Technical Assessment of IPCC Inventory
Guidelines: Sectoral Issues
IPCC Scoping Meeting for a Methodology Report(s) to refine
the 2006 IPCC Guidelines for National Greenhouse Gas Inventories,
29-31 August 2016,
Minsk, Belarus
Baasansuren Jamsranjav
Technical Support Unit, IPCC TFIOverview• Technical assessment has been conducted through combination of an
online questionnaire survey (from 30 January to 27 February 2015)
and expert meetings• Three expert meetings on sectoral issues held in 2015 and 2016
Expert Meeting for Technical Assessment of IPCC Inventory Guidelines(Energy, IPPU, Waste Sectors), 29 June -1 July 2015, Geneva, Switzerland– Expert Meeting for Technical Assessment of IPCC Inventory Guidelines(AFOLU Sector), 13-16 July 2015, Sao Paulo, Brazil– Expert Meeting to follow up on specified issues from the 2015 expert
meetings, 25-26 April 2016, Wollongong, Australia–

On-line Questionnaire Survey• The survey aimed to collect inputs from inventory experts about theneed and feasibility of methodological development or refinement for
specific categories and gases–832 comments on sectoral issues• Task Force Bureau (TFB) considered the results of the survey anddeveloped a provisional list of issues for consideration more in detail atthe expert meetings

Expert Meetings in 2015

• The meetings aimed:– To assess the maturity of scientific advances and availability of new data
– To identify any specific areas or issues that should be prioritized in TFI’s future work
– To consider cross-sectoral issues including improvement of the inventory tools ofthe IPCC

• Considered comments submitted by experts in response to the online
questionnaire survey to make recommendations to TFB on:– Categories for which the science is sufficiently mature and data are available torecommend refinement or development of inventory guidance– Where such refinement or development would lead to a noticeable improvement toinventory guidance– Specific type of refinement that is needed (e.g. update or addition of default
emission factors)– How these refinements could be made (e.g. Methodology Report)• Outcomes of the expert meetings were considered by TFB and reflectedin the TFI’s work programme for 2016

Expert Meetings in 2015: Outcomes (1)• Some of the issues need to be addressed by producing a newMethodology Report(s). It is necessary to:– develop new or additional guidance on sources and/or gases that are notcovered by the 2006 IPCC Guidelines (e.g. GHG emissions fromunconventional oil and gas production, GHG emissions from hydrogenproduction, N2O emissions from industrial wastewater treatment)– refine guidance to reflect significant scientific or technical developments
since the 2006 IPCC Guidelines were produced (e.g. guidance on land
representation linking land classification system and digital maps)– update or add default data of emission factors and other parameters forsome categories (e.g. fugitive emissions from oil and gas, substitutes forozone depleting substances used for refrigeration and air conditioning,
N2O emissions from wastewater treatment, values for litter, deadwood,biomass expansion factors (BEF)/biomass conversion and expansion
factors (BCEF), direct and indirect N2O emissions from managed soils)

Expert Meetings in 2015: Outcomes (2)• Some other issues can be addressed by utilizing other means (IPCC
Supporting Materials) including– Emission Factor Database (EFDB)– TFI’s webpage on Frequently Asked Questions (FAQs)– Technical bulletins or expert meeting reports• Some issues require further intensive consideration by relevant experts
before starting refinements. Consequently, after TFB’s furtherconsideration, the following 4 areas were identified:––––

Unidentified sources of perfluorocarbons (PFCs)
Emissions from soils
Land representation
Emissions from flooded land

Expert Meeting in 2016: Follow-up Meeting• Focused on the four main areas identified• To make recommendations to the TFB on whether the issues need to beaddressed in a new Methodology Report(s)• Key considerations were:
Whether the science is sufficiently mature and data are available torecommend refinement or development of inventory guidance– Whether such refinement or development would lead to a noticeable
improvement of the 2006 IPCC Guidelines– Specific type of refinement or update that is needed (e.g. update or additionof default emission factors/parameters, provision of a new method)–

Expert Meeting in 2016: Outcomes of the Follow-up Meeting• Some issues need to be addressed in a new Methodology Report(s):––––Unidentified sources of PFCs (e.g. new guidance on “non-anode effect” foremissions from aluminium production, new guidance on emissions from rare earth
elements production, update of some default emission factors)
Emissions from soils (e.g. alternative method for estimation of C stock change inmineral soils under cropland and grassland, update of default C stock change
factors, disaggregation of emission factor for N inputs for direct N2O emissions frommanaged soils)
Land representation (e.g. elaboration of existing guidance on Chapter 3 of Volume
4 including elaboration on the guidance on linking land classification system withremote sensing and digital maps, use of global data sets, products and tools forland use representation, elaboration of guidance on activity data uncertainties andhow to use Tier 1 and 2 methods with Approach 3)
Emissions from flooded land (e.g. new guidance on flooded land)• Some other issues can be addressed by utilizing other means such as
TFI FAQs website (e.g. list of potential sources of training materials onland representation)

Technical Assessment: Outcomes• Co-Chairs Summary of the experts meetings available at TFI website
http://www.ipcc-nggip.iges.or.jp/meeting/meeting.html• Annotated list of the issues identified for a Methodology Report(s)available at Electronic Discussion Group (EDG) website http://www.ipccnggip.iges.or.jp/forumtree/– 31 major issues are identified (there are sub-issues)
Energy: 6
 IPPU: 9
 AFOLU: 13
 Waste: 3Thank you
http://www.ipcc-nggip.iges.or.jp