Chapter 5 Crosscutting Issues Crosscutting issues General issues

Chapter 5 Cross-cutting Issues

Cross-cutting issues Ø General issues Ø Common subjects to other chapters Ø Conceptual basis for issues developed in other chapters

Cross-cutting issues in GPG-LULUCF Ø Same issues of GPG-2000 Ø Highlight the main points covered in GPG-2000 Ø Reference to GPG-2000 Ø Develop special considerations for the LULUCF sector

Cross-cutting Issues Ø Identifying and quantifying uncertainties Ø Sampling Ø Methodological choice Identification of key categories Ø Quality assurance and quality control Ø Time series consistency and recalculations Ø Verification

Identifying and quantifying uncertainties Ø Guidance for estimate uncertainties Ø Guidance to combine uncertainties Ø Types of uncertainty in the LULUCF sector

Sampling Ø Particularly important in the LULUCF sector ü Land areas ü Biomass stock ü Soil carbon Ø Guidance for planning and use of sampling surveys Ø Relation between sampling design and uncertainty level

Identification of key categories Ø Categories that most contribute to inventory uncertainty Ø Approach expanded to cover also sink categories Ø Additional guidance for Kyoto Protocol articles 3. 3 and 3. 4

Quality assurance and quality control Ø Aspects specific for checks in the LULUCF sector üLarge use of sampling üLarge use of models

Time series consistency and recalculations Ø Methodological change Ø Periodic (not annual) data

Verification Ø Independent check Ø Alternative methods Ø Application of verification for the LULUCF sector

Latest developments Ø First review: ~ 600 comments Ø Many recommending simplification Ø Detailed material moved to other chapters Ø Common subjects moved from other chapters (e. g. Sampling)