Influence of Stage Discharge Relationship on the Annual Maximum Discharge Statistics

Ulderica Parodi () and Luca Ferraris ()

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2004, vol. 31, issue 3, 603-611

Abstract: Discharge data are traditionally derived from measures of watersurface levels using stage-discharge relationships. Astage-discharge relation is obtained from direct dischargemeasurements for a set of water surface levels by fitting anempirical relationship to the data set. Since discharge measuresare made only for low flow conditions, the historicalstage-discharge relationships can give rise to severemisinterpretation for high flow values. The present work analysisthe influence on discharge statistics of the rating curve errorsfor the Liguria region. The work shows that historicalstage-discharge relations are highly uncertain when used for theestimation of annual maximum discharge. Moreover, data produced bythe traditional stage discharge relationships when compared withdata derived from more reliable theoretical stage-dischargerelationships, have statistically important biases. The findinghighlights a new problem in the use of historical data for floodrisk assessment. Copyright Kluwer Academic Publishers 2004

Keywords: rating curve; discharge statistics; regionalization; discharge data errors (search for similar items in EconPapers)
Date: 2004
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://hdl.handle.net/10.1023/B:NHAZ.0000024893.57284.0e (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:31:y:2004:i:3:p:603-611

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1023/B:NHAZ.0000024893.57284.0e

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().