Peter Ulrich Lehmann Grunder: Katalogdaten im Herbstsemester 2023 |
| Name | Herr Dr. Peter Ulrich Lehmann Grunder |
| Adresse | Physik der Böden u. terr. Ökosys. ETH Zürich, CHN E 35.1 Universitätstrasse 16 8092 Zürich SWITZERLAND |
| Telefon | +41 44 632 63 45 |
| peter.lehmann@env.ethz.ch | |
| Departement | Umweltsystemwissenschaften |
| Beziehung | Dozent |
| Nummer | Titel | ECTS | Umfang | Dozierende | |||||||||||||||||||||||||||||||||||||||||
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| 102-0527-00L | Experimental and Computer Laboratory I (Year Course)  | 0 KP | 6P | D. Braun, F. Evers, M. Floriancic, S. Frei, N. Klein, P. U. Lehmann Grunder, B. Lüthi, S. Pfister, F. Rüsch, D. F. Vetsch, M. Vogt, L. von Känel | |||||||||||||||||||||||||||||||||||||||||
| Kurzbeschreibung | In the Experimental and Computer Laboratory students are introduced to research and good scientific practice. Experiments are conducted in different disciplines of environmental engineering. Data collected during experiments are compared to the corresponding numeric simulations. The results are documented in reports or presentations. | ||||||||||||||||||||||||||||||||||||||||||||
| Lernziel | The student will learn the following skills: basic scientific work, planning and conducting scientific experiments, uncertainty estimations of measurements, applied numerical simulations, modern sensor technology, writing reports. | ||||||||||||||||||||||||||||||||||||||||||||
| Inhalt | The Experimental and Computer Laboratory is building on courses in the corresponding modules. Material from these courses is a prerequisite or co-requisite (as specified below) for participating in the Experimental and Computer Laboratory (MODULE: Project in the Experimental and Computer Laboratory): - WatInfra: Water Network Management - UWM: SysUWM + ProcUWM: Operation of Lab-WWTP - AIR: Air Quality Measurements - WasteBio: Anaerobic Digestion - WasteRec: Plastic Recycling - ESD: Environmental Assessment - GROUND: Groundwater Field Course Kappelen - WRM: Modelling Optimal Water Allocation - FLOW: 1D Open Channel Flow Modelling - LAND: Landscape Planning and Environmental Systems - RIVER: Discharge Measurements - HydEngr: Hydraulic Experiments - RemSens: Earth Observation and Landscape Planning - SOIL: Soil and Environmental Measurements Lab | ||||||||||||||||||||||||||||||||||||||||||||
| Skript | Written material will be available. | ||||||||||||||||||||||||||||||||||||||||||||
| 701-0535-00L | Environmental Soil Physics/Vadose Zone Hydrology | 3 KP | 2V + 1U | A. Carminati, P. U. Lehmann Grunder | |||||||||||||||||||||||||||||||||||||||||
| Kurzbeschreibung | The 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. | ||||||||||||||||||||||||||||||||||||||||||||
| Lernziel | Students are able to: -Characterize the different soils based on their key textural and structural properties. -Simulate and predict soil water retention and flow under varying environmental conditions and understand the key driving forces (capillarity, gravity, friction) and related water properties (surface tension and viscosity). -Predict soil hydraulic properties for varying soil textural classes. -Predict solute transport in soils for varying environmental conditions. -Predict energy balance and temperature dynamics in soils. -Predict conditions for plant water stress | ||||||||||||||||||||||||||||||||||||||||||||
| Inhalt | Week 1 (September 20): Introduction, content, structure of the course, objectives, bibliography, grading and evaluation; soil texture, particle size distribution, soil structure, soil surface area, porosity and bulk density Week 2 (September 27): Pore scale consideration (water in a single pore), pore sizes and shapes; surface tension; Young-Laplace equation; capillary rise; contact angle Week 3 (October 04): Friction and laminar flow; Hagen-Poiseuille’s law; Washburn equation; numerical lab (including report; report 1) Week 4 (October 11): Soil water content; soil water potential - The energy state of soil water; total water potential and its components; volumetric and gravimetric water contents; field capacity and wilting point Week 5 (October 18): Soil water characteristics - definitions and measurements; parametric models, fitting and interpretation, hysteresis; parameters) Week 6 (October 25): 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); effective conductivity; unsaturated hydraulic conductivity; Buckingham law. Unsaturated water flow in soils - Unsaturated hydraulic conductivity models and applications; Richards equation, Week 7 (November 01): Lab tour -demonstration of soil physical methods; lecture on HYPROP method; report on Hyprop data (report 2) Week 8 (November 08): Analytical description of unsaturated flow - steady state solutions for evaporation and infiltration; approximate solutions to infiltration (Green-Ampt, Philip); outlook on unstable and preferential flow Week 9 (November 15): Numerical solution of Richards equation – Using Hydrus1D for simulation of unsaturated flow; simulating HYPROP measurements (report 3) Week 10 (November 22): Energy balance and land atmosphere interactions - energy balance and heat flow; evapotranspiration, potential and actual evaporation, evaporation stages; thermal properties of soils Week 11 (November 29): Root water uptake and transpiration – Theory and mechanisms controlling root water uptake; hydraulic properties of rhizosphere; plant and stomatal conductance. Week 12 (November 06): Modeling root water uptake and transpiration; analytical approaches and modeling using Hydrus (report 4) Week 13 (December 13): 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. Week 14 (December 20): Summary, course synthesis, connections between the different topics, questions, old exam | ||||||||||||||||||||||||||||||||||||||||||||
| Literatur | Supplemental textbook (not mandatory) -Introduction to Environmental Soil Physics, by: D. Hillel | ||||||||||||||||||||||||||||||||||||||||||||
Kompetenzen |
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| 701-1673-00L | Environmental Measurement Laboratory | 5 KP | 4G | P. U. Lehmann Grunder, A. Carminati | |||||||||||||||||||||||||||||||||||||||||
| Kurzbeschreibung | Measurements are the sole judge of scientific truth and provide access to unpredictable information, enabling the characterization and monitoring of complex terrestrial systems. Based on lectures and field- and laboratory training, the students learn to apply modern methods to determine forest inventory parameters and to measure subsurface properties and processes. | ||||||||||||||||||||||||||||||||||||||||||||
| Lernziel | The students will be able to: - explain measurement principles that are used for characterization of landscapes and terrestrial systems - select appropriate measurement methods and sampling design to quantify key variables and processes above ground and in the subsurface - deploy sensors in the field - interpret collected laboratory and field data and report main conclusions deduced from measurements | ||||||||||||||||||||||||||||||||||||||||||||
| Inhalt | Week 1: Plant-Soil interactions – short introduction before sensor demonstration and installation in forest lab; Scholander pressure bomb (suction in leaves); LiCOR soil chamber Weeks 2 to 6 - Experimental Methods for Soil Health Assessment - - - - - - - - - - - - - - - - - - - - - - - - - - Week 2: Lecture on soil health and soil indicators; defining measurable soil health indicators for case studies for different soil threats and climate regions Week 3: Short lecture on sampling, sensors and data logging; preparing sensors and data loggers in the lab; measurements on water content and temperature in the lab Week 4: Short introduction on field installation; sensor installation at field site Hönggerberg Week 5: Lecture on geophysical methods on subsurface characterization: basic principles of ERT, GPR, and EM; planning of field experiment to assess soil health Week 6: Short introduction on data analysis; field sampling and conducting field experiment to assess soil health Week 7: Analysis of experimental data and soil health assessment; poster presentation and discussion - - - - - - - - - - - - - - - - - - - - - - - - - - Week 8: Lecture on plant soil relationship; connecting information below and above ground – data analysis Weeks 9 and 10: Forest characterization/ inventory: Principles of LiDAR; structures and features of the tree crowns, size/volume of the leaf area tree positions and diameters at breast height Weeks 11 and 12: Eddy covariance methods -Principles for field measurement of water vapor, carbon dioxide, and energy exchange between terrestrial surfaces and the atmosphere; Analysis of measured time series to determine evaporation rate and CO2-fluxes Week 13: Swiss Soil Monitoring networks – Monitoring of soil water content and potential; climate change and droughts Week 14: Global data – Global modeling and data interpretation; SoilGrids and OpenLandMap; exercises on Budyko analysis | ||||||||||||||||||||||||||||||||||||||||||||
| Literatur | Lecture material will be online for registered students using moodle | ||||||||||||||||||||||||||||||||||||||||||||
| Voraussetzungen / Besonderes | The details of the schedule will be optimized based on the number of students; some blocks of the course will be offered as well to students of Environmental Engineering | ||||||||||||||||||||||||||||||||||||||||||||
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