Journal
ENVIRONMENTAL MODELLING & SOFTWARE
Volume 61, Issue -, Pages 393-409Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envsoft.2014.07.011
Keywords
Estuary; Artificial neural network; Algal blooms; Estuary management; Water quality; Autonomous monitoring
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Algae proliferate when favourable biological, chemical and physical conditions are present. Algal blooms within the Hawkesbury River, NSW, are a regular feature of seasonal cycles and develop in response to non-periodic disturbances. To improve the understanding of processes that lead to algal blooms, an autonomous buoy has been deployed (since 2002) which has generated a high resolution, temporal data set. Parameters monitored at 15 min intervals include Chlorophyll-a, temperature (water and air), salinity and photosynthetically available radiation. This data set is used to configure an Artificial Neural Network (ANN) to predict (one, three and seven days in advance) the mean, 10th and 90th percentile, daily Chlorophyll-a concentrations. The prediction accuracy of the ANNs progressively decreased from one to seven days in advance. Incorporating predictive models coupled with near real time data sourced from automated, telemetered monitoring buoys enables environmental managers to implement proactive algal bloom management strategies. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.
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