historic flood in Ouray, photo courtesy of Denver Public Library

KNOW YOUR STREAMFLOW: The effect of landslides


Surface water erosion is the primary cause of landslides. When intense periods of rainfall or snowmelt saturate the landscape, it softens the soils mixed within various sizes of rocks and boulders below ground level. The…

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KNOW YOUR STREAMFLOW: The power behind flooding


Streamflow is the volume of water flowing past a certain point on a waterway at any given time of day. Heavy rains and snowmelt can produce runoff at a rate that exceeds the drainage capacity…

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Uncompahgre River discharge graph 2021-2022

KNOW YOUR STREAMFLOW: River discharge


Discharge… such an impersonal and flatly technical term for something so dynamic. It’s really just a description of how much water flows in a channel. Flow expressed in CFS or cubic feet per second over…

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KNOW YOUR STREAMFLOW: Air temperature and its impact on streamflows


Precipitation in the form of snowfall plays the dominant role in year-to-year streamflow variability in the Uncompahgre River Watershed, but air temperature also has a significant impact. In the spring, the air temperature rises, snowmelt…

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