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Evaluation of pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment with landsat thematic mapper

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Abstract
In this study several pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment are evaluated. GeoCBI (Geo Composite Burn Index) field data of burn severity were correlated with remotely sensed measures, based on the NBR (Normalized Burn Ratio), the NDMI (Normalized Difference Moisture Index) and the NDVI (Normalized Difference Vegetation Index). In addition, the strength of the correlation was evaluated for specific fuel types and the influence of the regression model type is pointed out. The NBR was the best remotely sensed index for assessing burn severity, followed by the NDMI and the NDVI. For this case study of the 2007 Peloponnese fires, results show that the GeoCBI-dNBR (differenced NBR) approach yields a moderate-high R(2) = 0.65. Absolute indices outperformed their relative equivalents, which accounted for pre-fire vegetation state. The GeoCBI-dNBR relationship was stronger for forested ecotypes than for shrub lands. The relationship between the field data and the dNBR and dNDMI (differenced NDMI) was nonlinear, while the GeoCBI-dNDVI (differenced NDVI) relationship appeared linear.
Keywords
MODELS, BOREAL FOREST, VERSION, ABILITY, EROSION, MOUNTAINS, INTENSITY, IMAGERY, RATIO DNBR, REMOTELY-SENSED DATA

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Chicago
Veraverbeke, Sander, Stefaan Lhermitte, Willem Verstraeten, and Rudi Goossens. 2011. “Evaluation of Pre/post-fire Differenced Spectral Indices for Assessing Burn Severity in a Mediterranean Environment with Landsat Thematic Mapper.” International Journal of Remote Sensing 32 (12): 3521–3537.
APA
Veraverbeke, S., Lhermitte, S., Verstraeten, W., & Goossens, R. (2011). Evaluation of pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment with landsat thematic mapper. INTERNATIONAL JOURNAL OF REMOTE SENSING, 32(12), 3521–3537.
Vancouver
1.
Veraverbeke S, Lhermitte S, Verstraeten W, Goossens R. Evaluation of pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment with landsat thematic mapper. INTERNATIONAL JOURNAL OF REMOTE SENSING. 2011;32(12):3521–37.
MLA
Veraverbeke, Sander et al. “Evaluation of Pre/post-fire Differenced Spectral Indices for Assessing Burn Severity in a Mediterranean Environment with Landsat Thematic Mapper.” INTERNATIONAL JOURNAL OF REMOTE SENSING 32.12 (2011): 3521–3537. Print.
@article{763219,
  abstract     = {In this study several pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment are evaluated. GeoCBI (Geo Composite Burn Index) field data of burn severity were correlated with remotely sensed measures, based on the NBR (Normalized Burn Ratio), the NDMI (Normalized Difference Moisture Index) and the NDVI (Normalized Difference Vegetation Index). In addition, the strength of the correlation was evaluated for specific fuel types and the influence of the regression model type is pointed out. The NBR was the best remotely sensed index for assessing burn severity, followed by the NDMI and the NDVI. For this case study of the 2007 Peloponnese fires, results show that the GeoCBI-dNBR (differenced NBR) approach yields a moderate-high R(2) = 0.65. Absolute indices outperformed their relative equivalents, which accounted for pre-fire vegetation state. The GeoCBI-dNBR relationship was stronger for forested ecotypes than for shrub lands. The relationship between the field data and the dNBR and dNDMI (differenced NDMI) was nonlinear, while the GeoCBI-dNDVI (differenced NDVI) relationship appeared linear.},
  author       = {Veraverbeke, Sander and Lhermitte, Stefaan and Verstraeten, Willem and Goossens, Rudi},
  issn         = {0143-1161},
  journal      = {INTERNATIONAL JOURNAL OF REMOTE SENSING},
  keywords     = {MODELS,BOREAL FOREST,VERSION,ABILITY,EROSION,MOUNTAINS,INTENSITY,IMAGERY,RATIO DNBR,REMOTELY-SENSED DATA},
  language     = {eng},
  number       = {12},
  pages        = {3521--3537},
  title        = {Evaluation of pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment with landsat thematic mapper},
  url          = {http://dx.doi.org/10.1080/01431161003752430},
  volume       = {32},
  year         = {2011},
}

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