{"id":"https://openalex.org/W2098227694","doi":"https://doi.org/10.1109/igarss.2002.1026513","title":"The importance of early morning local overpass times for BRDF retrieval, modeling of spectral reflectance and fAPAR estimation","display_name":"The importance of early morning local overpass times for BRDF retrieval, modeling of spectral reflectance and fAPAR estimation","publication_year":2003,"publication_date":"2003-06-25","ids":{"openalex":"https://openalex.org/W2098227694","doi":"https://doi.org/10.1109/igarss.2002.1026513","mag":"2098227694"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2002.1026513","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2002.1026513","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/A5018995437","display_name":"Mark Chopping","orcid":"https://orcid.org/0000-0001-9622-2772"},"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"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"M.J. Chopping","raw_affiliation_strings":["ARS Jornada Experimental Range, USDA, Las Cruces, NM, USA","USDA-ARS Jornada Exp. Range, Las Cruces, NM, USA"],"affiliations":[{"raw_affiliation_string":"ARS Jornada Experimental Range, USDA, Las Cruces, NM, USA","institution_ids":["https://openalex.org/I1312222531"]},{"raw_affiliation_string":"USDA-ARS Jornada Exp. Range, Las Cruces, NM, USA","institution_ids":["https://openalex.org/I1312222531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053645213","display_name":"A. Rango","orcid":"https://orcid.org/0000-0002-5503-7789"},"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"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"A. Rango","raw_affiliation_strings":["ARS Jornada Experimental Range, USDA, Las Cruces, NM, USA","USDA-ARS Jornada Exp. Range, Las Cruces, NM, USA"],"affiliations":[{"raw_affiliation_string":"ARS Jornada Experimental Range, USDA, Las Cruces, NM, USA","institution_ids":["https://openalex.org/I1312222531"]},{"raw_affiliation_string":"USDA-ARS Jornada Exp. Range, Las Cruces, NM, USA","institution_ids":["https://openalex.org/I1312222531"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081435513","display_name":"E. G\u00f3mez\u2010Landesa","orcid":null},"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"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E. Gomez-Landesa","raw_affiliation_strings":["ARS Jornada Experimental Range, USDA, Las Cruces, NM, USA","USDA-ARS Jornada Exp. Range, Las Cruces, NM, USA"],"affiliations":[{"raw_affiliation_string":"ARS Jornada Experimental Range, USDA, Las Cruces, NM, USA","institution_ids":["https://openalex.org/I1312222531"]},{"raw_affiliation_string":"USDA-ARS Jornada Exp. Range, Las Cruces, NM, USA","institution_ids":["https://openalex.org/I1312222531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5018995437"],"corresponding_institution_ids":["https://openalex.org/I1312222531"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.14567942,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":"2264","last_page":"2266"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12019","display_name":"Calibration and Measurement Techniques","score":0.9959999918937683,"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"}},"topics":[{"id":"https://openalex.org/T12019","display_name":"Calibration and Measurement Techniques","score":0.9959999918937683,"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":0.9958000183105469,"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"}},{"id":"https://openalex.org/T11320","display_name":"Atmospheric Ozone and Climate","score":0.9955999851226807,"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/bidirectional-reflectance-distribution-function","display_name":"Bidirectional reflectance distribution function","score":0.8956369161605835},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.8066922426223755},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.6349103450775146},{"id":"https://openalex.org/keywords/zenith","display_name":"Zenith","score":0.6292699575424194},{"id":"https://openalex.org/keywords/radiometer","display_name":"Radiometer","score":0.6082369089126587},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.5704785585403442},{"id":"https://openalex.org/keywords/polar-orbit","display_name":"Polar orbit","score":0.5236520767211914},{"id":"https://openalex.org/keywords/radiometry","display_name":"Radiometry","score":0.5084754228591919},{"id":"https://openalex.org/keywords/nadir","display_name":"Nadir","score":0.49101805686950684},{"id":"https://openalex.org/keywords/radiance","display_name":"Radiance","score":0.4803551435470581},{"id":"https://openalex.org/keywords/orbital-mechanics","display_name":"Orbital mechanics","score":0.4566158652305603},{"id":"https://openalex.org/keywords/visible-infrared-imaging-radiometer-suite","display_name":"Visible Infrared Imaging Radiometer Suite","score":0.44959062337875366},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.3950543999671936},{"id":"https://openalex.org/keywords/reflectivity","display_name":"Reflectivity","score":0.26747748255729675},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.2030368149280548},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.18357574939727783},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.16850346326828003},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.0887557864189148}],"concepts":[{"id":"https://openalex.org/C151596937","wikidata":"https://www.wikidata.org/wiki/Q856980","display_name":"Bidirectional reflectance distribution function","level":3,"score":0.8956369161605835},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.8066922426223755},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.6349103450775146},{"id":"https://openalex.org/C53970728","wikidata":"https://www.wikidata.org/wiki/Q82806","display_name":"Zenith","level":2,"score":0.6292699575424194},{"id":"https://openalex.org/C120189094","wikidata":"https://www.wikidata.org/wiki/Q850281","display_name":"Radiometer","level":2,"score":0.6082369089126587},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5704785585403442},{"id":"https://openalex.org/C92328372","wikidata":"https://www.wikidata.org/wiki/Q746711","display_name":"Polar orbit","level":3,"score":0.5236520767211914},{"id":"https://openalex.org/C87456703","wikidata":"https://www.wikidata.org/wiki/Q247760","display_name":"Radiometry","level":2,"score":0.5084754228591919},{"id":"https://openalex.org/C88575799","wikidata":"https://www.wikidata.org/wiki/Q145825","display_name":"Nadir","level":3,"score":0.49101805686950684},{"id":"https://openalex.org/C23690007","wikidata":"https://www.wikidata.org/wiki/Q1411145","display_name":"Radiance","level":2,"score":0.4803551435470581},{"id":"https://openalex.org/C6629501","wikidata":"https://www.wikidata.org/wiki/Q842433","display_name":"Orbital mechanics","level":3,"score":0.4566158652305603},{"id":"https://openalex.org/C2777701342","wikidata":"https://www.wikidata.org/wiki/Q16948273","display_name":"Visible Infrared Imaging Radiometer Suite","level":3,"score":0.44959062337875366},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3950543999671936},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.26747748255729675},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.2030368149280548},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.18357574939727783},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.16850346326828003},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0887557864189148}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2002.1026513","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2002.1026513","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":0.5099999904632568,"display_name":"Life in Land","id":"https://metadata.un.org/sdg/15"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1976892847","https://openalex.org/W2019092234","https://openalex.org/W2025967407","https://openalex.org/W2034882520","https://openalex.org/W2126069941","https://openalex.org/W2134416701","https://openalex.org/W6678980102"],"related_works":["https://openalex.org/W2565705615","https://openalex.org/W2084142694","https://openalex.org/W2081538989","https://openalex.org/W2890917258","https://openalex.org/W2000433185","https://openalex.org/W1456042357","https://openalex.org/W2752150643","https://openalex.org/W2547503508","https://openalex.org/W2756565224","https://openalex.org/W2807601399"],"abstract_inverted_index":{"Blueprints":[0],"for":[1,129],"near-future":[2],"moderate":[3],"resolution":[4],"satellite-borne":[5],"sensor":[6,17],"systems":[7,91],"such":[8,97],"as":[9,48,50,98],"the":[10,19,52,62,85,100,125,152],"VIIRS":[11],"(Visible":[12],"Infrared":[13],"Imaging":[14],"Radiometer":[15,142],"Suite)":[16],"on":[18],"National":[20],"Polar-orbiting":[21],"Operational":[22],"Environmental":[23],"Satellite":[24],"System":[25],"(NPOESS)":[26],"do":[27],"not":[28],"include":[29],"plans":[30],"to":[31,60,133,150],"ensure":[32],"that":[33],"land":[34],"surface":[35],"observations":[36,110,159],"are":[37,148],"made":[38],"from":[39],"an":[40],"early":[41],"morning":[42],"(AM)":[43],"orbit":[44,127],"(07:30-08:30":[45],"local":[46],"time)":[47],"well":[49],"in":[51,92],"afternoon":[53],"(PM),":[54],"and":[55,89],"current":[56,88],"spaceborne":[57],"sensors":[58],"designed":[59],"sample":[61],"bidirectional":[63],"reflectance":[64],"distribution":[65],"function":[66],"(BRDF)":[67],"achieve":[68],"this":[69],"by":[70,124],"off-nadir":[71],"viewing":[72],"with":[73,158],"a":[74,135,161],"small":[75,162],"range":[76,163],"of":[77,87,102,109,155,164],"solar":[78],"zenith":[79],"angles":[80],"(SZA).":[81],"This":[82],"may":[83,119],"limit":[84],"utility":[86],"future":[90],"important":[93],"Earth":[94],"observation":[95],"applications":[96],"estimating":[99],"fraction":[101],"absorbed":[103],"photosynthetically-active":[104],"radiation":[105],"(fAPAR).":[106],"The":[107],"lack":[108],"at":[111,160],"50/spl":[112],"deg/":[113,118],"<":[114,116],"SZA":[115],"70/spl":[117],"only":[120],"be":[121],"partly":[122],"offset":[123],"09:30":[126],"foreseen":[128],"EUMETSAT's":[130],"METOP":[131],"satellite,":[132],"carry":[134],"third":[136],"generation":[137],"Advanced":[138],"Very":[139],"High":[140],"Resolution":[141],"(AVHRR).":[143],"Here":[144],"existing":[145],"AVHRR":[146],"data":[147],"used":[149],"examine":[151],"likely":[153],"impact":[154],"inverting":[156],"models":[157],"Sun":[165],"angles.":[166]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
