Table 7 Criteria for assess data quality of the GHG estimations of SEEG.

TIER (IPCC definition)

1

Tier 1

2

Tier 2

3

Tier 3

Activity data existence

1

activity data enable to assess level of calculation accuracy Tier 2

2

data incomplete

3

data do not exist

Activity data availability

1

open-source data

2

partial open-source data (some restrictions may apply, i.e. needs to be purchased)

3

data do not exist

Emission factor

1

explicit fator - with references

2

implicit fator - correlation R2 equal or higher than 0,7

3

implicit fator - correlation R2 lower than 0,7

Necessity for improvement

1

no need for improvement

2

improvement is needed in the method OR in the activity data obtention

3

improvement is needed in the method AND in the activity data obtention

General quality of data allocation

1

reliable data - able to reproduce the national inventory

2

reliable data, however, some discrepancies may occur

3

data with low reliability

Aspect

Data Subnational Allocation

Data allocation ocurrence

1

Allocation of all GHG emission results was possible

2

Allocation partially possible. Some of the GHG emission results could not be allocate

3

Allocation of the GHG emission could not be allocated.

Allocation criteria

1

Allocation criteria direct linked to the related emission factor

2

Allocation criteria uses indirect factors strongly linked to direct factors.

3

Allocation criteria uses indirect factors poorly linked to direct factors.

Activity data existence

1

activity data enable to assess level of calculation accuracy Tier 2

2

data incomplete

3

data do not exist

Activity data avaiability

1

open-source data

2

partial open-source data (some restrictions may apply, i.e. needs to be purchased)

3

data do not exist

Emission factor

1

explicit fator - with references

2

implicit fator - correlation R2 equal or higher than 0,7

3

implicit fator - correlation R2 lower than 0,7

Necessity for improvement

1

no need for improvement

2

improvement is needed in the method OR in the activity data obtention

3

improvement is needed in the method AND in the activity data obtention

General quality of data allocation

1

reliable data - able to reproduce the national inventory

2

reliable data, however, some discrepancies may occur

3

data with low reliability

Aspect

General Aspect of Historical Estimates (pre-national inventory - 1970-1989)

General quality of data allocation

1

reliable data - able to reproduce the national inventory

2

reliable data, however, some discrepancies may occur

3

data with low reliability