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page 8 of 142 RIVM report 773301 001 / NRP report 410200 051
RIVM report 773301 001 / NRP report 410200 051 page 9 of 142 6XPPDU\ EDGAR 2.0 provided global annual emissions for 1990 of greenhouse gases CO 2 ,CH 4 and N 2 Oand precursor gases CO, NO x , NMVOC and SO 2 , both per region and on a 1 o x1 o grid. Similar inventories were compiled for a number of CFCs, halons and methyl bromide, methyl chloroform. This report discusses the applications of EDGAR 2.0 over the last couple of years as well as the validation and uncertainty analysis carried out. In addition, the approach taken to compile EDGAR 3.0 is discussed. This work is linked into and part of the *OREDO (PLVVLRQV ,QYHQWRU\ $FWLYLW\ (GEIA) of the ,QWHUQDWLRQDO*OREDO$WPRVSKHULF&KHPLVWU\3URJUDPPH(IGAC/IGBP). $SSOLFDWLRQVRI('*$5 The number of downloads from the FTP site increased from 50 per quarter in 1997 to nearly 100 in mid-1999. Of the 700 quarterly registered users in the logged 2½ year period, most reside in OECD countries. Most of these are modellers, but EDGAR data are also extensively used for policy applications for which emissions data on country level were calculated with the EDGAR information system. $LPRI('*$5 The overall aim for Version 3.0 was to update the inventories from 1990 to 1995, and for direct greenhouse gases also to 1970, to include new greenhouse gases. After consultation of the users, the objectives have been somewhat changed and extended. Thus, specific aims were: ú update/extension from 1990 to 1995; ú extend time series for direct greenhouse gases to 1970-1995; ú include new ‘Kyoto’ greenhouse gases HFCs, PFCs, SF 6 ; ú greenhouse gas emissions also on per country basis using IPCC source categories; ú include NH 3 ; ú improve/include uncertainty estimates and time profiles. For updating and extended time series different priorities were given for the following groups of gases: ú direct greenhouse gases CO 2 ,CH 4 ,N 2 O and new gases HFCs, PFCs, SF 6 : 1970-1995; ú ozone precursors CO, NO x , NMVOC as well as SO 2 and NH 3 : update 90 and 95; ú extend CFCs, halons, HCFCs to 1900-1995 Special attention was given to the compilation of a reference dataset for new gases as none was available. For the update of the current Version 2.0, we followed the following principles: ú $FWLYLW\GDWD: update by including relevant statistics for the period 1970-1995, after checking for possible changes of source categories; this implies the inclusion of the ‘new’ countries, e.g. for the former USSR. ú (PLVVLRQIDFWRUV: only to be changed for 1990 if validation showed major discrepancies; only to be changed for 1995 compared to 1990 if there are concrete indications that there major changes have occurred that cannot be neglected; the same holds for factors for 1970, in particular for direct greenhouse gases. ú *ULGPDSV: only to be updated if maps available of better quality or better applicability. ú $GGLWLRQDOVRXUFHV: coal fires, oil fires, vegetation fires in temperate regions, domestic waste combustion and wastewater handling were added, based on the significance in some countries for specific emissions. 9DOLGDWLRQ In order to judge whether update of methods or emission factors for 1990 is needed, a validation of V2.0 data for 1990 was performed: for greenhouse gases with National Communications submitted
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