Potential of extending the rainfall intensity-duration-frequency relationship to non-recording rain gauges

Pao-Shan Yu, Chia Jung Chen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Maximum rainfall intensity-duration-frequency (IDF) curves are commonly applied to determine the design rainfall in water resource projects. Normally, the IDF relationship is derived from recording rain gauges. As the network of non-recording rain gauges (daily rainfall) in Taiwan has a higher density than recording rain gauges, attempts were made in this study to extend the IDF relationship to non-recording rain gauges. Eighteen recording rain gauges and 99 non-recording rain gauges over the Chi-Nan area in Southern Taiwan provide the data sets. The regional IDF formulae were generated for ungauged areas to estimate rainfall intensity for various return periods and rainfall durations larger than or equal to one hour. For rainfall durations less than one hour, a set of adjustment formulae were applied to modify the regional IDF formulae. The method proposed in this study had reasonable application to non-recording rain gauges, which was concluded from the verification of four additional recording rain gauges.

Original languageEnglish
Pages (from-to)377-390
Number of pages14
JournalHydrological Processes
Volume11
Issue number4
DOIs
Publication statusPublished - 1997 Mar 30

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precipitation intensity
gauge
rainfall
rain
return period
water resource

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

Cite this

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abstract = "Maximum rainfall intensity-duration-frequency (IDF) curves are commonly applied to determine the design rainfall in water resource projects. Normally, the IDF relationship is derived from recording rain gauges. As the network of non-recording rain gauges (daily rainfall) in Taiwan has a higher density than recording rain gauges, attempts were made in this study to extend the IDF relationship to non-recording rain gauges. Eighteen recording rain gauges and 99 non-recording rain gauges over the Chi-Nan area in Southern Taiwan provide the data sets. The regional IDF formulae were generated for ungauged areas to estimate rainfall intensity for various return periods and rainfall durations larger than or equal to one hour. For rainfall durations less than one hour, a set of adjustment formulae were applied to modify the regional IDF formulae. The method proposed in this study had reasonable application to non-recording rain gauges, which was concluded from the verification of four additional recording rain gauges.",
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Potential of extending the rainfall intensity-duration-frequency relationship to non-recording rain gauges. / Yu, Pao-Shan; Chen, Chia Jung.

In: Hydrological Processes, Vol. 11, No. 4, 30.03.1997, p. 377-390.

Research output: Contribution to journalArticle

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