As we can see from the 2004 reshot, the greatest amount of change in this channel comes between 1927 and 2004. The largest change between these years is seen as the introduction of a dam, which led to a large reserviour forming behind it, north of Milton. The channel to the north of the reservoir seems to have straightened out in 2004 in comparison to 1927, and again in 2020. As far as other differences between 2004 and 2020, which there are few of, we can see that the section just below the bridge has gotten larger and more rounded.
When analyzing the maximum discharge and average annual stream flow, the standard deviations point out a key difference between them. The maximum discharge dataset has a percent standard deviation of 51.35%, whereas annual stream flow had a percent standard deviation of 24.30%. This large difference in variance between the two datasets makes sense when you consider what the data represents: the maximum discharge values are a measure of maximums, representing only the largest values of discharge each year, whereas the annual stream flow data represents annual averages. Of course, we can expect to see very large numbers in the maximum discharge dataset, with some very high outliers, such as 1928, which will skew the variance greatly. We don't see this in the average stream flow dataset due to the smaller, closer numbers year to year that aren't as greatly affected by large outliers.