FEH catchments view

Updated on 24 Oct 2024
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FEH Catchment Descriptor functionality is outline here, with further details of the tabular view here.

Flood Estimation Handbook (FEH) catchment descriptors are calculated and published by UKCEH. Further details of descriptors are provided below:

FEH Online User Guide: Quick start - User Guide (hydrosolutions.co.uk)
NRFA technical reference: FEH Catchment Descriptors | National River Flow Archive (ceh.ac.uk)
Vol 5 of the Flood Estimation Handbook 1999: Flood-Estimation Handbook-5-Catchment-Descriptors_Adrian-Bayliss.pdf (ceh.ac.uk)

Imported FEH catchments will be displayed on the Map view when the View FEH Catchments button is toggled on. Additionally these catchments will be displayed in a list when the FEH Tabular View button is toggled on. Right-click menus are available from the FEH catchments from both of these views.

The FEH catchment colour and transparency displayed in the Map view can be adjusted via the Hydrology+ Application Settings.

The right-click menu from an FEH catchment in the Map view contains the following options:

Field in interface	Description
View gauge information	This option is relevant only when the selected component in the map is a Gauge station.
View catchment descriptor information	Opens the properties of the selected FEH catchment descriptor in a new window.
Delete catchment descriptor	Deletes the selected catchment descriptor from your hydrology database. This will mean the catchment descriptor is deleted fully and not available through any Hydrology+ projects. The catchment would need to be re-imported if needed in future projects. Note - Catchment descriptors used in a calculation point cannot be deleted from the database unless the calculation point is deleted first.
Create calculation point	Creates a Calculation point to perform hydrological analysis at this catchment.
Calculation point properties	These options are relevant only when the selected component in the map is a Calculation Point.
Delete calculation point
Other menu items	The remaining menu items are not specific to FEH catchments.

The right-click menu from an FEH catchment in the tabular view contains the following options:

Field in interface	Description
Select all	Allows you to quickly select all available catchments in the tabular view. The Select all option is useful when you want to perform batch operations on multiple catchments simultaneously. For example, you can delete all selected catchments or apply specific settings to all of them at once.
Go to selection	Allows you to quickly navigate to the specific location of that catchment on the map. This feature is helpful when you want to visually inspect the catchment area, its boundaries, and its relationship to other features within your model. It streamlines the process of locating specific catchments on the map, especially when dealing with multiple catchments.
View catchment descriptor info	Opens the properties of the selected FEH catchment descriptor in a new window.
Delete selected items	Deletes the selected catchment descriptor(s) from your hydrology database. This will mean the catchment descriptor is deleted fully and not available through any Hydrology+ projects. The catchment would need to be re-imported if needed in future projects. Note - Catchment descriptors used in a calculation point cannot be deleted from the database unless the calculation point is deleted first.

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Calculation points