Sherman Island Pasture

This site was our first venue in studying methane and carbon dioxide fluxes over peatland soils in the Delta. The site was chosen due to its long fetch and access to an AC power pole so we could run the power hungry pump for the LGR closed path tunable diode laser spectrometer to measure methane.   The site was grazed pasture infested with pepper weed.  Water tables moved up and down with irrigation and rain.

The site was in operation between 2007 and 2016. After it was converted to a restored wetland, US-Sne.

It is registered as an Ameriflux site, where data and site information can be attained

https://ameriflux.lbl.gov/sites/siteinfo/US-snd

The site is upwind of the Antioch Bridge and across the river from the PGE power plant, near Marsh Landing where Evo Baldocchi was born and reared.

Our first investigation into the nuances of this site are reported in the following paper

Baldocchi, D., et al. (2012). "The challenges of measuring methane fluxes and concentrations over a peatland pasture." Agricultural and Forest Meteorology 153: 177–187.

We also used the site to test the eddy covariance system on measuring greenhouse gas fluxes

Detto, M., et al. (2011). "Comparing laser-based open- and closed-path gas analyzers to measure methane fluxes using the eddy covariance method." Agricultural and Forest Meteorology 151(10): 1312–1324. doi 10.1016/j.agrformet.2011.05.014

And due to the flat nature of the site and extended fetch, we tested some underlying boundary layer meteorology scaling rules

Detto, M., et al. (2008). "Surface heterogeneity and its signature in higher-order scalar similarity relationships." Agricultural and Forest Meteorology 148(6-7): 902–916. doi 10.1016/j.agrformet.2007.12.008