28 October 2006 - Site visited. Acoustic depth gauge raised to 1.218 m above the surface.
7 January 2006 - Site visited. Acoustic depth gauge raised to 1.08 m above the surface.
4 February 2005 - Site visited. Acoustic depth gauge installed at 1.06 m above the surface.
November, 2004 - Raised tower.
This material is based upon work supported by the National Science Foundation under Grants Nos. OPP-0537827, OPP-0338147, and OPP-0230028. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the view of the National Science Foundation.