questions for hydrology exam

possible questions at hydrology exam

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Christian Voegeli

Kartei Details

Zusammenfassung	This flashcard set is designed for university-level students studying hydrology, focusing on key concepts like runoff mechanisms, rainfall disaggregation, and stochastic models. It covers methods for filling in missing data, the differences between Horton and Dune infiltration mechanisms, and the use of various models and generators. Students preparing for hydrology exams will find this set particularly useful for understanding complex hydrological processes and applying theoretical knowledge to practical scenarios.
Karten	17
Lernende	2
Sprache	English
Kategorie	Naturkunde
Stufe	Universität
Erstellt / Aktualisiert	08.01.2014 / 24.01.2020
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advantages of stochastical models compared to other approaches considering filling in missing observations?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

robust, uncertainities....

what methods do we know for filling in missing data?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

classical: station average, normal-ratio, inverse distance

regression

time series analysis

what can stochastic models be used for?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

filling in missing data

rainfall disaggregation

name stochastic models for rainfall disaggregation

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

scaling-stochastic model -> cascade model (micro-/canoncial, un-/bounded)

which saturation process is best to describe a small saturated area in a catchment?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

dune, saturation excess

what is the difference between horton and dune infiltratin mechanisms?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

horton: runoff, even when the soil is not saturated, infitration excess runoff

dune: saturation from below, saturation excess runoff

what parameters are needed for horton and dune runoff mechanisms?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

horton: P, fc

dune: S_cap -> is a function of Z_soil, θ_satand θ_r

what is rainfall disaggregation?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

to do

when is rainfall disaggregation useful?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

to do

what methods for rainfall disaggregation are known?

Tastatur-Befehle:

= drehen,

= vor-/rückwärts,

= scrollen

deterministic: constant model, ormsbee model

stochastic methods: randomisation of ormsbee

scaling methods: cascade model

differences between micro- and canoncial model?

to do

what is the cascade generator w?

to do

what is the probability distribution of the cascade generator W?

to do

what is the aerodynamical resistance?

to do: eq, terms...

where is the aerodynamical resistant used?

to calculate H=(rho*Cp*delta_T)/ra

E = (rho*delta_q)/rav ; ra = rav

tau = rho * u / ram; ram almost equal to ra

also used in the penman eq.

how can the vegetation resistance be included?

rc = rs/LAI = stomata res / leaf area index

in series with ra -> replace ra with ra + rc

which methods to fill in missing data?

to do....

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