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CURTIN UNI WATER STRATEGY 1. THE GLOBAL CHALLENGES

CURTIN UNI WATER STRATEGY 1. THE GLOBAL CHALLENGES. 2013. What are we seeing changing ?. Regional scale Real and observed trends Long term. PERTH AIRPORT - RAINFALL. CURRENT TRENDS. Annual Average. Running Average. PERTH AIRPORT - TEMPERATURE. CURRENT TRENDS.

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CURTIN UNI WATER STRATEGY 1. THE GLOBAL CHALLENGES

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  1. CURTIN UNI WATER STRATEGY1. THE GLOBAL CHALLENGES 2013

  2. What are we seeing changing ? • Regional scale • Real and observed trends • Long term

  3. PERTH AIRPORT - RAINFALL CURRENT TRENDS Annual Average Running Average

  4. PERTH AIRPORT - TEMPERATURE CURRENT TRENDS Number of days over 35°C

  5. FUTURE TRENDS

  6. % CHANGE – MEAN ANNUAL RAINFALL 15 different climate change models 13 are predicting lower rainfall by 2030

  7. FUTURE TRENDS – PERTH AIRPORT

  8. CHANGE – MEAN ANNUAL TEMPERATURE 15 different climate change models 15 are forecasting higher mean annual temperature by 2030

  9. WEATHER FORECAST TO 2030 • HOTTER • LONGER & MORE FREQUENT HEAT WAVES • DRIER WINTERS • MORE EVAPORATION • LESS STORMWATER • LESS SUPERFICIAL GROUNDWATER

  10. HOTTER • LONGER & MORE FREQUENT HEAT WAVES IMPACTS ON THE UNIVERSITY • DRIER WINTERS • LESS STORMWATER • MORE EVAPORATION • AIR CONDITIONING LOAD • PROVISION OF SHADE • FIRE RISK • OUTDOOR WORK • TREE DEATHS • LESS SUPERFICIAL GROUNDWATER • LESS RAINFALL STORAGE • JF ‘LAKE’ DAMPLAND • SHORTER GROWING SEASON • DEEPER GROUNDWATER/QUALITY • TREE DEATHS

  11. Drought proofing Perth WATER CORP. 10 YEAR PLAN CURRENT SOURCES

  12. Gaps between groundwater yields and demands Negative values are deficit

  13. WATER CORPORATION – 10 YEAR PLAN • Access deep groundwater aquifers • Reduce the use of superficial aquifers • Clear pines off Gnangara aquifer • Replenish deep aquifer with recycled wastewater • Expand desalinisation • Increasing wastewater recycling for irrigation

  14. WATER USES IN PERTH

  15. WA GOVT POLICIES TO REDUCE WATER USE • Daytime watering ban from bores – since 2002 • Winter ban on irrigation • Minimum water use standards • WEMP for > 20 Ml users • Increase in scheme water costs • Metering of non-residential groundwater bores • Licence for non-residential groundwater abstraction

  16. INFLUENCES ON WA WATER MARKETS

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