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A snapshot of the summary  Advanced Hydrological Systems Analysis

1 Week 1

Modelling  what is the right order?
 Perceptual mode: deciding on the process
 Conceptual model: deciding on the eqs
 Procedural model: get code running on a computer
 Calibration/SA: identify parameters, estimate uncertainty
 Evaluation: compare output with observations
Application: scenario analysis  Perceptual mode: deciding on the process

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 StVenant 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?
 How to couple system scales?

1.1 Introduction

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
bcHsat
Numerics: dz, dt, FV 
What are the applied concepts in open water (4)?
 Crosssection averaged properties
 Only long waves
 Constant drainage/infiltration
 (pseudo)stationary flow
 Crosssection averaged properties

What are the equations in the openw ater (conceptual model)?
Linearised
StVenant
Const drain
Numerics: L1LN, dt, FD
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