Monitoring programmes: The fundamental component of estuaries management. how to design one?

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Abstract

This article focuses on the design of a conceptual framework to design and assess environmental estuarine monitoring programmes, including the networks, to detect quality status changes in coastal areas within environmental management programmes. Monitoring is a fundamental component in any management system, and in particular in sensitive areas under strong human pressures, like estuaries. These pressures will be reflected in impacts on the ecosystem and also on responses from it. A monitoring program including the network and the indicators measured, should be designed to be able to identify the i) pressures, ii) the state and effects, and iii) the responses of human action in the estuary according to casualty chains, also the monitoring performance should be measured to assess the effectiveness of the monitoring program itself. Answers to these needs are studied in this article, namely in what concerns the selection and location of the monitoring stations. To evaluate the "best" monitoring design one should first clearly identify the objectives of the network and which indicators (in the sense of important variables that reflect environmental attributes) are most appropriate for the particular situation. In this work two methods for monitoring network design will be evaluated, namely i) variance-reduction based, and ii) space-filling. These two are examples of a statistically-based method, and of a random-allocation-based method. The most appropriate objective functions are used to reflect the objectives of the monitoring. In all cases the objective function models are solved with the simulated annealing meta-heuristic algorithm, implemented by the team to solve monitoring optimisation problems. Due to the amount and quality of the information available, the Sado estuary is used as a case-study to demonstrate the results of the methods and helping in the comparative analysis.

Original languageEnglish
Title of host publicationCoastal Engineering VII - Modelling, Measurements, Engineering and Management of Seas and Coastal Regions
PublisherWITPress
Pages37-53
Number of pages17
Volume78
ISBN (Print)9781845640095
Publication statusPublished - 2005
Event7th International Conference on Modelling, Measurements, Engineering and Management of Seas and Coastal Regions, Coastal Engineering 2005 - Algarve, Portugal
Duration: 13 Apr 200515 Apr 2005

Conference

Conference7th International Conference on Modelling, Measurements, Engineering and Management of Seas and Coastal Regions, Coastal Engineering 2005
CountryPortugal
CityAlgarve
Period13/04/0515/04/05

Keywords

  • Coastal management
  • Environmental indicators
  • Monitoring optimisation
  • Simulated annealin

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  • Cite this

    Nunes, L. M., Caeiro, S., Ramos, T. A. B., Cunha, M. C., Ribeiro, L., & Costa, M. H. (2005). Monitoring programmes: The fundamental component of estuaries management. how to design one? In Coastal Engineering VII - Modelling, Measurements, Engineering and Management of Seas and Coastal Regions (Vol. 78, pp. 37-53). WITPress.