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7th Workshop on Forest Fire Management - EARSeL, European ...

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268<br />

IV - BURNED LAND MAPPING, FIRE SEVERITY DETERMINATION, AND VEGETATION RECOVERY ASSESSMENT<br />

The algorithm was trained using the boreal forest sites, so it could be tuned<br />

to other vegetati<strong>on</strong> types or a general model could be tested for all of them<br />

or even new variables could be added. The total probability thresholds for<br />

burned, potentially burned and unburned pixels could be adjusted to each<br />

year instead of using the value computed for 1989. LTDR 5 km improved the<br />

results over PAL which was proven inaccurate for the boreal regi<strong>on</strong>s<br />

(Carm<strong>on</strong>a-Moreno et al., 2005; Chuvieco et al., 2008).<br />

Acknowledgments<br />

This work was supported in part by the Spanish Commissi<strong>on</strong> for Science and<br />

Technology (CICYT) under Grant CGL2007-66888-C02-02/CLI. Thank you to<br />

Emilio Chuvieco for providing the burned area record generated from LAC<br />

data. Useful comments <strong>on</strong> earlier drafts of the manuscript are acknowledged<br />

from Julia Marcia Medina.<br />

References<br />

Balshi, M.S., McGuire, A.D., Duffy, P., Flannigan, M., Kicklighter, D.W. and<br />

Melillo, J., 2009. Vulnerability of carb<strong>on</strong> storage in North American<br />

boreal forests to wildfires during the 21st century. Global Change<br />

Biology, 15 (6), 1491-1510.<br />

Barbosa, P.M., Grégoire, J.M. and Pereira, J.M.C., 1999. An algorithm for<br />

extracting burned areas from time series of AVHRR GAC data applied at<br />

a c<strong>on</strong>tinental scale. Remote Sensing of Envir<strong>on</strong>ment, 69, 253-263.<br />

Bayes, T., 1763. An essay towards solving a problem in the doctrine of<br />

chances. Philosophical Transacti<strong>on</strong>s of the Royal Society of L<strong>on</strong>d<strong>on</strong>, 53,<br />

370-418.<br />

Carm<strong>on</strong>a-Moreno, C., Belward, A., Malingreau, J.P., Hartley, A., Garcia-<br />

Alegre, M., Ant<strong>on</strong>ovskiy, M., Buchshtaber, V. and Pivovarov, V., 2005.<br />

Characterizing inter-annual variati<strong>on</strong>s in global fire calendar using data<br />

from Earth observing satellites. Global Change Biology, 11 (9), 1537-<br />

1555.<br />

Chuvieco, E., Englefield, P., Trishchenko, A.P. and Luo, Y., 2008. Generati<strong>on</strong><br />

of l<strong>on</strong>g time series of burn area maps of the boreal forest from NOAA-<br />

AVHRR composite data. Remote Sensing of Envir<strong>on</strong>ment, 112 (5), 2381-<br />

2396.<br />

French, N.H.F., Kasischke, E.S., Bourgeauchavez, L.L. and Berry, D., 1995.<br />

Mapping the Locati<strong>on</strong> of Wildfires in Alaskan Boreal <strong>Forest</strong>s Using Avhrr<br />

Imagery. Internati<strong>on</strong>al Journal of Wildland <strong>Fire</strong>, 5 (2), 55-62.<br />

Moreno Ruiz, J.A., Riaño, D., García Lázaro, J.R. and Ustin, S.L., 2009.<br />

Intercomparis<strong>on</strong> of AVHRR PAL and LTDR Versi<strong>on</strong> 2 L<strong>on</strong>g Term Datasets<br />

for Africa from 1982 to 2000 and Its Impact <strong>on</strong> Mapping Burned Area.<br />

IEEE Geoscience and Remote Sensing Letters, in press.

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