Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/3F7DACF7-4CE6-4A1A-9FB7-1907D2B23B44 | - |
| Identifier | https://doi.org/10.1088/1748-9326/ac5fa1 | - |
| Identifier | https://iopscience.iop.org/article/10.1088/1748-9326/ac5fa1 | - |
| Language | en | - |
| Extent | 10 pages | en |
| Title | Climate drivers of global wildfire burned area | en |
| Creator | Grillakis Emmanouil | en |
| Creator | Γρυλλακης Εμμανουηλ | el |
| Creator | Voulgarakis Apostolos | en |
| Creator | Βουλγαρακης Αποστολος | el |
| Creator | Rovithakis Anastasios | en |
| Creator | Ροβιθακης Αναστασιος | el |
| Creator | Seiradakis Konstantinos | en |
| Creator | Σειραδακης Κωνσταντινος | el |
| Creator | Koutroulis Aristeidis | en |
| Creator | Κουτρουλης Αριστειδης | el |
| Creator | Field Robert D | en |
| Creator | Kasoar Matthew | en |
| Creator | Papadopoulos Athanasios | en |
| Creator | Παπαδοπουλος Αθανασιος | el |
| Creator | Lazaridis Michail | en |
| Creator | Λαζαριδης Μιχαηλ | el |
| Publisher | IOP Publishing | en |
| Description | This 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 |
| Content Summary | Wildfire 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 |
| Type of Item | Επιστολή | el |
| Type of Item | Letter | en |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2024-02-27 | - |
| Date of Publication | 2022 | - |
| Subject | Wildfire | en |
| Subject | Canadian Fire Weather Index (FWI) | en |
| Subject | Observation-based burned area (BA) | en |
| Subject | Global Fire Emissions Database (GFED) | en |
| Subject | Build-Up Index (BUI) | en |
| Subject | Initial Spread Index (ISI) | en |
| Bibliographic Citation | M. 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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