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GFOI R&D and GOFC-GOLD Land Cover Science Meeting
4th Expert workshop on lessons learned from Accuracy Assessments in the context of REDD+: Uncertainties of biomass maps, emission factors and emissions.


Paris, France

27-28 September, 2018


Organized by:

The GFOI R&D Coordination component, the GOFC-GOLD Land Cover Office, and the World Bank / FCPF

Final Report

The final report, which also contains background information on the meeting can be found in the Meeting report.

Workshop objectives

The overall aim is to provide improved guidance on accuracy assessments in the context of REDD+. In particular, building on the discussions of the meeting in Bilbao, the workshop will provide guidance to practitioners to meet the IPCC good practice criteria related to bias and uncertainty in estimates of emissions factors. We aim specifically aim to:

  • Review and follow up on progress made at previous workshops
  • Discuss biomass data sources the issues related to uncertainty assessments
  • Case studies of countries who have developed EFs with uncertainties.
  • Guidance on the use of biomass maps in national assessments
  • Estimates of uncertainties of EF. This would be a general document which addresses aspects of EFs, with a focus on uncertainties related to allometric equations
  • Develop synthesis towards providing more guidance (scientific papers, a MGD module or other form of guidance) on:
  • Approaches and experiences to estimate uncertainties of Emissions Factors (from components such as biomass sources, allometry, BCEF, root/shoot)
  • The integration of uncertainty from activity data and emissions factors (including Monte Carlo)
  • If time permits, produce a plan to provide guidance on:
  • Generating uncertainty when using Tier 3 methods
  • Options for reducing uncertainty


Center for International Forest Research (CIFOR)
European Space Agency (ESA)
GFOI R&D Coordination component
GOFC-GOLD Land Cover Office
US Silvacarbon Program
Wageningen University
World Bank FCPF

Organizing Committee

Andres Espejo (World Bank / FCPF)
Martin Herold and Sarah Carter (GFOI, GOFC-GOLD)


World Bank, Paris Conference Center
Paris, France