Peter Ulrich Lehmann Grunder: Katalogdaten im Herbstsemester 2022 |
| 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 | |
|---|---|---|---|---|---|
| 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 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 | ||||
| Inhalt | Week 1 (September 21): 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 28): Pore scale consideration, pore sizes, shapes and connectivity, coordination number, continuity and percolation; surface tension; Young-Laplace equation; capillary rise; contact angle. Week 3 (October 05): Friction and laminar flow; Hagen-Poiseuille’s law; Washburn equation; numerical lab (including report) Week 4 (October 12): 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 19): Soil water characteristics - definitions and measurements; parametric models, fitting and interpretation, hysteresis; Demo lab (including report) Week 6 (October 26): 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. Week 7 (November 02): 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 (November 09): Numerical solution of Richards equation – Using Hydrus1D for simulation of unsaturated flow; choosing class project (including report) Week 09 (November 16): 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 09 (November 23): Conductivity and resistance of soils – differences and similarities of hydraulic, electrical, thermal conductivities; Buckingham-Darcy, Fourier, and Archie’s law; pore scale characteristics and effective conductivities; soil thermal properties; steady state and non-steady heat flow Week 11 (November 30): Energy balance and land atmosphere interactions - Radiation and energy balance; evapotranspiration, potential and actual evaporation, definitions and estimation; evaporation stages and characteristic length Week 12 (December 07): Root water uptake and transpiration – Mechanisms controlling root water uptake; hydraulic properties of rhizosphere; plant and stomatal conductance Week 13 (December 14): Summary, questions, old exam Week 14 (December 21): Written Semester-end exam | ||||
| Literatur | Supplemental textbook (not mandatory) -Introduction to Environmental Soil Physics, by: D. Hillel | ||||
| 701-1673-00L | Environmental Measurement Laboratory Number of participants limited to 24. Waiting list will be deleted 23.09.2022. | 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 Week 2: Lecture on Measurement Science, overview of water content and water potential sensors; data logging and data logger programming; tests in the lab Week 3: Introduction on soil physics; Field installation of sensors and field experiment; data collection for a few days; solar panel Week 4: Soil sampling in field lab including geoprobe measurements Week 5: Introduction on forest lab - Soil sampling in forest lab; root length density; Week 6: Lecture on geophysical methods on Subsurface Characterization: Basic principles of ERT, GPR, and EM; simple lab tests on effective resistivity Week 7: Demonstration and application of geophysical methods in the field 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 | ||||