Flood estimation by combining gauged and paleo data

C. Peng, L. Duckstein, D. R. Davis, Victor Baker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the Salt River basin possessing paleoflood study has been selected for flood estimations. By plotting the flood data on log-normal probability paper, it is found that the trend of high floods, whose peaks are greater than 2,400 m3/s, deviates from the straight line fitted to the gauged flood data and the trend of these high floods is similar to that of the paleofloods. Thus, it is reasonable to assume that these high floods belong to different probability distributions than that of the rest. The distributions for the high values of gauged flood data and the paleoflood data are assessed by linear regression using their plotting positions on probability paper. Then, a Bayesian statistical approach is applied to combine the gauged flood data and paleoflood data. The floods estimated by the combined distribution are much lower than those obtained by the conventional methods. For example, the 100 year flood estimated by the combined distribution is about 60% of that obtained by a Pearson type III distribution.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Water Resources Planning and Management Conference
EditorsE Loucks
PublisherASCE
Pages425-430
Number of pages6
StatePublished - 1998
EventProceedings of the 1998 25th Annual Conference on Water Resources Planning and Management - Chicago, IL, USA
Duration: Jun 7 1998Jun 10 1998

Other

OtherProceedings of the 1998 25th Annual Conference on Water Resources Planning and Management
CityChicago, IL, USA
Period6/7/986/10/98

Fingerprint

paleoflood
Linear regression
Catchments
Probability distributions
river basin
Rivers
distribution
Salts
salt
trend
paper

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology

Cite this

Peng, C., Duckstein, L., Davis, D. R., & Baker, V. (1998). Flood estimation by combining gauged and paleo data. In E. Loucks (Ed.), Proceedings of the Annual Water Resources Planning and Management Conference (pp. 425-430). ASCE.

Flood estimation by combining gauged and paleo data. / Peng, C.; Duckstein, L.; Davis, D. R.; Baker, Victor.

Proceedings of the Annual Water Resources Planning and Management Conference. ed. / E Loucks. ASCE, 1998. p. 425-430.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Peng, C, Duckstein, L, Davis, DR & Baker, V 1998, Flood estimation by combining gauged and paleo data. in E Loucks (ed.), Proceedings of the Annual Water Resources Planning and Management Conference. ASCE, pp. 425-430, Proceedings of the 1998 25th Annual Conference on Water Resources Planning and Management, Chicago, IL, USA, 6/7/98.
Peng C, Duckstein L, Davis DR, Baker V. Flood estimation by combining gauged and paleo data. In Loucks E, editor, Proceedings of the Annual Water Resources Planning and Management Conference. ASCE. 1998. p. 425-430
Peng, C. ; Duckstein, L. ; Davis, D. R. ; Baker, Victor. / Flood estimation by combining gauged and paleo data. Proceedings of the Annual Water Resources Planning and Management Conference. editor / E Loucks. ASCE, 1998. pp. 425-430
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