USGS staff use a surface elevation table, or SET, to measure marsh elevation. The leveled arm has nine pins. Staff measure the height of each pin above the arm to determine how much the marsh surface has changed in elevation.
This project has been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement CE-98T25101 to the Bay Foundation of Morro Bay. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does the EPA endorse trade names or recommend the use of commercial products mentioned in this document.
