{"id":"https://openalex.org/W2901354957","doi":"https://doi.org/10.1109/igarss.2018.8518772","title":"Remote Sensing of Root-Zone Soil Moisture Using I- and P-Band Signals of Opportunity: Instrument Validation Studies","display_name":"Remote Sensing of Root-Zone Soil Moisture Using I- and P-Band Signals of Opportunity: Instrument Validation Studies","publication_year":2018,"publication_date":"2018-07-01","ids":{"openalex":"https://openalex.org/W2901354957","doi":"https://doi.org/10.1109/igarss.2018.8518772","mag":"2901354957"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2018.8518772","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2018.8518772","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2018 - 2018 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/A5044659164","display_name":"James L. Garrison","orcid":"https://orcid.org/0000-0002-0269-9834"},"institutions":[{"id":"https://openalex.org/I219193219","display_name":"Purdue University West Lafayette","ror":"https://ror.org/02dqehb95","country_code":"US","type":"education","lineage":["https://openalex.org/I219193219"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"J. L. Garrison","raw_affiliation_strings":["Purdue University, West Lafayette, IN, USA"],"affiliations":[{"raw_affiliation_string":"Purdue University, West Lafayette, IN, USA","institution_ids":["https://openalex.org/I219193219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065532859","display_name":"Mehmet Kurum","orcid":"https://orcid.org/0000-0002-5750-9014"},"institutions":[{"id":"https://openalex.org/I99041443","display_name":"Mississippi State University","ror":"https://ror.org/0432jq872","country_code":"US","type":"education","lineage":["https://openalex.org/I4210141039","https://openalex.org/I99041443"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"M. Kurum","raw_affiliation_strings":["Mississippi State University, MS"],"affiliations":[{"raw_affiliation_string":"Mississippi State University, MS","institution_ids":["https://openalex.org/I99041443"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043274312","display_name":"B. Nold","orcid":null},"institutions":[{"id":"https://openalex.org/I219193219","display_name":"Purdue University West Lafayette","ror":"https://ror.org/02dqehb95","country_code":"US","type":"education","lineage":["https://openalex.org/I219193219"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"B. Nold","raw_affiliation_strings":["Purdue University, West Lafayette, IN, USA"],"affiliations":[{"raw_affiliation_string":"Purdue University, West Lafayette, IN, USA","institution_ids":["https://openalex.org/I219193219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029603049","display_name":"Jeffrey R. Piepmeier","orcid":"https://orcid.org/0000-0003-1207-9281"},"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":"J. Piepmeier","raw_affiliation_strings":["NASA Goddard Spaceflight Center, Greenbelt, MD, USA"],"affiliations":[{"raw_affiliation_string":"NASA Goddard Spaceflight Center, Greenbelt, MD, USA","institution_ids":["https://openalex.org/I1306266525"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113897549","display_name":"M. A. Vega","orcid":"https://orcid.org/0009-0004-5474-1952"},"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":"M. A. Vega","raw_affiliation_strings":["NASA Goddard Spaceflight Center, Greenbelt, MD, USA"],"affiliations":[{"raw_affiliation_string":"NASA Goddard Spaceflight Center, Greenbelt, MD, USA","institution_ids":["https://openalex.org/I1306266525"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037110476","display_name":"Rajat Bindlish","orcid":"https://orcid.org/0000-0002-1913-0353"},"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":"R. Bindlish","raw_affiliation_strings":["NASA Goddard Spaceflight Center, Greenbelt, MD, USA"],"affiliations":[{"raw_affiliation_string":"NASA Goddard Spaceflight Center, Greenbelt, MD, USA","institution_ids":["https://openalex.org/I1306266525"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018203616","display_name":"Garett Pignotti","orcid":"https://orcid.org/0000-0002-7787-3366"},"institutions":[{"id":"https://openalex.org/I219193219","display_name":"Purdue University West Lafayette","ror":"https://ror.org/02dqehb95","country_code":"US","type":"education","lineage":["https://openalex.org/I219193219"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"G. Pignotti","raw_affiliation_strings":["Purdue University, West Lafayette, IN, USA"],"affiliations":[{"raw_affiliation_string":"Purdue University, West Lafayette, IN, USA","institution_ids":["https://openalex.org/I219193219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5044659164"],"corresponding_institution_ids":["https://openalex.org/I219193219"],"apc_list":null,"apc_paid":null,"fwci":1.4347,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.79925624,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"8305","last_page":"8308"},"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":0.9884999990463257,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9585000276565552,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.6707146167755127},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6080877780914307},{"id":"https://openalex.org/keywords/water-content","display_name":"Water content","score":0.5919347405433655},{"id":"https://openalex.org/keywords/microwave","display_name":"Microwave","score":0.5456136465072632},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.47232764959335327},{"id":"https://openalex.org/keywords/tower","display_name":"Tower","score":0.43984392285346985},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.37631845474243164},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.31684738397598267},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.27113860845565796},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.23605364561080933},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.1908206045627594}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6707146167755127},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6080877780914307},{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.5919347405433655},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.5456136465072632},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.47232764959335327},{"id":"https://openalex.org/C2777831296","wikidata":"https://www.wikidata.org/wiki/Q12518","display_name":"Tower","level":2,"score":0.43984392285346985},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.37631845474243164},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.31684738397598267},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.27113860845565796},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.23605364561080933},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.1908206045627594},{"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/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2018.8518772","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2018.8518772","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":0.7699999809265137,"display_name":"Zero hunger"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1977531189","https://openalex.org/W2155411643","https://openalex.org/W2763763040","https://openalex.org/W2772772654","https://openalex.org/W2891102437"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W4214759293","https://openalex.org/W2948890638","https://openalex.org/W2377743247","https://openalex.org/W2481514411","https://openalex.org/W3213682227","https://openalex.org/W2367420223","https://openalex.org/W2061413604","https://openalex.org/W2567029817","https://openalex.org/W2503315867"],"abstract_inverted_index":{"Root":[0],"zone":[1],"soil":[2,149],"moisture":[3,150],"(RZSM)":[4],"is":[5,122],"an":[6,66,103],"essential":[7],"variable":[8],"in":[9,35,87,102,126],"meteorology,":[10],"hydrology,":[11],"and":[12,28,50,146],"agriculture.":[13],"A":[14,112],"penetration":[15],"depth":[16],"sufficient":[17],"to":[18,43,137],"sense":[19],"RZSM":[20],"requires":[21],"frequencies":[22],"below":[23],"about":[24],"500":[25],"MHz":[26,83,96],"(I-":[27],"P-band).":[29],"Active":[30],"or":[31],"passive":[32],"microwave":[33],"sensing":[34],"these":[36,144],"bands":[37,75],"presents":[38],"substantial":[39],"technical":[40],"challenges":[41],"due":[42],"antenna":[44],"size,":[45],"radio":[46],"frequency":[47],"interference":[48],"(RFI)":[49],"competition":[51],"for":[52,77],"spectrum.":[53],"Bistatic":[54],"radar":[55],"using":[56,81,94],"Signal":[57],"of":[58,128,141,148],"Opportunity":[59],"(SoOp)":[60],"(e.g.":[61],"digital":[62],"satellite":[63],"transmitters)":[64],"offers":[65],"alternative":[67],"approach,":[68],"through":[69],"reutilizing":[70],"powerful":[71],"signals":[72],"already":[73],"occupying":[74],"allocated":[76],"communications.":[78],"Airborne":[79],"experiments":[80],"240-270":[82],"sources":[84],"were":[85],"conducted":[86],"October":[88],"2016,":[89],"followed":[90],"by":[91],"a":[92,98],"campaign":[93,114],"360-380":[95],"from":[97,143],"fixed":[99],"tower":[100],"location":[101],"agricultural":[104],"research":[105],"site":[106],"during":[107],"the":[108,129,139],"2017":[109],"growing":[110],"season.":[111,131],"new":[113],"that":[115],"will":[116,134],"also":[117],"include":[118],"I-band":[119],"(137":[120],"MHz)":[121],"presently":[123],"being":[124],"installed":[125],"advance":[127],"2018":[130],"This":[132],"paper":[133],"summarize":[135],"activities":[136],"support":[138],"reduction":[140],"data":[142],"campaigns":[145],"development":[147],"profile":[151],"retrievals.":[152]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
