{"id":"https://openalex.org/W2121149854","doi":"https://doi.org/10.1109/igarss.2011.6049888","title":"Active and Passive multi-scale microwave remote sensing of the Alaska Ecological Transect: Application to SMAP freeze/thaw state validation planning","display_name":"Active and Passive multi-scale microwave remote sensing of the Alaska Ecological Transect: Application to SMAP freeze/thaw state validation planning","publication_year":2011,"publication_date":"2011-07-01","ids":{"openalex":"https://openalex.org/W2121149854","doi":"https://doi.org/10.1109/igarss.2011.6049888","mag":"2121149854"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2011.6049888","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2011.6049888","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 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/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":true,"raw_author_name":"Andreas Colliander","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"affiliations":[{"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/A5103453090","display_name":"Kyle C. McDonald","orcid":null},"institutions":[{"id":"https://openalex.org/I125687163","display_name":"City College of New York","ror":"https://ror.org/00wmhkr98","country_code":"US","type":"education","lineage":["https://openalex.org/I125687163"]},{"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":"Kyle McDonald","raw_affiliation_strings":["City College of New York, New York, NY, USA","Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"affiliations":[{"raw_affiliation_string":"City College of New York, New York, NY, USA","institution_ids":["https://openalex.org/I125687163"]},{"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/A5109887925","display_name":"R. Zimmerman","orcid":null},"institutions":[{"id":"https://openalex.org/I110079840","display_name":"University of Hohenheim","ror":"https://ror.org/00b1c9541","country_code":"DE","type":"education","lineage":["https://openalex.org/I110079840"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Reiner Zimmerman","raw_affiliation_strings":["University of Hohenheim, Stuttgart, Germany"],"affiliations":[{"raw_affiliation_string":"University of Hohenheim, Stuttgart, Germany","institution_ids":["https://openalex.org/I110079840"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016213145","display_name":"E. Podest","orcid":"https://orcid.org/0000-0002-8338-5369"},"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":"Erika Podest","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"affiliations":[{"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/A5048166665","display_name":"R. Schroeder","orcid":"https://orcid.org/0000-0003-4471-7348"},"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":"Ronny Schroeder","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"affiliations":[{"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/A5012801147","display_name":"John S. Kimball","orcid":"https://orcid.org/0000-0002-5493-5878"},"institutions":[{"id":"https://openalex.org/I6750721","display_name":"University of Montana","ror":"https://ror.org/0078xmk34","country_code":"US","type":"education","lineage":["https://openalex.org/I6750721"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"John Kimball","raw_affiliation_strings":["University of Montana, Missoula, MT, USA"],"affiliations":[{"raw_affiliation_string":"University of Montana, Missoula, MT, USA","institution_ids":["https://openalex.org/I6750721"]}]},{"author_position":"last","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 Njoku","raw_affiliation_strings":["Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA"],"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA","institution_ids":["https://openalex.org/I1334627681"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5008146196"],"corresponding_institution_ids":["https://openalex.org/I1334627681"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.14552056,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"3156","last_page":"3159"},"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/T11333","display_name":"Climate change and permafrost","score":0.9998000264167786,"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":0.9995999932289124,"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/remote-sensing","display_name":"Remote sensing","score":0.8246411085128784},{"id":"https://openalex.org/keywords/scatterometer","display_name":"Scatterometer","score":0.7410855889320374},{"id":"https://openalex.org/keywords/l-band","display_name":"L band","score":0.6866229176521301},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6815305948257446},{"id":"https://openalex.org/keywords/backscatter","display_name":"Backscatter (email)","score":0.6282820105552673},{"id":"https://openalex.org/keywords/radiometer","display_name":"Radiometer","score":0.6171821355819702},{"id":"https://openalex.org/keywords/brightness-temperature","display_name":"Brightness temperature","score":0.5778392553329468},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.568801760673523},{"id":"https://openalex.org/keywords/transect","display_name":"Transect","score":0.532997727394104},{"id":"https://openalex.org/keywords/radiometry","display_name":"Radiometry","score":0.5125045776367188},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.4798569083213806},{"id":"https://openalex.org/keywords/microwave-imaging","display_name":"Microwave imaging","score":0.45036599040031433},{"id":"https://openalex.org/keywords/microwave","display_name":"Microwave","score":0.4503428637981415},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.17675554752349854},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.17634999752044678}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.8246411085128784},{"id":"https://openalex.org/C2776212561","wikidata":"https://www.wikidata.org/wiki/Q905295","display_name":"Scatterometer","level":3,"score":0.7410855889320374},{"id":"https://openalex.org/C133969743","wikidata":"https://www.wikidata.org/wiki/Q2362353","display_name":"L band","level":2,"score":0.6866229176521301},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6815305948257446},{"id":"https://openalex.org/C30354325","wikidata":"https://www.wikidata.org/wiki/Q204667","display_name":"Backscatter (email)","level":3,"score":0.6282820105552673},{"id":"https://openalex.org/C120189094","wikidata":"https://www.wikidata.org/wiki/Q850281","display_name":"Radiometer","level":2,"score":0.6171821355819702},{"id":"https://openalex.org/C53802167","wikidata":"https://www.wikidata.org/wiki/Q4538627","display_name":"Brightness temperature","level":3,"score":0.5778392553329468},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.568801760673523},{"id":"https://openalex.org/C69661492","wikidata":"https://www.wikidata.org/wiki/Q1447141","display_name":"Transect","level":2,"score":0.532997727394104},{"id":"https://openalex.org/C87456703","wikidata":"https://www.wikidata.org/wiki/Q247760","display_name":"Radiometry","level":2,"score":0.5125045776367188},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.4798569083213806},{"id":"https://openalex.org/C2779885931","wikidata":"https://www.wikidata.org/wiki/Q17010029","display_name":"Microwave imaging","level":3,"score":0.45036599040031433},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.4503428637981415},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.17675554752349854},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.17634999752044678},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2011.6049888","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2011.6049888","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life below water","id":"https://metadata.un.org/sdg/14","score":0.6800000071525574}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1881894046","https://openalex.org/W1966652425","https://openalex.org/W2011911270","https://openalex.org/W2039348932","https://openalex.org/W2055597457","https://openalex.org/W2060476649","https://openalex.org/W2061505428","https://openalex.org/W2101322596","https://openalex.org/W2105503694","https://openalex.org/W3121584045","https://openalex.org/W6788338169"],"related_works":["https://openalex.org/W1699406428","https://openalex.org/W2126424122","https://openalex.org/W2103694249","https://openalex.org/W2547054481","https://openalex.org/W2089619618","https://openalex.org/W1500041264","https://openalex.org/W2162816005","https://openalex.org/W4389988106","https://openalex.org/W3001238613","https://openalex.org/W4399849877"],"abstract_inverted_index":{"The":[0,52,99],"calibration":[1],"and":[2,16,19,42,88,117,134],"validation":[3,122],"of":[4,8,24,29,32,39,54,62,119,128],"the":[5,33,43,47,60,63,84,95,106],"freeze/thaw":[6,40,140],"product":[7],"NASA's":[9],"proposed":[10],"L-band":[11,64,77,107,129],"SMAP":[12,125],"(Soil":[13],"Moisture":[14],"Active":[15],"Passive)":[17],"radar":[18,65],"radiometer":[20],"mission":[21],"requires":[22,126],"execution":[23],"a":[25],"strategy":[26,123],"for":[27,124],"characterization":[28],"thermal":[30],"regime":[31],"relevant":[34],"landscape":[35,103,139],"elements":[36,104],"in":[37],"terms":[38],"state":[41],"associated":[44],"relationship":[45],"to":[46,58],"microwave":[48],"remote":[49],"sensing":[50],"signature.":[51],"goal":[53],"this":[55],"study":[56],"is":[57],"improve":[59],"understanding":[61],"backscatter":[66,78,82,108],"processes":[67],"over":[68],"boreal":[69],"landscapes":[70],"by":[71],"comparing":[72],"ALOS":[73],"PALSAR":[74],"high":[75],"resolution":[76],"images":[79],"with":[80,138],"Ku-band":[81],"from":[83,94,111],"SeaWinds":[85],"QuikSCAT":[86],"scatterometer":[87],"C-,":[89],"Xand":[90],"Ka-band":[91],"brightness":[92],"temperatures":[93],"Aqua":[96],"AMSR-E":[97],"radiometer.":[98],"results":[100],"show":[101],"that":[102],"driving":[105],"are":[109],"different":[110],"those":[112],"at":[113,131],"higher":[114],"(Ku-band)":[115],"frequencies":[116],"establishment":[118],"an":[120],"optimal":[121],"investigation":[127],"measurements":[130],"spatial":[132],"scales":[133],"temporal":[135],"fidelity":[136],"commensurate":[137],"variability.":[141]},"counts_by_year":[{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
