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The Estuary Guide
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Overview of the Estuary Guide
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Estuary management
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> Guide : Summary
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Strategic management and planning within estuaries seeks to identify a framework that enshrines sustainability. Any management initiative must address the issues of
long-term change;
physical, chemical and biological interactions; and
system response (including socio-economic interactions).
Achieving such an approach will need to take advantage of studies and research at a number of different spatial and temporal scales. These include:
1) global climate change initiatives,
2) catchment and estuary wide studies
3) work on specific features (banks, mudflats, etc).
They necessarily consider changes over timescales of seconds to thousands of years. Realistically, for strategic planning and management, the goal is to be able to predict, with a reasonable degree of confidence over a 20 to 50 year time horizon.
It is not yet possible and, indeed, may never be possible to make absolute predictions. Rather, it is necessary to identify probable/possible outcomes, as a basis for guiding management actions. This, in itself, requires managers and planners to move away from prescriptive interventionist approaches, towards more adaptive ones.
This guide seeks to provide an overview of how to identify morphological change within estuaries, as a basis for sound management. The layout is as follows:
Within this guide, the reader will find an introductory chapter, which looks at the issues of the guide, and the purpose and layout of the guide.
Secondly, there is a chapter on estuary management; the need for strategic management within eateries, sustainable development, legislation and the management framework. Thirdly, there is a chapter on estuary setting. This encompasses the classification of estuaries from fjords to spit enclosed; estuarine processes; estuary characterisation and the form and function of an estuary.
The next chapter looks at the study approach – how a study is undertaken in terms of scope and framework. Within this section, there is a discussion about issues of scale, a summary of the study process; a review of the importance of conceptual models; and an overview of the synthesis and understanding of the study approach.
Once a study has been outlined, the reader is guided to the study methods; this outlines the ways in which estuarine studies can be undertaken. Within the study methods, there is a review of analysis and modelling, the techniques that are available; model application and errors and uncertainty. A significant amount of emphasis is placed on errors and uncertainty in data collation, modelling setups and statistical analysis.
The presentation of findings chapter occurs subsequent to the study methods chapter. Here, there is a review of how to present a synthesis report, summaries of individual studies, space-time summaries and an example of a sediment budget.
The last guidance section is the chapter about assessing impacts. Within this chapter, there is a section on the background to assessing environmental impacts, the EIA framework, and a summary of the assessment framework.
Lastly, the reader will also find supporting documents, a glossary and a reference list.
The topic is a huge one and the guide only is intended to provide an introduction to some of the key issues. Extensive references have been included as well as a glossary of terms, for those who are less familiar with the subject. In addition, there is a number of supporting documents that provide further guidance, more detailed information on specific issues, or explore some of the theoretical background to certain topics.
Methods and models are evolving rapidly at the moment. In particular there is a lot of effort going in to research of complex systems, non-linear interactions and the prediction of change over relatively long time scales (10-100 years). This means that the guide presents a summary of current thinking. It is hoped that as techniques evolve the guide will be updated to reflect new developments.
Last Modified on: 19 June 2011
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Printed from the Estuary Guide on 17/07/2019 21:45:58