Use of Models and Facility-Level Data in Greenhouse Gas Inventories
Use of Models and Facility-Level Data in Greenhouse Gas Inventories
Use of Models and Facility-Level Data in Greenhouse Gas Inventories
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<strong>Use</strong> <strong>of</strong> <strong>Models</strong> <strong>and</strong> <strong>Facility</strong>-<strong>Level</strong> <strong>Data</strong> <strong>in</strong> <strong>Greenhouse</strong> <strong>Gas</strong> <strong>Inventories</strong><br />
if the sample was sufficiently large, representative <strong>and</strong> homogenous with<strong>in</strong> the sub-population then the reported EF data<br />
may be utilised for that segment <strong>of</strong> the <strong>in</strong>ventory.<br />
Start<br />
<strong>Facility</strong> <strong>Level</strong> Activity <strong>Data</strong><br />
Does the facility level data provide full<br />
coverage <strong>of</strong> the sector?<br />
YES<br />
<strong>Use</strong> <strong>Facility</strong> level data set <strong>in</strong><br />
national <strong>in</strong>ventory<br />
NO<br />
<strong>Use</strong> <strong>Facility</strong> data for portion covered<br />
<strong>Use</strong> output <strong>of</strong> EF decision tree for<br />
uncovered portion.<br />
Start<br />
<strong>Facility</strong> <strong>Level</strong> Emission Factors<br />
Can it be demonstrated that the<br />
coverage <strong>and</strong> sample size <strong>of</strong> the facility<br />
data sample is sufficient<br />
NO<br />
YES<br />
Is the sample unbiased?<br />
NO<br />
YES<br />
Does the facility data sample have an<br />
approximate normal distribution?<br />
YES<br />
Is the mean EF <strong>of</strong> the facility data<br />
significantly different to the method 1<br />
default EF?<br />
NO<br />
Can the sample be divided <strong>in</strong>to<br />
homogenous groups (e.g. technology<br />
type, region, coal bas<strong>in</strong>) such that bias<br />
is not present?<br />
YES<br />
Does the sub sample<br />
cover more than X% <strong>of</strong> the sub group<br />
population?<br />
YES<br />
NO<br />
NO<br />
Should a part <strong>of</strong> the data<br />
be applied to the <strong>in</strong>ventory? (Can the new<br />
data improve the old?)<br />
YES<br />
NO<br />
Do not use facility data directly <strong>in</strong><br />
<strong>in</strong>ventory but for QA/QC checks.<br />
YES<br />
NO<br />
Extrapolate sub group data to sub<br />
group residual.<br />
<strong>Use</strong> facility specific EF data.<br />
Apply IEF for facility data to<br />
uncovered portion <strong>of</strong> sector.<br />
Review <strong>in</strong> light <strong>of</strong> QA/QC plan.<br />
<strong>Use</strong> facility specific EF data.<br />
<strong>Use</strong> exist<strong>in</strong>g <strong>in</strong>ventory default EF<br />
for the uncovered portion.<br />
Apply an EF to the uncovered<br />
portion that ma<strong>in</strong>ta<strong>in</strong>s the<br />
previous IEF for the whole sector.<br />
IPCC Expert Meet<strong>in</strong>g Report 105 TFI