55010 - Wye at Pant Mawr
| Grid Reference: | 22 (SN) 843 825 | 
|
| Operator: | EA |
| Local number: | 55010 |
|
Catchment Area: | 27.2 km2 |
| Level of Station:
| 309.9 mOD |
| Max. Altitude: | 752.0 mOD |
| Mean
flow: | 1.66 m3s-1 |
| 95% exceedance (Q95): | 0.164 m
3s-1 |
| 10% exceedance
(Q10): | 3.908 m3s-1 |
|
61-90 Av. Ann. Rainfall: | 2338 mm |
Sample Hydrograph of Gauged Daily Flows
Flow Duration Curve for Gauged
Daily Flows
Station Description
Velocity area station. Informal Flat V weir
control from 1973. Flood warning only from Jul 1982. Station in headwaters of
Wye catchment.Catchment Description
The
catchment has underlying Silurian strata which are resistant to weathering.
Mostly forestry and grazing.Factors Affecting
Runoff
- Natural to within 10% at the 95 percentile flow.
River Flow and Catchment Rainfall on the National
River Flow Archive
| Gauged Daily Flows (gdf):
| 1955 to 1982 |
| Monthly Catchment Rainfall (rnf): | 1955 to 2008
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1990s | 2000s |
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For many stations monthly peak flows are also archived. When daily
flow data are not available monthly mean flows may be held on the National
River Flow Archive. See Data Holdings for further
information.
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