Development of a Gis-based Tool for Evaluating and Predicting Coastal Water Quality Issues: the Pearl River Estuary
نویسنده
چکیده
In this study, a GIS-based tool has been developed to evaluate and predict coastal water quality issues for the Pearl River Estuary (PRE). The developed system consists of three key components. The first component is a database of hydrodynamic and water quality data collected from various public domains. This database is linked with the GIS for efficient retrieval, display, and analysis of historic hydrodynamic and water quality conditions. The second component is the integration of the GIS with a hydrodynamic-water quality numerical model. The system is customized to handle the model pre-processing and post-processing requirements through the GIS interface. Finally, the third component is an Environmental Impact Assessment (EIA) tool. The EIA module is designed to examine water quality conditions in spatial context and more specifically, to identify the region subjected to the most severe water quality impact. The module combines spatial layers of various water quality parameters, whereas created from field data or generated from model results, into a single spatial layer of water quality index using the GIS Map Algebra technique.
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Reply to general comments: We acknowledge that this reviewer’s comments are important and thoughtful. We have done makeup experiments to quantify the abundances of MG I (AOA) and total DNA from the same filter samples (Table 1 and Fig. 5). The qPCR date exhibited that MG II was statistically higher (duplicate experiments) than MG I in the mixing water and seawater, which suggests that MG II pre...
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