The Greenness of Water

A composite image showing how the greenness of stream water changes over time.

Deadman’s Run is a flashy urban stream. A distinct green color is prominent after storm events. The composite images above were constructed from a single morning (approximately 8:30 am) image from each day. The upper composite image was sliced so a beaver dam is visible in the foreground. The bottom image was sliced and cropped vertically to better display the color of the water in the creek.

Composite images and greenness index were all created using GRIME AI. Once the images were in hand, it took approximately 5 minutes to set up and run the composite slice and greenness index tools. The entire visual took about 15-20 minutes using GRIME AI, Excel and PowerPoint.

Two of the original images are shown below (both revealing an unfortunate amount of litter). More visuals and information on wildlife activity at this site can be found at https://go.unl.edu/dccstats.