Slide 1

Large Scale River Network Routing Using RAPIDAhmad TavakolyDecember 01 2009

University of Texas at Austin

GIS in Water ResourcesWhy Continental Scale?Dynamics of the Earth System

Control of Earth's Climate

Human Development and Economic Activity

Plant and Animal Life

The intimate relation Global HydrologyClimate DynamicsGlobal EcologyGeophysicsHydrological Cycle

Ref. Larson et al, 2007Land Surface ModelsLandRiversAtmosphereBottom Boundary ConditionWater InflowRiver Network ModelRAPID developed by Cedric David,2009

Links with LSMsComputes Flow and Volume Using Muskingum MethodUsing NHDPlus

RAPID Model Application

Total River Reaches:5175 ReachesAverage Length:3.00 KmAverage Catchment:5.11 km2RAPID Model ApplicationTotal River Reaches:74615 ReachesAverage Length:3.00 Km

Results01 January 2004 31 December 2007

ResultsGuadalupe River

ResultsGuadalupe RiverResultsSan Antonio River

ResultsSan Antonio River

ResultsSan Antonio and Guadalupe Basins

20 April 2004ResultsRegion 12

20 April 2004ResultsScalability of parallel computation

Lone star

ConclusionRAPID Results are very Satisfactory.

RAPID shows scalability for the simulation considered.

Question?

well-known Muskingum floodrouting equation

Input Data for RAPIDRun off from LSMsVwj = wave celerity

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