Case Study Diamond Valley Lake

Static Positioning

Case Study: Deformation Monitoring at Diamond Valley Lake

Diamond Valley Lake is the largest water reservoir in southern California.

In order to monitor the stability of its three earthen dams, the Metropolitan Water District (MWD) of Southern California has constructed a seven station continuous GPS network.

Leica GPS reference stations, sampling at 2 seconds, stream their data by radio modem to a central computer system.

Raw data and photo courtesy of Mike Duffy and Cecilia Whitaker, Metropolitan Water District of Southern California

The data are collected and analysed in real-time. The software performs a full network analysis, and provides real-time and time-averaged position solutions. Also, the software incorporates motion alarms, and remote status displays.

Horizontal and vertical scatter Screen Shot of four monitoring stations being positioned relative to the reference station WDR is shown.

Three tests were performed demonstrating Geodetics technology:

Displacement Test

Positioning Test and

Performance Test