{"id":"https://openalex.org/W2116976606","doi":"https://doi.org/10.1109/igarss.2002.1025748","title":"Sub-pixel correction in comparison between in situ and satellite derived spectral reflectance","display_name":"Sub-pixel correction in comparison between in situ and satellite derived spectral reflectance","publication_year":2003,"publication_date":"2003-10-01","ids":{"openalex":"https://openalex.org/W2116976606","doi":"https://doi.org/10.1109/igarss.2002.1025748","mag":"2116976606"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2002.1025748","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2002.1025748","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"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/A5013068067","display_name":"Xiaobing Zhou","orcid":"https://orcid.org/0000-0002-4135-7634"},"institutions":[{"id":"https://openalex.org/I141472210","display_name":"University of Alaska Fairbanks","ror":"https://ror.org/01j7nq853","country_code":"US","type":"education","lineage":["https://openalex.org/I141472210"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Xiaobing Zhou","raw_affiliation_strings":["Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, AK, USA","Geophys. Inst., Alaska Univ., Fairbanks, AK, USA"],"affiliations":[{"raw_affiliation_string":"Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, AK, USA","institution_ids":["https://openalex.org/I141472210"]},{"raw_affiliation_string":"Geophys. Inst., Alaska Univ., Fairbanks, AK, USA","institution_ids":["https://openalex.org/I141472210"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085599382","display_name":"Shusun Li","orcid":null},"institutions":[{"id":"https://openalex.org/I141472210","display_name":"University of Alaska Fairbanks","ror":"https://ror.org/01j7nq853","country_code":"US","type":"education","lineage":["https://openalex.org/I141472210"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shusun Li","raw_affiliation_strings":["Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, AK, USA","Geophys. Inst., Alaska Univ., Fairbanks, AK, USA"],"affiliations":[{"raw_affiliation_string":"Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, AK, USA","institution_ids":["https://openalex.org/I141472210"]},{"raw_affiliation_string":"Geophys. Inst., Alaska Univ., Fairbanks, AK, USA","institution_ids":["https://openalex.org/I141472210"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5013068067"],"corresponding_institution_ids":["https://openalex.org/I141472210"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.12366586,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"2","issue":null,"first_page":"976","last_page":"978"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10644","display_name":"Cryospheric studies and observations","score":0.996999979019165,"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/T10644","display_name":"Cryospheric studies and observations","score":0.996999979019165,"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/T12019","display_name":"Calibration and Measurement Techniques","score":0.9952999949455261,"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"}},{"id":"https://openalex.org/T11588","display_name":"Atmospheric and Environmental Gas Dynamics","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"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/remote-sensing","display_name":"Remote sensing","score":0.8797606229782104},{"id":"https://openalex.org/keywords/spectroradiometer","display_name":"Spectroradiometer","score":0.7486979961395264},{"id":"https://openalex.org/keywords/moderate-resolution-imaging-spectroradiometer","display_name":"Moderate-resolution imaging spectroradiometer","score":0.6972623467445374},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.6722140312194824},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.6581343412399292},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5259675979614258},{"id":"https://openalex.org/keywords/snow","display_name":"Snow","score":0.5054008960723877},{"id":"https://openalex.org/keywords/bidirectional-reflectance-distribution-function","display_name":"Bidirectional reflectance distribution function","score":0.5022282600402832},{"id":"https://openalex.org/keywords/radiometer","display_name":"Radiometer","score":0.49265629053115845},{"id":"https://openalex.org/keywords/advanced-very-high-resolution-radiometer","display_name":"Advanced very-high-resolution radiometer","score":0.47335052490234375},{"id":"https://openalex.org/keywords/atmospheric-correction","display_name":"Atmospheric correction","score":0.4563404619693756},{"id":"https://openalex.org/keywords/radiometry","display_name":"Radiometry","score":0.43970152735710144},{"id":"https://openalex.org/keywords/spectral-bands","display_name":"Spectral bands","score":0.433363139629364},{"id":"https://openalex.org/keywords/albedo","display_name":"Albedo (alchemy)","score":0.43102583289146423},{"id":"https://openalex.org/keywords/image-resolution","display_name":"Image resolution","score":0.42500898241996765},{"id":"https://openalex.org/keywords/reflectivity","display_name":"Reflectivity","score":0.3966135084629059},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.3139720857143402},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.23570799827575684},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1930008828639984},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.16940465569496155}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.8797606229782104},{"id":"https://openalex.org/C130066347","wikidata":"https://www.wikidata.org/wiki/Q680509","display_name":"Spectroradiometer","level":3,"score":0.7486979961395264},{"id":"https://openalex.org/C2777007095","wikidata":"https://www.wikidata.org/wiki/Q676840","display_name":"Moderate-resolution imaging spectroradiometer","level":3,"score":0.6972623467445374},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.6722140312194824},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.6581343412399292},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5259675979614258},{"id":"https://openalex.org/C197046000","wikidata":"https://www.wikidata.org/wiki/Q7561","display_name":"Snow","level":2,"score":0.5054008960723877},{"id":"https://openalex.org/C151596937","wikidata":"https://www.wikidata.org/wiki/Q856980","display_name":"Bidirectional reflectance distribution function","level":3,"score":0.5022282600402832},{"id":"https://openalex.org/C120189094","wikidata":"https://www.wikidata.org/wiki/Q850281","display_name":"Radiometer","level":2,"score":0.49265629053115845},{"id":"https://openalex.org/C2777480484","wikidata":"https://www.wikidata.org/wiki/Q300146","display_name":"Advanced very-high-resolution radiometer","level":3,"score":0.47335052490234375},{"id":"https://openalex.org/C2778329001","wikidata":"https://www.wikidata.org/wiki/Q4817104","display_name":"Atmospheric correction","level":3,"score":0.4563404619693756},{"id":"https://openalex.org/C87456703","wikidata":"https://www.wikidata.org/wiki/Q247760","display_name":"Radiometry","level":2,"score":0.43970152735710144},{"id":"https://openalex.org/C114700698","wikidata":"https://www.wikidata.org/wiki/Q2882278","display_name":"Spectral bands","level":2,"score":0.433363139629364},{"id":"https://openalex.org/C195886398","wikidata":"https://www.wikidata.org/wiki/Q2110050","display_name":"Albedo (alchemy)","level":3,"score":0.43102583289146423},{"id":"https://openalex.org/C205372480","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"Image resolution","level":2,"score":0.42500898241996765},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.3966135084629059},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.3139720857143402},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.23570799827575684},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1930008828639984},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.16940465569496155},{"id":"https://openalex.org/C52119013","wikidata":"https://www.wikidata.org/wiki/Q50637","display_name":"Art history","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C554144382","wikidata":"https://www.wikidata.org/wiki/Q213156","display_name":"Performance art","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2002.1025748","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2002.1025748","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8600000143051147,"display_name":"Life below water","id":"https://metadata.un.org/sdg/14"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W1971167037","https://openalex.org/W2004399829","https://openalex.org/W2010946568","https://openalex.org/W2100052788","https://openalex.org/W2125763679","https://openalex.org/W2173420326"],"related_works":["https://openalex.org/W2348693871","https://openalex.org/W2171182724","https://openalex.org/W2138666440","https://openalex.org/W4303980425","https://openalex.org/W2156260485","https://openalex.org/W319201275","https://openalex.org/W2104982938","https://openalex.org/W2107769888","https://openalex.org/W2168366069","https://openalex.org/W200080126"],"abstract_inverted_index":{"In":[0],"comparison":[1,72],"between":[2,74],"in":[3,70,75,86,95,155],"situ":[4,76,96],"and":[5,77,83,112,133,153,182],"satellite-derived":[6,205],"spectral":[7,79,131,151,171,200],"reflectance":[8,117,135,152,187],"so":[9,185,207],"as":[10,45,141],"to":[11],"validate":[12],"a":[13,30,71,190],"newly":[14],"launched":[15],"satellite":[16,35],"sensor,":[17,36],"the":[18,22,34,46,53,87,94,102,106,123,137,156,165,209],"difficulty":[19],"is":[20,25,98,126,193,211],"that":[21,186,208],"ground":[23,170],"measurement":[24,97],"generally":[26],"carried":[27],"out":[28],"at":[29,136,189],"higher":[31],"resolution":[32,42],"than":[33],"especially":[37],"for":[38,122,164],"moderate":[39],"or":[40,52],"high":[41],"sensors":[43],"such":[44],"Moderate":[47],"Resolution":[48,57],"Imaging":[49],"Spectroradiometer":[50],"(MODIS)":[51],"Advanced":[54],"Very":[55],"High":[56],"Radiometer":[58],"(AVHRR)":[59],"etc.":[60],"To":[61],"overcome":[62],"this":[63],"difficulty,":[64],"we":[65],"adopt":[66],"sub-pixel":[67,191],"correction":[68],"method":[69],"study":[73],"MODIS-derived":[78],"reflectances":[80],"of":[81,93,108,158,197],"snow":[82],"sea":[84],"ice":[85,160,180],"Amundsen":[88],"Sea,":[89],"Antarctica.":[90],"The":[91,129,149],"position":[92],"accurately":[99],"located":[100],"within":[101],"imagery":[103],"granule":[104,121],"using":[105],"combination":[107],"small":[109],"angle":[110],"approximation":[111],"direct":[113],"matching":[114],"algorithms.":[115],"Apparent":[116],"retrieved":[118],"from":[119,145,169],"MODIS":[120,142,167,199],"station":[124,161],"pixel":[125,168],"atmospherically":[127],"corrected.":[128,195],"corresponding":[130,166],"albedo":[132,154],"directional":[134],"same":[138],"viewing":[139],"geometry":[140],"are":[143,162,202],"derived":[144],"ground-based":[146,198],"spectroradiometer":[147],"measurements.":[148],"averaged":[150],"vicinity":[157],"each":[159],"simulated":[163],"measurements":[172],"by":[173],"weighing":[174],"over":[175],"different":[176],"surface":[177],"types":[178,181],"(various":[179],"open":[183],"water)":[184],"difference":[188],"level":[192],"appropriately":[194],"Values":[196],"simulation":[201],"compared":[203],"with":[204],"values":[206],"discrepancy":[210],"estimated.":[212]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}