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Input Selection and Optimisation for Monthly Rainfall Forecasting

Following are audio slides giving some information on a new paper by John Abbot and Jennifer Marohasy about medium term rainfall forecasting in Australia.

The full paper can be downloaded here: http://authors.elsevier.com/sd/article/S0169809513003141

The abstract reads:

There have been many theoretical studies of the nature of concurrent relationships between climate indices and rainfall for Queensland, but relatively few of these studies have rigorously tested the lagged relationships (the relationships important for forecasting), particularly within a forecast model. Through the use of artificial neural networks (ANNs) we evaluate the utility of climate indices in terms of their ability to forecast rainfall as a continuous variable.
Results using ANNs highlight the value of the Inter-decadal Pacific Oscillation, an index never used in the official seasonal forecasts for Queensland that, until recently, were based on statistical models.

Forecasts using the ANN for sites in 3 geographically distinct regions within Queensland are shown to be superior, with lower Root Mean Square Errors (RMSE), Mean Absolute Error (MAE) and Correlation Coefficients (r) compared to forecasts from the Predictive Ocean Atmosphere Model for Australia (POAMA), which is the General Circulation Model currently used to produce the official seasonal rainfall forecasts.

Cite this paper as:

Abbot J. & Marohasy J. Input Selection and Optimisation for Monthly Rainfall Forecasting in Queensland, Australia, using Artificial Neural Networks, Atmospheric Research, 2013, 10.1016/j.atmosres.2013.11.002.

For more information email jennifermarohasy at gmail.com or phone her on mobile 041 887 32 22 (international 61 418873222).

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Jennifer Marohasy Jennifer Marohasy BSc PhD is a critical thinker with expertise in the scientific method. Read more

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To get in touch with Jennifer call 0418873222 or international call +61418873222.

Email: J.Marohasy@climatelab.com.au

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