TERRESTRIAL CARBON OBSERVATION SYNTHESIS WORKSHOP
Ottawa, Canada
Sponsored by: Global Terrestrial Observing System (GTOS)
Hosted by: Canada Centre for Remote Sensing (CCRS)
OBJECTIVES:
1. Assemble and summarize existing information on information requirements regarding terrestrial carbon cycle.
2. Assemble and synthesize existing information on observation requirements needed to obtain the carbon cycle information, assuming that top-down (inversion modeling) and bottom-up (ecosystem modelling) strategies are employed in an integrated manner. All important data/observation requirements are to be considered (satellite, surface, atmospheric, etc.).
3. Evaluate the consistency, completeness, and reliability of the information on observation requirements defined above, and refine these to the extent possible.
4. Conduct initial evaluation of existing data or observations in relation to the observation requirements, identify major gaps or deficiencies, and propose solutions to the extent possible.
5. Identify actions that need to be taken to: complete the definition of observation requirements; complete the analysis of deficiencies of existing observations and needed remedies; link terrestrial and ocean carbon cycle observations; and prepare a report on the terrestrial carbon observation theme for IGOS-P.
6. Based on the above, prepare a 'straw-man' framework report as an input for a joint IGBP/GTOS meeting in May 2000. This meeting will engage the scientific community more fully to complete the design of a comprehensive approach to terrestrial carbon observations and the links between terrestrial and ocean components of the global carbon cycle.
AGENDA:
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DAY 1: am |
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Chair: |
Gosz |
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0800 Registration |
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A. SETTING THE STAGE |
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0830 Introduction, background, workshop objectives |
Gosz |
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0900 IGBP Carbon cycle research programme |
Hibbard |
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B. CURRENT AND ANTICIPATED INFORMATION NEEDS REGARDING GLOBAL TERRESTRIAL CARBON DISTRIBUTION - PRESENTATIONS |
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Questions to be addressed in each presentation: a) what specific information on terrestrial carbon is required, and why? b) to provide that information, what specific observations are required, and at which spatial and temporal resolutions? The above is to be based on existing/published information and presented in a structured way, to the extent possible |
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0930 Kyoto Protocol |
Solomon |
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0955 IPCC (1996 guidelines): |
Cihlar and Brown |
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1020 Refreshment break |
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1040 Atmospheric inversion modelling |
Denning |
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1105 Understanding terrestrial carbon cycle |
Potter |
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1125 Conventions (CCD and CBD) |
Gommes |
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1150 Global Observation of Forest Cover |
Ahern |
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1215 Lunch (on premises) |
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1300 GTOS/GTOS requirements |
Cihlar |
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1325 US Carbon cycle research and observation |
Wickland |
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1350 Canadian terrestrial carbon research and requirements |
Chen |
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C. OBSERVATION REQUIREMENTS FOR SELECTED REGIONAL STUDIES |
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Question to be addressed: What are the observational requirements of a 'dual constraint' approach to terrestrial carbon distribution? The review is to be based on existing/published studies/information, to the extent possible |
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1415 Introduction |
Denning |
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1445 Multiple-constraint approach to carbon cycle observations in the Australasian region |
Raupach |
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1530 COBRA |
Saleska |
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1555 TRANSCOM |
Denning |
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1620 Oceanic carbon cycle observation |
Bretherton |
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1645 Discussion |
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DAY 2 am: |
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Chair: |
Cihlar |
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0830 Satellite and surface data us |
Running |
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0850-1500 Breakout 1 |
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Charge: synthesize existing information on a) information and b) observation requirements. For each variable, be specific in terms of observations required/missing, what, where, how made, how many needed. Consider specifically data needs for initial conditions, boundary conditions; for model development/testing, and validation of products. If feasible, suggest how the information gaps might be filled, using expertise available at the workshop. Summarize the findings using a consistent format. |
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a) top-down: |
Denning (leader) |
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b) bottom-up (fluxes, stocks): |
Gower |
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1500 Plenary presentations and discussion |
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1540-1700 Writing session |
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Evening social event |
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DAY 3 |
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Chair: |
Denning |
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D. STATUS OF OBSERVATIONS AND NETWORKS - PRESENTATIONS |
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Question: a) What data collection systems/observation networks are available related to terrestrial carbon, and what is their present status? b) What data are available for terrestrial carbon, and what are their characteristics (completeness, quality, availability), both current and past? c) How good are our capabilities of extracting quantitative biophysical parameters from raw measurements? |
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0830 Atmospheric observations |
Raupach (speaker) |
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0910 Surface observations: fluxes |
Olson |
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0850 Surface observations: stocks |
Olson |
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0910 Satellite observations |
Townshend |
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0930-15.20 Breakout 2: |
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Charge: a) Review and document adequacy and completeness of existing observation networks/capabilities: satellite, fluxes, stocks, atmospheric b) Review and document existing data sets: satellite, fluxes, stocks, atmospheric |
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Atmospheric and meteorological networks and data sets: |
Denning (leader) |
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Surface stocks and fluxes: |
Gower and Olson |
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Satellite: |
Townshend |
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1520 Plenary presentations and discussion |
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1620-1730 Writing session |
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DAY 4 |
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Chair: |
Gosz |
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0830 Breakout 3: |
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Charge: Identify unresolved issues (compare requirements with current situation, as follow-up based on results of the first breakout); potential solutions, steps to be taken, etc. |
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Surface fluxes, pools and associated observations |
Gower and Olson |
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Atmospheric observations |
Denning and Raupach |
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Satellite observations |
Ahern and Wickland |
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1120 Plenary presentation and discussion |
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1200 Lunch |
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1300 Conclusion and next steps |
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1400-1600 Final writing session |
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OUTPUTS: |
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A "straw-man" report with: - synthesized information requirements |
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