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page 56 of 142 RIVM report 773301 001 / NRP report 410200 051
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The EDGAR inventories are used for providing realistic emission factors as well as activity data to
the RIVM’s Global Change model ‘IMAGE 2’, in particular for fuel combustion, but also regional
averaged emission factors for other sources.
EDGAR inventories are also used by many modellers, either as EDGAR inventories or as
specific GEIA inventories, which have been developed to support atmospheric modelling work, in
particular under the umbrella of IGAC. EDGAR inventories developed as GEIA inventories are (A =
Anthropogenic sources; N = Natural sources):
ú N 2 O (A + N) (BouwmanHWDO1995)
ú NH 3 (A + N) (Bouwman HWDO 1997)
ú NMVOC (A) [total and for 23 compound groups] (Berdowski HWDO 2001; in prep.)
ú CO (A) (Olivier HWDO., 1999b)
ú PFCs (A) and SF 6 (A) (Olivier and Bakker, 1999c)
as well as:
ú CO 2 (A) – as alternative dataset, showing sectoral details
ú parts of CH 4 (A) – as part of the GEIA CH 4 (A + N) inventory
Other compound inventories are sometimes used as default for GEIA inventories (e.g. the SO x /NO x
1990 inventories, for countries where no official data exists). The TNO expertise in PM x emissions in
Europe is also used in the compilation of the GEIA primary particles inventory.
The 6 th Scientific Conference of the International Global Atmospheric Chemistry Project (IGAC)
held in Bologna, Italy, in September 1999, was attended by about 370 scientists. IGAC, part of IGBP,
is the forum for atmospheric chemistry modelling research. It was observed that of the 55 oral
presentations about 20% referred to GEIA or EDGAR inventories. In addition to the 35 persons
showing interest in GEIA products, GEIA members contacted about 30 other modelers at the
conference on the subject of emissions. Thus, it can be concluded that at least about 20% of the
modelers are using, or intending to use GEIA inventories (or may contribute to improving them).
Most of the modelers not using GEIA inventories did not do so because there was not a GEIA
inventory available for the species they were modeling. EDGAR inventories were often used when
specific GEIA inventories were either unavailable or were considered out of date for the modeling
purpose (i.e. not existing for a recent year). As a result of a poster presentation of GEIA and EDGAR
inventories, about 35 modelers expressed their interest in receiving information on updates of GEIA
and EDGAR. Some of them also offered to become member of a GEIA Study Group or to contribute
specific inventories; eight of these 35 are working in developing countries.
Other identified users include:
ú
Members of the Netherlands Centre for Climate Research (CKO), e.g. IMAU (e.g. Houweling et
al., 2000; Roelofs and Lelieveld, 2000)
ú NCAR/NOAA (Smith HWDO., 2001)
ú Max Planck Institute Mainz (Lawrence HWDO 1999a; Lawrence and Crutzen, 1999b)
ú Historical emission inventories of EDGAR/HYDE (Den Elzen HWDO., 1999)
ú Integrated N assessments using NH 3 ,NO x and N 2 O inventories (Olivier HWDO 1998)
ú MIT Joint Program on the Science and Policy of Global Change, e.g. in the Emissions Prediction
and Policy Analysis (EPPA) model (Mayer HWDO., 2000)
ú Other NRP-MLK projects: e.g. emission reductions for non-CO 2 greenhouse gases by De Jager HW
DO.; validation of CH 4 emissions in Northwest Europe by Berdowski HW DO and CH 4 from rice
fields in Asia by Denier van der Gon HWDO.).
These are just a selection of the applications of the gridded inventories.