{"id":"https://openalex.org/W3024481720","doi":"https://doi.org/10.1109/jstars.2020.2989422","title":"Estimation of Daily Actual Evapotranspiration Using Vegetation Coefficient Method for Clear and Cloudy Sky Conditions","display_name":"Estimation of Daily Actual Evapotranspiration Using Vegetation Coefficient Method for Clear and Cloudy Sky Conditions","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3024481720","doi":"https://doi.org/10.1109/jstars.2020.2989422","mag":"3024481720"},"language":"en","primary_location":{"id":"doi:10.1109/jstars.2020.2989422","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jstars.2020.2989422","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/jstars.2020.2989422","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5075413356","display_name":"S. Rangaswamy","orcid":null},"institutions":[{"id":"https://openalex.org/I11880225","display_name":"National Institute of Technology Karnataka","ror":"https://ror.org/01hz4v948","country_code":"IN","type":"education","lineage":["https://openalex.org/I11880225"]},{"id":"https://openalex.org/I42014448","display_name":"Sardar Vallabhbhai National Institute of Technology Surat","ror":"https://ror.org/02y394t43","country_code":"IN","type":"education","lineage":["https://openalex.org/I42014448"]},{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Hassan Rangaswamy Shwetha","raw_affiliation_strings":["Department of Applied Mechanics and Hydraulics, National Institute of Technology, Surathkal, Mangalore, India","Interdisciplinary Centre for Water Research, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Department of Applied Mechanics and Hydraulics, National Institute of Technology, Surathkal, Mangalore, India","institution_ids":["https://openalex.org/I11880225","https://openalex.org/I42014448"]},{"raw_affiliation_string":"Interdisciplinary Centre for Water Research, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5083573588","display_name":"D. Nagesh Kumar","orcid":"https://orcid.org/0000-0002-5294-8501"},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Dasika Nagesh Kumar","raw_affiliation_strings":["Department of Civil Engineering, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Department of Civil Engineering, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5075413356"],"corresponding_institution_ids":["https://openalex.org/I11880225","https://openalex.org/I42014448","https://openalex.org/I59270414"],"apc_list":{"value":1250,"currency":"USD","value_usd":1250},"apc_paid":{"value":1250,"currency":"USD","value_usd":1250},"fwci":0.513,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.67239312,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"13","issue":null,"first_page":"2385","last_page":"2395"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10266","display_name":"Plant Water Relations and Carbon Dynamics","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/T10266","display_name":"Plant Water Relations and Carbon Dynamics","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/T10766","display_name":"Urban Heat Island Mitigation","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"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":0.9926000237464905,"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/environmental-science","display_name":"Environmental science","score":0.7339268326759338},{"id":"https://openalex.org/keywords/evapotranspiration","display_name":"Evapotranspiration","score":0.6891766786575317},{"id":"https://openalex.org/keywords/overcast","display_name":"Overcast","score":0.6711263060569763},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5946179032325745},{"id":"https://openalex.org/keywords/sky","display_name":"Sky","score":0.5909993648529053},{"id":"https://openalex.org/keywords/correlation-coefficient","display_name":"Correlation coefficient","score":0.5272756218910217},{"id":"https://openalex.org/keywords/cloud-cover","display_name":"Cloud cover","score":0.478893905878067},{"id":"https://openalex.org/keywords/moderate-resolution-imaging-spectroradiometer","display_name":"Moderate-resolution imaging spectroradiometer","score":0.467695951461792},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.44246265292167664},{"id":"https://openalex.org/keywords/atmospheric-sciences","display_name":"Atmospheric sciences","score":0.3927600383758545},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.33857905864715576},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14825007319450378},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.13773009181022644},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.11880165338516235},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09408479928970337},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.08178907632827759}],"concepts":[{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.7339268326759338},{"id":"https://openalex.org/C176783924","wikidata":"https://www.wikidata.org/wiki/Q828158","display_name":"Evapotranspiration","level":2,"score":0.6891766786575317},{"id":"https://openalex.org/C195452092","wikidata":"https://www.wikidata.org/wiki/Q1055865","display_name":"Overcast","level":3,"score":0.6711263060569763},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5946179032325745},{"id":"https://openalex.org/C73329638","wikidata":"https://www.wikidata.org/wiki/Q527","display_name":"Sky","level":2,"score":0.5909993648529053},{"id":"https://openalex.org/C2780092901","wikidata":"https://www.wikidata.org/wiki/Q3433612","display_name":"Correlation coefficient","level":2,"score":0.5272756218910217},{"id":"https://openalex.org/C206887242","wikidata":"https://www.wikidata.org/wiki/Q830457","display_name":"Cloud cover","level":3,"score":0.478893905878067},{"id":"https://openalex.org/C2777007095","wikidata":"https://www.wikidata.org/wiki/Q676840","display_name":"Moderate-resolution imaging spectroradiometer","level":3,"score":0.467695951461792},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.44246265292167664},{"id":"https://openalex.org/C91586092","wikidata":"https://www.wikidata.org/wiki/Q757520","display_name":"Atmospheric sciences","level":1,"score":0.3927600383758545},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.33857905864715576},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14825007319450378},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.13773009181022644},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.11880165338516235},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09408479928970337},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.08178907632827759},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","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},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/jstars.2020.2989422","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jstars.2020.2989422","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:eprints.iisc.ac.in:65755","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306401429","display_name":"ePrints@IISc (Indian Institute of Science)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I59270414","host_organization_name":"Indian Institute of Science Bangalore","host_organization_lineage":["https://openalex.org/I59270414"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"},{"id":"pmh:oai:doaj.org/article:a48f7f5f26ca4fceaee1fed99fc943ad","is_oa":true,"landing_page_url":"https://doaj.org/article/a48f7f5f26ca4fceaee1fed99fc943ad","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 2385-2395 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/jstars.2020.2989422","is_oa":true,"landing_page_url":"https://doi.org/10.1109/jstars.2020.2989422","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","display_name":"Life in Land","score":0.47999998927116394}],"awards":[{"id":"https://openalex.org/G1015947930","display_name":null,"funder_award_id":"MoES/PAMC/ H&C/41/2013-PC-II","funder_id":"https://openalex.org/F4320321026","funder_display_name":"Ministry of Earth Sciences"}],"funders":[{"id":"https://openalex.org/F4320321026","display_name":"Ministry of Earth Sciences","ror":"https://ror.org/013cf5k59"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":48,"referenced_works":["https://openalex.org/W1480975298","https://openalex.org/W1492858809","https://openalex.org/W1643822967","https://openalex.org/W1894250892","https://openalex.org/W1962937920","https://openalex.org/W1972206813","https://openalex.org/W1980975307","https://openalex.org/W1981448549","https://openalex.org/W1981663377","https://openalex.org/W1995706865","https://openalex.org/W2009430603","https://openalex.org/W2011010141","https://openalex.org/W2014767505","https://openalex.org/W2015702592","https://openalex.org/W2016044589","https://openalex.org/W2018318189","https://openalex.org/W2027939224","https://openalex.org/W2028455817","https://openalex.org/W2033146388","https://openalex.org/W2043809497","https://openalex.org/W2044090917","https://openalex.org/W2044393873","https://openalex.org/W2044562303","https://openalex.org/W2045870298","https://openalex.org/W2046970602","https://openalex.org/W2060304003","https://openalex.org/W2061003790","https://openalex.org/W2064175001","https://openalex.org/W2068173475","https://openalex.org/W2073898620","https://openalex.org/W2077463431","https://openalex.org/W2079285700","https://openalex.org/W2087478452","https://openalex.org/W2093589181","https://openalex.org/W2096206362","https://openalex.org/W2109638581","https://openalex.org/W2110845818","https://openalex.org/W2116594166","https://openalex.org/W2118874296","https://openalex.org/W2126273372","https://openalex.org/W2144752086","https://openalex.org/W2147611675","https://openalex.org/W2152516985","https://openalex.org/W2153102877","https://openalex.org/W2315350461","https://openalex.org/W2776608098","https://openalex.org/W2789798368","https://openalex.org/W2883330924"],"related_works":["https://openalex.org/W3083766366","https://openalex.org/W1604437852","https://openalex.org/W2157093188","https://openalex.org/W2369031331","https://openalex.org/W2149569740","https://openalex.org/W2007312163","https://openalex.org/W2504838903","https://openalex.org/W2616243452","https://openalex.org/W1913788863","https://openalex.org/W2001883168"],"abstract_inverted_index":{"Actual":[0],"evapotranspiration":[1,90],"(AET)":[2],"can":[3],"be":[4],"studied":[5],"and":[6,14,18,29,40,61,85,102,115,155,159,177,185,246],"estimated":[7,72,96,213],"using":[8,76,97,108,214],"remote-sensing-based":[9],"methods":[10],"at":[11],"multiple":[12],"spatial":[13],"temporal":[15],"scales.":[16],"Reflectance":[17],"Land":[19],"surface":[20],"temperature":[21,100,131],"are":[22],"essential":[23],"in":[24,44],"these":[25,35],"methods.":[26],"However":[27],"optical":[28,86],"thermal":[30],"sensors":[31],"fail":[32],"to":[33],"provide":[34],"data":[36,60],"under":[37,92,133,190,203,228,253],"overcast":[38],"conditions":[39,75,94],"this":[41,68,208],"creates":[42],"gap":[43],"the":[45,54,77,109,140,200,215,221,236,243],"AET":[46,55,63,70,212,251],"product.":[47],"Besides,":[48],"there":[49],"is":[50],"a":[51],"necessity":[52],"of":[53,117,153,183],"method":[56,81,217,227,239,245],"that":[57,139,235],"requires":[58],"less":[59],"estimates":[62],"with":[64,128,144,148,172,175,199,220],"better":[65,143,170,241],"accuracy.":[66],"In":[67,210],"regard,":[69],"was":[71,95,218,233],"for":[73,157,187],"all-sky":[74],"vegetation":[78],"coefficient":[79,150],"(VI-Kv)":[80],"utilizing":[82],"microwave,":[83],"thermal,":[84],"data.":[87],"Essential":[88],"reference":[89],"(ET0)":[91],"cloudy":[93,134,191,204,254],"LST-based":[98],"Penman-Monteith":[99],"(PMT)":[101],"Hargreaves-Samani":[103],"equations.":[104],"Furthermore,":[105],"LST":[106,116],"predicted":[107],"microwave":[110],"polarization":[111],"difference":[112],"index":[113],"(PLST)":[114],"moderate":[118],"resolution":[119],"imaging":[120],"spectroradiometer":[121],"(MODIS)":[122],"cloud":[123],"product":[124],"(MLST)":[125],"were":[126],"evaluated":[127],"in-situ":[129],"air":[130],"(Ta)":[132],"sky":[135,205,230,255],"conditions.":[136,231,256],"Results":[137],"revealed":[138],"PLST":[141],"correlated":[142],"Ta":[145],"than":[146,242],"MLST":[147],"correlation":[149],"(r)":[151],"values":[152,182,196],"0.71":[154],"0.81":[156],"day":[158],"night":[160],"times,":[161],"respectively.":[162,193],"Hence,":[163],"PLST-based":[164],"solar":[165],"radiation":[166],"(Rs)":[167],"estimation":[168],"yielded":[169],"accuracy":[171],"observed":[173,201],"Rs":[174],"r":[176],"root":[178],"mean":[179],"square":[180],"error":[181],"0.864":[184],"0.07":[186],"Berambadi":[188],"station":[189],"conditions,":[192],"PMT-based":[194],"ET0":[195,202],"corresponded":[197],"well":[198],"condition":[206],"during":[207],"study.":[209],"addition,":[211],"VI-Kv":[216,238],"compared":[219],"simple":[222],"two-source":[223],"energy":[224],"balance":[225],"(TSEB)":[226],"clear":[229],"It":[232],"found":[234],"improved":[237],"performed":[240],"TSEB":[244],"could":[247],"also":[248],"fairly":[249],"estimate":[250],"even":[252]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3}],"updated_date":"2026-03-29T08:15:47.926485","created_date":"2025-10-10T00:00:00"}
