All hydrogeological projects require good quality information based on well planned and executed field measurements. This course describes the techniques that are required to obtain good quality field data and the hydrogeological science behind them. It covers the instruments required for all types of field measurements and how to use them. The course also explains the theory behind the measurements and provides practical hints on how to carry them out and to evaluate the data. Case history examples are included that illustrate the field techniques and how the field data can be used.
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Objetivos
- Understand hydrogeological terms. - How to plan a field study. - How to determine groundwater flow directions and quantities. - How to execute groundwater quality studies and interpret the data. - How to carry out pumping tests and interpret the data. - How to investigate unusual groundwater situations. - How to create a conceptual model.
A quién va dirigido
Graduate geologists, environmentalists and civil engineers who wish to obtain a good understanding of hydrogeological fieldwork. The course will also be useful for undergraduates studying these topics who wish to gain practical knowledge of hydrogeological field techniques.
Temario completo de este curso
1. Introduction to hydrogeology and groundwater levels
– Hydrological cycle, identify the aquifer units and then the groundwater levels, estimating using maps, data from observation boreholes and abstraction boreholes, using field instruments, historic records, initial work on desk study.
2. Monitoring other parts of the water cycle
– Rainfall, evaporation, springs, stream flow. How to handle the data.
3. Pumping tests
– How to plan and carry them out.
– Instruments to use.
– Examples for analysis.
4. Groundwater chemistry
– What to analyse for in different circumstances.
– How to plan a sampling programme.
– How to take samples including the equipment.
– How to interpret the data using Schoeller and Piper methods.
5. Conceptual model
– The steps to take in developing a conceptual model using the techniques covered in other sections.
6. Specialist techniques
– How to use the different types of data to solve specific groundwater problems.
– Examples include borehole prognoses, wells in thin aquifers, contaminated land studies, and rising water tables.