Integrated satellite data fusion and mining for monitoring lake water quality status of the Albufera de Valencia in Spain

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@Article{Dona:2015:JEM,

• author = "Carolina Dona and Ni-Bin Chang and Vicente Caselles and Juan M. Sanchez and Antonio Camacho and Jesus Delegido and Benjamin W. Vannah",
• title = "Integrated satellite data fusion and mining for monitoring lake water quality status of the {Albufera de Valencia in Spain}",
• journal = "Journal of Environmental Management",
• volume = "151",
• pages = "416--426",
• year = "2015",
• keywords = "genetic algorithms, genetic programming, Water quality, Lake management, Remote sensing, Data fusion, Data mining, Machine learning",
• ISSN = "0301-4797",
• DOI = "doi:10.1016/j.jenvman.2014.12.003",
• URL = "http://www.sciencedirect.com/science/article/pii/S0301479714005805",
• abstract = "Lake eutrophication is a critical issue in the interplay of water supply, environmental management, and ecosystem conservation. Integrated sensing, monitoring, and modelling for a holistic lake water quality assessment with respect to multiple constituents is in acute need. The aim of this paper is to develop an integrated algorithm for data fusion and mining of satellite remote sensing images to generate daily estimates of some water quality parameters of interest, such as chlorophyll a concentrations and water transparency, to be applied for the assessment of the hypertrophic Albufera de Valencia. The Albufera de Valencia is the largest freshwater lake in Spain, which can often present values of chlorophyll a concentration over 200 mg m-3 and values of transparency (Secchi Disk, SD) as low as 20 cm. Remote sensing data from Moderate Resolution Imaging Spectroradiometer (MODIS) and Landsat Thematic Mapper (TM) and Enhance Thematic Mapper (ETM+) images were fused to carry out an integrative near-real time water quality assessment on a daily basis. Landsat images are useful to study the spatial variability of the water quality parameters, due to its spatial resolution of 30 m, in comparison to the low spatial resolution (250/500 m) of MODIS. While Landsat offers a high spatial resolution, the low temporal resolution of 16 days is a significant drawback to achieve a near real-time monitoring system. This gap may be bridged by using MODIS images that have a high temporal resolution of 1 day, in spite of its low spatial resolution. Synthetic Landsat images were fused for dates with no Landsat overpass over the study area. Finally, with a suite of ground truth data, a few genetic programming (GP) models were derived to estimate the water quality using the fused surface reflectance data as inputs. The GP model for chlorophyll a estimation yielded a R2 of 0.94, with a Root Mean Square Error (RMSE) = 8 mg m-3, and the GP model for water transparency estimation using Secchi disk showed a R2 of 0.89, with an RMSE = 4 cm. With this effort, the spatiotemporal variations of water transparency and chlorophyll a concentrations may be assessed simultaneously on a daily basis throughout the lake for environmental management.",

}

Genetic Programming entries for Carolina Dona Monzo Ni-Bin Chang Vicente Caselles Miralles Juan Manuel Sanchez Toma Antonio Camacho Gonzalez Jesus Delegido Benjamin W Vannah

Citations