Drought experience in the Júcar River Basin Authority. Javier Ferrer Head of the Hydrological Planning Department Júcar River Basin Authority

Transcripción

1 Drought experience in the Júcar River Basin Authority Javier Ferrer Head of the Hydrological Planning Department Júcar River Basin Authority 1

2 Index Júcar River Basin Authority (CHJ) and recent drought Situation indicators used by CHJ Actions during current drought Actions to minimise environmental impacts Management and control actions Actions to obtain additional resources Saving actions 2

3 Júcar River Basin Authority and current drought 3

4 CANARIAS GALICIA PRINCIPADO DE ASTURIAS EXTR EMADURA CASTILLA-LEON CANTABRIA PAIS VASCO NAVAR RA MADRID CASTILLA-LA MANCHA ANDALUCIA CEUTA LA RIOJA MELILLA MURCIA ARAGON VALENCIA CATALUÑA BALEARES Description of the Júcar River Basin Authority Surface (km 2 ) Permanent population Equivalent population due to tourism Irrigation surface (ha) Water demand (hm 3 /year) Júcar Demanda total por uso 0% 1% 3% 17% 79% Agrícola Urbano Industrial Ganadero Recreativo Demanda total por origen de los recursos 2% 0% 4% Superficial 42% Subterráneo Reutilización Desalinización 52% Transferencias (MCT) 4

5 2005/06 Three consecutive years of intense drought Rainfall in the Júcar system / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /07 mm año Rainfall Júcar Historical average rainfull Average since 1980

6 Natural discharge up to the Tous reservoir hm3 1940/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /07 año Year 2005/06 historical minimum since 1940/41 Three consecutive years of intense drought Total contribution into Tous reservoir Avegare contribution of historical Natural Regime Average since 1980 in Natural Regime

7 Legal Frame Royal Decree 1265/2005, of October 21st, by which exceptional administrative measures are adopted for the management of hydrological resources and for the correction of drought effects in the hydrological basins of rivers Júcar, Segura and Tajo, extended until 30th November 2008 by Royal Decree-Law 9/2007, of October 5th. The Permanent Commission of the Governing Board, constituted on December 1st 2005, has developed a detailed follow-up of the drought evolution, meeting up monthly. Thanks to its constitution, public participation is made effective in drought management. 7

8 Meeting Calendar 1) 1 st December ) 21 st December ) 21 st January ) 13 th February ) 15 th March ) 18 th April ) 22 nd May ) 27 th June ) 19 th July ) 24 th August ) 12 th September ) 28 th September ) 15 th November ) 15 th December ) 15 th February ) 20 th April ) 18 th July ) 17 th September ) 31 st October ) 12 th December ) 15 th February ) 14 th March ) 18 th April ) 12 th June ) 16 th September ) 17 th October ) 22 th December ) 12 th March

9 Composition of the Commission: RD 1265/2005 Delegate organ from the Governing Board for the drought follow-up and management Entitled to vote (13) Presides: President of JRBA JRBA (3) : Commissioner, Technical Director, Head HPD of the JRBA. Ministries (2): Industry (IGME) and MAPA CCAA (Autonomous Communities, 4) Users (3): Valencia Town Hall Real del Júcar Ditch. Iberdrola, S.A. In advisory capacity (4) Environmental Interest Defence: Agró Entrepreneurial Representation: AVA Union representation: CCOO Local Entities: Albacete municipality Numerous guests 9

10 Global drought indicator in the Júcar system Drought Decree. RD 1265/2005 Permanent Commission Constitution 1,0 0,9 0,8 0,7 0,6 0,5 0,4 0,3 0,2 0,1 0,0 JÚCAR Evolución Indice de sequía Action Plan Approval Special Drought Plan Approval Order Ministry of Environment 698/2007 March 21st oct-01 feb-02 jun-02 oct-02 feb-03 jun-03 oct-03 feb-04 jun-04 oct-04 feb-05 jun-05 oct-05 feb-06 jun-06 oct-06 feb-07 jun-07 oct-07 feb-08 jun-08 Entry of the Júcar system in emergency scenario 10

11 Action measures Emergency Scenario -Groundwater extraction: Intensify extractions - Non-conventional resources: Maximum possible reuse - Non-conventional resources: Maximum possible desalination - Alternative sources for supply - Restriction of surface water for irrigation - Restriction of surface water for the supply volume - Activation of the Rights Exchange Centre to ensure supply - Environmental measures: Guards plan and control of the Public Hydraulic Domain 11

12 Indicators used for water resources management Type of drought indicators: General analysis Drought operational indicators (official, institutional) Drought indicators in rainfall Total discharge indicators 12

13 Volume in the Júcar system September

14 Indicator Evaluation and Threshold Definition Identify the origin of water resources associated to units with most important demand and representative indicator selection: Pluviometry River Discharge Volume kept in reservoirs Piezometric levels in aquifers Vmin Status Index Vmed 0.5 Status 0,75 1,00 NORMAL 0,50 0,75 0,30 0,50 PRE-ALERT 0,15 0,30 ALERT 0,00 0,15 EMERGENCY Vmax 14

15 34 singular indicators in JRBA: 9 reservoir volume 9 piezometric level 9 fluvial networks (3 months) 7 pluviometers (12 months) SISTEMA EXPLOTACIÓN Ind Estado ÍNDICE SIST. 31/03/2008 EXPLOTACIÓN 1 0,99 2 Cenia-Maestrazgo 0,52 0,66 3 0,74 4 0,39 5 Mijares-Plana de Castellón 0,82 0,67 6 0,66 7 0,35 8 Palancia-Los Valles 0,70 0,57 9 0, , , ,04 13 Turia 0,19 0, , , , , , , , , ,58 Júcar 23 0,16 0, , , , , , ,53 Serpis 30 0,80 0,72 31 Marina Alta 0,82 0,82 32 Marina Baja 0,88 0, ,79 Vinalopó-Alacantí 34 0,70 0,73 SISTEMA EXPLOTACIÓN Ind Estado ÍNDICE SIST. 30/09/2008 EXPLOTACIÓN 1 0,93 2 Cenia-Maestrazgo 0,49 0,62 3 0,70 4 0,56 5 Mijares-Plana de Castellón 0,82 0,73 6 0,72 7 0,55 8 Palancia-Los Valles 0,92 0,70 9 0, , , ,41 13 Turia 0,44 0, , , , , , , , , ,97 Júcar 23 0,19 0, , , , , , ,68 Serpis 30 0,63 0,64 31 Marina Alta 0,78 0,78 32 Marina Baja 0,91 0, ,79 Vinalopó-Alacantí 34 0,70 0,73 15

16 Drought indicators JRBA (31 March 2008). Sistema Jun Jul Ago Sep Oct Nov Dic Ene Feb Mar Cenia-Maestrazgo 0,67 0,63 0,61 0,64 0,7 0,59 0,74 0,69 0,66 0,66 Mijares-Plana de Castellón 0,66 0,66 0,65 0,72 0,73 0,66 0,68 0,67 0,66 0,67 Palancia-Los Valles 0,66 0,61 0,55 0,64 0,67 0,59 0,68 0,61 0,58 0,57 Turia 0,44 0,39 0,38 0,4 0,44 0,45 0,43 0,39 0,37 0,34 Júcar 0,29 0,26 0,23 0,23 0,22 0,19 0,16 0,14 0,14 0,14 Serpis 0,41 0,43 0,45 0,5 0,69 0,63 0,78 0,70 0,67 0,72 Marina Alta 0,51 0,51 0,55 0,69 1,00 0,92 0,96 0,89 0,90 0,82 Marina Baja 0,80 0,80 0,80 0,85 1,00 1,00 1,00 0,92 0,92 0,88 Vinalopó-Alacantí 0,74 0,73 0,83 0,95 1,00 0,86 0,87 0,80 0,82 0,73 SCENARIOS System Risk Valuation Scenario Cenia-Maestrazgo LOW NORMAL Mijares-Plana de Castellón LOW NORMAL Palancia-Los Valles LOW NORMAL Turia MEDIUM PRE-ALERT Júcar VERY HIGH EMERGENCY Serpis LOW NORMAL Marina Alta VERY LOW NORMAL Marina Baja VERY LOW NORMAL Vinalopó-Alacantí VERY LOW NORMAL Drought status indicator per exploitation system Scenario Inputs Status Index Values Scenario outputs During Condition Condition Normal - 0,50-3 months 3 consecutive months Pre-alert ]0,5-0,30] in a row Ie 0,50 2 consecutive months 2 months Ie 0,50 Alert ]0,3-0,15] in a row 6 consecutive months Ie ]0,5-0,30] 2 consecutive months 2 months Ie ]0,5-0,30] Emergency <0,15 in a row 6 consecutive months Ie ]0,3-0,15] Output Scenario Normal Pre-alert Alert 16

17 Drought indicators JRBA (30 September 2008). System Dec Jan Feb Mar Apr May Jun Jul Aug Sep Cenia-Maestrazgo 0,74 0,69 0,66 0,66 0,58 0,71 0,71 0,70 0,66 0,62 Mijares-Plana de Castellón 0,68 0,67 0,66 0,67 0,62 0,65 0,68 0,68 0,65 0,73 Palancia-Los Valles 0,68 0,61 0,58 0,57 0,55 0,57 0,73 0,74 0,67 0,70 Turia 0,43 0,39 0,37 0,29 0,33 0,39 0,50 0,51 0,48 0,48 Júcar 0,16 0,14 0,14 0,14 0,20 0,29 0,34 0,39 0,38 0,40 Serpis 0,78 0,70 0,67 0,72 0,70 0,73 0,75 0,78 0,82 0,64 Marina Alta 0,96 0,89 0,90 0,82 0,76 0,83 0,86 0,86 0,83 0,78 Marina Baja 1,00 0,92 0,92 0,88 0,84 0,85 0,91 0,91 0,93 0,91 Vinalopó-Alacantí 0,87 0,80 0,82 0,73 0,57 0,75 0,80 0,82 0,77 0,73 SCENARIOS System Risk Valuation Scenario Cenia-Maestrazgo LOW NORMAL Mijares-Plana de Castellón LOW NORMAL Palancia-Los Valles LOW NORMAL Turia MEDIUM PRE-ALERT Júcar HIGH ALERT Serpis LOW NORMAL Marina Alta VERY LOW NORMAL Marina Baja VERY LOW NORMAL Vinalopó-Alacantí VERY LOW NORMAL Drought status indicator per exploitation system Scenario Inputs Status Index Values Scenario Outputs During Condition Condition Normal - 0,50-3 months 3 consecutive months Pre-alert ]0,5-0,30] in a row Ie 0,50 2 consecutive months 2 months Ie 0,50 Alert ]0,3-0,15] in a row 6 consecutive months Ie ]0,5-0,30] 2 consecutive months 2 months Ie ]0,5-0,30] Emergency <0,15 in a row 6 consecutive months Ie ]0,3-0,15] Output Scenario Normal Pre-alert Alert 17

18 Drought indicators JRBA (28 February 2009). May Jun Jul Ago Sep Oct Nov Dic Ene Feb Cenia-Maestrazgo 0,71 0,71 0,70 0,66 0,62 0,66 0,68 0,60 0,63 0,61 Mijares-Plana de Castellón 0,65 0,68 0,68 0,65 0,73 0,74 0,72 0,68 0,68 0,68 Palancia-Los Valles 0,57 0,73 0,74 0,67 0,70 0,73 0,64 0,69 0,68 0,64 Turia 0,39 0,50 0,51 0,48 0,48 0,53 0,61 0,62 0,62 0,63 Júcar 0,29 0,34 0,39 0,38 0,40 0,44 0,51 0,46 0,47 0,49 Serpis 0,73 0,75 0,78 0,82 0,64 0,67 0,67 0,73 0,72 0,67 Marina Alta 0,83 0,86 0,86 0,83 0,78 0,62 0,67 0,51 0,56 0,56 Marina Baja 0,85 0,91 0,91 0,93 0,91 0,81 0,97 0,97 0,88 0,91 Vinalopó-Alacantí 0,75 0,80 0,82 0,77 0,73 0,57 0,61 0,58 0,61 0,60 SCENARIOS Sistema Valoración riesgo Escenario Cenia-Maestrazgo BAJO NORMALIDAD Mijares-Plana de Castellón BAJO NORMALIDAD Palancia-Los Valles BAJO NORMALIDAD Turia BAJO NORMALIDAD Júcar MEDIO PREALERTA Serpis BAJO NORMALIDAD Marina Alta BAJO NORMALIDAD Marina Baja MUY BAJO NORMALIDAD Vinalopó-Alacantí BAJO NORMALIDAD Drought status indicator per exploitation system Valores del Índice de estado Entradas a los escenarios Salidas de los escenarios Escenario Durante Condición Condición de salida Normalidad - 0,50-3 meses 3 meses consecutivos con Prealerta ]0,5-0,30] Normalidad consecutivos Ie 0,50 Alerta Emergencia 2 meses consecutivos 2 meses consecutivos ]0,3-0,15] < 0,15 2 meses consecutivos con Ie 0,50 6 meses consecutivos con Ie ]0,5-0,30] 2 meses consecutivos con Ie ]0,5-0,30] 6 meses consecutivos con Ie ]0,3-0,15] Prealerta Alerta 18

19 Rain indicators Oct 2007 Mar 2008 Compared historical average Oct 2007 sep

20 Júcar runoff indicators Latest natural discharge evolution Discharge hm 3 /month Historical position jun-08 jul-08 ago-08 sep-08 abr-08 may-08 jun-08 jul-08 ago-08 sep-08 Alarcón Contreras Alarcón-Molinar Contreras-Molinar-Tous Total up to Tous Tous-Sueca Total Discharge to Alarcón ACCUMULATED in Natural Reg. since oct Percentile (P (q<q)) 4% 9% 12% 12% 12% 12% Discharge to Tous ACCUMULATED in Natural Reg. since oct Percentile (P (q<q)) 4% 6% 13% 13% 14% 14% Historical series of 67 years 20

21 Action Plan 2005/08 Actions to minimise environmental impacts Management and control action Actions to obtain additional resources Saving actions 21

22 Environmental measures Flow maintenance Wetland surveillance 22

23 Surveillance and maintenance of minimum flows Irrigation Júcar River From aquifer From Júcar river 23 1-abr-07 1-m ay-07 1-jun-07 1-jul-07 1-ago-07 1-sep-07 1-oct-07 1-nov-07 1-dic-07 1-ene feb m ar-08 1-abr-08 1-m ay-08 1-jun-08 1-jul-08 1-ago-08 1-sep-08 1-oct-08 1-nov-08 Caudal m 3/s Q [El Picazo] Q [Los Frailes]

24 Surveillance middle reach of Júcar river Objective: flow maintenance downstream from Alarcón reservoir Júcar river in summer 1995 Júcar river in summers 2006 and

25 Use reduction Public offer agreement for water rights acquisition in the middle reach of the Júcar basin due to environmental reasons Objective: Reducing extractions in the middle section of the Júcar river, both in surface water and in groundwater with a greater effect on the river flow Rights acquisition through reduction of irrigated surface Rights acquisition by using less water-consuming crops (spring crops). 25

26 Uses reduction Selection criteria: 1. Effects on river (0-20 points) Offered price (0-20 points) Extension: has Right volume: 148 hm Time frame: seasons Celdas Inactivas Río Jucar Transmisividad m /día m /día m /día m /día m /día m /día km Maximum amount Minimum amount 0,1957 /m 3 0,13 ( /m 3 ) Maximum amount Minimum amount 0.25 /m ( /m 3 ) 26

27 OPAD 2007: Total HGU Presented requests: 119 Right volume (hm 3 ) 56,8 Renounced volume (no economic compensation) (hm 3 ) 22,9 Offered volume (hm 3 ) 27,3 Materialised budget (million ) 5,5 Reserved volume (hm 3 ) 6,6 OPAD (I,II,III) 2008: Use reduction Total HGU Presented requests: 234 Right volume (hm 3 ) 109,6 Renounced volume (no economic compensation)(hm 3 ) 12,5 Offered volume (hm 3 ) 50,6 Materialised budget (million ) 12,7 Reserved volume (hm 3 ) 46,5 27

28 Monthly and accumulated balance Ganancias-Pérdidas (hm3/mes) Ganancias-Pérdidas (hm3) oct oct nov nov dic dic Picazo Los Frailes ah ah ah ah oct -8,78-4,19-4,09-3,87 nov -2,36-2,47-2,62-2,70 dec 1,15-0,69-2,08-2,31 jan 2,44-0,34-1,85-1,04 feb 2,59-0,47-1,18-0,72 mar 0,56-1,83-1,12-0,18 apr -6,93-2,89-1,24-0,98 may -16,06-4,73-2,78-2,15 jun -14,95-6,01-4,21-2,55 jul -11,13-9,22-3,74-2,86 aug -10,14-8,18-3,93-4,34 ene Picazo Los Frailes (Monthly accumulated) ene feb feb mar mar abr abr may may jun jun jul jul ago ago sep ah ah ah ah sep ah ah ah ah sep -6,75-5,83-4,02-3,87 ah ah ah ah oct -8,78-4,19-4,09-3,87 nov -11,13-6,66-6,71-6,57 dec -9,98-7,36-8,78-8,88 jan -7,54-7,69-10,63-9,92 feb -4,95-8,16-11,81-10,64 mar -4,39-9,99-12,93-10,82 apr -11,33-12,88-14,17-11,81 may -27,39-17,61-16,96-13,96 jun -42,34-23,62-21,16-16,51 jul -53,47-32,84-24,90-19,37 aug -63,61-41,02-28,84-23,72 sep -70,35-46,85-32,86-27,58 28

29 Monitoring network in Albufera, Valencia 29

30 Environmental measures Albufera Lake Ramsar Wetland Monitoring network: Lake level Outflow in the 5 canals 30

31 Levels in Albufera lake (mm.s.n.m.) oct 1-nov 1-dic 1-ene 1-feb 1-mar Lake level in Pujol canal 2007/08 Lake level in Pujol canal 2006/07 Average level Lake level in Pujol canal 2005/06 1-abr 1-may 1-jun 1-jul 1-ago 1-sep 31

32 oct 1-nov 1-dic 1-ene 1-feb 1-mar 1-abr 1-may 1-jun 1-jul 1-ago 1-sep Salidas Gola Pujol 2006/07 Salidas Gola Pujol 2007/ Aportes acumulados (hm3) Salidas acumuladas (hm3) 1-oct 1-nov 1-dic 1-ene 1-feb 1-mar 1-abr 1-may 1-jun 1-jul 1-ago 1-sep Calibrated outflow in the 5 canals Salidas Gola Perellonet 2006/07 Salidas Gola Perellonet 2007/08 Salidas acumuladas (hm3) 1-oct 1-nov 1-dic 1-ene 1-feb 1-mar 1-abr 1-may 1-jun 1-jul 1-ago 1-sep Salidas Totales 5 Golas 2006/07 Salidas Totales 5 Golas 2007/ Aportes acumulados (hm3) 1-oct 1-nov 1-dic 1-ene 1-feb 1-mar 1-abr 1-may 1-jun 1-jul 1-ago 1-sep Salidas Gola Perelló 2006/07 Salidas Gola Perelló 2007/08

33 Management and control measures 33

34 Júcar management simulation model 34

35 Campaign forecast 2007/2008 (calculation from April 1st 2008) Supply in 2006/07 Discharge 2005/06 (blue) Dreadful discharge 1993/94 (orange) Stored volume in Alarcón, Contreras and Tous (hm3) mes 01-oct-07 oct nov dec jan feb mar apr may jun jul aug sep Hidro_05_06 Hidro_93_ / / /06 Minimum Volume 35

36 For additional resources Supply from other rivers Use of drought wells (joint use) Used water reuse 36

37 Historical analysis of water supply Supply for the metropolitan area of Valencia with surface water from rivers Júcar and Turia hm / / Vol Total Júcar + Turia Vol River Júcar Vol River Turia 37

38 Drought wells and re-pumping in the irrigation system 2008 Wells Repumping Total premises Real del Júcar Ditch Real de Escalona Ditch 7 7 Real de Carcaixent Ditch 3 3 Sueca irrigation union 8 8 Cullera irrigation union Mayor de la Villa and Honor de Corbera Ditch General Community from Canal Júcar-Turia Total

39 Accumulated extractions in drought wells Volume (hm3) start-may jun jul aug sep oct nov-dec jan-feb mar-apr

40 Monthly control Albufera Lake and Springs Drought wells: flows and levels Re-pumping in irrigation network 40

41 Basic Monitoring Network General Piezometry Albufera Piezometry Hydrometry Specific drought network Piezometry 46 Piezometry = 72 Piezometry and Quality 26 Quality = 33 Quality 7 Hydrometry 4 Hidrometry =4 41

42 GWB Valencia South Plain (Alcàntera del Xuquer) (Picassent) (Gavarda) (Manuel) (Carcaixent) (Alzira) (Carlet) (Masalavés) (Carlet) (Alzira) 42 m.s.n.m 24-mar abr may jun jul ago sep oct nov dic ene feb mar abr may jun jul ago sep oct nov dic ene feb mar abr may jun jul ago sep oct nov-08

43 Enero de

44 Volumes of treated water reused during drought EDAR Pinedo II. Extension Quart-Benatger Carraixet Paterna-Fte. del Jarro UDA Tradit. I. Vega de Valencia. Rest of Ditches Del Oro Ditch Tradit. I. Vega de Valencia. Rest of Ditches Tradit. I. Vega de Valencia. Rest of Ditches Tradit. I. Vega de Valencia. Rest of Ditches Tradit. I. Vega de Valencia. Real Ac de Moncada TOTAL User Favara Ditch (B) Del Oro Ditch (G) Ditches of Andarella (B), Xirivella (B), Benager (B), Faitanar (B) y Favara (G) Rascanya Ditch (B) Tormos Ditch (G) Real de Moncada Ditch (B) (thousand m 3 ) (thousand m 3 ) (thousand m 3 ) (thousand m 3 ) (thousand m 3 ) (thousand m 3 ) (thousand m 3 ) 2005/ / /

45 Water conservation and saving measures 45

46 Suministros anuales Turia y Júcar (Superf_Júcar+Superf_Turia+Abast. Valencia_Turia+Abast. Valencia_Júcar+Reutilización+Pozos+Rebombeos) Volumen (hm3) Abast. Supply Valencia_Turia Valencia_Turia Abast. Valencia_Júcar Supply Valencia_Júcar Superf_Turia Surf_Turia Superficial_Júcar Surf_Júcar Pumping Re-pumping Bombeos Reuse Rebomb Supply Valencia Reutilización Surf Turia+Jucar 46

47 Emergency works

48 Emergency works Main investments in: Improvement in the supply guarantee for urban areas and sources for alternative resource Improvement in drinking water treatment systems Improvement in the efficiency of irrigation systems Emergency Works Budget (thousand ) Emergency Works ,0 Emergency Works ,0 Emergency Works ,0 Emergency Works 2008 (in course) 4.940,0 Total ,0 48

49 Thank you for your attention! 49