Investigating techniques to reduce evaporation from small reservoirs in Australia

F. Helfer; C. Lemckert; H. Zhang

Investigating techniques to reduce evaporation from small reservoirs in Australia

F. Helfer, C. Lemckert, H. Zhang

Research output: A Conference proceeding or a Chapter in Book › Conference contribution

Abstract

Climate change has been posing a great pressure on water resources, particularly in Australia. In South-East Queensland (SEQ), the annual evaporation is expected to rise by about 16 per cent in the next 60 years due to increasing greenhouse gas emissions. As the region relies on a large volume of stored water, the minimisation of evaporation is a key factor in guaranteeing availability of water in the future. This paper analyses the efficiency of some existing techniques in reducing evaporation from small dams within SEQ. The use of suspended covers, destratification systems and windbreaks was investigated using modelling. Of these techniques, suspended covers showed the greatest potential for reducing evaporation (in the order of 88 per cent). The efficiency of windbreaks was around 27 per cent, while the use of destratification system did not change evaporation rates. These results are encouraging, and further research is warranted to determine the cost-effectiveness and environmental impacts of the use of suspended covers and windbreaks to reduce evaporation from small dams.

Original language	English
Title of host publication	34th IAHR Congress 2011 - Balance and Uncertainty
Subtitle of host publication	Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
Publisher	International Association for Hydro-Environment Engineering and Research (IAHR)
Pages	1747-1754
Number of pages	8
ISBN (Electronic)	9780858258686
Publication status	Published - 1 Jan 2011
Externally published	Yes
Event	34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering - Brisbane, Australia Duration: 26 Jun 2011 → 1 Jul 2011

Conference

Conference	34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
Country/Territory	Australia
City	Brisbane
Period	26/06/11 → 1/07/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Helfer, F., Lemckert, C., & Zhang, H. (2011). Investigating techniques to reduce evaporation from small reservoirs in Australia. In 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering (pp. 1747-1754). International Association for Hydro-Environment Engineering and Research (IAHR). http://www.proceedings.com/14307.html

Helfer, F. ; Lemckert, C. ; Zhang, H. / Investigating techniques to reduce evaporation from small reservoirs in Australia. 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR), 2011. pp. 1747-1754

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title = "Investigating techniques to reduce evaporation from small reservoirs in Australia",

abstract = "Climate change has been posing a great pressure on water resources, particularly in Australia. In South-East Queensland (SEQ), the annual evaporation is expected to rise by about 16 per cent in the next 60 years due to increasing greenhouse gas emissions. As the region relies on a large volume of stored water, the minimisation of evaporation is a key factor in guaranteeing availability of water in the future. This paper analyses the efficiency of some existing techniques in reducing evaporation from small dams within SEQ. The use of suspended covers, destratification systems and windbreaks was investigated using modelling. Of these techniques, suspended covers showed the greatest potential for reducing evaporation (in the order of 88 per cent). The efficiency of windbreaks was around 27 per cent, while the use of destratification system did not change evaporation rates. These results are encouraging, and further research is warranted to determine the cost-effectiveness and environmental impacts of the use of suspended covers and windbreaks to reduce evaporation from small dams.",

keywords = "Destratification, DYRESM, Evaporation, Reservoir, Suspended covers, Windbreaks",

author = "F. Helfer and C. Lemckert and H. Zhang",

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booktitle = "34th IAHR Congress 2011 - Balance and Uncertainty",

publisher = "International Association for Hydro-Environment Engineering and Research (IAHR)",

note = "34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering ; Conference date: 26-06-2011 Through 01-07-2011",

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Helfer, F, Lemckert, C & Zhang, H 2011, Investigating techniques to reduce evaporation from small reservoirs in Australia. in 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR), pp. 1747-1754, 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering, Brisbane, Australia, 26/06/11. <http://www.proceedings.com/14307.html>

Investigating techniques to reduce evaporation from small reservoirs in Australia. / Helfer, F.; Lemckert, C.; Zhang, H.
34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR), 2011. p. 1747-1754.

Research output: A Conference proceeding or a Chapter in Book › Conference contribution

TY - GEN

T1 - Investigating techniques to reduce evaporation from small reservoirs in Australia

AU - Helfer, F.

AU - Lemckert, C.

AU - Zhang, H.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Climate change has been posing a great pressure on water resources, particularly in Australia. In South-East Queensland (SEQ), the annual evaporation is expected to rise by about 16 per cent in the next 60 years due to increasing greenhouse gas emissions. As the region relies on a large volume of stored water, the minimisation of evaporation is a key factor in guaranteeing availability of water in the future. This paper analyses the efficiency of some existing techniques in reducing evaporation from small dams within SEQ. The use of suspended covers, destratification systems and windbreaks was investigated using modelling. Of these techniques, suspended covers showed the greatest potential for reducing evaporation (in the order of 88 per cent). The efficiency of windbreaks was around 27 per cent, while the use of destratification system did not change evaporation rates. These results are encouraging, and further research is warranted to determine the cost-effectiveness and environmental impacts of the use of suspended covers and windbreaks to reduce evaporation from small dams.

AB - Climate change has been posing a great pressure on water resources, particularly in Australia. In South-East Queensland (SEQ), the annual evaporation is expected to rise by about 16 per cent in the next 60 years due to increasing greenhouse gas emissions. As the region relies on a large volume of stored water, the minimisation of evaporation is a key factor in guaranteeing availability of water in the future. This paper analyses the efficiency of some existing techniques in reducing evaporation from small dams within SEQ. The use of suspended covers, destratification systems and windbreaks was investigated using modelling. Of these techniques, suspended covers showed the greatest potential for reducing evaporation (in the order of 88 per cent). The efficiency of windbreaks was around 27 per cent, while the use of destratification system did not change evaporation rates. These results are encouraging, and further research is warranted to determine the cost-effectiveness and environmental impacts of the use of suspended covers and windbreaks to reduce evaporation from small dams.

KW - Destratification

KW - DYRESM

KW - Evaporation

KW - Reservoir

KW - Suspended covers

KW - Windbreaks

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EP - 1754

BT - 34th IAHR Congress 2011 - Balance and Uncertainty

PB - International Association for Hydro-Environment Engineering and Research (IAHR)

T2 - 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering

Y2 - 26 June 2011 through 1 July 2011

ER -

Helfer F, Lemckert C, Zhang H. Investigating techniques to reduce evaporation from small reservoirs in Australia. In 34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering. International Association for Hydro-Environment Engineering and Research (IAHR). 2011. p. 1747-1754

Investigating techniques to reduce evaporation from small reservoirs in Australia

Abstract

Conference

UN SDGs

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