American Society of Civil Engineers


Application of Northeast Regional Climate Center Research Results for the Purpose of Evaluating and Updating Intensity-Duration-Frequency (IDF) Curves — Case Study: Rochester, New York


by S. B. Wolcott, P.E., (Program Chair, Civil Engineering Technology, Rochester Institute of Technology, 78 Lomb Memorial Drive, Rochester, NY 14623 E-mail: sbwite@rit.edu), M. Mroz, (Undergraduate Student, Civil Engineering Technology, Rochester Institute of Technology, 78 Lomb Memorial Drive, Rochester, NY 14623 E-mail: mrm1042@rit.edu), and J. Basile, P.E., (Senior Engineer, Bergmann Associates, 28 E. Main Street, 200 First Federal Plaza, Rochester, NY 14614 E-mail: jbasile@BERGMANNPC.com)

pp. 6461-6469, (doi:  http://dx.doi.org/10.1061/41036(342)654)

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Conference Proceeding Paper
Part of: World Environmental and Water Resources Congress 2009: Great Rivers
Abstract: There has been much discussion regarding global climate change and potential impacts to the environment. One suggested impact of climate change is increasing storm intensity. Changes in rainfall intensity could significantly alter the accuracy of current stormwater management designs. Civil engineers and community planners use historical precipitation data and statistically generated models to design stormwater management facilities. It is not uncommon for civil engineers to design stormwater management facilities using models that are based on precipitation data published more than 50 years ago. The design of stormwater facilities is largely based on the amount of runoff generated from a design storm event. Rainfall intensities and depths for various storm frequencies are determined using local Intensity-Duration-Frequency (IDF) curves and isohyetal maps, respectively. The IDF curves currently in use in Rochester, New York were originally published in 1955 and generated using approximately 40 years of data. Approximately 55 years of additional precipitation data is now available. The purpose of this paper is to: 1) evaluate and report trends in precipitation observed at the Greater Rochester International Airport; and 2) Generate updated Intensity-Duration-Frequency (IDF) curves and compare these to existing IDF curves. This paper will use Rochester, New York as a case study.


ASCE Subject Headings:
Climate change
New York
Rainfall duration
Rainfall frequency
Rainfall intensity
Research
Stormwater management