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Open-File Report 2010–1221

Prepared in cooperation with DuPage County Department of Economic Development and Planning, Stormwater Management Division

User's Guide for MAGIC—Meteorologic and Hydrologic GenScn (Generate Scenarios) Input Converter

By Terry W. Ortel and Angel Martin, Jr.

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Meteorologic and hydrologic data used in watershed modeling studies are collected by various agencies and organizations, and stored in various formats. Data may be in a raw, un-processed format with little or no quality control, or may be checked for validity before being made available. Flood-simulation systems require data in near real-time so that adequate flood warnings can be made. Additionally, forecasted data are needed to operate flood-control structures to potentially mitigate flood damages. Because real-time data are of a provisional nature, missing data may need to be estimated for use in floodsimulation systems. The Meteorologic and Hydrologic GenScn (Generate Scenarios) Input Converter (MAGIC) can be used to convert data from selected formats into the Hydrologic Simulation System–Fortran hourly-observations format for input to a Watershed Data Management database, for use in hydrologic modeling studies. MAGIC also can reformat the data to the Full Equations model time-series format, for use in hydraulic modeling studies. Examples of the application of MAGIC for use in the flood-simulation system for Salt Creek in northeastern Illinois are presented in this report.

First posted September 15, 2010

For additional information contact:
Director, USGS, Illinois Water Science Center
1201 West University Avenue, Suite 100
Urbana, IL 61801
(217) 328–8747
Or visit the Illinois Water Science Center Web site at:

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Suggested citation:

Ortel, T.W., and Martin, A., Jr., 2010, User's guide for MAGIC—Meteorologic and hydrologic genscn (generate scenarios) input converter: U.S. Geological Survey Open-File Report 2010–1221, 10 p.




Program Functions

Conversion of Meteorologic and Hydrologic Data



References Cited

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