PERSPECTIVES AND APPLICATION OF THE

IWRM MODELING TOOLS IN RIVER BASINIWRM MODELING TOOLS IN RIVER BASIN

ORGANISATIONSORGANISATIONS

Júcar River Basin Study Case (Spain)

Teodoro Estrela MonrealJefe de la Oficina de Planificación HidrológicaConfederación Hidrográfica del Júcar

Main characteristics of Júcar River Basin District

Area (km2) 43.000

Permanent population(2005)

4.792.528

E i l t l ti 360 760Equivalent populationdue to tourism (2005)

360.760

Irrigated area(ha) 352.004

Total water demand(Mm3/año)

3.317(Mm3/año)

IWRM modelling tools

• Water resources assessment

• Flows and storages in hydrological cycle• Flows and storages in hydrological cycle

• Aquifer hydrodynamics

• Water uses and pressures on water bodies• Water uses and pressures on water bodies

• Ecological river flows and wetland water needs

• Water pollution: surface and groundwater• Water pollution: surface and groundwater

• Water resources systems:

• Water resources allocation to water demands• Water resources allocation to water demands

• Water resources exploitation

• Floods• Floods

• Risk maps

Water resources assesment models

Clima

Nieve

Clima Precipitación

Precipitación líquida

Temperatura

Evapotranspitaciónpotencial

Evapotranspitaciónreal

p

Humedad del suelo

ExcedenteEscorrentía superficial

Escorrentía

Geomorfología

Escorrentía

Volumen y nivel piezométrico en el

InfiltraciónEscorrentía subterránea

Escorrentía total

Pérdidas de cauces

Pérdidas de cauces

Hidrogeologíaen cauce

piezométrico en el acuíferoTrasferencias

lateralesTrasferencias

laterales

PATRICAL model

Aquifer models

3D MODFLOW modelMancha Oriental aquifer

Environmental river flows

Indexes of habitat sustainability

Velocities obtained with hydraulic modelsVelocities obtained with hydraulic models

Water requirements for wetlands

Water needs (quantity and quality) to maintain the functionality and structure of ecosystems in the wetlands

250

300

350

400

450

500

m3/

año

Hydrodynamics and water quality: 3D mathematic SOBEK model

0

50

100

150

200

970/

71

972/

73

974/

75

976/

77

978/

79

980/

81

982/

83

984/

85

986/

87

988/

89

990/

91

992/

93

994/

95

996/

97

998/

99

2000

/01

hm

Inflows to Albufera Lake: hydrologic and hydraulic models

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2

Año

Aportaciones Retornos de riego Vertidos

Salidas EDARs Medio Media 80

Chlorophyll aChlorophyll a

Water pollution

Nitrate simulation models(PATRICAL) are being usedto define groundwaterto define groundwaterenvironmentalobjectives, includingexemptionsexemptions.

Agrarian nitrogen excess (kg/ha/year)

Nitrate concentration in Plana Castellón aquifer

Pressure – Impact GIS model: GEO-IMPRESS

Industrial discharge Fish farm dischargeUrban discharge

River Flows

Concentration: phosfate, organic matter River Flows organic matter

Water resources systems: models

Mijares-Plan Castellón system: topologyMijares-Plan Castellón system: topology

Mijares-Plan Castellón system: AQUATOOL

scheme (SIMGES)

Mijares-Plan Castellón system: AQUATOOL

scheme (SIMGES)

10

Water resources systems: models

Júcar system: AQUATOOL scheme (SIMGES)Júcar system: AQUATOOL scheme (SIMGES)y ( )y ( )

Water resources systems: allocations

ALARCÓN: Regulación CONTRERAS:

Regulación

V l i

Sagunto30 hm3/año

Riegos del

Valencia100 hm3/año

gCanal Júcar

Turia60 hm3/año

C N /

Riegos Tradicional

C. N. Cofrentes

20 hm3/añoRiegos de La Mancha TOUS:

Laminación y regulación

Tradicionales del Júcar

725 h 3/ ñ

Albacete 30 hm3/año

La Mancha400

hm3/año hm3/año

Water resources systems: exploitation

Probability of fails in water demand supply and probability of reservoir volume status

Probabilidades de Fallo en Demanda.Demanda: Riegos Canal J-T

d(%

)

40

50

Deficit (75 - 100) Deficit (50 - 75) Deficit (25 - 50) Deficit (2 - 25)

Pro

babili

dad

Meses

10

20

30

Mar-02 Abr-02 May-02 Jun-02 Jul-02 Ago-02 Sep-02 Oct-02

Probabilidades de Estado en Embalse.Total Alarcon+Contreras+Tous volumenes en hm3

100

0 - 195.38 195.38 - 390.76 390.76 - 586.15 586.15 - 781.53 781.53 - 976.91

976.91 - 1172.29 1172.29 - 1367.67 1367.67 - 1563.06 1563.06 - 1758.44 1758.44 - 1953.82

Pro

ba

bili

da

d(%

)

50

Probabilidades de Fallo en Demanda.Demandas Ribera Baja

Probabilidades de Fallo en Demanda.Demandas Ribera Alta

MesesMar-02 Abr-02 May-02 Jun-02 Jul-02 Ago-02 Sep-02 Oct-02

Demandas Ribera Baja

Pro

babili

dad(%

)

5

10

15

20

25

30

35

Deficit (75 - 100) Deficit (50 - 75) Deficit (25 - 50) Deficit (2 - 25)

Demandas Ribera Alta

Pro

babili

dad(%

)

10

20

30

40

50Deficit (75 - 100) Deficit (50 - 75) Deficit (25 - 50) Deficit (2 - 25)

AQUATOOL model: SIMRISKAQUATOOL model: SIMRISKMeses

Mar-02 Abr-02 May-02 Jun-02 Jul-02 Ago-02 Sep-02 Oct-02

MesesMar-02 Abr-02 May-02 Jun-02 Jul-02 Ago-02 Sep-02 Oct-02

Floods: hydraulic modelling

Software: Infoworks RS 2D: • Finite elements • Triangular irregular cells

DEM: Lidar 1x1 m

Manning rugosity: CORINE g g y+ Ortophoto

Boundary conditions: design y ghydrographs for different T and sea water levels

Rio Girona: Flooding area

Conclusions

• River Basin Organisations (RBOs) in Spain use advances

modelling tools in the main IWRM water issues.

•Water manager decisions are supported by these IWRM•Water manager decisions are supported by these IWRM

tools.

• Need of RBOs IWRM tools should be prioritised in R+D+I

programmesprogrammes.

• Coordination between RBOs, Consulting Firms, Research

Institutes and Universities is crucial.