Land Subsidence along the Delta-Mendota Canal (2000-2009)
![map showing land subsidence along the Delta-Mendota Canal from 2000-2009 as measuring by spirit leveling](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/leveling_canal_final.jpg?itok=ek5Yd81p)
Detailed Description
This map illustrates the precise nature of the spirit-leveling method of measurement. The leveling data was collected by the California Department of Water Resources along the Central Valley's Delta-Mendota canal. The inset graph displays historical subsidence data calculated from leveling measurements for a portion of the Canal. These data are from the Delta-Mendota Water Authority and the Central California Irrigation District.
Sources/Usage
Public Domain.