Alp-Water-Scarce

Water Management Strategies against Water Scarcity in the Alps

4th General MeetingCambery, 21st September 2010

Water Scarcity Warning System (WP8)

DI Christian KOPEINIGGovernment of the Province of Carinthia ,

Department of Water Management, Klagenfurt, Austria

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Aimes and Objectives

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Situation in Italien and Austrian pilot sites is very different => two different early warning systems:

- In the Italien pilotsite the focus is to reduce problems between agriculture (irrigation) and hydropower plant operators in the region of Veneto.

- In the Austrian pilotsite we are working on a system to activate timely measures to enable a proactive drinking water management for expected drought periods

Province of Carinthia

Region of Veneto

Outputs

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This solutions could be:

- restrictions of car washing, irrigation for private gardens or filling pools- activation of additional wells for emergency supply- activation of distribution networks (communal or regional)

Scenario catalogue

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Actual state of discharge and

soil moisture from HBV model

class: „very dry“

class: „dry“

Inital condition:class: „normal“

Initial condition: normalFollowing weather: normal

… dry… very dry

Initial condition: dryFollowing weather : normal

… dry

… very dry

Initial condition: very dryFollowing weather : normal

… dry

… very dry

Classification

Estimation

Scenario - diagram - example

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Period: May,June,July Area: Gurktal Spring: Typ A

0

0,2

0,4

0,6

0,8

1

1,2

01.Mai 31.Mai 01.Jul 31.Jul

Q/M

Q

normal/normal

normal/dry

normal/very dry

dry/normal

dry/dry

dry/very dry

very dry/normal

very dry/dry

very dry/very dry

Representative springs

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Clustered representative springsAustria

Model

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The HBV model (Bergström, 1976, 1992) is a rainfall-runoff model, which includes conceptual numerical descriptions of hydrological processes.

• Snow routine • Soil moisture routine • Response function • Routing routine

HOCHWASSERWARNSERVICE KÄRNTEN

Snow-water-equivalent

Amt der Kärntner Landesregierung, Abteilung 18, Wasserwirtschaft - Hydrographie

HOCHWASSERWARNSERVICE KÄRNTEN

Soil moisture

Amt der Kärntner Landesregierung, Abteilung 18, Wasserwirtschaft - Hydrographie

Time-series

Amt der Kärntner Landesregierung, Abteilung 18, Wasserwirtschaft - Hydrographie

evaporation

Soil moisture

Snow-water- equivalent

HOCHWASSERWARNSERVICE KÄRNTEN

Time series of runnoff – comparison

Amt der Kärntner Landesregierung, Abteilung 18, Wasserwirtschaft - Hydrographie

- Natural network- Artificial network - hydroelectric - aqueducts and irrigation

To Livenza River - Adriatic sea 25 m3/s

Piave River - Adriatic sea 60 m3/s

Piave river basin

High mountain regionPrealpine region

To groundwater 16 m3/s

3 big lakes - Mis 35 Mm3

- Centro Cadore 48 Mm3

- Santa Croce 86 Mm3

Example of a possible method

• What have you already prepared for the project (

Which parameters should be considered?

Affluxes Discharges Base flows Temperature Snow melt behavior

Snow Water Equivalent

Threshold value

The water scarcity should not be predicted Y/N, the probability must be indicated.

differences with the average values

HYDROLOGICAL YEAR

Cumulated afflux at 15

may

Afflux regime at 15 may

Cumulated runoff at 15

may

Base flow at 15 may

Base flow trend at 15

may

Temperature trend at 15

may SWE

Energy availabe for

snow melt up to 15 may

IndicatorPredicted

water scarcity

Real situation of

water scarcity

Indicator reliability

weights 0.5 2 0.5 1 3.5 0.5 1 1 -0.501994 -0.07 -0.04 0.33 -0.22 -0.06 0.13 -0.13 -0.08 -0.51 Y Y OK1995 -0.41 -0.05 -0.30 -0.16 0.04 -0.58 0.13 -1.58 Y Y OK1996 -0.49 -0.02 -0.41 -0.16 0.51 0.23 -0.60 0.24 0.89 N N OK1997 0.22 -0.03 0.04 -0.24 -0.40 0.14 -0.79 0.03 -2.26 Y N Wrong alarm1998 -0.11 -0.03 -0.27 -0.16 -0.14 -0.43 -0.06 -0.15 -1.32 Y Y OK1999 -0.02 -0.01 0.30 0.12 -0.10 -0.47 -0.04 0.09 -0.31 N N OK2000 -0.24 -0.01 0.17 0.12 0.34 -0.65 -0.61 0.07 0.39 N N OK2001 0.82 0.12 -1.00 -0.23 1.45 -0.03 0.96 N N OK2002 -0.08 -0.06 0.12 0.15 0.59 -0.32 0.14 0.60 N N OK2003 0.21 -0.09 0.36 -0.19 -0.27 -0.66 -0.20 -0.07 -1.62 Y Y OK2004 0.07 0.00 -0.12 0.06 -0.23 0.99 0.84 -0.02 0.53 N N OK2005 -0.16 -0.06 -0.13 -0.30 -0.37 0.20 -0.49 -0.06 -2.31 Y Y OK2006 -0.03 -0.02 0.10 0.15 -0.08 0.27 -0.13 0.02 -0.13 N Y Unsuccesful alarm2007 -0.29 0.08 -0.28 -0.10 0.29 -0.39 -0.74 -0.12 -0.26 N N OK2008 -0.23 0.01 -0.32 0.18 0.06 -0.02 0.23 -0.22 0.13 N N OK2009 0.76 0.22 0.25 0.54 0.23 -0.35 1.87 -0.08 3.90 N N OK2010 0.05 0.03 -0.02 0.37 0.23 0.60 0.08 0.10 1.74 N N OK

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Thank you for your attention!