Module 10: Scenario Assessment

Objectives

To use the coupled GLM-AED model of a tropical reservoir to build up a water quality model one module at a time, and to explore the feedbacks between dissolved oxygen, nutrients, phytoplankton and zooplankton under different nutrient load scenarios.

Before you start

• Complete Module 9 (GLM Workbook Exercises 1–6), as this module builds on the stratification and water quality concepts covered there

Module Resources

This week, you’ll be working through the Tropical Reservoir Water Quality Workbook (GLM-AED), using the TropicalReservoir case study from the GLM case studies folder.

The workbook opens as a separate page in a new tab. Use the menu on its left-hand side to move between the cases.

Exercises

Work through the workbook, setting up a new folder for each case:

• Case 0 – Base: Dissolved oxygen
• Case 1 – Add nutrients, organic matter and silica
• Case 2 – Add diatoms
• Case 3 – Three phyto groups
• Case 4 – Nutrient load scenarios
• Case 5 – Add zooplankton (optional)

Submission

Submit one document that contains:

• Answers to all questions in Cases 0–4, numbered by case and question (for example, Case 2 – Q1)
• The seven plots listed in the workbook’s Final submission section

Case 5 (zooplankton) is optional and does not need to be submitted.

These are to be uploaded as per the formatting specified in the Style Guide. Marks will be deducted for incorrect formatting.