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

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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) 

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GSS2021 - WHETGEO 2D premiere and some about Radiation

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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 

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GSS2021 - Various experiments and simulations with WHETGEO 1d

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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)

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

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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

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