Main presentation of the case of study by our tutor. Analysing information in excel (what can we do with what we have). The basin of La Tordera is characterised by having an heterogeneal spatial distribution. There are diferent stations from which we can extract data. 

Initial things that should be done:

• Check the diferent tutorials uploaded on the HydroEurope page. 

• Create a timetable with the organization of the group and decide the different roles of the team. 

• Set up meeting to start working on the case.

During these two weeks there were problems with the communication of the Group. Arnau created a Whatsapp Group in order to solve it.

We need to start with the Planning ASAP. To do this, we should do a meeting to create a Planning and start analysing the data.

In the Program Website (/Past Events) there may be some presentations from last year Edition. It could be useful to take a look to the main structure of the work, although we need to remember that it was based on another (although complementary) tòpic.

The first we need to do is start analysing the data: meteorològic information (we need to know how it happens, when it happens, maybe some kind of frequency analysis, and so on), climate change scenario, discharge gauge.

We need to start writing in the report of the Online Phase the work done. It is important so that way it will be easier to create the presentation needed for the face-to-face phase.

After Javier (tutor) left the reunion, some of us stayed to start organizing the work. We started creating some rules. Maryam, Alejandra and Arnau will be in charge of proposing an Organization of the group. Maryam created a when2meet to agree on a time for the next Meeting. Do start with the Planning, we must define the scope of the project.

6 attendees: Maryam, Alejandra, Xin, Amani, Matthew and Arnau.

Maryam made an Objectives document, which can be found in the Work Plan, as well as a simple outlay of the Planning of the project and the main tasks we should do. It is also suggested to try to put the Planning on some sort of Gantt Diagram or something.

Tasks are distributed into different subtasks, which then are distributed among the people present.

We also agreed to have some sort of Coordinator for the project, being Maryam the person chosen.

5 attendees: Maryam, Issa, Arnau, Emillie, Guillheim

Key Points Discussed

Task Updates:

1. • Team updated the professor on task progress; reporting has started for some.

   • Clarified doubts on missing information, with the professor advising us to email for further queries.

Preparation for HydroEurope Meeting (20/01):

1. • Rainfall Analysis:

     • Focus on average rainfall, behavior, seasonal trends, and hypothesis development.

   • Tools & Techniques:

     • Use Thiessen polygons, IDW methods, and HEC-HMS for analysis.

     • Import DEM, locate the outlet, and produce a hydrograph.

     • Calibrate using Cansimo station data and apply Curve Number (CN) for losses.

Deadlines:

1. • 20th January: Complete the model and submit individual reports on what you have contributed to the project up until that time (max 2 pages).

   • Confirm availability for the timing of 20/01 meeting and inform the professor.

Action Items:

• Finalize rainfall data analysis and tool implementation for 20/01

• Begin hydrological modeling in HEC-HMS.

• Prepare individual reports for 20th January.

5 attendees: Guilhem, Humbeline, Emilie, Maryam, Arnau

Maryam and Arnau couldn’t do many things due to exams.

Emilie, Humbeline and Guilhem started with the HMS. Emilie presents the work done. They downloaded more data, treated it with QGIS and imported to HMS, in order to have a baseline to start the project. They also created Subbasins, Junctions and the Sink (the outlet of the system).

Discharge data (rainfall) of one month were also imported (creating a Gage) as a first try to see that the model Works. This data needs to be put in order as there are too many entries. Excel to DSS in order to enter it to the HMS. For temperature, it can also be imported to HMS. They tried to import only one month of data to see if the model Works.

There is too much data, running the model with all of it risks overloading it. Therefore, we need to treat and reduce the data. How to do it? We need to pass from daily to monthly data and try if the model doesn’t overload. If it does, an strategy to further reduce the data will be needed. Emilie shared the model on the WhatsApp group so everyone can have access to it.

8 Atendees: Arnau, Ale, Emilie, Floria, Guilhem, Humbeline, Javier (professor), Maryam

About the report: professor have Arnau’s, Humbeline, and Guilhem. Ale sends it right now; Maryam and Emilie were waiting to have the meeting.

Emilie shares the screen to show the model developed. She couldn’t have any shapefile so she used he generated one for the basin from the data of Hydrosheds. She will send the model to Javier as he has some doubts about i fits correct. She will redo the model with the information, which is on the website. Javier says that the tutorial explains step by step how to build the model for the case of study.

Guilhem shows his model. He says that there has some was unable to find the curve number, but Javier tells him that he can extract it from the LandUse Information, as it is directly related to it. Baseflow is not important to the model, so it can be disregarded (parameters/baseflow/methods/none).

Javier repeats that all the model construction is in the tutorial, and to please ask him if anyone have some doubts.

Maryam, Ale and Arnau will try to follow the tutorials and create the model. About the data, last meeting we decided criteria to reduce the amount of data to not overload the model.

Javier tells us that we are going to analyse an specific event, so he was expecting that we have the curve number. We still need to build the hydraulic model of the river. He says that the basic thing is to understand the information (how does rainfall evolve between months, etc.). He will write a guide step by step to aid us into the model creation in HMS. We are going to reproduce this event, creating a hydrograph for it (he advises us to use Iber, we have a tutorial on this software). After that, we are going to reproduce the flood of 2021 on this area. The idea is to be able to do this step before the start of the Face-to-Face Phase.

We need to have the hydrological model running for the end of January. After that, we will start with the hydraulic part.

Someone should speak to Matthew, as he has not shown any activity on the project recently.

8 Atendees: Ale, Emilie, Floria, Guilhem, Humbeline, Javier (professor), Maryam, Matthew

1. Progress Update:

• Team updated the Professor on current progress.

• The HEC-HMS model is running; however, some re-adjustments are needed.

2. Model Adjustments:

• Issues with the area of station gauges were noted.

• Professor suggested using the Thiessen Polygon method in ArcGIS or QGIS for corrections.

3. Next Steps:

• Re-run the model with the adjusted area for station gauges.

• Aim to obtain a hydrograph of observed vs. simulated data.

Calibration:

After obtaining the hydrograph, calibration will be necessary to address mismatches.

4. Future Meetings:

• Next meeting scheduled for Wednesday (05/02/25) for updates. 

Additional Tasks:

• Continue building on hydro-meteorological data analysis.

• Integrate temperature and water balance analysis into the report.

• Work on data analysis for the general dataset and the Gloria event

Maryam & Ale will do the QGIS area estimation to send over to HEC-HMS model team (Emilie, Gullheim and humbeline) whereas Arnau & Floria continue to work on the Hydrometeorological analysis and incorporate it into the report.

7 Attendees: Ale, Emilie, Floria, Guilhem, Javier (professor), Maryam, Matthew

1. Current Updates:

• Successfully ran the model with the calculated values.

• Troubleshooting completed:

  • Corrected CN values and % weights.

  • Hydrograph obtained after adjustments.

2. Discussion - key questions to ask

What is the CN#?

What issues are we encountering?

Calibration Strategy:

• Adjust CN values to align observed and simulated results as closely as possible.

• Full calibration is not feasible due to inherent uncertainties.

• Aim for best possible fit before proceeding to the next phase.

3. Next Steps

Model Development

• Use the hydrograph data to build the next phase of the model.

• Begin working on IBER software for flood simulation.

📆 Tasks for Next Week

• Available Data:

  • DTM for the river (Resolution: 2 meters).

  • Land Use (LU) map for the river to determine Manning’s coefficient.

• Team Assignments:

  • Team 1: Telemat

  • Team 2: IBER

• Upcoming Meeting:

  • Date: Wednesday 12th

  • Agenda:

    • Review progress before Barcelona.

    • Touch on 2D model development.

Teams will be decided in the whatsapp group and their respective tasks will then be assigned. For updating the model on the correct values Emilie and Maryam are working on it. 

5 Atendees: Javier (professor), Maryam, Gilhem, Floria, Arnau.

Maryam asks about the Presentation that needs to be done. More or less 15 slides for the presentation (as there are 15 minutes for presentation). We should not explain the different step-by-step; we need to present the case of study, description (land-use, soil-type, etc), hydrometeorological information, information regarding main gauges, information regarding Gloria event, resume of what we worked with the model. If we have done anything with the 2-D model of the river, we should put at least one slide of it. Hydrological part to discuss calibration. If we have not done anything regarding 2-D model we can put what is going to be our approach to it. Not everyone needs to talk on the first presentation, as there are multiple presentations during the Face-to-Face phase. Be wary when presenting the graphs. Try not to put a lot of text.

Arnau have some doubts about Climate Change data and Evapotranspiration data, but as it is not needed right now and we are behind schedule, we will not talk about it by the moment.