The Performance of Natural Flood Management at the Large Catchment-Scale: A Case Study in the Warwickshire Stour Valley
Abstract
:1. Introduction
2. Method
2.1. Study Site
2.2. Available Data
2.3. Model Build and Sensitivity Analysis
3. Results
3.1. Model Sensitivity Analysis Findings
3.2. NFM Performance Summary: Lag-Times and Peak Attenutation
4. Discussion
4.1. Relative Sub-Catchment Timings of Peaks
4.2. Peak Attenutation and Flood Mitigation
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
- Intergovernmental Panel on Climate Change. Sixth Assessment Report. Available online: https://www.ipcc.ch/assessment-report/ar6/ (accessed on 21 November 2022).
- Environment Agency. National Flood and Coastal Erosion Risk Management Strategy for England. Available online: https://www.gov.uk/government/publications/national-flood-and-coastal-erosion-risk-management-strategy-for-england--2 (accessed on 21 November 2022).
- HM Government. Flood and Water Management Act. Available online: https://www.legislation.gov.uk/ukpga/2010/29/contents (accessed on 21 November 2022).
- HM Government. A Green Future: Our 25 Year Plan to Improve the Environment. Available online: https://www.gov.uk/government/publications/25-year-environment-plan (accessed on 19 September 2022).
- Burgess-Gamble, L.; Ngai, R.; Wilkinson, M.; Nisbet, T.; Pontee, N.; Harvey, R.; Kipling, K.; Addy, S.; Rose, S.; Maslen, S.; et al. Working with Natural Processes-Evidence Directory SC150005; Environment Agency: Bristol, UK, 2018. [Google Scholar]
- Dadson, S.J.; Hall, J.W.; Murgatroyd, A.; Acreman, M.; Bates, P.; Beven, K.; Heathwaite, L.; Holden, J.; Holman, I.P.; Lane, S.N.; et al. A restatement of the natural science evidence concerning catchment-based ‘natural’ flood management in the UK. Proc. R. Soc. A Math. Phys. Eng. Sci. R. Soc. 2017, 473, 20160706. [Google Scholar] [CrossRef] [PubMed] [Green Version]
- McIntyre, N.; Ballard, C.; Bulygina, N.; Frogbrook, Z.; Cluckie, I.; Dangerfield, S.; Ewen, J.; Geris, J.; Henshaw, A.; Jackson, B.; et al. The potential for reducing flood risk through changes to rural land management: Outcomes from the Flood Risk Management Research Consortium. In Proceedings of the British Hydrological Society Eleventh National Symposium, Dundee, UK, 6–8 September 2012. [Google Scholar]
- Leitão, J.P.; de Sousa, L.M. Towards the Optimal Fusion of High-Resolution Digital Elevation Models for Detailed Urban Flood Assessment. J. Hydrol. 2018, 561, 651–661. [Google Scholar] [CrossRef]
- Shaw, E.M.; Beven, K.J.; Chappell, N.A.; Lamb, R. Hydrology in Practice, 4th ed.; Spon Press: Abingdon, UK, 2011; ISBN 978-0-415-37042-4. [Google Scholar]
- Hankin, B.; Metcalfe, P.; Johnson, D.; Chappell, N.A.; Page, T.; Craigen, I.; Lamb, R.; Beven, K. Strategies for Testing the Impact of Natural Flood Risk Management Measures. In Flood Risk Management; Hromadka, T., Rao, P., Eds.; IntechOpen: London, UK, 2017; pp. 1–39. ISBN 978-953-51-3466-4. [Google Scholar]
- Lavers, T.; Charlesworth, S. Opportunity mapping of natural flood management measures: A case study from the headwaters of the Warwickshire-Avon. Environ. Sci. Pollut. Res. 2018, 25, 19313–19322. [Google Scholar] [CrossRef] [PubMed]
- Hankin, B.; Craigen, I.; Chappell, N.A.; Page, T.J.C.; Metcalfe, P.W. Rivers Trust Life-IP Natural Course Project: Strategic Investigation of Natural Flood Management in Cumbria. Technical Report December 2016. Available online: http://naturalcourse.co.uk/uploads/2017/04/2016s4667-Rivers-Trust-Life-IP-NFM-Opportunities-Technical-Report-v8.0.pdf (accessed on 30 November 2020).
- Chen, A.S.; Djordjević, S.; Leandro, J.; Savić, D.A. An analysis of the combined consequences of pluvial and fluvial flooding. Water Sci. Technol. 2010, 62, 1491–1498. [Google Scholar] [CrossRef] [PubMed]
- Ballard, C.; McIntyre, N.; Wheater, H.S. Effects of peatland drainage management on peak flows. Hydrol Earth Syst Sci. 2012, 16, 2299–2310. [Google Scholar] [CrossRef] [Green Version]
- Dixon, S.J.; Sear, D.A.; Odoni, N.A.; Sykes, T.; Lane, S. The effects of river restoration on catchment scale flood risk and flood hydrology. Earth Surf. Process. Landf. 2016, 41, 997–1008. [Google Scholar] [CrossRef]
- Metcalfe, P.; Beven, K.; Hankin, B.; Lamb, R. A modelling framework for evaluation of the hydrological impacts of nature-based approaches to flood risk management, with application to in channel interventions across a 29 km2 scale catchment in the United Kingdom: A modelling framework for nature-based flood risk management. Hydrol. Process. 2017, 31, 1734–1748. [Google Scholar] [CrossRef] [Green Version]
- McLean, L.; Beevers, L.C.; Pender, G.; Haynes, H.; Wilkinson, M. Natural Flood Management in the United Kingdom: Developing a Conceptual Management Tool. In Proceedings of the 35th IAHR World Congress, Chengdu, China, 8–13 September 2013. [Google Scholar]
- Iacob, O.; Rowan, J.; Brown, I.; Ellis, C. Natural Flood Management as a Climate Change Adaptation Option Assessed Using an Ecosystem Services Approach. In Proceedings of the British Hydrological Society Eleventh National Symposium, Dundee, UK, 6–8 September 2012. [Google Scholar]
- OS MasterMap National Overview Layer [GML Geospatial Data], Coverage: England, Updated January 2018, Ordnance Survey, GB. Using: EDINA Digimap Ordnance Survey Service, Downloaded: May 2018.
- OS MasterMap 1:250000 Layer [GML Geospatial Data], Coverage: England, Updated January 2018, Ordnance Survey, GB. Using: EDINA Digimap Ordnance Survey Service, Downloaded: May 2018.
- Shipston Area Flood Action Group. Slow The Flow. Available online: https://safag.org/learn/slow-the-flow/ (accessed on 21 November 2022).
- Capita Symonds. Post July 2007 Floods—Optioneering Assessment. 2008; (Unpublished work).
- Environment Agency. National Assessment of Flood Risk (NaFRA): RASP methodology. Available online: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/292928/geho0609bqds-e-e.pdf (accessed on 21 November 2022).
- Capita AECOM. Appendix B—York Slowing the Flow, Natural Flood Management Technical Report 2019. Available online: https://consult.environment-agency.gov.uk/yorkshire/slowing-the-flow-in-the-rivers-ouse-and-foss-a-lon/supporting_documents/York%20Slowing%20the%20Flow%20Appendix%20B%20%20NFM%20technical%20report.pdf (accessed on 21 November 2022).
- Cbec Eco Engineering UK. River Nith Restoration—Appendix I—Modelling Methodology Used for NFM Assessment. 2013. Available online: https://www.sepa.org.uk/media/103179/appendix-i-modelling-method-for-nfm-assessment.pdf (accessed on 21 November 2022).
- Ferguson, C.R.; Fenner, R.A. The potential for natural flood management to maintain free discharge at urban drainage outfalls. J. Flood Risk Manag. 2020, 13, e12617. [Google Scholar] [CrossRef]
- Environment Agency. Flood Risk Assessments: Climate Change Allowances. 2016. Available online: https://www.gov.uk/guidance/flood-risk-assessments-climate-change-allowances (accessed on 21 November 2022).
- Sayers, P.; Meadowcroft, I. RASP-A hierarchy of risk-based methods and their application. In Proceedings of the 2005 Defra Flood and Coastal Management Conference, York, UK, 5–7 July 2005. [Google Scholar]
- Quinn, P.; O’Donnell, G.; Nicholson, A.; Wilkinson, M.; Owen, G.; Jonczyk, J.; Barber, N.; Mardwick, M.; Davies, G. Potential Use of Runoff Attenuation Features in Small Rural Catchments for Flood Mitigation; Technical Report; Newcastle University: Newcastle upon Tyne, UK, 2013. [Google Scholar]
- Scottish Environment Protection Agency (SEPA). Flood Modelling Guidance for Responsible Authorities. 2018. Available online: https://www.sepa.org.uk/media/219653/flood_model_guidance_v2.pdf (accessed on 21 November 2022).
- Chow, V.T. Open-Channel Hydraulics; McGraw-Hill: New York, NY, USA, 1959. [Google Scholar]
- Lane, S.N. Slowing the floods in the U.K. Pennine uplands... A case of Waiting for Godot? J. Pract. Ecol. Conserv. 2008, 7, 75–91. [Google Scholar]
- Bracken, L.J.; Croke, J. The concept of hydrological connectivity and its contribution to understanding runoff-dominated geomorphic systems. Hydrol. Process. 2007, 21, 1749–1763. [Google Scholar] [CrossRef]
- Hankin, B.; Burgess-Gamble, L.; Bentley, S.; Rose, S. How to Map and Model Catchment Processes When Flood Risk Management Planning: Project SC120015/RI; Environment Agency: Bristol, UK, 2016. Available online: https://www.gov.uk/flood-and-coastal-erosion-risk-management-research-reports/how-to-model-and-map-catchment-processes-when-flood-risk-management-planning (accessed on 21 November 2022).
- Meire, D.; De Doncker, L.; Declercq, F.; Buis, K.; Troch, P.; Verhoeven, R. Modelling river-floodplain interaction during flood propagation. Nat Hazards 2010, 55, 111–121. [Google Scholar] [CrossRef]
- Nicholson, A.R.; Wilkinson, M.E.; O’Donnell, G.M.; Quinn, P.F. Runoff attenuation features: A sustainable flood mitigation strategy in the Belford catchment, UK. Area 2012, 44, 463–469. [Google Scholar] [CrossRef]
- Blanc, J.; Wright, G.; Arthur, S. Natural Flood Management Knowledge System: Part 2—The Effect of NFM Features on the Desynchronising of Flood Peaks at a Catchment Scale; Centre of Expertise for Waters: Edinburgh, Scotland, 2012; Available online: https://www.crew.ac.uk/sites/www.crew.ac.uk/files/sites/default/files/publication/CREW%20NFM%20Project%20-%20Task%202%20-%20Desync%20Peaks%20-%20FINAL.doc_.pdf (accessed on 21 November 2022).
- Reaney, S.; Pearson, C. Spatial Targeting of Natural Flood Risk Management within Large River Catchments: A Nested Approach of SCIMAP-Flood and CRUM3; Durham University: Durham, UK, 2014. [Google Scholar]
- Pattinson, I.S.; Lane, S.N.; Hardy, R.J.; Reaney, S.M. The role of tributary relative timing and sequencing in controlling large floods. Water Resour. Res. 2014, 50, 5444–5458. [Google Scholar] [CrossRef] [Green Version]
- Short, C.; Clarke, L.; Carnelli, F.; Uttley, C.; Smith, B. Capturing the multiple benefits associated with nature-based solutions: Lessons from a natural flood management project in the Cotswolds, UK. Land Degrad. Dev. 2018, 30, 241–252. [Google Scholar] [CrossRef]
- Owen, G.J. An Assessment of the Potential for Natural Flood Management and Land Management Practices to Mitigate Flooding in Catchments. Ph.D. Thesis, Newcastle University, Newcastle upon Tyne, UK, 2016. [Google Scholar]
- Nicholson, A.R.; O’Donnell, G.M.; Wilkinson, M.E.; Quinn, P.F. The potential of runoff attenuation features as a natural flood management approach. J. Flood Risk Manag. 2020, 13, e12565. [Google Scholar] [CrossRef] [Green Version]
- Niehoff, D.; Fritsch, U.; Bronstert, A. Land-use impacts on storm runoff generation: Scenarios of land-use change and simulation of hydrological response in a meso-scale catchment in SW-Germany. J. Hydrol. 2002, 267, 80–93. [Google Scholar] [CrossRef]
- Bulygina, N.; McIntyre, N.; Wheater, H. Conditioning rainfall-runoff model parameters for ungauged catchments and land management impacts analysis. Hydrol Earth Syst Sci. 2009, 13, 893–904. [Google Scholar] [CrossRef] [Green Version]
- Jackson, B.M.; Wheater, H.S.; McIntyre, N.R.; Chell, J.; Francis, O.J.; Frogbrook, Z.; Solloway, I. The impact of upland land management on flooding: Insights from a multiscale experimental and modelling programme. J. Flood Risk Manag. 2008, 1, 71–80. [Google Scholar] [CrossRef]
- National Trust; Environment Agency; Penny Anderson Associates; JBA Consulting. From Source to Sea—Natural Flood Management: The Holnicote Experience; National Trust: Swindon, UK, 2015. [Google Scholar]
- Reed, J.; Thomas, T. Case Study 21. Lustrum Beck Flood Alleviation Scheme: Phase 2. Available online: https://www.therrc.co.uk/sites/default/files/projects/21_lustrum.pdf (accessed on 21 November 2022).
- Chisholm, A. A Mature Oak Will Drink 50 Gallons of Water a Day. In Tree News Spring 2014; Think Publishing: London, UK.
- Newman, S.; Pilbeam, D.; Briggs, S. Agroforestry in the UK. In Temperate Agroforestry Systems, 2nd ed.; Gordon, A., Newman, S., Coleman, B., Eds.; CABI: Boston, MA, USA, 2017; pp. 72–97. [Google Scholar]
- Environment Agency. Risk Assessment of Flood and Coastal Defence Systems for Strategic Planning No. W5B-030/TR; Environment Agency: Bristol, UK, 2005. [Google Scholar]
- O’Connell, P.E.; Beven, K.J.; Carney, J.N.; Clements, R.O.; Ewen, J.; Fowler, H.; Harris, G.L.; Hollis, J.; Morris, J.; O’Donnell, G.M.; et al. Review of Impacts of Rural Land Use and Management on Flood Generation; Impact Study Report No. FD2114/TR; Department for Environment, Food and Rural Affairs: London, UK, 2004. [Google Scholar]
- UNESCO. Ecohydrology. Available online: https://en.unesco.org/themes/water-security/hydrology/ecohydrology (accessed on 21 November 2022).
Design Storms—Annual Exceedance Probabilities (AEPs) | ||||
---|---|---|---|---|
1% + 35% * | 1% | 3.3% | QMED ** (50%) | |
Total rainfall (mm) | 137.30 | 101.73 | 63.42 | 29.54 |
NFM Feature | Modelled Representation |
---|---|
Woodlands (including hedgerows) ** | Increased floodplain roughness—0.15 n value |
Online storage | Online storage unit * |
Offline storage | Reservoir unit * |
Leaky barriers | Increased channel roughness—0.15 n value |
River and floodplain restoration | Reservoir unit *, alter digital terrain model (DTM) + channel network |
Track drainage alteration ** | Junction function in the 1D network to divert |
Buffer strips | Increased floodplain roughness—0.075 n value |
Soil aeration, winter crops and zero tillage | Increased floodplain roughness—0.050 n value |
Swales, ponds, bunds and sediment traps ** | Edit DTM for runoff attenuation features (RAF) |
Cherington | Brailes | Blockley | Campden | Compton | All | Shipston | |
---|---|---|---|---|---|---|---|
Nash–Sutcliffe | 0.72 | 0.78 | 0.69 | 0.54 | 0.70 | 0.65 | 0.84 |
RMSE (±) | 0.041 | 0.039 | 0.089 | 0.108 | 0.068 | 0.092 | 0.026 |
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Lavers, T.; Charlesworth, S.M.; Lashford, C.; Warwick, F.; Fried, J. The Performance of Natural Flood Management at the Large Catchment-Scale: A Case Study in the Warwickshire Stour Valley. Water 2022, 14, 3836. https://doi.org/10.3390/w14233836
Lavers T, Charlesworth SM, Lashford C, Warwick F, Fried J. The Performance of Natural Flood Management at the Large Catchment-Scale: A Case Study in the Warwickshire Stour Valley. Water. 2022; 14(23):3836. https://doi.org/10.3390/w14233836
Chicago/Turabian StyleLavers, Tom, Susanne M. Charlesworth, Craig Lashford, Frank Warwick, and Jana Fried. 2022. "The Performance of Natural Flood Management at the Large Catchment-Scale: A Case Study in the Warwickshire Stour Valley" Water 14, no. 23: 3836. https://doi.org/10.3390/w14233836
APA StyleLavers, T., Charlesworth, S. M., Lashford, C., Warwick, F., & Fried, J. (2022). The Performance of Natural Flood Management at the Large Catchment-Scale: A Case Study in the Warwickshire Stour Valley. Water, 14(23), 3836. https://doi.org/10.3390/w14233836