alexandre c. coutinho embrapa monitoramento por satélite procam - usp burnings occurency dynamcs in...
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Alexandre C. Coutinho
Embrapa Monitoramento por SatélitePROCAM - USP
BURNINGS OCCURENCY DYNAMCS IN THE STATE OF
MATO GROSSO
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• ACCURACY ESTIMATION OF BURNING DATA
• MUNICIPALITY BASED ANALYSIS
• MULTIVARIATED ANALYSIS - PRINCIPAL COMPONENTS
• FIRST COMPONENT CLASSIFICATION
• DYNAMICS CHARACTERIZATION
PROCEDURES
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ACCURACY ESTIMATION OF BURNING DATA
1999
• 21 of 47 images
• spatial resolution - 60m
• geometrical resolution - 90m (1,5 pixel)
2000 / 2001
• 21 images
• spatial resolution - 30m
• geometrical resolution - 50m
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1999
• 2899 burnings
• confidence level of 95%
• confifdence interval of 5%
2000 / 2001
• 716 burnings
• confidence level of 95%
• confifdence interval of 5%
SAMPLE
315 246
de de
339 250
NOAA - 12
ACCURACY ESTIMATION OF BURNING DATA
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Stratified analysis based on distance
Identify geometric correction and commission errors
radius 1,5km; 3,0km and 6,0km around the coordinate
ACCURACY ESTIMATION OF BURNING DATA
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1,5km
6,0km
3,0km
6,0km
ACCURACY ESTIMATION OF BURNING DATA
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COMMISION ERROR ?
ACCURACY ESTIMATION OF BURNING DATA
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ACCURACY ESTIMATION OF BURNING DATA
COMMISION ERROR ?
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Samples:315 (1999)
Samples: 246 (2000/2001)
radius Km confirmed % %error confirmed % %error 1,5 202 64,1 35,9 150 61 39 3 263 83,5 16,5 194 78,9 21,1 6 301 95,6 4,4 226 91,9 8,1
commission 14 4,4 20 8,1
ACCURACY ESTIMATION OF BURNING DATA
COMMISSION ERROR ?
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MUNICIPALITY BASED ANALYSIS
-1995-
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MUNICIPALITY BASED ANALYSIS
-1996-
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MUNICIPALITY BASED ANALYSIS
-1997-
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MUNICIPALITY BASED ANALYSIS
-1998-
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MUNICIPALITY BASED ANALYSIS
-1999-
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MUNICIPALITY BASED ANALYSIS
-2000-
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MUNICIPALITY BASED ANALYSIS
-2001-
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MUNICIPALITY BASED ANALYSIS
-2002-
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MUNICIPALITY BASED ANALYSIS
-2003-
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MULTIVARIATED ANALYSIS - PRINCIPAL COMPONENTS
• data normalization
• Factor 1 explains 77,59%
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Din. progressiva aceleradaInc. de qmd. extremamente alta
Din. progressiva moderadaInc. de qmd. alta
Din. estávelInc. de qmd. moderada
Din. estávelInc. de qmd. baixa
Din. Regressiva fracaInc. de qmd.muito baixa
LEGENDA
DYNAMICS CHARACTERIZATION