Evaporation

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New technology to reduce water evaporation from large storages

This report describes laboratory work carried out to evaluate and further optimise the chemical and physical formulation of the proposed new ultra-thin film product. Three chemical systems were evaluated—EX1, EX2 and EX3.

  • Publication
  • Report
  • 2012
  • Product code NPSI1712
  • National Program for Sustainable Irrigation
  • Read More and Download

New tecnology to reduce evaporation

A new Waterlines report from the National Water commision on New technology to reduce evaporation from large water storages is now available.

  • News
  • National Program for Sustainable Irrigation
  • Read more
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Irrigation Channels

Predicting the optimum time to apply monolayers

Evaporation water losses from irrigation channels are an important component of total irrigation system losses and could be as much as 12% in the Goulburn Murray channel network. The effectiveness of monolayers has been widely studied in still water storages. This research project investigated the potential of using chemical monolayers on irrigation channels in order to suppress evaporation.

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Increasing the Resilience of Eastern Australia Irrigated Farm Businesses

Case Study

This case study looks at trialling retention of corn stubble as an inexpensive way to reduce soil water evaporation.

  • Publication
  • Case Study
  • 2011
  • Product code NPSI1611
  • National Program for Sustainable Irrigation
  • Read More and Download
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Farm Dam Management

Case Study

This case study reports on the outcomes of two workshops run in the Mildura district for irrigators and consultants.

  • Publication
  • Case Study
  • 2011
  • Product code NPSI1211
  • National Program for Sustainable Irrigation
  • Read More and Download
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Suspended Structures

Storage dam evaporation control

Shade structures in general are suspended above the water surface using cables.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI911
  • National Program for Sustainable Irrigation
  • Read More and Download
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Evaporation & Seepage Monitoring

Pressure sensitive transducers (PSTs) can be used to precisely measure water depth and therefore accurately determine the seepage and evaporation losses from water storages.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI711
  • National Program for Sustainable Irrigation
  • Read More and Download

Don’t let water saving potential evaporate

Evaporation accounts for the biggest water losses in the nation, which means the potential shown from recent evaporation research and development, involving on-farm and major storage trials, should continue to be explored.

  • News
  • National Program for Sustainable Irrigation
  • Read more
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Evaporation and Seepage

Moria Farming - Forest Hill

The National Centre for Engineering in Agriculture (NCEA) recently undertook seepage and evaporation measurements at water storages for a mixed horticulture farm at Forest Hill in the Lockyer Valley. This is a fact sheet about those measurements.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI1011
  • National Program for Sustainable Irrigation
  • Read More and Download

Water Storage Evaporation

A large proportion of irrigation research is understandably aimed at efficient use of water extracted from storages for food production but attention is also given to reducing losses that occur through evaporation.

We have gathered together all our evaporation research projects, reports, facts sheets and links to other relevant information below.

Projects

Channel Evaporation Mitigation

The project will develop the application of monolayers to reduce evaporation from irrigation channels.

  • Project
  • National Program for Sustainable Irrigation
  • Read more

Farm Dam Management

This proposal will develop and deliver integrated farm dam management information to allow irrigation businesses to optimise the use and returns from farm dams.

  • Project
  • National Program for Sustainable Irrigation
  • Read more

The Significance of Night Time Evaporation from Irrigation Farm Dams

Evaporation is a significant loss component from irrigation dams, and although numerous evaporation reduction methodologies exist, their adoption is hindered since they are deemed uneconomical. Any cost/benefit analyses that are done are generally based on poor evaporation estimates due to the complexities involved in evaporation prediction.
One area of uncertainty is the significance of night time evaporation. Similarly, the role of windsheltering on evaporation can be significant but is (more)…

  • Project
  • National Program for Sustainable Irrigation
  • Read more

Publications & Videos

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New technology to reduce water evaporation from large storages

This report describes laboratory work carried out to evaluate and further optimise the chemical and physical formulation of the proposed new ultra-thin film product. Three chemical systems were evaluated—EX1, EX2 and EX3.

  • Publication
  • Report
  • 2012
  • Product code NPSI1712
  • National Program for Sustainable Irrigation
  • Read More and Download
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Chemical Covers

Storage dam evaporation control

Fact sheet about chemical evaporation covers for dams.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI211
  • National Program for Sustainable Irrigation
  • Read More and Download
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Continuous Plastic Covers

Storage dam evaporation control

A fact sheet about floating plastic covers to reduce dam evaporation.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI411
  • National Program for Sustainable Irrigation
  • Read More and Download
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Economic Evaluation

Storage dam evaporation control

Fact sheet about evaluating the economics of dam evaporation.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI311
  • National Program for Sustainable Irrigation
  • Read More and Download
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Evaporation & Seepage Monitoring

Pressure sensitive transducers (PSTs) can be used to precisely measure water depth and therefore accurately determine the seepage and evaporation losses from water storages.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI711
  • National Program for Sustainable Irrigation
  • Read More and Download
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Evaporation and Seepage

Moria Farming - Forest Hill

The National Centre for Engineering in Agriculture (NCEA) recently undertook seepage and evaporation measurements at water storages for a mixed horticulture farm at Forest Hill in the Lockyer Valley. This is a fact sheet about those measurements.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI1011
  • National Program for Sustainable Irrigation
  • Read More and Download
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Farm Dam Management

Case Study

This case study reports on the outcomes of two workshops run in the Mildura district for irrigators and consultants.

  • Publication
  • Case Study
  • 2011
  • Product code NPSI1211
  • National Program for Sustainable Irrigation
  • Read More and Download
Thumbnail cover image

Increasing the Resilience of Eastern Australia Irrigated Farm Businesses

Case Study

This case study looks at trialling retention of corn stubble as an inexpensive way to reduce soil water evaporation.

  • Publication
  • Case Study
  • 2011
  • Product code NPSI1611
  • National Program for Sustainable Irrigation
  • Read More and Download
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Modular Covers

Storage dam evaporation control

A fact sheet about modular covers to reduce dam evaporation.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI511
  • National Program for Sustainable Irrigation
  • Read More and Download
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Monolayer Research

Storage dam evaporation control

A fact sheet about research into chemical monolayers to reduce dam evaporation.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI611
  • National Program for Sustainable Irrigation
  • Read More and Download
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Structural & Management Techniques

Storage dam evaporation control

A fact sheet about structural and management techniques to reduce water storage evaporation.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI811
  • National Program for Sustainable Irrigation
  • Read More and Download
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Suspended Structures

Storage dam evaporation control

Shade structures in general are suspended above the water surface using cables.

  • Publication
  • Fact Sheet
  • 2011
  • Product code NPSI911
  • National Program for Sustainable Irrigation
  • Read More and Download

New Tools for Measuring Evaporation from Farm Dams

Research Bulletin 5

This bulletin describes the results of a modelling study of evaporation from farm dams and a ‘ready reckoner’ in the form of a spreadsheet that:

  • Calculates the cost of installing an evaporation reduction system
  • Calculates how much water is saved from evaporating.
  • Publication
  • Report
  • 2006
  • Product code PK061214
  • National Program for Sustainable Irrigation
  • Read More and Download
  • Publication
  • Report
  • 2006
  • Product code ER061197
  • National Program for Sustainable Irrigation
  • Read More and Download

Irrigation Update No.8 Newsletter of the National Program for Sustainable Irrigation

Vol 8 September 2006

In this issue

  • Evaporation also happens at night
  • Northern Australia Irrigation Futures
  • Decisions, decisions - new Irrigation Insights book available soon
  • New irrigation CD Available now: latest hydro-geophysic
  • Publication
  • Newsletter or Periodical
  • 2006
  • Product code PN061211
  • National Program for Sustainable Irrigation
  • Read More and Download

The Significance of Night Time Evaporation from Irrigation Farm Dams

Summary Report

Work commissioned by NPSI and undertaken by Matthew Hipsey from the University of Western Australia shows that night time evaporation is significant.

This report details the results of the study and will assist in improving the accuracy.

  • Publication
  • Report
  • 2006
  • Product code ER061198
  • National Program for Sustainable Irrigation
  • Read More and Download

The Significance of Night Time Evaporation from Irrigation Farm Dams Across Australia

Final Report

This report documents the numerical analysis performed for the Land and Water Australia (LWA) National Program for Sustainable Irrigation project "The significance of night time evaporation from irrigation farm dams” under contract UWA45.
The objective of the present study is to further develop the numerical model DYRESM to make it applicable to irrigation farm dams and to subsequently apply it to gain (more)…

  • Publication
  • Final Report
  • 2006
  • Product code ER061199
  • National Program for Sustainable Irrigation
  • Read More and Download

Understanding Evaporation

NPSI Fact Sheet

Right now, it is very difficult to accurately measure the water losses from evaporation on farm dams but a recent scoping study funded by the National Program for Sustainable Irrigation estimated the loss is as high as 7,000 gigalitres per year from Queensland’s section of the Murray-Darling Basin alone.
Given that water extracted from our waterways for all purposes is around 20,000 gigalitres per annum in the whole of Australia, the potential savings from addressing evaporation losses (more)…

  • Publication
  • Fact Sheet
  • 2006
  • Product code PF061136
  • National Program for Sustainable Irrigation
  • Read More and Download

Controlling evaporation losses from farm dams

National Program for Sustainable Irrigation Fact sheet 2005/4

As much as 40% of water stored in a farm dam can be lost through evaporation, depending on the depth of the dam and its surface area. Dam design can significantly decrease evaporation by reducing the surface area to volume ratio (deeper, narrower dams) and planting windbreaks to provide shade and reduce wind turbulence.
Over the years, a number of commercial products have also been developed to minimise water losses, including floating plastic covers and chemical products that change the (more)…

  • Publication
  • Fact Sheet
  • 2005
  • Product code PF050873
  • National Program for Sustainable Irrigation
  • Read More and Download

Reduction of evaporation from farm dams

Scoping Study

Evaporation reduction from farm dams in Australia is regarded as one of the few areas where there are real water savings to be made. At this stage, there are a number of commercial evaporation reduction systems available that use either a hard or polymer cover.
Currently these systems are deemed to be viable (M. Durack pers. comm., 2004) for high value crops such as table grapes but are generally not financially viable for lower value crops such as sorghum or cotton. The Department of (more)…

  • Publication
  • Report
  • 2005
  • Product code ER050936
  • National Program for Sustainable Irrigation
  • Read More and Download

News

Action in the delivery system

National Program for Sustainable Irrigation partner Goulburn-Murray Water is making a major contribution to the evaluation of thin films, or monolayers, which can spread over water surfaces to reduce evaporation.

  • News
  • National Program for Sustainable Irrigation
  • Read more

Curtailing evaporation in major storages

The National Program for Sustainable Irrigation has had an active interest in evaporation as a researchable issue for more than 10 years, looking at the big picture as well as farm-based practices to reduce evaporative loss. It was a sponsor of an international workshop at the Gold Coast in 2009, for example, to address priorities and foster the exchange of knowledge.

  • News
  • National Program for Sustainable Irrigation
  • Read more

Don’t let water saving potential evaporate

Evaporation accounts for the biggest water losses in the nation, which means the potential shown from recent evaporation research and development, involving on-farm and major storage trials, should continue to be explored.

  • News
  • National Program for Sustainable Irrigation
  • Read more

New tecnology to reduce evaporation

A new Waterlines report from the National Water commision on New technology to reduce evaporation from large water storages is now available.

  • News
  • National Program for Sustainable Irrigation
  • Read more

On-property technologies reduce evaporation

Farm dam management has been a particular interest of the National Program for Sustainable Irrigation, with much of the work undertaken by Deb Atkins of Industry Investment NSW in a collaborative project as part of the former CRC for Irrigation Futures.

  • News
  • National Program for Sustainable Irrigation
  • Read more