QGIS SCS to TUFLOW: Difference between revisions
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Created page with "=Introduction= =Creating Design Rainfall and Runoff within SCS for use with TUFLOW= =Using TUFLOW Events= =Summary= =References= <sup>1</sup>Auckland Regional Council, April 1..." |
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<font color="red"><tt>'''This Page is under construction''' </tt></font>
=Introduction=
This page presents a recommended method for the application of the U.S. Soil Conservation Service (SCS) (now known as the Natural Resources Conservation Service, part of the U.S. Department of Agriculture) rainfall-runoff model. They are based largely on Technical Release No. 55 (TR55) prepared by the U.S. Soil Conservation Service (SCS, 1986).
=Creating Design Rainfall and Runoff within SCS for use with TUFLOW=▼
=Available models=
Currently, the tool is available for catchments in the Auckland Region<sup>1</sup>, however, further models are planned to be added.
==Auckland Region==
The model is recommended for use in stormwater management design in the Auckland Region. It has been designed as a standard tool that will provide consistent results from different users. Key features of the stormwater runoff model are described below:
* Design 24 hour rainfall depths are provided in the form of rainfall maps covering the Auckland Region.
* A standard 24 hour temporal rainfall pattern, having peak rainfall intensity at midduration. Shorter duration rainfall bursts with a range of durations from 10 minutes to 24 hours are nested within the 24 hour temporal pattern.
* Runoff depth is calculated using SCS rainfall-runoff curves, with curve numbers determined from the SCS guidelines according to classifications assigned to Auckland soil types.
=Using TUFLOW Events=
=Summary=
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