{"id":"https://openalex.org/W2972278347","doi":"https://doi.org/10.1109/agro-geoinformatics.2019.8820219","title":"Global vegetative drought trend and variability analysis from long-term remotely sensed data","display_name":"Global vegetative drought trend and variability analysis from long-term remotely sensed data","publication_year":2019,"publication_date":"2019-07-01","ids":{"openalex":"https://openalex.org/W2972278347","doi":"https://doi.org/10.1109/agro-geoinformatics.2019.8820219","mag":"2972278347"},"language":"en","primary_location":{"id":"doi:10.1109/agro-geoinformatics.2019.8820219","is_oa":false,"landing_page_url":"https://doi.org/10.1109/agro-geoinformatics.2019.8820219","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5083293604","display_name":"Shaobo Zhong","orcid":"https://orcid.org/0000-0003-2750-4172"},"institutions":[{"id":"https://openalex.org/I4210138233","display_name":"Beijing Urban Systems Engineering Research Center","ror":"https://ror.org/03cxfcq46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210138233"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shaobo Zhong","raw_affiliation_strings":["Urban Operations Research Department, Beijing Research Center of Urban Systems Engineering, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Urban Operations Research Department, Beijing Research Center of Urban Systems Engineering, Beijing, China","institution_ids":["https://openalex.org/I4210138233"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102333270","display_name":"Zhanya Xu","orcid":null},"institutions":[{"id":"https://openalex.org/I3124059619","display_name":"China University of Geosciences","ror":"https://ror.org/04gcegc37","country_code":"CN","type":"education","lineage":["https://openalex.org/I3124059619"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhanya Xu","raw_affiliation_strings":["Faculty of Information Engineering, China University of Geosciences, Wuhan, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Information Engineering, China University of Geosciences, Wuhan, China","institution_ids":["https://openalex.org/I3124059619"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014889794","display_name":"Ziheng Sun","orcid":"https://orcid.org/0000-0001-9810-0023"},"institutions":[{"id":"https://openalex.org/I162714631","display_name":"George Mason University","ror":"https://ror.org/02jqj7156","country_code":"US","type":"education","lineage":["https://openalex.org/I162714631"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ziheng Sun","raw_affiliation_strings":["Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA","institution_ids":["https://openalex.org/I162714631"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025989584","display_name":"Genong Yu","orcid":"https://orcid.org/0000-0002-3830-4654"},"institutions":[{"id":"https://openalex.org/I162714631","display_name":"George Mason University","ror":"https://ror.org/02jqj7156","country_code":"US","type":"education","lineage":["https://openalex.org/I162714631"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Eugene Yu","raw_affiliation_strings":["Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA","institution_ids":["https://openalex.org/I162714631"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077156991","display_name":"Liying Guo","orcid":"https://orcid.org/0000-0001-9684-0204"},"institutions":[{"id":"https://openalex.org/I162714631","display_name":"George Mason University","ror":"https://ror.org/02jqj7156","country_code":"US","type":"education","lineage":["https://openalex.org/I162714631"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Liying Guo","raw_affiliation_strings":["Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA","institution_ids":["https://openalex.org/I162714631"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012116347","display_name":"Liping Di","orcid":"https://orcid.org/0000-0002-3953-9965"},"institutions":[{"id":"https://openalex.org/I162714631","display_name":"George Mason University","ror":"https://ror.org/02jqj7156","country_code":"US","type":"education","lineage":["https://openalex.org/I162714631"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Liping Di","raw_affiliation_strings":["Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Spatial Information Science and Systems, George Mason University, Fairfax, USA","institution_ids":["https://openalex.org/I162714631"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11186","display_name":"Hydrology and Drought Analysis","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T11186","display_name":"Hydrology and Drought Analysis","score":1.0,"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/T10029","display_name":"Climate variability and models","score":0.9986000061035156,"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/T11234","display_name":"Precipitation Measurement and Analysis","score":0.9958999752998352,"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/trend-analysis","display_name":"Trend analysis","score":0.7831142544746399},{"id":"https://openalex.org/keywords/climatology","display_name":"Climatology","score":0.606564462184906},{"id":"https://openalex.org/keywords/northern-hemisphere","display_name":"Northern Hemisphere","score":0.5989812612533569},{"id":"https://openalex.org/keywords/southern-hemisphere","display_name":"Southern Hemisphere","score":0.5919057130813599},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5905691385269165},{"id":"https://openalex.org/keywords/latitude","display_name":"Latitude","score":0.5523058176040649},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.49625664949417114},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.47484734654426575},{"id":"https://openalex.org/keywords/climate-change","display_name":"Climate change","score":0.4495859146118164},{"id":"https://openalex.org/keywords/physical-geography","display_name":"Physical geography","score":0.4401562213897705},{"id":"https://openalex.org/keywords/global-warming","display_name":"Global warming","score":0.41841447353363037},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.3459586501121521},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.17006924748420715},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.09719833731651306},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.0884459912776947},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.06280794739723206}],"concepts":[{"id":"https://openalex.org/C127142870","wikidata":"https://www.wikidata.org/wiki/Q7838279","display_name":"Trend analysis","level":2,"score":0.7831142544746399},{"id":"https://openalex.org/C49204034","wikidata":"https://www.wikidata.org/wiki/Q52139","display_name":"Climatology","level":1,"score":0.606564462184906},{"id":"https://openalex.org/C2778835443","wikidata":"https://www.wikidata.org/wiki/Q39061","display_name":"Northern Hemisphere","level":2,"score":0.5989812612533569},{"id":"https://openalex.org/C2777252438","wikidata":"https://www.wikidata.org/wiki/Q41228","display_name":"Southern Hemisphere","level":2,"score":0.5919057130813599},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5905691385269165},{"id":"https://openalex.org/C122523270","wikidata":"https://www.wikidata.org/wiki/Q34027","display_name":"Latitude","level":2,"score":0.5523058176040649},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.49625664949417114},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.47484734654426575},{"id":"https://openalex.org/C132651083","wikidata":"https://www.wikidata.org/wiki/Q7942","display_name":"Climate change","level":2,"score":0.4495859146118164},{"id":"https://openalex.org/C100970517","wikidata":"https://www.wikidata.org/wiki/Q52107","display_name":"Physical geography","level":1,"score":0.4401562213897705},{"id":"https://openalex.org/C115343472","wikidata":"https://www.wikidata.org/wiki/Q7942","display_name":"Global warming","level":3,"score":0.41841447353363037},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.3459586501121521},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.17006924748420715},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.09719833731651306},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0884459912776947},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.06280794739723206},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/agro-geoinformatics.2019.8820219","is_oa":false,"landing_page_url":"https://doi.org/10.1109/agro-geoinformatics.2019.8820219","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 8th International Conference on Agro-Geoinformatics (Agro-Geoinformatics)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/13","score":0.7900000214576721,"display_name":"Climate action"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W1979235721","https://openalex.org/W1989279348","https://openalex.org/W2013236634","https://openalex.org/W2018764772","https://openalex.org/W2022732179","https://openalex.org/W2028334803","https://openalex.org/W2036636516","https://openalex.org/W2040228818","https://openalex.org/W2053017257","https://openalex.org/W2069267948","https://openalex.org/W2082819436","https://openalex.org/W2117996123","https://openalex.org/W2127170577","https://openalex.org/W2136479822","https://openalex.org/W2150429219","https://openalex.org/W2165772416","https://openalex.org/W2171932819","https://openalex.org/W2297681400","https://openalex.org/W2315125520","https://openalex.org/W2336426693","https://openalex.org/W2474983499","https://openalex.org/W2549017943","https://openalex.org/W2742963871","https://openalex.org/W2793104566","https://openalex.org/W2803582071","https://openalex.org/W2919244278","https://openalex.org/W3036211084","https://openalex.org/W4252159371","https://openalex.org/W6749237717"],"related_works":["https://openalex.org/W2000615155","https://openalex.org/W1982364394","https://openalex.org/W2068421149","https://openalex.org/W2028125629","https://openalex.org/W2124221389","https://openalex.org/W1949157007","https://openalex.org/W1506568487","https://openalex.org/W1982502743","https://openalex.org/W836421467","https://openalex.org/W1973994513"],"abstract_inverted_index":{"With":[0],"several":[1],"decadal":[2],"accumulations":[3],"of":[4,24,45,83,101,134],"remotely":[5],"sensed":[6],"data":[7],"and":[8,10,21,43,64,104,130],"products":[9],"advances":[11],"in":[12,99,126,137,145],"satellite":[13],"based":[14],"vegetative":[15,47,135],"drought":[16,25,48,136],"detection":[17,74],"methods,":[18],"the":[19,41,81,84,93,112,121,132,138,146],"global":[20,46,85],"regional":[22],"characteristics":[23],"are":[26,115,124],"expected":[27],"be":[28],"discovered":[29],"from":[30,67],"those":[31],"long-term":[32],"historical":[33],"inventory":[34],"data.":[35],"In":[36],"this":[37],"study,":[38],"we":[39,91],"investigate":[40],"trend":[42,63,69,72,76,89],"variability":[44,65],"using":[49],"bf":[50],"1981-2017":[51],"NOVAA/AVHRR":[52],"weekly":[53],"VHI":[54,94],"products.":[55],"We":[56,107],"proposed":[57],"a":[58],"methodological":[59],"framework":[60],"to":[61,71,75],"perform":[62],"analysis":[66],"overall":[68,113],"test":[70],"location":[73],"magnitude":[77],"estimate.":[78],"Accounting":[79],"for":[80,118],"effect":[82],"geographical":[86],"heterogeneity":[87],"on":[88,96],"analysis,":[90],"aggregated":[92],"dataset":[95],"designated":[97],"zones":[98],"view":[100],"latitude":[102],"ranges":[103],"climate":[105],"zones.":[106],"found":[108],"that:":[109],"(1)":[110],"although":[111],"trends":[114,123,133],"not":[116],"obvious":[117],"some":[119,127],"cases,":[120],"local":[122],"significant":[125],"specific":[128],"periods,":[129],"(2)":[131],"north":[139],"hemisphere":[140],"is":[141],"better":[142],"than":[143],"that":[144],"south":[147],"hemisphere.":[148]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":2}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
