Indicators of Hydrologic Alteration
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| To Obtain IHA Software |
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Please fill out this form and you will be directed to the software download (.zip, 5 MB). |
The IHA software program can be used with any type of daily hydrologic data, e.g., streamflow, river stages, ground water levels, lake levels, etc.
System Requirements
The IHA will run under any version of Windows. The installation will require about 4 MB of disk space.
User's Manual
Download the user's manual (.pdf, 649 kb)
Questions or concerns:
tfitzhugh@tnc.org
Tom FitzHugh
360-570-0762
IHA Applications Database
This document is a list of the various applications to which the IHA has been applied and is designed to help users identify others who are doing similar work, as well as make all IHA users aware of the diversity of possible applications of the IHA.
Applications Database (249 kb .pdf file, updated 6-17-05)
Please fill out this form and you will be directed to the software download (.zip, 5 MB). The Nature Conservancy never shares your e-mail address with outside organizations, but we will notify you as new versions of the IHA software become available. (Privacy Statement).
To Obtain IHA Software
Disclaimer: Because software is inherently complex and may not be completely free of errors, it is your responsibility to verify your work and make backup copies, and TNC will not be responsible for your failure to do so. In no event will TNC be liable for indirect, special, incidental, or consequential damages arising from use of or inability to use this product, including, without limitation, damages or costs relating to the loss of profits, business goodwill, data or computer programs, even if advised of the possibility of such damages. The foregoing limitations shall not apply to claims relating to death or personal injury which arise out of products deemed to be consumer goods under applicable law. Some states do not allow the exclusion or limitation of implies warranties of limitation of liability for incidental or consequential damages, so the above exclusion or limitation may not apply to you.
Any commercial use of this software is prohibited without the express, written consent of TNC.