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Table 4 Error statistics for the OMI-TOC NN and its modified version for all the ozonesonde stations considered in this article

From: Tropospheric ozone column retrieval from OMI data by means of neural networks: a validation exercise with ozone soundings over Europe

 

Station statistics

OMI-TOC NN

Modified OMI-TOC NN

Station

N. data

Mean TOC

Std. dev.

RMSE

Mean bias

RMSE

Mean bias

  

[DU]

[DU]

[DU]

[DU]

[DU]

[DU]

Ankara

112

38.04

11.54

8.33

−0. 21

7.68

0.40

Izaña

227

37.38

8.31

8.67

−5. 46

8.71

−5. 97

L’Aquila

76

36.00

11.59

8.68

2.50

7.35

1.42

Lerwick

240

44.80

13.41

12.96

−9. 28

8.60

−3. 46

San Pietro

12

34.82

6.55

5.51

0.35

3.91

1.17

Capofiume

       

Valentia

141

43.31

11.54

9.63

−6. 18

8.88

−5. 54

Observatory

       

Overall

808

40.54

11.83

10.21

−5. 17

8.40

−3. 47