Denmark's National Inventory Report 2005 - Submitted under the ...

For non-road machinery and working equipment the detailed methodology determines the
amount of fuel used. The subsequent adjustment of fuel totals to be used in the estimates for other
sectors (see Section 3.2.1) ensures that no double counting of emissions is made.
For the remaining transport sectors the simple method ensure that all fuel is accounted for in the
emission estimations.
As a part of the general QA/QC work all time-series of emissions in the NFR and SNAP source
categories are examined and significant changes are checked and explained. Moreover, a comparison
is made to the previous year’s estimate and any major changes are verified. As a last point, a
data transfer control is made from SNAP source categories to aggregated NFR source categories.
A sector report for road transport and other mobile sources is published each year. Prior to it’s
publication the draft report is reviewed by two external experts. The expert recommendations are
used to improve the work on inventories and documentation. Some important recommendations
to the 2002 sector report were to include tables with emission factors and total emissions in the
main report part, and to explain the level of fuel differences for road transport and civil aviation
according to fuel balance. These recommendations have subsequently been incorporated in the
2002 sector report (Winther, 2004) and the present NIR report.
The recommendations of the reviewers are also to include some text in the sector report for each
transport mode explaining the existing emission legislation and the associated emission test procedures.
In addition more documentation of background data and trends should be given in cases
where Tier2 estimates are made. These recommendations will be considered in the next sector and
NIR reports.
Formal agreements of data deliverance have been made between NERI as an inventory agency and
relevant institutions to ensure the provision of consistent, accurate and timely background data
used in the national inventory. The institutions are the Danish State Railways (DSB) (emission
factors for diesel locomotives), CAA-DK (flight data) and DEA (energy statistics). At the moment a
formal agreement is being negotiated with the Danish Ministry of Transport (road transport fleet
and mileage data).
Presently the level of QA/QC of the Danish emission inventories for transport is incomplete in
comparison to the prescriptions given in the IPCC Good Practice Guidance and Uncertainty Management
in National Greenhouse Gas Inventories (IPCC). It will, however, continuously be aspired
to improve the QA/QC according to the IPCC Good Practice Guidelines (IPCC, 2000), and work
will be initiated to improve next year’s inventory in this part.
3.3.5 Recalculations
The following recalculations and improvements of the emission inventories have been made since
the emission reporting in 2003:
Road transport
For the years 2000-2002 the division of the moped fleet into EURO categories has been changed
due to better information from the Danish Motorcycle Association. In addition the fuel consumption
factors for EURO I and II mopeds have been corrected for the same years.
Also for 2000-2002 the general gasoline RVP value has been changed to 60 for the month of September,
according to information from the Danish EPA.
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