GSS2021 - Evaporation, Transpiration plants and their interaction with soil. LysGEO is about that.

Index -  Previous day

As usual, before starting, download the material at the appropriate OSF page. 

Water infiltration in soils is what WHETGEO does but soils are also exchanging water with the atmosphere trough evaporation (from soil) and transpiration (from vegetation). This school day treats with the issue of getting the transpiration right. This task is accomplished by the LysGEO modelling solution whose functioning is the core of the talks.

• A little of theory about evaporation from soil and transpiration (Vimeo2021)

• Introducing the FAO-Penman-Monteith estimation of evapotranspiration in GEOframe (Vimeo2021)
• The GEOframe-Prospero model evapotranspiration 
• The LysGEO Soil Vegetation Atmosphere mode modelling solution (part I) 
• The LysGEO Soil Vegetation Atmosphere mode modelling solution (part II) 

Index -  Previous day

GSS2021 - WHETGEO 2D premiere and some about Radiation

Index - Previous day- Next day

Please find the material of Day 3 at the OSF page. You find both the OMS3 project for this day and the Gmsh material for creating the grids. Please download them before starting. 

After having tried WHETGEO 1D it is time to test WHETGEO 2D. So far we used WHETGEO 2D just internally and never presented to other people, ecept for the thesis by Niccolò Tubini, the developer of the code. So this is kind the debut in society of the program. As the Thesis tells WHETGEO 2D inherit the algorithm of integration from WHETGEO 1D but differs from it because of the more complex topology of the 2-dimensional arrangement of the cells. The day third actually starts with the illustration of how to create an unstructured mesh. For the scope the open source tool GMSH is used Our choice falls on GMSH because it is an open source tool (written in C++) that works under Windows, Mac and Linux. Information can be found at its website. 

The days starts with practice whose videos are below but you can start giving a look to the slide-series that was prepared but not shown:

• Example 0 - Example 1 - Example 2 - Example 3 - Example 4 -Example4a

The videos then:

• Practical session on using Gmsh
• Creating subdomains with Gmsh
• Practical session with WHETGEO 2D

Changing topic we are now introducing in brief the estimation of radiation:

• The shortwave radiation in brief (Vimeo2021)
• The longwave radiation and the net radiation (Vimeo2021)

For estimating, eventually, the radiation using the GEOframe tools

• Estimating radiation with GEOframe 

Index - Previous day- Next day

GSS2021 - Various experiments and simulations with WHETGEO 1d

Next day- Previous Day - Index

The second day of the School is entirely dedicated to play with the WHEGEO 1D in various cases. Just a little more conceptual part is dedicated to the setting of the surface boundary conditions (which, for instance, Hydrus 1D is not able to deal with).

• Setting the surface boundary conditions in WHETGEO 1D (Vimeo2021)

Practical exercise regards:

• Simulating Infiltration excess (Vimeo2021)
• Exploring the dependence of saturated conductivity on temperature (Vimeo2021)
• Calibrating WHETGEO 1D with LUCA (Let Us CAlibrate) tool (Vimeo2021)
• Building a simulation with WHETGEO 1D from the scatch (Vimeo2021)

Next day - Previous Day - Index

GSS2021 - Introducing and solving the Richards-Richardson equation with WHETGEO 1d

Previous material of the GSS2021 (Installations) - Next day material - Index

The first GEOframe Summer School (moved to Autumn for organization issues), has just started. You can find the material of day one and two at these OSF pages.  Download the .zip files before starting which sill serve day 1 and day 2 of the School. 

They contain the slides:

• Introducing the Richards-Richardson (R2) equation  (Vimeo2021)
• The forces acting in soils (Vimeo2021)
• Switching seamlessly from the vadose conditions to the saturated ones (Vimeo2021)
• Three forms of the R2 equation (Vimeo2021)
• Numerically solving the R2 equation (Vimeo2021)

In the same pages you can find the examples run at the School and explained in the videos. Practical sessions with WHETGEO 1d  complete the first day of the GSS2021. 

• Example 0:
• The input files treatment (Vimeo2021)
• The .sim file explained (Vimeo2021)
• The analysis of the output files (Vimeo2021)
• Example 1 (Vimeo2021)
• Example 2 (Vimeo2021)

References 

Tubini, N. and Rigon, R., Implementing the Water, HEat and Transport model in GEOframe WHETGEO-1D v.1.0: algorithms, informatics, design patterns, open science features, and 1D deployment, https://doi.org/10.5194/gmd-2021-163

Previous material of the GSS2021 (Installations) - Next day material - Index

Installation of the GEOframe-verona environment

Go to the first day material page - Go to index

The GEOframe-Verona environment is the GEOframe environment for the Fall 2021. The instructions to install it can be found at this osf site. Please read carefully the instructions given in the installations.pdf file. The main difference with previous installations, if you browse the material is that for this  GEOframe Summer School 2021 (GSS2021) a mesh creator is required for the use of WHETGEO 2D. 

Please observe that you probably need to know something about the frameworks you will be using. For time constraints, this material will not be among the lectures of this school. However, you can refer to 

this material of the 2020 GEOframe Winter School: Getting started with OMS3 and GEOframe. 

Go to the first day material page - Go to index

GEOframe Summer School 2021 (GSS2021)

September 27 - September 28, 2021

October 4 - October 7, 2021

Scientific Committee and Leading Institutions: Prof. Riccardo Rigon, Ph.D.;  Prof. Giuseppe Formetta, Ph.D; Ing. Niccolò Tubini, Ing. Concetta D’Amato, Ing. Marialaura Bancheri, Ph.D.

Partners:

Department of Civil, Environmental and Mechanical Engineering, University of Trento

Center Agriculture Food Environment, University of Trento

Institute for Agricultural and Forest Systems in the Mediterranean, National Research Council, Ercolano NA, Italy

CONTENTS

The  Earth’s  Critical  Zone  (CZ)  is  defined  as  the  heterogeneous,  near  surface  environment  in  which  complex  interactions involving rock, soil, water, air, and living organisms regulate the natural habitat and determine the availability of life-sustaining resources (National Research Council, 2001). Clear interest in studying the CZ is spurred on by ever-increasing pressure due to the growth in human population and climatic changes.

 

Main topics will embrace the water flow (and heat transport) in porous media, the soil-plant-atmosphere continuum, and inverse problems. The aim of the course is to enable participants to run their own simulations with the GEOframe tools prepared to simulate the critical zone. They are process-based (e.g. Fatichi et al, 2016) tools, whose ambition is to simulate the processes of infiltration, heat transport and evaporation and transpiration. The GSS2021 deals mainly with the 1D tools and introduces the 2D ones called WHETGEO (1D and 2D), GEOframe-Prospero and LysGEO.

 

Besides the lectures and the hands-on sessions, the Summer School is the occasion for discussion and experience exchange among senior scholars and young researchers.

The School will be online on the Zoom platform.

INDEX OF THE LECTURES for the inpatients (links to videos and material)

• Installations
• WHETGEO 1D - Introduction and material.
• Exercises with WHETGEO 1D 
• WHETGEO 2D and a little about radiation estimation
• Evaporation, Transpiration and their interactions with the soil, LysGEO

More details below. 

PARTICIPANTS' BACKGROUND

Admissions are reserved to up to 30, PhD students and postdoctoral students, young researchers willing to learn the use of the GEOframe tools envisioned for the study of infiltration, energy budget, vegetation transpiration, water budget with process-based models

All students are asked to upload a CV and a motivation letter when applying.

WORKLOAD AND CREDITS

The Summer School which is to be held in English, consists of 6 hours/day of activities for 6 days. The first two days, 27, 28 of September the installation of the GEOframe-OMS system tools and the general characteristics of the system.  Lectures will be brief, dedicated to informatics and most of the time will be used for supporting participants’ installations. 

The other four days will cover simulation of infiltration with WHETGEO-1D and 2D, with Prospero Transpiration model, and with the LysGEO model. There will be lectures on the hydrological processes implemented and applications to use cases. 

LOCATION

Due to the Covid-19 emergency all the activities will be held via Zoom.

PARTICIPATION COSTS

The cost is free for Students of the Hydrological Modelling Classes at the University of Trento, for Ph.D. students of the University of Trento DICAM and C3A programs, for the participants of the WATZON PRIN project and for all who wants to participate without having a certificate of GEOframe proficiency.  Subscription to the class is necessary to receive the information to participate.  For those who want the certificate, the Course costs 180 Euros. In any case the certificate is issued after the presentation of a small project of simulations for which appropriate tutoring will be given during and after the School.

CONTACTS

For further information write to: abouthydrology@google.com or to the Secretary of the Class dott. Lorena Galante, lorena.galante@unitn.it

OTHER INFORMATION

The GSS2021 talks and labs  will be recorded and made publicly available during the School for self-training through the GEOframe blog (http://geoframe.blogspot.com). 

Foreseen schedule

September 27-28: 

These days are dedicated to those who never approached the GEOframe system and pursue the understanding of  how it works. Who already knows how GEOframe works or have already installed it for different purposes than those of this School, can skip them

• Introduction to the Object Modelling System and GEOframe Infrastructures (Verona 2022 environment)
  
• Installation of OMS and GEOframe Verona
  
• Brief introduction to Jupyter notebooks and Python
  
• Few examples and Problem solving
  

Go to the installations page

October 4: 

This morning is mostly dedicated to fill theory of the processes investigated by  this School on GEOframe, meaning infiltration in soil, the basics of Richards/Richardson equation to which follow some exercises. The afternoon will be used to discuss issues related to the application of different boundary conditions, different parameterizations of the soil water retention curves.

Morning session

• The Richardson-Richards equation
  
• The equation and its parts, and three form of the equation
• Soil Water Retention Curves 
• Hydraulic conductivity models
  
• Numerical issues to keep in mind
  

Afternoon session

• Practical session on Richardson-Richards equation 
• one homogeneous layer
• stratified layers
• playing with boundary conditions
• Presenting the results with Jupyter Notebooks
  

The material and the videos of the day are available at this post.

October 5:

This day is dedicated to discuss the problem of the surface boundary condition. 

Morning session

• Surface boundary condition and numerical issues
• Practical session simulating:
• Horton process
• Dunnian process
• Presenting the results with Jupyter Notebooks

Afternoon session

• Individual exercises with support

The material and the videos of the second day

October 6:

This day is dedicated to the bi-dimensional case of the Richardson-Richards equation and to present the radiation energy budget. 

Morning session

• Installing the software for building unstructured grids
• Manage 2D unstructured grids. 
  
• Practical session on WHETGEO-2D on some pre-prepared cases
  

Afternoon session

• Theory of radiation energy budget
• Practical session on computing the radiation energy budget

The material and the video of the third day are here

October 7:

Day four is dedicated to the LysGEO model, evaporation and transpiration modelling and their coupling with R2.

Morning session

• Evapotranspiration theory and equations in the Prospero model
• Use of GEOframe - ET tools practices
  

Afternoon session

• LysGEO theory
• Practical session on LysGEO:
• Comparison between potential ET and actual ET
• Set different stress factors
• Comparison between different vegetation types
  

The material and the videos of the fourth day are here

Acknowledgements

This Summer School was partially supported by the WATZON PRIN project.

Specific Documentation

The specific documentation regards papers and thesis written on the GEOframe components used in this School. Other literature, of general interest,  is provided within the presentations given during the course. Practical documentation for any of the tasks is provided by means of Jupyter Notebooks, of which the general ones are reported below.

• Some essential about the Object Modelling System
• Bottazzi, Transpiration Theory and the Prospero component of GEOframe, M, Ph.D. Thesis
• Casulli, Vincenzo, and Zanolli, P. 2010. “A Nested Newton-Type Algorithm for Finite Colume Methods Solving Richards’ Equation in Mixed Form.” SIAM Journal of Scientific Computing 32 (4): 2225–73.
• David, O., Ascough II, J. C., Lloyd, W., Green, T. R., Rojas, K. W., Leavesley, G. H., & Ahuja, L. R. (2013). A software engineering perspective on environmental modeling framework design: The Object Modeling System. Environmental Modelling & Software, 39, 201-213.
• Tubini, N., Theoretical and Numerical Tools for Studying the Critical Zone from Plots to Catchments, Ph.D. Thesis
• Fatichi, Simone, Enrique R. Vivoni, Fred L. Ogden, Valeriy Y. Ivanov, Benjamin Mirus, David Gochis, Charles W. Downer, et al. 2016. “An Overview of Current Applications, Challenges, and Future Trends in Distributed Process-Based Models in Hydrology.” Journal of Hydrology 537 (C): 45–60.
• Bottazzi, M., Bancheri, M., Mobilia, M., Bertoldi, G., Longobardi, A., & Rigon, R. (2021). Comparing Evapotranspiration Estimates from the GEOframe-Prospero Model with Penman–Monteith and Priestley-Taylor Approaches under Different Climate Conditions. Water, 13(9), 1221.
• Tubini, Niccolò, and Riccardo Rigon. 2021. “Implementing the Water, HEat and Transport Model in GEOframe WHETGEO-1D v.1.0: Algorithms, Informatics, Design Patterns, Open Science Features, and 1D Deployment.” https://doi.org/10.5194/gmd-2021-163.