.org/C53802167","wikidata":"https://www.wikidata.org/wiki/Q4538627","display_name":"Brightness temperature","level":3,"score":0.6198839545249939},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.5049751400947571},{"id":"https://openalex.org/C126026641","wikidata":"https://www.wikidata.org/wiki/Q83169","display_name":"Hydrosphere","level":3,"score":0.4926033616065979},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.4674787223339081},{"id":"https://openalex.org/C125245961","wikidata":"https://www.wikidata.org/wiki/Q221656","display_name":"Brightness","level":2,"score":0.428171306848526},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.3673006296157837},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.33647072315216064},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.31744468212127686},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.11063817143440247},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.07318416237831116},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.06678962707519531},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","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/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"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/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/igarss46834.2022.9883833","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss46834.2022.9883833","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"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":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},{"id":"pmh:oai:upcommons.upc.edu:2117/387120","is_oa":false,"landing_page_url":"http://hdl.handle.net/2117/387120","pdf_url":null,"source":{"id":"https://openalex.org/S4377196262","display_name":"UPCommons institutional repository (Universitat Polit\u00e8cnica de Catalunya)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9617848","host_organization_name":"Universitat Polit\u00e8cnica de Catalunya","host_organization_lineage":["https://openalex.org/I9617848"],"host_organization_lineage_names":[],"type":"repository"},"license":"public-domain","license_id":"https://openalex.org/licenses/public-domain","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference report"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15","score":0.44999998807907104}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W2084793005","https://openalex.org/W2176285294","https://openalex.org/W2900634410","https://openalex.org/W2927226345","https://openalex.org/W2954972827","https://openalex.org/W3093027052","https://openalex.org/W3211571539"],"related_works":["https://openalex.org/W2375833299","https://openalex.org/W4254379987","https://openalex.org/W4206442279","https://openalex.org/W1965177701","https://openalex.org/W4248894097","https://openalex.org/W3166003374","https://openalex.org/W437268920","https://openalex.org/W4235489349","https://openalex.org/W2374205678","https://openalex.org/W4389588959"],"abstract_inverted_index":{"Soil":[0],"moisture":[1,32,55,74],"and":[2,15,26,56,75,89],"vegetation":[3,9],"optical":[4],"depth":[5],"(VOD;":[6],"related":[7],"to":[8],"water":[10],"content)":[11],"retrieved":[12],"from":[13,145],"SMAP":[14],"SMOS":[16],"satellites":[17],"are":[18,135],"widely":[19],"used":[20],"for":[21],"a":[22],"range":[23],"of":[24,45],"hydrosphere":[25],"biosphere":[27],"applications.":[28],"However,":[29,106],"while":[30],"soil":[31,54,73],"has":[33,39],"been":[34,40],"globally":[35],"well-validated,":[36],"VOD":[37,57,76,108],"validation":[38],"sparse.":[41],"Furthermore,":[42],"simultaneously":[43],"retrieval":[44],"these":[46,94,128],"parameters":[47],"results":[48],"in":[49,53,62,139],"uncertainties":[50],"both":[51],"individually":[52],"retrievals":[58,77,143],"as":[59,61],"well":[60],"compensation":[63],"between":[64],"the":[65],"parameters.":[66],"Here,":[67],"we":[68,97],"show":[69,98],"global":[70,141],"locations":[71],"where":[72,120],"will":[78],"have":[79],"lower":[80],"uncertainty,":[81],"based":[82],"on":[83],"complementary":[84],"brightness":[85],"temperature":[86],"information":[87],"content":[88],"signal-to-noise":[90],"ratio":[91],"metrics.":[92],"In":[93],"same":[95],"locations,":[96],"that":[99,131],"error":[100,112,122],"still":[101],"propagates":[102],"more":[103],"into":[104],"VOD.":[105],"using":[107],"regularization":[109,129],"algorithms,":[110],"this":[111],"is":[113],"greatly":[114],"reduced,":[115],"especially":[116],"at":[117],"sub-weekly":[118],"timescales":[119],"algorithmic":[121,147],"can":[123],"be":[124],"most":[125],"apparent.":[126],"Despite":[127],"approaches":[130],"reduce":[132],"errors,":[133],"there":[134],"yet":[136],"vast":[137],"differences":[138],"available":[140],"regularized":[142],"originating":[144],"different":[146],"choices.":[148]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
