# Summary: Advanced Hydrological Systems Analysis

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## Read the summary and the most important questions on Advanced Hydrological Systems Analysis

• ### 1 Week 1

This is a preview. There are 2 more flashcards available for chapter 1

• #### Modelling - what is the right order?

1. Perceptual mode: deciding on the process
2. Conceptual model: deciding on the eqs
3. Procedural model: get code running on a computer
4. Calibration/SA: identify parameters, estimate uncertainty
5. Evaluation: compare output with observations

Application: scenario analysis
• #### What are the applied concepts in the unsaturated zone?

• Richards equation: assumes only vertical flow (t and z)
• Use soil properties
• Simulate root water uptake, capillary rise
• Set saturated GW at fixed depth (BC in SWAP)
• Numerics: dz, dt, FV
• #### What are the applied concepts in the open water?

• Linearised St-Venant const. Drain
• 1D model
• UPDATE
• #### What are the scales of (un)saturated zone and open water?

Unsaturated zone:
Saturated zone:
Open water;
• #### What are two main issues?

• How to couple system scales?
• How to come up with a good choice of parameters (bc there are many!), after choosing the master and slaves?
• ### 1.1 Introduction

This is a preview. There are 10 more flashcards available for chapter 1.1

• #### What are the applied concepts in the saturated zone (3):

• assume horizontal flow in aquifers (not in MODFLOW)
• vertical flow in aquitards
• recharge = net rainfall (not accounting for storage in unsaturated zone)
• #### What are the equations and numerics used in the saturated zone (conceptual model)?

Darcy & Dupuit
x, y, layers

Numerics: dx, dy, triangles, dt, FE
• #### What are the equations in the UNsaturated zone (conceptual model)?

Only in
Richards
bc Hsat
Numerics: dz, dt, FV
• #### What are the applied concepts in open water (4)?

• Cross-section averaged properties
• Only long waves
• Constant drainage/infiltration
• (pseudo-)stationary flow
• #### What are the equations in the openw ater (conceptual model)?

Linearised
St-Venant
Const drain

Numerics: L1-LN, dt, FD