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This exercise demonstrates the role of groundwater in Earth's surface processes and natural hazards through a simple sensitivity analysis using Excel and a case study of a landslide in glacial sediments. In the first part of the exercise, students use a spreadsheet to model the infinite slope equation to determine which variables are sensitive to change. In this part of the exercise students discover the relationship and importance between hydrogeology and Earth's surface processes. In the second part of the exercise students use a case study, of a landslide that occurred in glacial sediments, to calculate the lag time between precipitation events and slope failure. This exercise highlights the relationship between groundwater and natural hazards. Finally, students combine their knowledge of both exercises and use the infinite slope equation to predict the percent of ground saturation for the landslide case study.
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