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Climate drivers of global wildfire burned area

Grillakis Emmanouil, Voulgarakis Apostolos, Rovithakis Anastasios, Seiradakis Konstantinos, Koutroulis Aristeidis, Field Robert D, Kasoar Matthew, Papadopoulos Athanasios, Lazaridis Michail

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URIhttp://purl.tuc.gr/dl/dias/3F7DACF7-4CE6-4A1A-9FB7-1907D2B23B44-
Αναγνωριστικόhttps://doi.org/10.1088/1748-9326/ac5fa1-
Αναγνωριστικόhttps://iopscience.iop.org/article/10.1088/1748-9326/ac5fa1-
Γλώσσαen-
Μέγεθος10 pagesen
ΤίτλοςClimate drivers of global wildfire burned areaen
ΔημιουργόςGrillakis Emmanouilen
ΔημιουργόςΓρυλλακης Εμμανουηλel
ΔημιουργόςVoulgarakis Apostolosen
ΔημιουργόςΒουλγαρακης Αποστολοςel
ΔημιουργόςRovithakis Anastasiosen
ΔημιουργόςΡοβιθακης Αναστασιοςel
ΔημιουργόςSeiradakis Konstantinosen
ΔημιουργόςΣειραδακης Κωνσταντινοςel
ΔημιουργόςKoutroulis Aristeidisen
ΔημιουργόςΚουτρουλης Αριστειδηςel
ΔημιουργόςField Robert Den
ΔημιουργόςKasoar Matthewen
ΔημιουργόςPapadopoulos Athanasiosen
ΔημιουργόςΠαπαδοπουλος Αθανασιοςel
ΔημιουργόςLazaridis Michailen
ΔημιουργόςΛαζαριδης Μιχαηλel
ΕκδότηςIOP Publishingen
ΠεριγραφήThis work was funded by the CLIMPACT—National Research Network on Climate Change and its Impacts project, financed by the Public Investment Program of Greece and supervised by General Secretariat for Research and Technology (GSRT).en
ΠερίληψηWildfire is an integral part of the Earth system, but at the same time it can pose serious threats to human society and to certain types of terrestrial ecosystems. Meteorological conditions are a key driver of wildfire activity and extent, which led to the emergence of the use of fire danger indices that depend solely on weather conditions. The Canadian Fire Weather Index (FWI) is a widely used fire danger index of this kind. Here, we evaluate how well the FWI, its components, and the climate variables from which it is derived, correlate with observation-based burned area (BA) for a variety of world regions. We use a novel technique, according to which monthly BA are grouped by size for each Global Fire Emissions Database (GFED) pyrographic region. We find strong correlations of BA anomalies with the FWI anomalies, as well as with the underlying deviations from their climatologies for the four climate variables from which FWI is estimated, namely, temperature, relative humidity, precipitation, and wind. We quantify the relative sensitivity of the observed BA to each of the four climate variables, finding that this relationship strongly depends on the pyrographic region and land type. Our results indicate that the BA anomalies strongly correlate with FWI anomalies at a GFED region scale, compared to the strength of the correlation with individual climate variables. Additionally, among the individual climate variables that comprise the FWI, relative humidity and temperature are the most influential factors that affect the observed BA. Our results support the use of the composite fire danger index FWI, as well as its sub-indices, the Build-Up Index (BUI) and the Initial Spread Index (ISI), comparing to single climate variables, since they are found to correlate better with the observed forest or non-forest BA, for the most regions across the globe.en
ΤύποςΕπιστολήel
ΤύποςLetteren
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2024-02-27-
Ημερομηνία Δημοσίευσης2022-
Θεματική ΚατηγορίαWildfireen
Θεματική ΚατηγορίαCanadian Fire Weather Index (FWI)en
Θεματική ΚατηγορίαObservation-based burned area (BA)en
Θεματική ΚατηγορίαGlobal Fire Emissions Database (GFED)en
Θεματική ΚατηγορίαBuild-Up Index (BUI)en
Θεματική ΚατηγορίαInitial Spread Index (ISI)en
Βιβλιογραφική ΑναφοράM. Grillakis, A. Voulgarakis, A. Rovithakis, K. D Seiradakis, A. Koutroulis, R. D Field, M. Kasoar, A. Papadopoulos and M. Lazaridis, “Climate drivers of global wildfire burned area,” Environ. Res. Lett., vol. 17, no. 4, Apr. 2022, doi: 10.1088/1748-9326/ac5fa1.en

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