Watershed Assessment Model (WAM) Evaluation of the Suwannee River Basin Presented by Del Bottcher Soil and Water Engineering Technology, Inc.

Watershed Assessment Model (WAM) Evaluation of the Suwannee River Basin

Presented by

Del Bottcher

Soil and Water Engineering Technology, Inc.

WAM Development History• 1984 - 1st GIS watershed model “Basin” developed for

Kissimmee River, FL (UF / COE) • 1988 - Basin New Zealand (BNZ) GIS watershed model

(UF/SWET/NIWA)• 1988-96 - Multiple upgrades of BNZ (UF/SWET)• 1997 - First release of the Watershed Assessment Model - WAM

for Suwannee River WMD (SWET/Mock•Roos)• 1998 - Daily routing option of WAM released SJR-WAM• 2000 - WAMView Release (ArcView version of WAM Model)• 2000 - WAM-O(Okura Catchment) release in New Zealand • 2001-04 – Multiple upgrades of WAM

Depression

Overland

Wetland

Stream

Surface Routing

Grid Cell

Basin Outlet

GW

(1 ha)

How the Model Works!

GW

Groundwater Routing

RUNNING the INTERFACE

Suwannee River @ US 27

Suwannee River @ US 27

Suwannee River @ US 27Suwannee River @ US 27

Fanning Springs Flow

Fanning Springs Nitrogen

WAM Applications in FloridaSuwannee River

Water Managment District

Lower St. Johns

River Basin

HillsboroughRiver Basin

Cross Bayou Basin

Myakka River Basin

CaloosahatcheeRiver Basin

North PalmBeach County

CERP

LakeOkeechobee

CERP

UpperKissimmee

Basin

LakeIstokpoga

Basin

Fanning Springs Basin

Coastal Springs Basin

Estero BayBasin

Visit Us at www.swet.com

Field Model Parameters Files

Unique LU/SoilGrid Cell

Coverages

CellLoads

CumulativeLoads

WAMViewINTERFACE(Algorithms& SubModelsExecuted)

SJR-WAMOutputs andIntermediatefiles

Data InputsDatabases

GIS Coverages

AttenuationCoefficients

DistanceCoverage

Land Use Topography

Unique Parameter

Sets

Land Attenuation PreProcessing

Stream Reach Flow Rates &

Concentrations

GIS Coverage

ASCII Datefile

Interface Operation

Stream Routing Network

River Outlet Stages

Hydrography Subbasins

Land Use(LU)

Soils

Rainfall Zone (new)

Land Use

Soils

Default Values

BUCSHELL BLASROUTE

Create/Link Model

Parameter Sets for Cells

Simulate UniqueCells for Load

Estimates

Overlay Coverages

Attenuate toStreams

Stream Routing

Fortran SubModel

LEGEND

Edit Land Use& Display I/O Files

Generate Attenuation Distances

Climatic DataSewage Serv.

Area

Dynamic Modeling Process