Hydro - What is the role of hydrogeological science in battling the ‘global water crisis’?
5 important questions on Hydro - What is the role of hydrogeological science in battling the ‘global water crisis’?
What are 5 natural/management/quality issues that are consequences of GW depletion
- Agriculture increasingly needs irrigation waters as a result of dropping water tables
- Land-subsidence in unconsolidated aquifers due to reducing water pressure
- Increasing energy costs to lift water from deep aquifers
- Quality of pumped water deteriorates as deeper water is often saline
- Effluent water contributes to sea-level rise
Which space invention is used to measure GW depletion on the earth and how does it work?
Gravity Recovery and Climate
Experiment
GRACE measures gravity field
around the globe, which is
impacted by groundwater
mass
Make an overview of in- and outflow of aquifers that form part of a sustainable management scheme and name social, environmental and economical benefits.
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Describe what the cone of depression around an abstraction borehole is and how it comes to be. Take the word drawdown, water table and discharge into account.
Explain the workings of a sustainable water yield concept while mentioning the Qabstraction and Qrecharge flows.
When QA exceeds the total groundwater recharge to the system
minus the environmental demands, then the groundwater source
will become depleted.
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