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Atmospheric trends of CO and CH4 from extreme wildfires in Portugal using sentinel-5P TROPOMI level-2 data

2021-06Artigo científico Acesso aberto
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dc.contributor.authorMagro, Cátia
dc.contributor.authorNunes, Leónia
dc.contributor.authorGonçalves, Oriana C.
dc.contributor.authorNeng, Nuno R.
dc.contributor.authorNogueira, José M. F.
dc.contributor.authorRego, Francisco Castro
dc.contributor.authorVieira, Pedro
dc.contributor.institutionCENSE - Centro de Investigação em Ambiente e Sustentabilidade
dc.contributor.institutionDCEA - Departamento de Ciências e Engenharia do Ambiente
dc.contributor.institutionDF – Departamento de Física
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2022-02-12T23:26:59Z
dc.date.available2022-02-12T23:26:59Z
dc.date.issued2021-06
dc.descriptionPCIF/GFC/0078/2018 UIDB/00100/2020 UIDB/04085/2020 DL 57/2016
dc.description.abstractLarge forest fires have repeatedly affected Europe, in particular the Mediterranean countries. It is now crucial to continue the effort to feed the several layers of prediction models and understand how wildfire spreads in order to develop modern preventative and mitigation methods. The present study evaluates the performance of Sentinel 5-P TROPOMI for the monitoring of carbon monoxide (CO) and methane (CH4) during extreme fire events in Portugal, focusing on the Monchique (2018) and Vila de Rei/Mação (2019) wildfires, which devastated 27,154 ha and 9249 ha, respectively. The spatial distribution and trend of CO and CH4 prior to, during, and following the fire event were accessed and linked with in situ data in a qualitative and quantitative exploration. Large CO plumes were observed with CO columns exceeding 4.5 × 1018 and 6 × 1018 molecules/cm2 on 21 July 2019, and 7 August 2018, respectively. CO distribution profiles after consecutive digital processing steps showed the ability to follow CO fluctuations according to the fire spread. Furthermore, statistically significant differences were found between CO emissions inside and outside the burning area in both fire events. Finally, the CO2 estimated through CO column data presented an emission of 7.6 × 1019 molecules/cm2 for the uppermost emission day on 7 August 2018. Although CH4 monitoring is still unwavering to draw exact conclusions, the CO patterns during extreme fire events show promising and consistent data when compared with in situ data.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent7096526
dc.identifier.doi10.3390/fire4020025
dc.identifier.otherPURE: 36699731
dc.identifier.otherPURE UUID: 0ca4369e-f3af-4434-b318-172492050726
dc.identifier.otherScopus: 85116630112
dc.identifier.otherWOS: 000667178000001
dc.identifier.urihttp://hdl.handle.net/10362/132792
dc.identifier.urlhttps://www.scopus.com/pages/publications/85116630112
dc.language.isoeng
dc.peerreviewedyes
dc.subjectCarbon monoxide
dc.subjectExtreme wildfires
dc.subjectMethane
dc.subjectRemote sensing
dc.subjectSentinel 5-P
dc.subjectTROPOMI
dc.subjectForestry
dc.subjectBuilding and Construction
dc.subjectSafety, Risk, Reliability and Quality
dc.subjectEnvironmental Science (miscellaneous)
dc.subjectSafety Research
dc.subjectEarth and Planetary Sciences (miscellaneous)
dc.titleAtmospheric trends of CO and CH4 from extreme wildfires in Portugal using sentinel-5P TROPOMI level-2 dataen
dc.typejournal article
degois.publication.issue2
degois.publication.titleFire
degois.publication.volume4
dspace.entity.typePublication
rcaap.rightsopenAccess

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