Developed by T. Endreny at SUNY ESF in the Department of Environmental Resources Engineering
 glossary | menu | Normal | lg | hc | 6.) Rosgen Classification of Detailed Stream Type > Ouachita River Reach Pattern Exercise
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# Ouachita River Reach Pattern Exercise

### Exercise Objective

To apply Rosgen Level II pattern analysis and determine various FGM characteristics on the single threaded Ouachita River Reach.

### Exercise Process

1. Obtain a high resolution map of the picture shown on this page by right clicking on the image with your mouse to Save Target As … on your computer. Note the Ouachita River Reach of interest between points A and B on this map.
2. View the high resolution map 06_54_01a.jpg in ImageJ and determine pattern FGM properties. In Level II, morphological parameters measured using the channel pattern data are often confirmed and refined by in-field measurements.
3. Measure the following:
• Reach length between points A and B
• Valley length between points A and B
5. Compute the following. To make this calculation, you may need to refer to earlier instruction in FGM Module Section 3.

Image courtesy of USGS

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