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

SemesterAutumn Semester 2021
LecturersA. Carminati, P. U. Lehmann Grunder
Periodicityyearly recurring course
Language of instructionEnglish



Courses

NumberTitleHoursLecturers
701-0535-00 VEnvironmental Soil Physics/Vadose Zone Hydrology2 hrs
Wed16:15-18:00CHN E 46 »
A. Carminati, P. U. Lehmann Grunder
701-0535-00 UEnvironmental Soil Physics/Vadose Zone Hydrology1 hrs
Wed18:15-19:00CHN E 46 »
A. Carminati, P. U. Lehmann Grunder

Catalogue data

AbstractThe 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.
ObjectiveStudents 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
ContentWeek 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
LiteratureSupplemental textbook (not mandatory) -Introduction to Environmental Soil Physics, by: D. Hillel

Performance assessment

Performance assessment information (valid until the course unit is held again)
Performance assessment as a semester course
ECTS credits3 credits
ExaminersA. Carminati, P. U. Lehmann Grunder
Typeend-of-semester examination
Language of examinationEnglish
RepetitionA repetition date will be offered in the first two weeks of the semester immediately consecutive.
Mode of examinationwritten 105 minutes
Written aidsNone

Learning materials

No public learning materials available.
Only public learning materials are listed.

Groups

No information on groups available.

Restrictions

There are no additional restrictions for the registration.

Offered in

ProgrammeSectionType
Agricultural Sciences MasterFunctioning of Soil SystemsWInformation
Atmospheric and Climate Science MasterHydrology and Water CycleWInformation
Earth and Climate Sciences BachelorElectivesWInformation
MAS in Sustainable Water ResourcesElective CoursesWInformation
Environmental Engineering MasterEM: SoilWInformation
Environmental Sciences BachelorBiogeochemistryWInformation
Environmental Sciences BachelorSoil SciencesWInformation
Environmental Sciences BachelorForest and LandscapeWInformation
Environmental Sciences MasterHydrology and Water CycleWInformation