701-0535-00L  Environmental Soil Physics/Vadose Zone Hydrology

SemesterHerbstsemester 2021
DozierendeA. Carminati, P. U. Lehmann Grunder
Periodizitätjährlich wiederkehrende Veranstaltung
LehrspracheEnglisch



Lehrveranstaltungen

NummerTitelUmfangDozierende
701-0535-00 VEnvironmental Soil Physics/Vadose Zone Hydrology2 Std.
Mi16:15-18:00CHN E 46 »
A. Carminati, P. U. Lehmann Grunder
701-0535-00 UEnvironmental Soil Physics/Vadose Zone Hydrology1 Std.
Mi18:15-19:00CHN E 46 »
A. Carminati, P. U. Lehmann Grunder

Katalogdaten

KurzbeschreibungThe course provides theoretical and practical foundations for understanding and characterizing physical and transport properties of soils/ near-surface earth materials, and quantifying hydrological processes and fluxes of mass and energy at multiple scales.
LernzielStudents are able to
- characterize porous media at different scales
- parameterize structural, flow and transport properties of partially-saturated porous media
- quantify driving forces and resulting fluxes of water, solute, and heat in soils
InhaltWeek 1: Introduction, soil and vadose zone, units and dimensions, definitions and basic mass-volume relationships between the solid, liquid and gaseous phases; soil water content; soil texture; particle size distributions;

Week 2: Pore scale consideration, pore sizes, shapes and connectivity, coordination number, continuity and percolation, surface area, soil structure

Week 3: Capillarity – capillary rise, surface tension, Young-Laplace equation; Washburn equation; numerical lab

Week 4: Soil Water Potential - the energy state of soil water; total water potential and its components; properties of water (molecular, surface tension, and capillary rise); units and calculations and measurement of equilibrium soil water potential components

Week 5: Soil water characteristics - definitions and measurements; parametric models, fitting and interpretation, hysteresis; demo lab

Week 6: Saturated water flow in soils - laminar flow in tubes (Poiseuille's Law); Darcy's Law, conditions and states of flow; permeability and hydraulic conductivity, measurement and theoretical concepts (Kozeny-Carman)

Week 7: Unsaturated water flow in soils - unsaturated hydraulic conductivity models and applications; Richards equation, approximations of Richards equation for steady state; approximate solutions to infiltration (Green-Ampt, Philip); outlook on unstable and preferential flow

Week 8: Numerical solution of Richards equation – using Hydrus1D for simulation of unsaturated flow; choosing class project

Week 9: Energy balance and land atmosphere interactions - radiation and energy balance; evapotranspiration, definitions and estimation; evaporation stages and characteristic length; soil thermal properties; steady state heat flow; non-steady heat flow

Week 10: Root water uptake and transpiration

Week 11: Solute and gas transport in soils; transport mechanisms of solutes in porous media; breakthrough curves; convection-dispersion equation; solutions for pulse and step solute application; parameter estimation; salt balance.

Week 12: Summary of lectures; solution of old exam

Week 13: Written semester-end exam

Week 14: Short presentations of Hydrus class projects; discussion of written exam
LiteraturSupplemental textbook (not mandatory) -Introduction to Environmental Soil Physics, by: D. Hillel

Leistungskontrolle

Information zur Leistungskontrolle (gültig bis die Lerneinheit neu gelesen wird)
Leistungskontrolle als Semesterkurs
ECTS Kreditpunkte3 KP
PrüfendeA. Carminati, P. U. Lehmann Grunder
FormSemesterendprüfung
PrüfungsspracheEnglisch
RepetitionEs wird ein Repetitionstermin in den ersten zwei Wochen des unmittelbar nachfolgenden Semesters angeboten.
Prüfungsmodusschriftlich 105 Minuten
Hilfsmittel schriftlichKeine

Lernmaterialien

Keine öffentlichen Lernmaterialien verfügbar.
Es werden nur die öffentlichen Lernmaterialien aufgeführt.

Gruppen

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Einschränkungen

Keine zusätzlichen Belegungseinschränkungen vorhanden.

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