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Catalogue: GRDC Updates
With inputs of commodity prices and growing costs, he compares a gross margins for wheat, durum, barley, canola, chickpea and faba beans that have been weighted according to the latest seasonal forecasts... 4. Tracking the season pages presents observations for the month, comparisons of accumulated rainfall, decision tool for nitrogen topdressing, a calculator to compare the outcome when salvaging crops for hay, silage or grazing and a top dressing decision tool... The CropMate tool is an example of how innovative research can be used to support grain grower decision making by incorporating research data, particularly around fertiliser use, variety performance, water use efficiency and sowing time, agronomic knowledge and climate information into the decision support tool...
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Catalogue: GRDC 2014 Research Summaries
The assessment will involve comparing past POAMA forecasts with the historical record and improving our understanding of how the frequency of these events changes with large scale drivers of atmosphere and ocean circulation such as ENSO, the IOD, blocking, and SAM. We will work with farmers, their advisers, and extension providers to incorporate forecasts of the likelihood of frost and heat events into their risk management... We will assess the utility of forecast information at seasonal time scales and outline strategies to manage temperature extremes... The tests would also be carried out in the seasonal forecast model, POAMA. We would assess if, when, and where (across the grain regions), POAMA has skill in forecasting changed likelihoods of cold and heat extremes on seasonal time scales of relevance to the sowing decision...
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Catalogue: GRDC Factsheets
Climate and weather forecasting continue to improve as the Bureau of Meteorology (BoM) develops and refines new technology and modelling... The Southern Oscillation Index (SOI) is a measure calculated from sea level pressure differences between Tahiti and Darwin, and indicates El Ni o or La Ni a intensity... Planned upgrades will soon offer improvement in several areas...
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Catalogue: GRDC Factsheets
Climate and weather forecasting continue to improve as the Bureau of Meteorology (BoM) develops and refines new technology and modelling... The Southern Oscillation Index (SOI) is a measure calculated from sea level pressure differences between Tahiti and Darwin, and indicates El Ni o or La Ni a intensity... Planned upgrades will soon offer improvement in several areas...
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Catalogue: GRDC Factsheets
Climate and weather forecasting continue to improve as the Bureau of Meteorology (BoM) develops and refines new technology and modelling... The Southern Oscillation Index (SOI) is a measure calculated from sea level pressure differences between Tahiti and Darwin, and indicates El Ni o or La Ni a intensity... Planned upgrades will soon offer improvement in several areas...
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Catalogue: GRDC Final Reports
The project has investigated the use of the Bureau of Meteorology's (BOM) dynamical seasonal forecast system, the Predictive Ocean-Atmosphere Model for Australia (POAMA) for providing multi-week forecasts, to fill the gap in prediction capability between weather and seasonal timescales... POAMA shows promising skill in forecasting multi-week rainfall and temperature over Australia, and scientists now have an improved understanding of large-scale climate drivers that affect multi-week forecast skill... The corresponding accuracy in the second fortnight of the forecast is 63%, 62% and 60%...
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Catalogue: GRDC Factsheets
Climate and weather forecasting continue to improve as the Bureau of Meteorology (BoM) develops and refines new technology and modelling... The Southern Oscillation Index (SOI) is a measure calculated from sea level pressure differences between Tahiti and Darwin, and indicates El Ni o or La Ni a intensity... Planned upgrades will soon offer improvement in several areas...
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Catalogue: GRDC Final Reports
The forecast is providing a real hedge against climate change if the number of good years declines... The break-even time for using a POAMA forecast was calculated... The value of having a frost forecast for wheat in south-west WA was investigated at three locations with rainfall ranging from medium to high...
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Catalogue: Ground Cover
Garren Knell, a consultant from Western Australia-based ConsultAg who works with Mr Baker, says that across the state the frost caused losses of up to $105 million in potential net farm income... Although the thought of frost might be 'back of mind' given recent heatwaves, Mr Knell says it is important that a risk-management-based approach is taken early in the season... The guide, Managing Frost Risk - A Guide for Southern Grains , draws on the experiences of growers, researchers and advisers and aims to help growers develop a better understanding of how frost damages cereals, frost-risk exposure, economic options for sowing time based on risk exposure, agronomic strategies to minimise frost risk, how to make early assessments of frost-damaged crops, implementing management options for those crops, and finding support in the aftermath of a serious frost...
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Catalogue: GRDC Updates (West)
Forecasts made at this time of year have varying degrees of skill and we advise users to consult the seasonal forecasts as they are updated monthly and the skill improves closer to the season... Verification of the 2011 SSF forecasts In terms of the 2011 seasonal forecasts the SSF gave a drier outlook to that which generally eventuated early in the season, but successfully forecast a wetter outlook for spring which assisted farmers with fertiliser decisions mid-year... AIMS The aim of this paper is to review the main climate indicators in 2011, and what is shaping in 2012...
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