Do Filtered Temporal Patterns Resemble Real Patterns?
- Publisher:
- Engineers Australia
- Publication Type:
- Conference Proceeding
- Citation:
- Proceedings of H2009 the 32nd Hydrology and Water Resources Symposium, 2009, pp. 135 - 145
- Issue Date:
- 2009-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
 | 2008008437OK.pdf | 1.29 MB |
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Since publication of ARR87, available computer resources have increased thus enabling the analysis of a pluviograph record. This analysis typically involves extracting the significant storm events and determining the temporal patterns of these storms. These extracted temporal patterns will then be scaled for the design rainfall depth and filtered if necessary. Presented herein are the results of a study into the observed and filtered temporal patterns derived from the Sydney Observatory Hill pluviograph record. It was found that filtering changed the ranking of periods within the storm, changed the depth of antecedent rainfall prior to the intense part of the rainfall event, and changed the percentage of the storm occurring in the core of the storm (most intense part of the storm). Furthermore, if aggressive filtering of the observed temporal pattern is required, the user is probably better to not filter at all as the pattern will no longer resemble the original pattern.
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