Modelling to support optimal location of flood measures

This October is the 3rd anniversary of the Calderdale Flood Action Plan (FAP) . You can find out more about who is involved with delivering the plan, the various pieces of work being undertaken and get an idea of the costs and the benefits of work already carried out through infographics produced to highlight key actions and work so far

Infographic about Natural Flood Management work as part of the Calderdale Flood Action Plan (from https://eyeoncalderdale.com/fap-3rd-anniversary)

iCASP academics been involved with work in Calderdale that aims to reduce the flow of water through the catchment using Natural Flood Management (NFM) measures. The iCASP project has been using a rain-fall run-off model, SD-TOPMODEL, to help with identifying which areas of 3 sub-catchments of the Upper Calder River contribute most to peak flows. Understanding which parts of a catchment are contributing most to flooding in the lower valley make it easier to assess the impact of locating an NFM measure in one place rather than another and allow prioritisation of those measures that will have greatest benefits.

The model produces maps like the one below that shows the speed at which water is flowing and uses rainfall data from nearby weather stations and high resolution terrain data. This modelling is combined with on-the-ground visits and meetings with landowners, land managers and flood risk managers to get the fullest picture of what is going on across the landscape when it rains.

SD-TOPMODEL output showing the baseline modelling for the Jumble Hole catchment

The modelling and site visits improve understanding of what contributions existing landscape features already make;  for example hedges and walls can help slow the flow of water across the land and by acting as a temporary store help reduce the peak flows of water. These aspects can then be included to further improve the representation of these features in the model. The modelling and site visits also allow experts to identify where in the landscape new NFM features can be located to further slow and store water.

At a meeting in November the modelling results will be presented to all the partners working on flood measures in Calderdale. From these results a handbook will be created to assist land owners in targeting appropriate NFM interventions, and to further understand how the whole catchment responds during flood events.

Working with large land owners

Last week iCASP facilitated a meeting with the National Trust and Water@Leeds to identify future opportunities for collaborative working.

The National Trust (NT) are one of the largest land owners in the UK, and around 40% of land in the UK drains into a watercourse which runs through a NT property. The Trust recognises it has a responsibility to restore environments to healthy, beautiful and well-functioning status as well as ensuring their ongoing management methods and practices maintain that status.  They’re not just seeking to help store carbon, reduce flooding and restore soil health, but do this whilst also ensuring the land they own remains beneficial to wildlife and people.

Staff from Water@Leeds and the National Trust meeting to discuss priorities, expertise and future ways of working (photo credit: Jenny Armstrong)

Collaborating with Water@Leeds will enable the Trust to feed into the latest research and development activities which in turn could increase the implementation of evidence-based management decisions across their properties. Collaborating with the Trust provides opportunities for researchers to trial innovative new activities in real world settings and access a wealth of information from those who live on and manage the land. iCASP can help to facilitate this collaboration by identifying the priorities of the National Trust and translating Water@Leeds research to help answer key questions to the challenges faced.

The meeting considered several ways of working together; from PhD studentships to research grants and fellowships. Possible collaborations were identified across a range of topics including water quality, habitat management and biodiversity enhancement, natural flood management and carbon management. These themes cut across a variety of catchments where both the Trust and University of Leeds researchers work.

The National Trust are already project partners on the iCASP Payment for Outcomes project that is seeking to include natural flood management (NFM) in the Trust’s Payment for Outcomes pilot. In turn the Trust’s pilot will inform Defra’s new Environmental Land Management Scheme (ELMS) and how a range of different measures to improve environmental outcomes can be included and paid for.  The iCASP project focuses on several of the Trust’s tenanted farms and aims to identify which NFM interventions are most suited to the farms and surrounding land, and pay farmers and land managers for the work they undertake to achieve these improvements.

Photos from visits to National Trust farms to identify sites for Natural Flood Management interventions as part of the Payment for Outcomes project (photo credit from L-R: Ben Rabb, Tom Willis, Poppy Leeder, Ben Rabb)

We hope to build on the partnership working already underway and facilitate more collaboration in the future to benefit the beautiful places owned and managed by the Trust for the benefit of us all.

 

Additional links that may be of interest:

National Trust Riverlands project

POSTnote on Natural Flood Management

Getting research in to Parliament

On the iCASP office wall, amongst lists of current and developing projects, year planners and maps there is a brightly coloured poster about getting research in to parliament.  As iCASP is all about achieving impact from existing environmental science we do a range of activities to ensure iCASP’s work gets into parliament. Below is a summary of some of this activity

A new webpage on the iCASP website details some of our responses to various consultations and inquiries. These vary from the local to the national level and they draw on science right across the iCASP remit.  And it isn’t just written evidence. Recently Alison Dunn, who leads our Invasive Non Native Species project, was invited to attend and give oral evidence to the Environmental Audit Committee as part of their Invasive Species inquiry

Environmental Audit Committee oral evidence session as part of the Invasive Species inquiry

Written and oral evidence to inquiries and consultation isn’t the only way that iCASP and the people that work on iCASP projects get research in to parliament.

Another way of getting our work in front of MP’s and their researchers is talking to them directly.  Joe Holden Director of iCASP, was recently asked to meet with Alex Sobel MP and brief him on iCASP and the projects we are funding. iCASP has also met with MPs Rishi Sunak and Julian Sturdy out in the Yorkshire Dales to tell them about iCASP.

3 tweets showing direct engagement with MPs: Joe Holden meeting with Alex Sobel,  and Angela Smith speaking at Confluence 2018  and Alex Sobel at Confluence 2019 having both mingled with attendees in the morning break

Every year we invite an MP to give a key note talk at our annual Confluence event, and then plan the agenda to time their arrival to coincide with a break allowing them to talk to a range of people working across different iCASP projects. The Yorkshire catchment that iCASP covers is large so there are a lot of MP’s constituencies meaning the MPs we engage with will have different priorities depending upon constituency location. Many are involved with different select committees, have Ministerial roles or are in the shadow cabinet, or are involved with different APPGs based upon their personal interests. We had Angela Smith MP attend Confluence in 2018 and Alex Sobel joined us this year. This allowed us to engage with them as constituency MPs and also as members of the Environment, Food and Rural Affairs and Environmental Audit Committees respectively.

Networking is another way that our researchers can get iCASP research in to parliament. This might be as simple as attending an event organised for parliamentarians such as the recent IUCN Peatlands meeting in the houses of parliament.

The work of researchers working on iCASP projects gets used in many different ways, one recent example is the report from ONS looking at the natural capital of UK peatlands which drew on the work of several iCASP researchers. Researchers can also act as external reviewers of articles, reports and papers having an input that way. iCASP director Joe Holden was an external reviewer for the recent POSTnote on Wildfires.

And finally, in these days of social media its very easy to get information in front of MPs directly by just responding to their questions, for example Holly Lynch MP recently asked the government about future plans for managing peatland responsibly, we were able to point her in the direction of our optimal peatland restoration work.

This is just a snapshot of some of the activities we’ve been involved with to get research into parliament; it demonstrates the diversity of opportunities available and demonstrates the need for researchers to continually engage with parliament at different levels to ensure their understanding and knowledge is based on the most up to date science available. We have a busy Autumn of consultation responses planned, but it’s worth the effort knowing that this will be influencing policy making and future policies that affect the catchment and all who live here.

Natural flood management in the media

This week has seen the 12th anniversary of the 2007 floods which impacted across swathes of the UK and affected villages, towns and cities across Yorkshire. It is timely to look at some of the measures put in place since then to alleviate flooding in the future. Natural flood management (NFM) has had some coverage in the media recently with both the BBC and ITV reporting stories that cover activities iCASP projects are supporting.

Countryfile recently visited Hardcastle Crags near to Hebden Bridge to find out more about leaky dams and how they will help tackle flooding in the future. The NFM work in Hardcastle is as a direct result of the 2015 Boxing Day floods. iCASP has been working with the Environment Agency, JBA and the Yorkshire Dales Rivers Trust, amongst others, on monitoring and measuring the range of benefits of NFM measures such as the leaky dams seen in the programme. The main focus of iCASP’s work has been developing approaches to measure whether or not the dams work to deliver flood alleviation. A future focus of the work will be to help quantify the additional benefits of these types of interventions – such as more varied habitat for wildlife, improved water quality and enhanced well-being for visitors to the area – which will be vital for making the business case for future natural flood management measures.  Find out more about the Hardcastle Crags leaky dams from Countryfile

Images of leaky dams and volunteers by Slow The Flow Calderdale

Natural flood management encompasses a range of different measures, not just leaky dams. An ITV news report on tree planting in Hebden Bridge mentioned how this work will draw upon the expertise of iCASP later in the year to understand the impact of trees already planted. iCASP will be working on the project to help identify how features, such as trees and hedges, can absorb heavy rainfall and contribute to alleviating flooding, as well as investigating how different soil types and land covers also contribute to flooding. Decisions on where trees and hedges should be planted in the future, for optimal benefit, will be informed by a rainfall-runoff model developed at the University of Leeds.  Read the ITV report

These NFM activities rely upon a range of different partners getting involved. A diagram showing the range of different partner organisations, drawing from the voluntary, charitable, private, public and regulatory sectors, has been developed to give a flavour of the interactions in these activities in the Calderdale area.  View the interactive diagram

Paying farmers for natural flood management

Photocredit: Andrew Walker, Yorkshire Water

A group of farmers are at the heart of an iCASP project which will be supporting the trial of a new national scheme for paying land managers to deliver benefits such as healthy soil or an increase in bees and other pollinators. The National Trust and Yorkshire Dales National Park Authority are running a ‘Payment for Outcomes’ trial with a group of  tenant farmers in the Yorkshire Dales which will help to test the feasibility of Defra’s new Environmental Land Management Scheme (ELMS).

Read morePaying farmers for natural flood management

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