2003 AMERIFLUX ANNUAL SCIENCE TEAM MEETING
October 14 - 16, 2003
Boulder Marriott, Boulder, CO
Day 1 Tuesday October 14

Poster session all day for site updates - Setup posters, available for viewing all day

8:30 Registration
9:00 Welcome (Law, Dahlman, Reck)
9:10 AmeriFlux Review - Status, guidance, progress (Dalhman)

North American Carbon Program - Progress report
9:40 NACP Objectives (Denning, Wofsy)
10:00 Tier 3 workshop results (Hollinger)

10:20 Coffee served next to poster room

10:40 Discussion - AmeriFlux role in NACP
Long-term network objectives
Network objectives for the coming year (next year - how are we doing?)

12:00 Lunch

1:00 Discussion - AmeriFlux role in NACP continued
Improving network coherence (Law, Margolis, Wofsy, Dahlman)
2:40 AmeriFlux as a facility (Dahlman)
3:00 Multi-dimensional forest ecosystem structure: requirements for remote sensing - workshop report related to flux studies (Margolis)

3:10 Poster Session - Annual Site Updates

Day 2 Wednesday October 15

8:00 Theme: Carbon Fluxes at Multiple Scales - Presentation and discussion of approaches. How do we get there from here?
8:10 Modeling the interaction between direct effects (climate, disturbance) and indirect effects (e.g. N deposition) - (Thornton)
8:30 Bottom-up scaling to region - An approach to using a nested hierarchy of observations and modeling (Law)
8:50 Discussant (Running) - How might we resolve bottom-up scaling issues?

9:30 Break

9:50 Regional fluxes - Overview of regional inversions linking tower fluxes, mixing ratios, and modeling (Denning, Davis)
10:10 Regional fluxes from mixing ratio data (Styles, Helliker/Berry)
10:40 Data assimilation: incorporation of topographic variability into advective flux estimates and using this in data assimilation to infer biological sources and sinks (Katul)
11:00 Data assimilation: Parameter estimation/uncertainty and multiple time scales/state space estimation theory (Schimel/Braswell)
11:30 Data assimilation: neural network (Valentini/Papale)
12:00 Discussion - How shall we proceed as a network to test these approaches?
(Group leads discussion points or assigns lead discussant)

12:30-1:30 Lunch

1:30 - 3:30 Breakout groups to discuss new scientific efforts and approaches to upscaling and downscaling fluxes:
Bottom-up modeling
Top-down approaches

3:30 Break

4:00 Group reports on new scientific efforts and approaches to upscaling and downscaling fluxes
5:00 Adjourn

Day 3 Thursday October 16

Theme: Reducing uncertainty in flux measurements
8:00 AmeriFlux site intercalibration- update, network suggestions for comparisons, analyses? (Loescher)
8:30 Flux analysis: WPL term revisited (Massman)
9:00 Progress on flux methods, advection studies (Mahrt, Staebler/Fitzjarrald, Lee, Andersen/Turnipseed)
10:20 Discussion and recommendations
10:50 Closing remarks
12 Noon Adjourn