{"id":"https://openalex.org/W2579746766","doi":"https://doi.org/10.1109/tgrs.2016.2631126","title":"Surface Soil Moisture Retrieval Using the L-Band Synthetic Aperture Radar Onboard the Soil Moisture Active\u2013Passive Satellite and Evaluation at Core Validation Sites","display_name":"Surface Soil Moisture Retrieval Using the L-Band Synthetic Aperture Radar Onboard the Soil Moisture Active\u2013Passive Satellite and Evaluation at Core Validation Sites","publication_year":2017,"publication_date":"2017-01-19","ids":{"openalex":"https://openalex.org/W2579746766","doi":"https://doi.org/10.1109/tgrs.2016.2631126","mag":"2579746766","pmid":"https://pubmed.ncbi.nlm.nih.gov/31708601"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2016.2631126","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2016.2631126","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"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/A5102751060","display_name":"Seung-Bum Kim","orcid":"https://orcid.org/0000-0002-1865-5617"},"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":false,"raw_author_name":"Seung-Bum Kim","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":"https://orcid.org/0000-0002-1865-5617","affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066893692","display_name":"J.J. van Zyl","orcid":null},"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":false,"raw_author_name":"Jakob J. van Zyl","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004567285","display_name":"Joel T. Johnson","orcid":"https://orcid.org/0000-0002-6921-6059"},"institutions":[{"id":"https://openalex.org/I52357470","display_name":"The Ohio State University","ror":"https://ror.org/00rs6vg23","country_code":"US","type":"education","lineage":["https://openalex.org/I52357470"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joel T. Johnson","raw_affiliation_strings":["The Ohio State University, Columbus, OH 43212 USA","The Ohio State University, Columbus, OH, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The Ohio State University, Columbus, OH 43212 USA","institution_ids":["https://openalex.org/I52357470"]},{"raw_affiliation_string":"The Ohio State University, Columbus, OH, USA","institution_ids":["https://openalex.org/I52357470"]}]},{"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":"Matha Moghaddam","raw_affiliation_strings":["University of Southern California, Los Angeles, CA 90089 USA","University of Southern California, Los Angeles, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Southern California, Los Angeles, CA 90089 USA","institution_ids":["https://openalex.org/I1174212"]},{"raw_affiliation_string":"University of Southern California, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I1174212"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090757725","display_name":"Leung Tsang","orcid":"https://orcid.org/0000-0003-3192-2799"},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Leung Tsang","raw_affiliation_strings":["University of Michigan, Ann Arbor, MI 48109 USA","University of Michigan, Ann Arbor, MI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Michigan, Ann Arbor, MI 48109 USA","institution_ids":["https://openalex.org/I27837315"]},{"raw_affiliation_string":"University of Michigan, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008146196","display_name":"Andreas Colliander","orcid":"https://orcid.org/0000-0003-4093-8119"},"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":false,"raw_author_name":"Andreas Colliander","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":"https://orcid.org/0000-0003-4093-8119","affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063606252","display_name":"R. S. Dunbar","orcid":"https://orcid.org/0000-0003-0173-9344"},"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":false,"raw_author_name":"Roy Scott Dunbar","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102930688","display_name":"Thomas J. Jackson","orcid":"https://orcid.org/0000-0001-6297-5290"},"institutions":[{"id":"https://openalex.org/I1312222531","display_name":"Agricultural Research Service","ror":"https://ror.org/02d2m2044","country_code":"US","type":"government","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307"]},{"id":"https://openalex.org/I4210125976","display_name":"Beltsville Agricultural Research Center","ror":"https://ror.org/03b08sh51","country_code":"US","type":"facility","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307","https://openalex.org/I4210125976","https://openalex.org/I4210138094"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Thomas J. Jackson","raw_affiliation_strings":["Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD 20705 USA","Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD 20705 USA","institution_ids":["https://openalex.org/I1312222531","https://openalex.org/I4210125976"]},{"raw_affiliation_string":"Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD, USA","institution_ids":["https://openalex.org/I1312222531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031073524","display_name":"Sermsak Jaruwatanadilok","orcid":null},"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":false,"raw_author_name":"Sermsak Jaruwatanadilok","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109331154","display_name":"Richard West","orcid":null},"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":false,"raw_author_name":"Richard West","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061554533","display_name":"Aaron Berg","orcid":"https://orcid.org/0000-0001-8438-5662"},"institutions":[{"id":"https://openalex.org/I79817857","display_name":"University of Guelph","ror":"https://ror.org/01r7awg59","country_code":"CA","type":"education","lineage":["https://openalex.org/I79817857"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Aaron Berg","raw_affiliation_strings":["University of Guelph, Guelph, ON N1G 2W1, Canada","University of Guelph, Guelph, ON, Canada"],"raw_orcid":"https://orcid.org/0000-0001-8438-5662","affiliations":[{"raw_affiliation_string":"University of Guelph, Guelph, ON N1G 2W1, Canada","institution_ids":["https://openalex.org/I79817857"]},{"raw_affiliation_string":"University of Guelph, Guelph, ON, Canada","institution_ids":["https://openalex.org/I79817857"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007717292","display_name":"Todd G. Caldwell","orcid":"https://orcid.org/0000-0003-4068-0648"},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Todd Caldwell","raw_affiliation_strings":["University of Texas-Austin, Austin, TX 78713 USA","University of Texas\u2013Austin, Austin, TX, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Texas-Austin, Austin, TX 78713 USA","institution_ids":["https://openalex.org/I86519309"]},{"raw_affiliation_string":"University of Texas\u2013Austin, Austin, TX, USA","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025247468","display_name":"Michael H. Cosh","orcid":"https://orcid.org/0000-0003-4776-1918"},"institutions":[{"id":"https://openalex.org/I1312222531","display_name":"Agricultural Research Service","ror":"https://ror.org/02d2m2044","country_code":"US","type":"government","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307"]},{"id":"https://openalex.org/I4210125976","display_name":"Beltsville Agricultural Research Center","ror":"https://ror.org/03b08sh51","country_code":"US","type":"facility","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307","https://openalex.org/I4210125976","https://openalex.org/I4210138094"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Michael H. Cosh","raw_affiliation_strings":["Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD 20705 USA","Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD 20705 USA","institution_ids":["https://openalex.org/I1312222531","https://openalex.org/I4210125976"]},{"raw_affiliation_string":"Hydrology and Remote Sensing Laboratory, USDA ARS, Beltsville, MD, USA","institution_ids":["https://openalex.org/I1312222531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110662212","display_name":"David C. Goodrich","orcid":null},"institutions":[{"id":"https://openalex.org/I4210143278","display_name":"Southwest Watershed Research Center","ror":"https://ror.org/03bxq7g45","country_code":"US","type":"facility","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307","https://openalex.org/I4210094889","https://openalex.org/I4210143278"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David C. Goodrich","raw_affiliation_strings":["Southwest Watershed Research Center, USDA ARS, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southwest Watershed Research Center, USDA ARS, USA","institution_ids":["https://openalex.org/I4210143278"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112021821","display_name":"Stanley Livingston","orcid":null},"institutions":[{"id":"https://openalex.org/I4210145493","display_name":"National Soil Erosion Research Laboratory","ror":"https://ror.org/04cnk3y09","country_code":"US","type":"facility","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307","https://openalex.org/I4210145493","https://openalex.org/I4210154632"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Stanley Livingston","raw_affiliation_strings":["National Soil Erosion Research Laboratory, USDA ARS, West Lafayette, IN 47907 USA","National Soil Erosion Research Laboratory, USDA ARS, West Lafayette, IN, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Soil Erosion Research Laboratory, USDA ARS, West Lafayette, IN 47907 USA","institution_ids":["https://openalex.org/I4210145493"]},{"raw_affiliation_string":"National Soil Erosion Research Laboratory, USDA ARS, West Lafayette, IN, USA","institution_ids":["https://openalex.org/I4210145493"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038080069","display_name":"Ernesto L\u00f3pez-Baeza","orcid":"https://orcid.org/0000-0002-2044-2194"},"institutions":[{"id":"https://openalex.org/I16097986","display_name":"Universitat de Val\u00e8ncia","ror":"https://ror.org/043nxc105","country_code":"ES","type":"education","lineage":["https://openalex.org/I16097986"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Ernesto Lopez-Baeza","raw_affiliation_strings":["University of Valencia, 46100 Valencia, Spain","University of Valencia, Valencia, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Valencia, 46100 Valencia, Spain","institution_ids":["https://openalex.org/I16097986"]},{"raw_affiliation_string":"University of Valencia, Valencia, Spain","institution_ids":["https://openalex.org/I16097986"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070053243","display_name":"Tracy Rowlandson","orcid":"https://orcid.org/0000-0002-8509-2658"},"institutions":[{"id":"https://openalex.org/I79817857","display_name":"University of Guelph","ror":"https://ror.org/01r7awg59","country_code":"CA","type":"education","lineage":["https://openalex.org/I79817857"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Tracy Rowlandson","raw_affiliation_strings":["University of Guelph, Guelph, ON N1G 2W1, Canada","University of Guelph, Guelph, ON, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Guelph, Guelph, ON N1G 2W1, Canada","institution_ids":["https://openalex.org/I79817857"]},{"raw_affiliation_string":"University of Guelph, Guelph, ON, Canada","institution_ids":["https://openalex.org/I79817857"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038828535","display_name":"M. Thibeault","orcid":"https://orcid.org/0000-0002-7191-4892"},"institutions":[{"id":"https://openalex.org/I4210164210","display_name":"National Space Activities Commission","ror":"https://ror.org/05nmttp70","country_code":"AR","type":"government","lineage":["https://openalex.org/I4210164210"]}],"countries":["AR"],"is_corresponding":false,"raw_author_name":"Marc Thibeault","raw_affiliation_strings":["Comisi\u00f3n Nacional de Actividades Espaciales, Buenos Aires, Argentina"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Comisi\u00f3n Nacional de Actividades Espaciales, Buenos Aires, Argentina","institution_ids":["https://openalex.org/I4210164210"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020270621","display_name":"Jeffrey P. Walker","orcid":"https://orcid.org/0000-0002-4817-2712"},"institutions":[{"id":"https://openalex.org/I56590836","display_name":"Monash University","ror":"https://ror.org/02bfwt286","country_code":"AU","type":"education","lineage":["https://openalex.org/I56590836"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Jeffrey P. Walker","raw_affiliation_strings":["Monash University, Melbourne, VIC 3800, Australia","Monash University, Melbourne, VIC, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Monash University, Melbourne, VIC 3800, Australia","institution_ids":["https://openalex.org/I56590836"]},{"raw_affiliation_string":"Monash University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I56590836"]}]},{"author_position":"middle","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, Cambridge, MA 02139 USA","Massachusetts Institute of Technology, Cambridge, MA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Massachusetts Institute of Technology, Cambridge, MA 02139 USA","institution_ids":["https://openalex.org/I63966007"]},{"raw_affiliation_string":"Massachusetts Institute of Technology, Cambridge, MA, USA","institution_ids":["https://openalex.org/I63966007"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108353611","display_name":"E. G. Njoku","orcid":"https://orcid.org/0009-0007-8460-9823"},"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":false,"raw_author_name":"Eni G. Njoku","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015820551","display_name":"Peggy O\u2019Neill","orcid":"https://orcid.org/0000-0002-2596-8670"},"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":"Peggy E. O'Neill","raw_affiliation_strings":["NASA Goddard Space Flight Center, Greenbelt, MD 20771 USA","NASA Goddard Space Flight Center, Greenbelt, MD, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NASA Goddard Space Flight Center, Greenbelt, MD 20771 USA","institution_ids":["https://openalex.org/I1306266525"]},{"raw_affiliation_string":"NASA Goddard Space Flight Center, Greenbelt, MD, USA","institution_ids":["https://openalex.org/I1306266525"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006211721","display_name":"Simon Yueh","orcid":"https://orcid.org/0000-0001-7061-5295"},"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":false,"raw_author_name":"Simon H. Yueh","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA","institution_ids":["https://openalex.org/I1334627681"]},{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]}],"institutions":[],"countries_distinct_count":5,"institutions_distinct_count":23,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":6.1674,"has_fulltext":false,"cited_by_count":96,"citation_normalized_percentile":{"value":0.97088998,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"55","issue":"4","first_page":"1897","last_page":"1914"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11312","display_name":"Soil Moisture and Remote Sensing","score":1.0,"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":1.0,"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":0.9987999796867371,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/environmental-science","display_name":"Environmental science","score":0.7547891139984131},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.7232481837272644},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.7098367214202881},{"id":"https://openalex.org/keywords/water-content","display_name":"Water content","score":0.6698416471481323},{"id":"https://openalex.org/keywords/vegetation","display_name":"Vegetation (pathology)","score":0.6069483160972595},{"id":"https://openalex.org/keywords/terrain","display_name":"Terrain","score":0.5553334951400757},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.5287848114967346},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.5215599536895752},{"id":"https://openalex.org/keywords/surface-roughness","display_name":"Surface roughness","score":0.5002601146697998},{"id":"https://openalex.org/keywords/soil-science","display_name":"Soil science","score":0.3826696276664734},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.21263855695724487},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.10335084795951843},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.08975139260292053},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.08594831824302673}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7547891139984131},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7232481837272644},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.7098367214202881},{"id":"https://openalex.org/C24939127","wikidata":"https://www.wikidata.org/wiki/Q373499","display_name":"Water content","level":2,"score":0.6698416471481323},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.6069483160972595},{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.5553334951400757},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.5287848114967346},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5215599536895752},{"id":"https://openalex.org/C107365816","wikidata":"https://www.wikidata.org/wiki/Q114817","display_name":"Surface roughness","level":2,"score":0.5002601146697998},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.3826696276664734},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.21263855695724487},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.10335084795951843},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.08975139260292053},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.08594831824302673},{"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/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","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},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","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/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"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":3,"locations":[{"id":"doi:10.1109/tgrs.2016.2631126","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2016.2631126","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"},{"id":"pmid:31708601","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/31708601","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE transactions on geoscience and remote sensing : a publication of the IEEE Geoscience and Remote Sensing Society","raw_type":null},{"id":"pmh:oai:europepmc.org:5803969","is_oa":false,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/6839717","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Text"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","score":0.7400000095367432,"display_name":"Life in Land"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320332375","display_name":"Jet Propulsion Laboratory","ror":"https://ror.org/027k65916"},{"id":"https://openalex.org/F4320334704","display_name":"Australian Research Council","ror":"https://ror.org/05mmh0f86"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W1586942299","https://openalex.org/W1651208609","https://openalex.org/W1974127093","https://openalex.org/W1988128726","https://openalex.org/W1995589218","https://openalex.org/W1995598225","https://openalex.org/W2003962096","https://openalex.org/W2026604749","https://openalex.org/W2039348932","https://openalex.org/W2049567609","https://openalex.org/W2050890901","https://openalex.org/W2057775495","https://openalex.org/W2058925055","https://openalex.org/W2084793005","https://openalex.org/W2085401887","https://openalex.org/W2091160864","https://openalex.org/W2094728101","https://openalex.org/W2095543900","https://openalex.org/W2095896231","https://openalex.org/W2097790164","https://openalex.org/W2097816127","https://openalex.org/W2108990991","https://openalex.org/W2111537398","https://openalex.org/W2117466868","https://openalex.org/W2117554345","https://openalex.org/W2120116528","https://openalex.org/W2130746770","https://openalex.org/W2132977795","https://openalex.org/W2133478799","https://openalex.org/W2145665216","https://openalex.org/W2147820447","https://openalex.org/W2153206894","https://openalex.org/W2163444190","https://openalex.org/W2163642873","https://openalex.org/W2167731682","https://openalex.org/W2168219817","https://openalex.org/W2188767531","https://openalex.org/W2279678581","https://openalex.org/W2291523630","https://openalex.org/W2313470070","https://openalex.org/W2321844676","https://openalex.org/W2481897771","https://openalex.org/W2507920412","https://openalex.org/W2589687180","https://openalex.org/W2788187750"],"related_works":["https://openalex.org/W1992962589","https://openalex.org/W3032871857","https://openalex.org/W1743191351","https://openalex.org/W3104633800","https://openalex.org/W2914059119","https://openalex.org/W3023567978","https://openalex.org/W2069184433","https://openalex.org/W3044778482","https://openalex.org/W3040494141","https://openalex.org/W4384026392"],"abstract_inverted_index":{"This":[0],"paper":[1,108],"evaluates":[2],"the":[3,9,31,53,90,100,114,118,136,151,189,252,270],"retrieval":[4,129,268,278],"of":[5,59,70,92,120,153,169,188,217,241,255,272,290],"soil":[6,43,85,171,285,291],"moisture":[7,44,86,212,286],"in":[8,52,103,117,135],"top":[10],"5-cm":[11],"layer":[12],"at":[13,160],"3-km":[14],"spatial":[15],"resolution":[16],"using":[17,46,79],"L-band":[18,280],"dual-copolarized":[19],"Soil":[20,211],"Moisture":[21],"Active-Passive":[22],"(SMAP)":[23],"synthetic":[24],"aperture":[25],"radar":[26,47,71],"(SAR)":[27],"data":[28,116,282],"that":[29],"mapped":[30],"globe":[32],"every":[33],"three":[34],"days":[35],"from":[36],"mid-April":[37],"to":[38,56,83,197,244],"early":[39],"July,":[40],"2015.":[41],"Surface":[42],"retrievals":[45,157,213],"observations":[48,147],"have":[49,214],"been":[50],"challenging":[51],"past":[54,101],"due":[55],"complicating":[57],"factors":[58],"surface":[60,293],"roughness":[61,94],"and":[62,95,125,146,148,172,183,204,238,295],"vegetation":[63,75,126,154,173],"scattering.":[64],"Here,":[65],"physically":[66,274],"based":[67,275],"forward":[68,137,190],"models":[69,191],"scattering":[72],"for":[73,89,208,283],"individual":[74],"types":[76],"are":[77,158],"inverted":[78],"a":[80,110,166,239,273],"time-series":[81],"approach":[82],"retrieve":[84],"while":[87],"correcting":[88],"effects":[91],"static":[93],"dynamic":[96],"vegetation.":[97,296],"Compared":[98],"with":[99,113,194,279],"studies":[102],"homogeneous":[104],"field":[105],"scales,":[106],"this":[107],"performs":[109],"stringent":[111],"test":[112],"satellite":[115],"presence":[119],"terrain":[121],"slope,":[122],"subpixel":[123],"heterogeneity,":[124],"growth.":[127],"The":[128,156,186,266],"process":[130],"also":[131],"addresses":[132],"any":[133,141],"deficiencies":[134],"model":[138,145],"by":[139,149],"removing":[140],"time-averaged":[142],"bias":[143],"between":[144],"adjusting":[150],"strength":[152],"contributions.":[155],"assessed":[159],"14":[161],"core":[162],"validation":[163],"sites":[164],"representing":[165],"wide":[167],"range":[168],"global":[170],"conditions":[174,289],"over":[175,287],"grass,":[176],"pasture,":[177],"shrub,":[178],"woody":[179],"savanna,":[180],"corn,":[181],"wheat,":[182],"soybean":[184],"fields.":[185],"predictions":[187],"used":[192],"agree":[193],"SMAP":[195],"measurements":[196],"within":[198],"0.5":[199],"dB":[200,206],"unbiased-root-mean-square":[201],"error":[202],"(ubRMSE)":[203],"\u22120.05":[205],"(bias)":[207],"both":[209],"copolarizations.":[210],"an":[215],"accuracy":[216,253],"0.052":[218],"m":[219,229,257],"<sup":[220,224,230,234,258,262],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[221,225,231,235,246,259,263],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">3</sup>":[222,226,232,236,260,264],"/m":[223,233,261],"ubRMSE,":[227],"\u22120.015":[228],"bias,":[237],"correlation":[240],"0.50,":[242],"compared":[243],"<italic":[245],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">in":[247],"situ</i>":[248],"measurements,":[249],"thus":[250],"meeting":[251],"target":[254],"0.06":[256],"ubRMSE.":[265],"successful":[267],"demonstrates":[269],"feasibility":[271],"time":[276],"series":[277],"SAR":[281],"characterizing":[284],"diverse":[288],"moisture,":[292],"roughness,":[294]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":12},{"year":2022,"cited_by_count":14},{"year":2021,"cited_by_count":17},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":16},{"year":2018,"cited_by_count":11},{"year":2017,"cited_by_count":5}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}