Your SlideShare is downloading. ×
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Session4.2 montan aqua_emmanuel reynard
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Session4.2 montan aqua_emmanuel reynard

263

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
263
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
8
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Gestion durable de l’eau Programme nationale de recherche PNR61 Emmanuel REYNARD Institute of Geography, University of Lausanne Integrated water management at the regional scale in a context of climate uncertainty. The project MontanAquaProjektteam:WP1: Karl Herweg, Martin Hölzle, Matthias Huss, Martina Kauzlaric, Hanspeter Liniger, Emmanuel Rey, Bruno Schädler (Uni Bern, Uni Fribourg)WP2: Mariano Bonrisposi, Emmanuel Reynard (Uni Lausanne)WP3: Olivier Graefe, Christine Homewood (Uni Fribourg)SP: Stephan Rist, Flurina Schneider (Uni Bern)
  • 2. The Alps = Water tower of Europe Viviroli & Weingartner (2004), in Hydrology and Earth System Sciences
  • 3. Dry areas in the AlpsMean summer precipitations © Swiss Hydrological Atlas
  • 4. The project MontanAqua (2010-2013) Synthesis package WP 2 WP 1 WP 3 climate (change) socio- water availability different water resources economic and in space and time users political system
  • 5. The project MontanAqua (2010-2013)
  • 6. The study area South-facing slopes in the Valais 500 m to 3000 m asl.11 municipalities, 36‘500 inhabitants760‘000 tourist nights per year
  • 7. Pictures: E. Rey, 2011
  • 8. Tseuzier dam and artificial lakePicture: E. Reynard, 2010 Capacity: 51 million cubic meters
  • 9. High demographic dynamic Bonriposi 2011
  • 10. Conceptualisation of the water systemCatchments (headwaters) Water availability today, 2050 Water consumption Icogne Montana Randogne Mollens today, 2050 Water management Lens Chermignon today, 2050 Venthône MiègeClusters of communes St- Veyras Sierre Léonard
  • 11. Conceptualisation of the water system Schneider, 2012
  • 12. Preliminary results: the Plaine Morte glacier Plaine Morte glacier (2800 m asl.) Montana (1500 m asl.) Sierre (500 m asl.)© Schweizer FlugwaffeRole of the glacier in a region approaching water stress? “Additional ” water to the region? Runoff (mio m3/yr) VS BE Runoff from Plaine-Morte region Huess, 2012
  • 13. Preliminary results: karstic system EO - Eosin UR -Uranin Simme - LenkTzeusier lake - Loquesse Contribution: some mio. m3/yr, cf. water consumption approx. 10 mio. m3/yr UNIBE
  • 14. Preliminary results: hydrology1. Annual precipitation is 3 to 4 times higher than at Montana station2. Significant contribution of glacial melt-water (until  2060)3. Tseuzier storage lake: key element for the management of the (abundant) water Water tower of the MontanAqua region! Contribution: some mio. m3/yr (cf. water consumption 10 mio m3/yr) UNIBE
  • 15. Preliminary results: water uses 2010 Agricultural water need [m3]P [cm]Temp[°C] Water need for irrigation Artificial snow1 mio m3use [m3] Water Drinking water P [mm] from March to October  Drinking water is partly used for irrigation  Irrigation: no data available  Water need was modelled (however, calculated volume is smaller than the effective water volume transported in the bisses)  No common view at the regional scale and difficulty to obtain some data Bonriposi, 2012
  • 16. Preliminary results: hydropower productionWi Su In the future: A Filling of Tseuzier lake (Potential) competition between Potential for a multi A purpose storage different users particularly in time of shortage B B Hydro power production has priority. Other water users have to pay the market price for electricity when using water from the lake Bonriposi, 2012
  • 17. Preliminary results: socio-political system- Hypothesis 1 ( past, today): The institutional and political fragmentation has not been a problem because of the almost unlimited availability of water (TRUE)- Hypothesis 2 ( future): The system is changing from supply- oriented management to demand management and from a fragmented system to an integrated management system (partly TRUE)- The Tseuzier lake, the useful storage capacity of which exceeds the present day water use by 5 times, offers as multi purpose storage an interesting opportunity for the water management in the future. Homewood, 2012
  • 18. Scenarios for the future (2050)catchments Water availability today, 2050 Emission scenario A1B - different realisations Water consumption Icogne Montana Randogne Mollens today, 2050 Water management Lens Chermignon today, 2050 Venthône Miège 3 Visions (scenarios) - expansion Veyras Sierre - optimisation - Moderate development by Group RegiEau
  • 19. Outlook Tseuzier storage lake is situated in the middle of the water tower; concession until 2037Key element to satisfy all needs:• From single to multi purpose storage • How? • Process of negotiation between different stakeholders: water users, communes, power company • Management / priorities in times of shortages Interesting case study for a quite frequent situation in the future (cf. also new lakes)

×