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| Titel |
Use of laser-scan technology to analyse topography and flow in a weir pool |
| VerfasserIn |
P. E. Dresel, P. Hekmeijer, J. F. Dean, W. Harvey, J. A. Webb, P. Cook |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 16, no. 8 ; Nr. 16, no. 8 (2012-08-13), S.2703-2708 |
| Datensatznummer |
250013421
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| Publikation (Nr.) |
 copernicus.org/hess-16-2703-2012.pdf |
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| Zusammenfassung |
| The development of laser-scan techniques provides opportunity for detailed
terrain analysis in hydrologic studies. Ground based scans were used to
model the ground surface elevation in the area of a stream gauge weir over
an area of 240 m2 at a resolution of 0.05 m. The terrain model was used
to assess the possibility of flow bypassing the weir and to calculate stream
flow during filling of the weir pool, prior to flow through the weir notch.
The mapped surface shows a subtle low-lying area at the south end of the
structure where flow could bypass the weir. The flow calculations quantify
low-flows that do not reach the weir notch during small rain events and flow
at the beginning of larger events in the ephemeral stream. |
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