Fires detection in South Africa

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Fires detection in South Africa

• Judita Liukaityte
• Eliasz Haas
• Jozef Csaplár
• Jan rámek

IS IT POSSIBLE TO DETECT FIRES IN MODIS DATA ?
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Area of interest
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SCATER PLOT BTDIF4-11 vs. BT4BT4 gt 310K and
BTDIF4-11 gt 10K
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BT4 gt 360K
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POTENTIAL FIRE PIXELS
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TRESHOLD TEST(Av. BT4 3MAD BT4)

• MAD (1/N)(? Ti-Tav)
• Tav (1/N)(? Ti)

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TRESHOLD TEST(Av. BT4 3MAD BT4) and NASA FIRE
MASK
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SCATER PLOT BT21 vs. NDVI
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R3 0.25R7 vs.NDVI
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Conclusion

• It is possible to detect fires, but
• the algorithms will not perform well in some
  cases (solar glint, opaque clouds, shore lines)
• They are based on difference of potential fire
  pixels and the averrage background BT (sometimes
  av.T of backround can be too high due to large
  number of fires)
• large number of fires are located on the edges
• of the forests.