North Delta Model peer review panel

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" rowspan="2" width=185 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <A HREF="index.htm" TARGET="_top" TITLE="David Ford Consulting Engineers"><U><B><IMG SRC="0d058960.png" border=0 width="88" height="150" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A></div> <bR> <div>    <FONT SIZE="1" COLOR="#000000" FACE="Verdana" > </FONT></div> <div> <B> <TABLE BORDER="0" CELLPADDING="4" CELLSPACING="1" WIDTH="156" BORDERCOLORLIGHT="#FFFFFF" BORDERCOLORDARK="#FFFFFF" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 27 WIDTH="146"><div> David Ford Consulting Engineers, Inc.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 27 ><NOBR><div> 2015 J Street, Suite 200</div> <div> Sacramento, CA 95811</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 27 WIDTH="146"><div> tel: 916.447.8779</div> <div> fax: 916.447.8780</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 27 WIDTH="146"><div> <A HREF="mailto:support@ford-consulting.com" TARGET="_top" TITLE="mailto:support@ford-consulting.com"><U>support@ford-consulting.com</U></A></div> </tD> </tR> </TABLE></B></div> <div>    </div> <bR> <div> <A HREF="index.htm" TARGET="_top" TITLE="David Ford Consulting Engineers"><U>Home</U></A></div> <div> <A HREF="id461.htm" TARGET="_top" TITLE="About us"><U>About us</U></A></div> <div> <A HREF="news.htm" TARGET="_top" TITLE="News"><U>News</U></A></div> <div> <A HREF="hydrologic_engineering.htm" TARGET="_top" TITLE="Hydrologic engineering"><U>Hydrologic engineering</U></A></div> <div> <A HREF="water_resource_planning.htm" TARGET="_top" TITLE="Water resource planning"><U>Water resource planning</U></A></div> <div> <A HREF="flood_economic_and_risk_analyses.htm" TARGET="_top" TITLE="Flood economic and risk analyses"><U>Flood economic/risk analyses</U></A></div> <div> <A HREF="flood_warning.htm" TARGET="_top" TITLE="Flood warning"><U>Flood warning</U></A></div> <div> <A HREF="decision_support_system_development.htm" TARGET="_top" TITLE="Decision support system development"><U>Decision support systems</U></A></div> <bR> </td> <td valign="top" colspan=2 height=40 BGCOLOR="#3366CC" TEXT="#080000" bgproperties="fixed" background="14400980ezthpx.png"> <div> <B>North Delta Model peer review panel</B></div> <div> </div> </td> </tr><tr> <td valign="top" height=440 colspan=2 BGCOLOR="#FFFFFF" TEXT="#080000" bgproperties="fixed" background="06c00962egerdp.png"> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="547" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP COLSPAN=3 BGCOLOR=#CC0000 HEIGHT= 16 WIDTH="537"><div> <B>Situation</B></div> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=3 HEIGHT= 221 WIDTH="537"><div> The California Department of Water Resources (DWR) is the State Lead Agency for implementation of North Delta Flood Control Improvements under the CALFED Bay-Delta Program. A key tool for flood control alternative development and analysis is a computer model that simulates the unsteady flow hydraulics of the North Delta system. A HEC-RAS computer model was developed under DWR's direction to support North Delta planning by DWR, Sacramento County, and the US Army Corps of Engineers. To establish the technical credibility of the model and to be consistent with the CALFED Bay-Delta Program's commitment to scientific peer review for CALFED actions, DWR convened a peer review panel for the model. Dr. J. J. DeVries chaired the five-member panel that was composed of experts in computer modeling of hydraulic systems; the members were from universities and federal agencies. This contract was for Dr. DeVries' activities in the peer review panel work.</div> <bR> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=3 BGCOLOR=#339933 HEIGHT= 16 WIDTH="537"><div> <B>Action</B></div> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=3 HEIGHT= 573 WIDTH="537"><div> The panel was to review the model theoretical background, model schematics, boundary condition assumptions, metadata, calibration and verification information, and related background information. The panel was to answer the following key questions: are assumption used to configure the model technically sound and adequate? Is the quality of input data sufficient to ensure reliable results? Has model calibration and verification been successfully completed? Can the model be success fully applied to evaluate proposed future projects?</div> <div> The panel met as a group and also worked separately to evaluate the model. Panel members reviewed model input and output, model structure, and the theoretical background of the HEC-RAS unsteady flow computational procedures. They conducted detailed review of model geometry, including cross sections, bridge data, levee overflow and breaching, and representation of storage areas. Numerical experiments comparing HEC-RAS with other models used for Sacramento-San Joaquin Delta modeling showed that the model produces accurate results for the proposed applications.</div> <div> The Peer Review Panel concluded in its final report that the HEC-RAS Unsteady Flow Model of the North Delta is appropriate for application to hydraulic conditions in the Sacramento-San Joaquin North Delta and is able to represent flooding conditions in the North Delta to be analyzed in future studies. </div> </tD> </tR> </TABLE></div> <bR> <bR> <div>  </div> <bR> </td> </tr></table></body>