Abstract
Using the Terrain Data Model for Reservoir Capacity Studies
Track: Water Resources
Author(s): Mark Amend, Avry Dotan, Jay Cuetara
A multibeam sonar bathymetric survey was performed at Lake Berryessa, California, to support the accurate determination of reservoir capacity for the Solano County Water Agency. As the lake was not at full capacity during the survey, the volume estimation required extending the bathymetric coverage up towards the shoreline. By merging the high-density multibeam data with public domain photogrammetrically-derived breaklines and mass points, the ArcGIS terrain data model could be used for volume calculations. Limitations of the data model were uncovered during this process that might benefit from new procedures such as terrain 'editing' and an expansion of the terrain data model parameters. A simple script was used for calculating reservoir volumes at 0.1 foot intervals over a 300 foot elevation change to full capacity. The blend of CAD, GIS, and dense xyz data in the terrain data model successfully supported the updated capacity curve for the SCWA.
Mark Amend
Global Remote Sensing, LLC
17706 Brickyard Rd
Suite 200
Bothell , Washington 98011
United States
Phone: 206-568-7683
E-mail: mamend@grsensing.com
Avry Dotan
AD Consultants
15 Sullivan Drive
Moraga , California 94556
United States
Phone: 925-631-9890
E-mail: avry@aol.com
Jay Cuetara
Solano County Water Agency
P.O. Box 349
6040 Vaca Station Road
Elmira , California 95625
United States
Phone: 707-455-1104
E-mail: jcuetara@scwa2.com