Assessing and Managing Groundwater in Different Environments by Jude Cobbing, Shafick Adams, Ingrid Dennis, Kornelius

By Jude Cobbing, Shafick Adams, Ingrid Dennis, Kornelius Riemann

This choice of papers is a picture of contemporary hydrogeology during which hugely technical equipment and techniques sit down side-by-side with overlapping criminal, social, organisational, institutional and governance issues. Groundwater is crucial to many human and environmental platforms. certainly, there seems to be a starting to be realisation that probably the most urgent actual difficulties within the box of hydrogeology - Read more...

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Extra resources for Assessing and Managing Groundwater in Different Environments

Example text

The decision-making process is based on the availability of information. Data are gathered to provide information which when analysed becomes knowledge that is used to make management decisions. To determine the effect of data and information on the decision-making process, data from a field site were evaluated. The depth-to-groundwater level was used as the required variable on which information was required. The change in the average depth-to-groundwater level was evaluated against the increase in the number of data points.

When data are analysed, information is generated which upon interpretation increases the level of knowledge and understanding that is used to base management decisions on. To determine the effect of data and information on the decision-making process, data from a field site were evaluated. The depth-to-groundwater level was used as the required variable on which information was required. The evaluation was done for all 715 data points collected for the Middelburg Site aquifers. The analysis showed that the decision-making process has a logarithmic nature which means that less and less information becomes available with more data.

9). The identification 4 Perfect information is defined as an illustrative reference of when information is 100% accurate. 8). 5 The same as the principle of an ideal gas is used in physics to characterize gases (Beuche 1986). 34 Assessing and managing groundwater in different environments Cumulative information index of a straight line on a semi-log plot of the first derivative could serve to identify when data become sufficient information. 10). 9). 7), the question arises, when are data sufficient, near-optimal or optimal?

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