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Analysis of the urban heat island in Bragança, Portugal, using MODIS data (2003-2022)

2023Conference paper Restricted access
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dc.contributor.authorAlmeida, Cátia Rodrigues de
dc.contributor.authorAlirio, João
dc.contributor.authorGonçalves, Artur
dc.contributor.authorTeodoro, Ana Cláudia
dc.date.accessioned2024-01-31T16:33:20Z
dc.date.available2024-01-31T16:33:20Z
dc.date.issued2023
dc.description.abstractUrban Heat Island (UHI) is an effect that corroborates to the increase of temperature in urban settlements when compared to the surrounding vegetated areas, especially after sunset. This research aimed to understand the Surface Urban Heat Island (SUHI), a sub-classification correlated to the UHI effect, in the city of Bragança (Portugal), at 23 points classified in different Local Climate Zone (LCZ), between 2003 and 2022, using Remote Sensing (RS) data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. The data were obtained at four passage times: 11am, 1pm, 10pm and 2am and analysed separately for summer and winter. Qualitative and quantitative analyses were applied, using an average of 1,337 Land Surface Temperature (LST) data, processed in the Google Earth Engine (GEE) platform. The computation of the SUHI intensity (SUHIint) for each year was obtained from the differences in LST between each of the LCZ and the average values from Rural Areas (RCD), considering both summer and winter campaigns. The boxplots showed similar medians in all LCZs at 11am and 1pm. At 10pm and 2am, only slight differences were found among the median values. The similarity in results may be associated with the low spatial resolution of the sensor and the difficulty in distinguishing between LCZs. The SUHIint was positive in most of the results (about 71%). Of the 23 points analysed, ten were not located in unique pixels, which compromised the analysis of the results in the different LCZs. This condition reinforces the need for use higher spatial resolution data to allow for a differentiation among LCZs data.pt_PT
dc.description.sponsorshipThe work is co-funded by national funds through FCT – Fundação para a Ciência e Tecnologia, I.P., in the framework of the ICT project with the references UIDB/04683/2020 and UIDP/04683/2020. CIMO is supported through national funds (UIDB/00690/2020 and UIDP/00690/2020) and SusTEC (LA/P/0007/2020). Cátia Rodrigues de Almeida were financially supported by Portuguese national funds through FCT (Grant: PRT/BD/153518/2021).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAlmeida, Cátia Rodrigues de; Alírio, João; Gonçalves, Artur; Teodoro, Ana Cláudia (2023). Analysis of the urban heat island in Bragança, Portugal, using MODIS data (2003-2022). In Earth Resources and Environmental Remote Sensing/GIS Applications XIV. p. 1-14. ISBN 978-1-5106-6697-9pt_PT
dc.identifier.doi10.1117/12.2679713pt_PT
dc.identifier.isbn978-1-5106-6697-9
dc.identifier.urihttp://hdl.handle.net/10198/29412
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherThe Society of Photo-Optical Instrumentation Engineers (SPIE)pt_PT
dc.relationINSTITUTE OF EARTH SCIENCES
dc.relationINSTITUTE OF EARTH SCIENCES
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationCombination of different remote sensing techniques for the analysis of the Urban Heat Island effect in Bragança, Portugal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGoogle Earth enginept_PT
dc.subjectLand surface temperaturept_PT
dc.subjectLocal climate zonept_PT
dc.subjectMODIS sensorpt_PT
dc.subjectRemote sensingpt_PT
dc.titleAnalysis of the urban heat island in Bragança, Portugal, using MODIS data (2003-2022)pt_PT
dc.typeconference paper
dspace.entity.typePublication
oaire.awardTitleINSTITUTE OF EARTH SCIENCES
oaire.awardTitleINSTITUTE OF EARTH SCIENCES
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitleCombination of different remote sensing techniques for the analysis of the Urban Heat Island effect in Bragança, Portugal
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04683%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04683%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/PRT%2FBD%2F153518%2F2021/PT
oaire.citation.endPage14pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleEarth Resources and Environmental Remote Sensing/GIS Applications XIVpt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
person.familyNameGonçalves
person.givenNameArtur
person.identifier.ciencia-idBC10-99F9-B30E
person.identifier.orcid0000-0002-4825-6692
person.identifier.scopus-author-id57195970669
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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