Frequency distributions and hydroclimatic characteristics of heavy rainstorms in Illinois

Huff, Floyd A.; Angel, James R.

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https://hdl.handle.net/2142/94523 Copy

Description

Title

Frequency distributions and hydroclimatic characteristics of heavy rainstorms in Illinois

Author(s)

• Huff, Floyd A.
• Angel, James R.

Contributor(s)

Illinois State Water Survey

Issue Date

1989

Keyword(s)

• Rainstorms
• Hydrometeorology
• Climatology

Geographic Coverage

Illinois

Abstract

This report presents the results of an extensive investigation of the distribution of heavy rainstorms in Illinois based on data for 61 precipitation stations operated during 1901-1983. Shown are frequency distributions of point rainfall for periods ranging from 5 minutes to 10 days and for recurrence intervals of from 2 months to I 00 years. Results are presented in two forms: mean relations for 10 regions of approximately homogeneous precipitation climate, and statewide isohyetal maps based on the 61-station data. Frequency relations are presented on both an annual and seasonal basis. Results of a special investigation are presented for Chicago and the surrounding six counties subject to urban influences on precipitation distribution. Information is provided on the expected dispersion of point rainfall frequency distributions about the mean in the 10 regions of similar rainstorm climate. Information is also provided on lhe spatial and temporal characteristics of heavy rainstorms in Illinois.

Publisher

Illinois State Water Survey

Series/Report Name or Number

Bulletin (Illinois State Water Survey) no. 70

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/94523

Has Version(s)

http://www.isws.illinois.edu/atmos/statecli/PDF/b70-all.pdf

Copyright and License Information

Copyright 1989 Board of Trustees University of Illinois

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