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Table 1 Error matrix for the classified Landsat scenes*.

From: Implications of land use change on the national terrestrial carbon budget of Georgia

h

1

2

3

n h

A h

W h

Ï•

1

51

23

13

87

22,044

0.0032

0.0033

2

0

416

15

431

2,694,787

0.397

0.41

3

1

20

410

431

4,071,576

0.600

0.58

Total

52

459

438

949

6,788,387

1

1

h

A h, a

S(A h, a )

Lower CI

Upper CI

User's

Prod's

Prop.

1

22,370

9,519

3,331

41,408

59

98

0.19

2

2,795,765

47,690

2,700,384

2,891,146

97

91

38

3

3,970,273

48,528

3,873,217

4,067,328

95

94

57

 

Overall accuracy

Area-weighted accuracy

     
 

92

96

     
  1. *Map categories are rows (1 = forest-to-non-forest; 2 = stable forest; 3 = stable non-forest) while the true categories are in columns. h is the map category; n h is the number of samples in h; A h is the area of map category h, with A h, a being the adjusted value of A h ; W h is the proportional area of h; Ï• is proportion of samples in map category h; S(A h, a ) is the standard error of the adjusted area; Lower/Upper CI are the upper and lower confidence intervals; User's and Prod's are user's and producer's accuracy in percent; Prop. is the user's accuracy weighted by map category area proportion. Overall accuracy and Area-weighted accuracy are expressed in percent. Area and confidence intervals are expressed in hectares.
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Carbon Balance and Management

ISSN: 1750-0680

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