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Australian Greenhouse Office National Carbon Accounting System Global Change Symposium

Australian Greenhouse Office National Carbon Accounting System Global Change Symposium 23March 2004. established in 1998 approx. $A2.5M per annum outsourced with central specification an operational output, not research, focus founded on proven sciences and scientific method. Initiation.

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Australian Greenhouse Office National Carbon Accounting System Global Change Symposium

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  1. Australian Greenhouse Office National Carbon Accounting System Global Change Symposium 23March 2004

  2. established in 1998 approx. $A2.5M per annum outsourced with central specification an operational output, not research, focus founded on proven sciences and scientific method Initiation

  3. Design • High Level Steering Committee • Strategic Plan (the national need) • Scoping Paper (the policy process) • Expert Workshops (the technical input) • Implementation Plan (the specifications) • International Review

  4. Previous Accounting Method • Prior to the NCAS Australia’s land based accounting was characterised by: • ad hoc inconsistent treatment of forest conversion data • emissions factors (rate of carbon loss) by expert judgment, international and national defaults • not directly applicable data • highly uncertain

  5. International Guidelines • Meets the Guidelines/Good Practice Guidance for: • definitional treatment • time series consistency • ‘cross-cutting issues’ of uncertainty , quality assurance • compliant with Marrakech Accord

  6. Land Based Accounting Approach • A relevant ‘Event’ activity (eg deforestation / reforestation) triggers entry of a land unit into the accounting framework • Once a land unit is in the framework, all carbon stock changes are accounted for from that time forward

  7. Land Cover and Change “… the most robust continental scale earth observation data set of its type ever assembled” “I was amazed at what they had accomplished in a relatively short period of time” NASA Chief Landsat Scientist

  8. 25m Resolution Imagery

  9. Forest Conversion(1972-2000) 200 x 160km Deforestation Reforestation

  10. Forest Conversion 1995 conversion 2000

  11. Rainfall (annual 1970-2000)

  12. Temperature (Annual 1970-2000)

  13. Evaporation (Annual 1970-2000)

  14. Productivity

  15. Soil Carbon

  16. Vegetation

  17. FullCAM Model

  18. FullCAM Point Model Output

  19. Forest Conversion and Carbon Change Comparison Carbon loss Conversion Regrowth Carbon gain

  20. Carbon Stock Change Output

  21. field programs, eg soils pairs/long term data forest models constrained to empirical evidence point models against spatial outputs remote sensing against time-relevant air photographs Verification

  22. Verification Total C Humic Organic matter Char

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