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Site: Twitchell Wetland West Pond
The site is a 7.4-acre restored wetland on Twitchell Island, that is managed by the California Department of Water Resources (DWR) and the U.S. Geological Survey (USGS). It forms a rectangle that is aligned east-west along the predominate wind direction of the region. In the fall of 1997, the site was permanently flooded to a depth of approximately 25 cm. The wetland was almost completely covered by cattails (Typha spp.) and tules (Schoenoplectus acutus) by the third growing season. A flux tower equipped to analyze energy, H2O, CO2, and CH4 fluxes was installed on May 17, 2012. Details on this pilot study are produced in a set of papers by Miller and colleagues [R. L. Miller and Fujii, 2010; R.L. Miller et al., 2000; R.L. Miller et al., 2008]. The fetch of this site extends 160 m in the predominant wind direction (252 degree counterclockwise from true North). We have to reject data when the wind direction lies outside of 240 to 290 degree counter clockwise from true North.
Last field site visit: more fieldnotes
Equipment installed at the site:
|This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.|