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Introduction. Greeting and announcements. What is the ChEAS RCN? Vision for the workshop. Goals of the workshop. Structure of this workshop. A brief history of ChEAS. The Chequamegon Ecosystem-Atmosphere Study (ChEAS) Research Collaboration Network (RCN).
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Introduction • Greeting and announcements. • What is the ChEAS RCN? • Vision for the workshop. • Goals of the workshop. • Structure of this workshop. • A brief history of ChEAS.
The Chequamegon Ecosystem-Atmosphere Study (ChEAS) Research Collaboration Network (RCN) • Funded by the NSF’s Biological Sciences Directorate. • 5 year project, started ~ January 2002. • Proposal written by Eileen Carey and Bruce Cook. Initiated at the suggestion of Jim Ehleringer, U.Utah, at the 4th ChEAS meeting, Madison, WI, June, 2001.
ChEAS RCN, continued Objectives • Provide multidisciplinary training and research opportunities to new scientists working across traditional boundaries in the fields of ecology, hydrology and atmospheric science. • Promote the development of integrative research projects building upon the ChEAS infrastructure, especially those focusing on bridging the gap between leaf- and canopy-scale flux measurements and the global CO2 flask sampling network and understanding the causes of seasonal to interannual variability in forest-atmosphere exchanges. • Promote data sharing. • Guide the future direction of ChEAS research.
ChEAS RCN, continued Structure • Steering group + about 20 “core participants” (= research group leaders with research interests matching the objectives of the RCN). Open to new members. • Workshops. 2002, 2004, 2006. Funds to bring in guest scientists and participating students and scientists. 2 week duration. Second 2002 gathering, 23-24 October, Boulder, Colorado. • ChEAS meetings, each year. 1-2 days. • Laboratory exchanges. Up to 5 visits/year, duration of 2 weeks to a few months.
Vision for the workshops ChEAS includes many research groups working at different sites with different methods and within different disciplines. The workshops provide a means for members of the participating research groups to learn the methods, data, and scientific results of other groups. The workshops provide a forum for enhancing collaboration among groups, and drafting new projects, research papers and proposals. Guest speakers enhance the workshop by teaching us of relevant work outside of ChEAS. We also hope to interest new investigators via these invitations.
Goals of this workshop:Interannual Variability in CO2 and H2O Fluxes in Northern Temperate Forests • Understand interannual variability in CO2 and H2O fluxes observed during ChEAS. • Understand differences in fluxes observed among ChEAS research sites. • Draft new papers and proposals following the results of our proceedings. • Includes renewals of WLEF and W/L Creek projects, due to NIGEC on 3 September, 2002. Core projects.
Structure of this workshop • Morning lectures, midday demos, afternoon discussions and analyses. • Each day is focused on one “method.” Hopefully each afternoon the results of the method of the day are applied to answering the interannual variability and intersite comparison questions. • Each day we should • Update the ChEAS web site with projects, publication lists, and electronic proceedings. One volunteer/day. • Have one person per discussion group volunteer to summarize the discussion (electronic + verbal) and provide a brief summary the following morning. • Brief presentations are welcome at any time.
A brief history of ChEAS • Following the domestication of goats in the Euphrates-Tigris River Valley…
A brief history of ChEAS • Unknown date in pre-history, U. Wisconsin begins forestry research in the Chequamegon National Forest. • 1990 or so, NOAA-CMDL starts instrumenting tall towers for trace gas measurements. • December 1991, Davis and Bakwin start talking in Boulder, due to Michael Trolier and the Chemrawn VII meeting in Baltimore. • 1994. NIGEC funds Bakwin and Davis for eddy flux measurements at WLEF. NOAA-funded CO2 measurements start in 1994. Flux measurements start in 1995. AmeriFlux takes shape ~ 1996(?).
A brief history of ChEAS • 1997. Bolstad, Davis, Denning, Gower, Gutschick, and MacKay (others?) all begin new projects in the Chequamegon region, all focused to some extent around the WLEF flux and mixing ratio measurements. Gower organizes a winter 1998 meeting at Kemp. ChEAS is born. Bakwin creates the acronym at this meeting. • Past ChEAS meetings: • Kemp, February 1998. • St. Paul, May 1999. • St. Paul, June 2000. • Madison, June, 2001 • ChEAS RCN funded in early 2002.
Major goals of ChEAS • Understand forest-atmosphere carbon and H2O cycling. • Understand the responses of forest-atmosphere carbon and H2O cycling to • Climate variability and change • Land use change • Learn how to up-scale forest-atmosphere fluxes from chambers to forest stands, and from forest stands to all upper Midwest forests. • …
Changes since we met in Madison, June 2001 • ChEAS special issue submitted to Global Change Biology. Mixed results. 4/11 accepted. 1 just submitted. 1 to be resubmitted shortly. • ChEAS RCN funded! • Powered parachute experiments conducted. • Regional [CO2] project funded. • Airborne CO2 flux and FIA project rejected. • Expanded water flux project rejected. • North American Carbon Plan drafted, implementation group working. • Substantial progress in flux data analyses and ABL CO2 budget analyses using ChEAS data.
