Using hydrological modelling to improve the Fire Weather Index system over tropical peatlands of peninsular Malaysia, Sumatra and Borneo

被引：0
作者：
Mortelmans, J. [1 ]
Apers, S. [1 ]
De Lannoy, G. J. M. [1 ]
Veraverbeke, S. [2 ,3 ]
Field, R. D. [4 ,5 ]
Andela, N. [6 ]
Page, S. E. [7 ]
Bechtold, M. [1 ]
机构：
[1] Katholieke Univ Leuven, Dept Earth & Environm Sci, Kasteelpk Arenberg 20, B-3001 Heverlee, Belgium
[2] Vrije Univ Amsterdam, Dept Earth Sci, Boelelaan 1100, NL-1081 HV Amsterdam, Netherlands
[3] Univ East Anglia, Sch Environm Sci, Norwich, England
[4] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA
[5] NASA, Goddard Inst Space Studies, New York, NY USA
[6] BeZero Carbon, London, England
[7] Univ Leicester, Sch Geog Geol & Environm, Univ Rd, Leicester LE1 7RH, England
来源：
INTERNATIONAL JOURNAL OF WILDLAND FIRE | 2025年 / 34卷 / 02期
基金：
比利时弗兰德研究基金会;
关键词：
Fire Weather Index; FWI; Groundwater table; hydrological data; PEATCLSM; peatland fires; southeast Asia; SMOLDERING PEAT FIRES; ACACIA PLANTATION; BURNED AREA; CARBON LOSS; EMISSIONS; VARIABILITY; SUBSIDENCE; ALGORITHM; MOISTURE; WILDFIRE;
D O I：
10.1071/WF24057
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
Background Tropical peatland fires contribute to global carbon emissions and air pollution.Aims Enhance the globally used Canadian Fire Weather Index (FWI) system specifically over drained and undrained tropical peatlands in southeast Asia.Methodology We included simulated tropical peatland hydrology in the FWI, creating a new peatland-specific version of the FWI (FWIpeat). FWIpeat, the original FWI (FWIref) and the drought code (DC) were evaluated against satellite-based active fire occurrence from 2002 to 2018.Key results The DC shows superior performance in explaining fire occurrence over undrained tropical peatlands. Over drained peatlands, DC and FWIpeat show similar results, both outperforming FWIref. A comparison with an earlier study over boreal peatlands indicates much smaller improvements from FWIpeat for tropical peatlands, possibly due to a lower accuracy of the hydrological input data.Conclusions Our results highlight the importance of including information on deeper soil layers, i.e. the DC or groundwater table, when assessing fire danger.Implications Although this study offers a promising approach for operational fire management over tropical peatlands, we emphasise the need for further research to refine the hydrological input data and explore additional constraints from Earth observation data.
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页数：16
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