IPCC Emission Factor Database (EFDB)IPCC TFI Side Event, UNFCCC SB 58
6 June 2023, Bonn, Germany

Baasansuren Jamsranjav
IPCC TFI TSU

IPCC EFDB
• Launched in 2002
• Open library of emission factors (EFs) and other parameters withbackground information https://www.ipcc-nggip.iges.or.jp/EFDB/main.php
Default data from IPCC guidelines― Data from peer-reviewed scientific papers― Data from other publications (e.g., national reports)―• Communication platform to share data and information that can be usedfor estimation of national greenhouse gas (GHG) emissions/removals• EFDB is recognized by Parties to the UNFCCC as a useful resource forinventory compilers (e.g., FCCC/SBI/2011/5/Rev.1 and Decision
24/CP.19)

IPCC EFDB
• EFDB is an important resource for development of IPCC guidelines― A source of data/information for consideration by authors. Thus, populating
the EFDB with new data supports the process of refinement of IPCC default
EFs/parameters.
• Non-default EFs/parameters in the EFDB may be a useful source of information
for users in applying higher tier methods.
• The responsibility of an appropriate use of EFDB data always will remain withthe users.
• EFDB is a supporting tool for national GHG inventories and is not subject toformal IPCC review process.

IPCC EFDB
• Evolves dynamically: data proposals (e.g., submissions from inventory expertsand researchers) and data collection activities (e.g., expert meetings, literaturesearch)• Open to any data proposals ipcc-efdb@iges.or.jp― Data proposals are considered by EFDB Editorial Board for inclusion into
the EFDB― Criteria for inclusion of new data: robustness, applicability anddocumentation. The aim is not to undertake a full scientific assessment butto collect data that may be useful to users.
• Annual meeting of the Editorial Board to consider data proposals and discuss
how to improve/enhance the EFDB
― Summary of the meetings are published at IPCC TFI website
https://www.ipcc-nggip.iges.or.jp/meeting/meeting.html― 21st Meeting of Editorial Board (EB21), 16-19 May 2023, Christchurch, NewZealandPopulating EFDB

Data

Data

ExpertMeeting(DataMeeting)

EFDB

Accepted
Data

Defaults

Data
Provider

EditorialBoardTSUData• Initial check of data
proposals• Collection of new
data and preparationof data proposals

Data collection activities•

Expert Meetings on Data for the EFDB (Data Meetings) have been organizedsince 2008
― Attended by data providers (e.g., inventory experts, researchers) and
Editorial Board members― 21st Data Meeting (DM21), 17-18 May 2023, Christchurch, New Zealand

Literature/data search (e.g., peer-reviewed journal papers, national inventoryreports)• Total 2,445 data were accepted by the Editorial Board at the EFDB meetings(EB21/DM21) held on 16-19 May 2023 for inclusion into the EFDB.
•How to access EFDB
• Two types of applications:Web― Offline―• The offline application― Windows, Mac and Linux― Available for download at the EFDB website

https://www.ipcc-nggip.iges.or.jp/EFDB/main.php

EFDB search

Search criteria e.g.,
specify gas, type ofparameters etc.

Search options(e.g., Basic search)

Status of search

To narrow down
search results

Results can beexported in Excel file

Details of data

EFDB data output

Enhancement and improvement of EFDB
Regularly updated with new data
• New upgraded version of the EFDB to be released in 2023 includes e.g.,•

2019 Refinement categories― Enhanced search/filter functions (e.g., Select C pool, Regions, Countries criteria
are added for Basic search; static drop-down list in Source of data column)― Data statistics tables―

Enhancement and improvement of EFDB

Thank you
https://www.ipcc-nggip.iges.or.jp/index.html
https://www.ipcc-nggip.iges.or.jp/EFDB/main.php