{"id":"https://openalex.org/W1503827145","doi":"https://doi.org/10.1109/igarss.2004.1369008","title":"Spectral mixture analysis of aster image to geobotanical investigation between ultramafic and mafic rocks from Niquelandia, Brazil","display_name":"Spectral mixture analysis of aster image to geobotanical investigation between ultramafic and mafic rocks from Niquelandia, Brazil","publication_year":2004,"publication_date":"2004-12-23","ids":{"openalex":"https://openalex.org/W1503827145","doi":"https://doi.org/10.1109/igarss.2004.1369008","mag":"1503827145"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2004.1369008","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2004.1369008","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004","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":null,"display_name":"Renato Fontes Osmar Abilio de_Carvalho","orcid":null},"institutions":[{"id":"https://openalex.org/I150729083","display_name":"Universidade de Bras\u00edlia","ror":"https://ror.org/02xfp8v59","country_code":"BR","type":"education","lineage":["https://openalex.org/I150729083"]}],"countries":["BR"],"is_corresponding":true,"raw_author_name":"Renato Fontes Osmar Abilio de_Carvalho","raw_affiliation_strings":["Dept. de Geogr., Brasilia Univ"],"affiliations":[{"raw_affiliation_string":"Dept. de Geogr., Brasilia Univ","institution_ids":["https://openalex.org/I150729083"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I150729083"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.05822644,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"1","issue":null,"first_page":"250","last_page":"253"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12157","display_name":"Geochemistry and Geologic Mapping","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12157","display_name":"Geochemistry and Geologic Mapping","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10001","display_name":"Geological and Geochemical Analysis","score":0.9779000282287598,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T11852","display_name":"Clay minerals and soil interactions","score":0.9384999871253967,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/endmember","display_name":"Endmember","score":0.887508749961853},{"id":"https://openalex.org/keywords/ultramafic-rock","display_name":"Ultramafic rock","score":0.8527419567108154},{"id":"https://openalex.org/keywords/mafic","display_name":"Mafic","score":0.8099061250686646},{"id":"https://openalex.org/keywords/vnir","display_name":"VNIR","score":0.7166171073913574},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.7159706354141235},{"id":"https://openalex.org/keywords/vegetation","display_name":"Vegetation (pathology)","score":0.6256364583969116},{"id":"https://openalex.org/keywords/advanced-spaceborne-thermal-emission-and-reflection-radiometer","display_name":"Advanced Spaceborne Thermal Emission and Reflection Radiometer","score":0.5423158407211304},{"id":"https://openalex.org/keywords/massif","display_name":"Massif","score":0.4109839200973511},{"id":"https://openalex.org/keywords/geochemistry","display_name":"Geochemistry","score":0.3879665732383728},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.308347225189209}],"concepts":[{"id":"https://openalex.org/C58237817","wikidata":"https://www.wikidata.org/wiki/Q5376204","display_name":"Endmember","level":3,"score":0.887508749961853},{"id":"https://openalex.org/C195081551","wikidata":"https://www.wikidata.org/wiki/Q1143398","display_name":"Ultramafic rock","level":2,"score":0.8527419567108154},{"id":"https://openalex.org/C167284885","wikidata":"https://www.wikidata.org/wiki/Q764372","display_name":"Mafic","level":2,"score":0.8099061250686646},{"id":"https://openalex.org/C5457282","wikidata":"https://www.wikidata.org/wiki/Q7907352","display_name":"VNIR","level":3,"score":0.7166171073913574},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.7159706354141235},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.6256364583969116},{"id":"https://openalex.org/C13772937","wikidata":"https://www.wikidata.org/wiki/Q298019","display_name":"Advanced Spaceborne Thermal Emission and Reflection Radiometer","level":3,"score":0.5423158407211304},{"id":"https://openalex.org/C160776313","wikidata":"https://www.wikidata.org/wiki/Q1061151","display_name":"Massif","level":2,"score":0.4109839200973511},{"id":"https://openalex.org/C17409809","wikidata":"https://www.wikidata.org/wiki/Q161764","display_name":"Geochemistry","level":1,"score":0.3879665732383728},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.308347225189209},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"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/C181843262","wikidata":"https://www.wikidata.org/wiki/Q640492","display_name":"Digital elevation model","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2004.1369008","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2004.1369008","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","score":0.6000000238418579,"display_name":"Life in Land"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W130108540","https://openalex.org/W270331824","https://openalex.org/W1582058549","https://openalex.org/W1597216286","https://openalex.org/W1895298014","https://openalex.org/W1973338979","https://openalex.org/W2015861352","https://openalex.org/W2046404820","https://openalex.org/W2136625467","https://openalex.org/W2230171042","https://openalex.org/W2524293165","https://openalex.org/W2938952947","https://openalex.org/W3203960633","https://openalex.org/W6609956155","https://openalex.org/W6634825034"],"related_works":["https://openalex.org/W2387503616","https://openalex.org/W4226514579","https://openalex.org/W2991599033","https://openalex.org/W2106014979","https://openalex.org/W2366035199","https://openalex.org/W2158309513","https://openalex.org/W2047158605","https://openalex.org/W4390064703","https://openalex.org/W118354907","https://openalex.org/W4312335207"],"abstract_inverted_index":{"The":[0,27,45,93,123,196,216,228,306,317],"present":[1],"work":[2],"aims":[3],"to":[4,12,177,224,356],"evaluate":[5],"the":[6,9,30,35,39,80,100,128,134,137,145,149,154,165,172,225,242,255,259,262,280,290,300,303,312,330,333,339,342,346,350,359],"advantages":[7],"of":[8,38,41,61,97,112,136,159,174,241,299,319,341],"ASTER":[10],"sensor":[11],"detect":[13],"Brazilian":[14],"Savanna":[15],"vegetation":[16,98,119,321,325,334,362],"types":[17,158],"over":[18],"ultramafic":[19,113,155,182,367],"or":[20,368],"mafic":[21,369],"rocks":[22,114,151,370],"from":[23,181,258,366],"spectral":[24,212,277,307],"mixture":[25,213,314],"analysis.":[26],"study":[28,347],"area,":[29],"Niquelandia":[31,46,81,101,351],"Complex,":[32],"lies":[33],"in":[34,43,54,99,273,329,345,364],"central":[36,55],"portion":[37],"State":[40],"Goias":[42],"Brazil.":[44],"Complex":[47,82],"is":[48,67,327],"a":[49],"well-exposed":[50],"heavily":[51],"layered":[52,86],"intrusion":[53],"Brazil":[56],"that":[57,125],"comprises":[58],"an":[59],"area":[60,352],"about":[62],"1,800":[63],"square":[64],"km":[65,70],"and":[66,73,83,91,95,153,167,187,191,210,245,250,267,295,323],"approximately":[68],"15":[69],"thick.":[71],"Geology":[72],"petrology":[74],"studies":[75],"show":[76,103],"many":[77,175],"similarities":[78],"between":[79,265,332],"well-known":[84],"Precambrian":[85],"intrusions":[87],"such":[88],"as":[89],"Bushveld":[90],"Stillwater.":[92],"distribution":[94],"physiognomy":[96,135],"Massif":[102],"strong":[104],"geological":[105],"control.":[106],"In":[107],"this":[108],"site,":[109],"extensive":[110],"areas":[111],"are":[115,189],"covered":[116],"by":[117,121,279,289],"herbaceous":[118],"dominated":[120],"grasses.":[122],"fires":[124,142],"occur":[126],"during":[127],"driest":[129],"months":[130],"(June-August),":[131],"might":[132],"influence":[133],"vegetation.":[138],"However,":[139],"not":[140],"only":[141],"can":[143,161,199],"explain":[144],"abrupt":[146],"limit":[147],"among":[148],"gabroic":[150],"(mafic)":[152],"substrate.":[156],"Different":[157],"forests":[160],"be":[162,200],"found":[163],"along":[164],"streams":[166],"valleys.":[168],"Their":[169],"existence":[170],"demonstrates":[171],"ability":[173],"species":[176],"tolerate":[178],"soils":[179,365],"originating":[180],"rock":[183],"if":[184],"soil":[185],"depth":[186],"humidity":[188],"appropriate":[190],"some":[192],"fire":[193],"protection":[194],"exists.":[195],"methodology":[197],"used":[198],"divided":[201],"into":[202],"three":[203,274],"stages:":[204],"(a)":[205],"pre-processing,":[206],"(b)":[207],"endmember":[208],"identification":[209,298,340],"(c)":[211],"analysis":[214,315],"(SMA).":[215,316],"images":[217],"were":[218,271],"acquired":[219],"with":[220],"atmosphere":[221],"correction":[222],"relative":[223],"AST07":[226],"product.":[227],"Level":[229],"2":[230],"surface":[231,237],"reflectance":[232,238],"data":[233],"set":[234],"(AST07)":[235],"contains":[236],"for":[239,358],"each":[240],"nine":[243],"VNIR":[244,266],"SWIR":[246,260,268],"bands":[247],"at":[248],"15-m":[249],"30-m":[251],"resolutions,":[252],"respectively.":[253],"Duplicating":[254],"pixels":[256],"size":[257],"image":[261],"spatial":[263,287],"dimensions":[264],"images.":[269],"Endmembers":[270],"detected":[272],"steps:":[275],"(1)":[276],"reduction":[278,288],"minimum":[281],"noise":[282],"fraction":[283],"(MNF)":[284],"transformation,":[285],"(2)":[286],"Pixel":[291],"Purity":[292],"Index":[293],"(PPI)":[294],"(3)":[296],"manual":[297],"endmembers":[301],"using":[302,311],"N-dimensional":[304],"visualizer.":[305],"classification":[308],"was":[309,354],"made":[310],"Spectral":[313],"amount":[318],"nonphotosynthetic":[320],"(NPV)":[322],"photosynthetic":[324],"(PV)":[326],"preponderant":[328],"distinction":[331],"types.":[335],"These":[336],"procedures":[337],"allowed":[338],"main":[343],"scenarios":[344],"area.":[348],"For":[349],"it":[353],"possible":[355],"separate":[357],"SMA":[360],"components":[361],"patterns":[363]},"counts_by_year":[{"year":2015,"cited_by_count":1}],"updated_date":"2026-04-16T08:26:57.006410","created_date":"2016-06-24T00:00:00"}
