Continued Operation of a 25-raingage Network for Collection, Reduction, and Analysis of Precipitation Data for Lake Michigan Diversion Accounting: Water Year 2017

Bauer, Erin

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https://hdl.handle.net/2142/101895 Copy

Description

Title

Continued Operation of a 25-raingage Network for Collection, Reduction, and Analysis of Precipitation Data for Lake Michigan Diversion Accounting: Water Year 2017

Author(s)

Bauer, Erin

Issue Date

2018-10

Keyword(s)

• water
• raingage
• weather
• precipitation
• Lake Michigan

Geographic Coverage

Northeast Illinois

Abstract

The volume of water diverted from Lake Michigan into the state of Illinois is monitored to ensure that the diversion does not exceed a long-term average of 3,200 cubic feet per second (cfs) as imposed by a 1967 U.S. Supreme Court Order, last updated in 1980. This diversion has a long history, dating back to the mid-1800s with the completion of the Illinois and Michigan Canals. Over the years, the diversion has been affected by such events as the flow reversal of the Chicago River and completion of theChicago Sanitary and Ship Canal in 1900, and has weathered various legal proceedings that attempted to ensure that the diversion could be monitored and did not exceed certain limits. One of the key components of the monitoring procedure, administered by the U.S. Army Corps of Engineers (USACE), Chicago District, is the accurate representation of the precipitation that falls over portions of Cook County, Illinois.This report describes and presents the precipitation component of the diversion monitoring including the maintenance and operation of the Cook County precipitation network, the data reduction and analysis techniques employed, monthly gage precipitation totals, and a brief data analysis for WY 2017, the 28th year of network operation.

Publisher

Illinois State Water Survey

Series/Report Name or Number

ISWS Contract Report CR-2018-03

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/101895

Sponsor(s)/Grant Number(s)

U.S. Army Corps of Engineers, Chicago District

Copyright and License Information

Copyright ... University of Illinois Board of Trustees. All rights reserved. This document is a product of the Illinois State Water Survey, and has been selected and made available by the Illinois State Water Survey and the University Library, University of Illinois at Urbana-Champaign. It is intended for research and educational use, and proper attribution is requested.

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