PKFQWin

The PKFQWin program, developed by the U.S. Department of the Interior | U.S. Geological Survey, is a valuable tool in the Education category, specifically within the Science Tools subcategory. The latest version, 5.2, features the executable file PKFQWin.exe and has a modest file size of [FILE_SIZE] MB. It is compatible with Windows XP, 7, and 8 operating systems.

The program is designed to estimate instantaneous annual-maximum peak flows for various recurrence intervals, ranging from 1.5 to 500 years. This includes the annual-Exceedance probabilities of 0.6667, 0.50, 0.4292, 0.20, 0.10, 0.04, 0.02, 0.01, 0.005, and 0.002. PKFQWin can read annual peaks in both the WATSTORE standard format and the Watershed Data Management (WDM) format, making it quite versatile.

One of the key features of PKFQWin is its capability to access annual peak flows directly from NWISWeb (available at http://nwis.waterdata.usgs.gov/usa/nwis/peak). Although listed as a Demo license, the program offers comprehensive functionalities suitable for educational purposes. While users might seek a free download, the demo version still provides substantial utility.

Pros:

1. Accurate estimates of annual-maximum peak flows for various recurrence intervals.
2. Supports multiple data formats including WATSTORE and WDM.
3. Direct access to annual peak flow data from NWISWeb.
4. Small file size, making it easy to download and install on multiple Windows OS versions.

Cons:

1. Limited by its Demo license.
2. Specific to Windows operating systems only, limiting accessibility for users on other platforms.

Overall, PKFQWin version 5.2 stands out as a potent tool for those in the educational and scientific communities, particularly for those involved in hydrology and watershed management. Despite the limitations of a Demo license, its robust features and lightweight nature make it a compelling choice for users seeking a free science tool.

It is not possible to confirm if there is a free download for this software available on the developer's website. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.

You may want to check out more software, such as Panel, Avantage BPM Foundation or Adding Machine, which might be similar to PKFQWin.