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EcoActuary: Investment Planner-UK can be used to assess the scale of NFM investment necessary to make a difference
How it works: Environment Agency flow data is used to calculate the water volume represented by the rising limb of a flood hydrograph. The maximum of this volume (the largest flood) peak over the observation period is assumed to be volume required for 100% mitigation. The user enters what proportion of this volume (flood peak) they wish to mitigate and the tool calculates the volume of storage that NFM must hold back to achieve that mitigation. Since the EA timeseries used are short, the difference between mean stage and highest observed stage at the nearest stage gauge is used to calculate a multiplier that better represents the longer term maximum flow. Users can enter the per unit volume cost of different NFM techniques and the tool will estimate the budget required to mitigate at the level required. EIP takes no account of how the placement of NFM in specific catchment positons can make a difference: a spatial model like EcoActuary is necessary for that. This tool uses data supplied by UK EA through DEFRA opendata.		3. Choose the station IDs that you want to use here (or leave blank for these to be chosen automatically below)Loading...(L2402)(F2102)
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1. Please complete the fields below indicating the location of assets at risk the drop-down list on the right will then be populated with the nearest flow and stage stations. Then set the mitigation requirement:4. The results for your analysis will appear here:Asset location mapmapRiver Ouse stage station mapFlow gauge location mapAll locations
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River, catchment or station nameLatitude: Longitude:Flood peak reduction target (%)Cost per m^3 of mitigation (leaky dams) GBP/m^3Cost per m^3 of mitigation (conservation agriculture) GBP/m^3Cost per m^3 of mitigation (ponded surface storage) GBP/m^3Upstream storage volume required to meet flood risk reduction requirement (m^3), for max. observed CIVUpstream storage volume required per % of flood peak reduction (m^3), for max. observed CIVCost of full mitigation (using leaky dams) GBPCost of full mitigation (using conservation agriculture) GBPCost of full mitigation (using ponded surface storage) GBPLocation of assets at risk (location)Rainfall StationsStage StationsFlow StationsTime
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Mersey53.386906-2.60747615£61.63£2.85£16.82#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#REF!#VALUE!L2402F2102#ERROR!
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Highest recorded level (m):4.197Max level over period shown (m):0Flood flow multiplier:#DIV/0!Change in max flow (%):#DIV/0!Change in min flow (%):#DIV/0!Change in total volume (%):#DIV/0!Latitude:
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Longitude:
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Name (label):
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River name:
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Distance (km):
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2. Add station numbers here (in brackets) and then choose from drop down lists above.(056505)(L2402)(F2102)
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