{"id":"https://openalex.org/W3129763631","doi":"https://doi.org/10.1109/igarss39084.2020.9324671","title":"Producing a Gap-free Landsat Time Series for the Taita Hills, Southeastern Kenya","display_name":"Producing a Gap-free Landsat Time Series for the Taita Hills, Southeastern Kenya","publication_year":2020,"publication_date":"2020-09-26","ids":{"openalex":"https://openalex.org/W3129763631","doi":"https://doi.org/10.1109/igarss39084.2020.9324671","mag":"3129763631"},"language":"en","primary_location":{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss39084.2020.9324671","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false},"type":"article","type_crossref":"proceedings-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/A5072604677","display_name":"Zhipeng Tang","orcid":"https://orcid.org/0000-0003-1885-340X"},"institutions":[{"id":"https://openalex.org/I32971472","display_name":"Yale University","ror":"https://ror.org/03v76x132","country_code":"US","type":"education","lineage":["https://openalex.org/I32971472"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zhipeng Tang","raw_affiliation_strings":["School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA"],"affiliations":[{"raw_affiliation_string":"School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA","institution_ids":["https://openalex.org/I32971472"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016396325","display_name":"Hari Adhikari","orcid":"https://orcid.org/0000-0002-9089-3249"},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Hari Adhikari","raw_affiliation_strings":["Institute for Atmospheric and Earth System Research, University of Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Institute for Atmospheric and Earth System Research, University of Helsinki, Finland","institution_ids":["https://openalex.org/I133731052"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036822460","display_name":"Petri Pellikka","orcid":"https://orcid.org/0000-0002-5996-9268"},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Petri K. E. Pellikka","raw_affiliation_strings":["Institute for Atmospheric and Earth System Research, University of Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Institute for Atmospheric and Earth System Research, University of Helsinki, Finland","institution_ids":["https://openalex.org/I133731052"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002576056","display_name":"Janne Heiskanen","orcid":"https://orcid.org/0000-0002-3899-8860"},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Janne Heiskanen","raw_affiliation_strings":["Institute for Atmospheric and Earth System Research, University of Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Institute for Atmospheric and Earth System Research, University of Helsinki, Finland","institution_ids":["https://openalex.org/I133731052"]}]}],"institution_assertions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.705,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.769441,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":69,"max":74},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Vegetation Monitoring and Phenology","score":0.9994,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"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/T10111","display_name":"Remote Sensing in Vegetation Monitoring and Phenology","score":0.9994,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"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/T10895","display_name":"Species Distribution Modeling and Climate Change Impacts","score":0.9947,"subfield":{"id":"https://openalex.org/subfields/2302","display_name":"Ecological Modeling"},"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/T11659","display_name":"Multispectral and Hyperspectral Image Fusion","score":0.9872,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/land-cover","display_name":"Land cover","score":0.58632416},{"id":"https://openalex.org/keywords/landsat","display_name":"Landsat","score":0.503843},{"id":"https://openalex.org/keywords/dry-season","display_name":"Dry season","score":0.47423145},{"id":"https://openalex.org/keywords/line","display_name":"Line (geometry)","score":0.4376585}],"concepts":[{"id":"https://openalex.org/C143724316","wikidata":"https://www.wikidata.org/wiki/Q312468","display_name":"Series (stratigraphy)","level":2,"score":0.6523219},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.63150996},{"id":"https://openalex.org/C2780648208","wikidata":"https://www.wikidata.org/wiki/Q3001793","display_name":"Land cover","level":3,"score":0.58632416},{"id":"https://openalex.org/C206887242","wikidata":"https://www.wikidata.org/wiki/Q830457","display_name":"Cloud cover","level":3,"score":0.57302684},{"id":"https://openalex.org/C151406439","wikidata":"https://www.wikidata.org/wiki/Q186588","display_name":"Time series","level":2,"score":0.5349072},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.53334594},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.48220098},{"id":"https://openalex.org/C9777977","wikidata":"https://www.wikidata.org/wiki/Q146575","display_name":"Dry season","level":2,"score":0.47423145},{"id":"https://openalex.org/C198352243","wikidata":"https://www.wikidata.org/wiki/Q37105","display_name":"Line (geometry)","level":2,"score":0.4376585},{"id":"https://openalex.org/C100970517","wikidata":"https://www.wikidata.org/wiki/Q52107","display_name":"Physical geography","level":1,"score":0.37336966},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.37154585},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3213978},{"id":"https://openalex.org/C4792198","wikidata":"https://www.wikidata.org/wiki/Q1165944","display_name":"Land use","level":2,"score":0.3092655},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.29645115},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.28875124},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.22018665},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.20880842},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.19166666},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.17568567},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.08904505},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","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/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss39084.2020.9324671","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","score":0.63,"display_name":"Life on land"}],"grants":[],"datasets":[],"versions":[],"referenced_works_count":9,"referenced_works":["https://openalex.org/W1963768209","https://openalex.org/W1969834758","https://openalex.org/W2014894537","https://openalex.org/W2224718689","https://openalex.org/W2920930972","https://openalex.org/W2947830067","https://openalex.org/W3007407753","https://openalex.org/W3099527008","https://openalex.org/W4255029902"],"related_works":["https://openalex.org/W8591611","https://openalex.org/W8352702","https://openalex.org/W44641121","https://openalex.org/W44349824","https://openalex.org/W28821318","https://openalex.org/W1918575","https://openalex.org/W17611253","https://openalex.org/W1571207","https://openalex.org/W13552438","https://openalex.org/W10529164"],"abstract_inverted_index":{"Long-term":[0],"Landsat":[1,28,50],"time":[2,37,51,161],"series":[3,52,162],"imagery":[4],"provides":[5],"valuable":[6],"opportunities":[7],"for":[8,53,165],"monitoring":[9],"land":[10,174],"surface":[11],"changes.":[12],"However,":[13],"missing":[14],"observations":[15],"that":[16,95],"result":[17],"from":[18],"clouds,":[19],"cloud":[20],"shadows,":[21],"and":[22,84,125,143,152],"scan":[23],"line":[24],"corrector":[25],"failure":[26],"makes":[27],"data":[29],"record":[30],"neither":[31],"a":[32,35,48],"continuous":[33],"nor":[34],"consistent":[36,170],"series.":[38],"In":[39],"this":[40],"study,":[41],"we":[42],"present":[43],"an":[44],"approach":[45,74],"to":[46,68,108,135],"produce":[47],"gap-free":[49,138],"the":[54,70,73,79,82,87,99,111,117,126,131,160,166],"Taita":[55],"Hills":[56],"in":[57,64,140],"southeastern":[58],"Kenya.":[59],"We":[60],"used":[61],"simulated":[62,103],"gaps":[63,83,133],"nearly":[65],"cloud-free":[66],"images":[67,139,155,163],"assess":[69],"performance":[71],"of":[72,81,86,102,110,128],"while":[75],"considering":[76],"two":[77],"factors:":[78],"size":[80],"effect":[85],"wet":[88,144],"or":[89],"dry":[90,142,153],"seasons.":[91],"It":[92],"turned":[93],"out":[94],"filling":[96],"image":[97,113],"with":[98],"largest":[100],"area":[101,168],"gaps,":[104],"which":[105],"were":[106,156],"equivalent":[107,134],"52%":[109],"test":[112],"area,":[114],"yielded":[115],"almost":[116],"same":[118],"root":[119],"mean":[120],"square":[121],"error,":[122],"relative":[123],"RMSE":[124],"coefficient":[127],"determination":[129],"as":[130],"smallest":[132],"25%.":[136],"Furthermore,":[137],"both":[141],"seasons":[145],"could":[146],"be":[147],"filled":[148],"without":[149],"visual":[150],"artifacts,":[151],"season":[154],"better":[157],"predicted.":[158],"Finally,":[159],"produced":[164],"study":[167],"showed":[169],"temporal":[171],"variation":[172],"across":[173],"use/land":[175],"cover":[176],"types.":[177]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W3129763631","counts_by_year":[{"year":2022,"cited_by_count":1}],"updated_date":"2024-11-26T03:02:14.810319","created_date":"2021-03-01"}