| Semester 2 Credit Value: | 10 |
|---|---|
| ECTS Credits: | 5.0 |
None
None
To introduce current theory and practice of flood risk estimation and modelling. To give hands-on practice with industrial standard software.
This module introduces different frameworks for flood estimation and modelling from statistical to simulation, from data driven to physically based modelling and put them in wider context of flood risk management. Students will learn how to use industry standard flood estimation and modelling techniques. They will also learn how catchments and rivers are modelled for flooding and other purposes.
Background and motivation: frameworks for flood estimation and modelling, statistical versus simulation, data based versus physically based, catchment-river-urban-flood plain;
FEH Statistical Method I- Frequency analysis at a site, L-moments;
FEH Statistical Method II-Regional frequency analysis, Index flood, Qmed, pooling
FEH Practical 1- site and regional frequency analysis;
FEH Rainfall-runoff method- unit hydrograph, estimation from PCDs, applications, revitalised version
FEH Practical 2 – Use of FEH rainfall-runoff method;
Catchment Modelling I- Lumped Models-Top model, ARNO model, VIC, G2G/PDM;
Catchment Modelling II- Distributed Models- SHETRAN;
Continuous simulation and Rainfall modelling- Use of Catchment models for flood estimation: Newcastle and CEH work, climate change
Catchment modelling practiocal-comparison of two models SHETRAN and ADM;
River Modelling I-1d river modelling: schematisation of a river system, cross-sections, boundary conditions, numerical methods and parameters
River Modelling practical- building up of a simple river model using synthetic data and advanced software package (NOAH 1D and/or ISIS);
River Modelling II – more advanced schematisations, troubleshooting, floodplain mapping and 2d river modelling
River Modelling Practical 2 – Building a real model using real data, Calibration and verification; Schermatisation and modelling of different flood defences;
Integrated urban drainage modelling, sewer modelling, pollution;
Overview and synthesis: MDSF and CFMP, flood risk management.
At the end of this module, students should have:-
1. An understanding and practical familiarity with current modelling and statistical approaches to flood risk estimation and modelling.
2. An understanding of the range of different approaches used in flood modelling.
3. An understanding of the benefits and limitations of use of numerical models
At the end of this module, students should have achieved the following skills:-
1. To be able to competently apply current methods for flood risk estimation in basic cases.
2. To be able to choose, build and run catchment models.
3. To be able to build a 1D river model: schematise, parameterise, calibrate and validate it and use it to assess “what-if” scenarios.
| Graduate Skills Framework Applicable: | Yes |
|---|---|
| Category | Activity | Number | Length | Student Hours | Comment |
|---|---|---|---|---|---|
| Guided Independent Study | Assessment preparation and completion | 1 | 6:00 | 6:00 | Preparation and presentation of justification of the case study findings inc 15 minute presentation. |
| Guided Independent Study | Assessment preparation and completion | 1 | 21:00 | 21:00 | Development of river level model |
| Guided Independent Study | Assessment preparation and completion | 1 | 21:00 | 21:00 | Hydrograph generation |
| Scheduled Learning And Teaching Activities | Lecture | 22 | 1:00 | 22:00 | N/A |
| Scheduled Learning And Teaching Activities | Practical | 5 | 2:00 | 10:00 | Hydrograph generation and development of river level model |
| Guided Independent Study | Independent study | 1 | 20:00 | 20:00 | Includes background reading and reading lecture notes for a full understanding of material |
| Total | 100:00 |
To impart the basic theoretical and practical understanding represented by the knowledge and skills outcomes via a mix of self learning and formal teaching, including formal lectures and practicals with active student participation.
The format of resits will be determined by the Board of Examiners
| Description | Semester | When Set | Percentage | Comment |
|---|---|---|---|---|
| Case study | 2 | M | 100 | Hydrograph generation & development of river model for simulation of flood water levels, Approx 15 pages and justified in interview. |
A substantial piece of coursework will test the students' ability to understand and apply the knowledge they acquire in practice, including the use of methods and software. In addition, as it is an open ended work it also tests students' initiative.
Assessment will be 100% case study. A headstart will be made using computational resources during the practicals, with further analysis and writing up afterwards, followed by a justification oral.
1. Hydrograph generation
A 100-year flood hydrograph for a chosen catchment will be generated by three methods to enable comparison of performance and assessment of uncertainty.
(a) FEH statistical method to be used for single-site and pooled frequency analysis to generate 2 estimates of peak discharge.
(b) FEH Rainfall-runoff method to produce a 100-year design event hydrograph. An input extreme rainfall hyetograph will be provided which will produce (approximately) the 100 year event. Catchment PCDs will be provided to allow specifications of the Unit Hydrograph.
(c) Continuous simulation: a pre-calibrated ADM model will be provided together with appropriate input NSRP rainfall series to generate a 1000 year discharge series. This is to be analysed and a suitable 100-year event hydrograph extracted.
2. River level modelling
A river model should be developed using software used in practical sessions. Model will be set up and calibrated using supplied channel cross-sections and ancillary information. The three discharge estimates, from the first part of this case study, will be used as inputs to the model and if they demonstrate flooding in a reach of the river, the student is required to propose some possible flood defence schemes in order to alleviate the flooding and test the effectiveness of the proposed schemes by simulating them with the developed and calibrated model.
3. The student will need to justify their case study findings in 15 minute oral interview with module staff.
N/A
Note: The Module Catalogue now reflects module information relating to academic year 13/14. Please contact your School Office if you require module information for a previous academic year.
Disclaimer: The University will use all reasonable endeavours to deliver modules in accordance with the descriptions set out in this catalogue. Every effort has been made to ensure the accuracy of the information, however, the University reserves the right to introduce changes to the information given including the addition, withdrawal or restructuring of modules if it considers such action to be necessary.