Name: Percent Annual Streamflow

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Description: Flow regime is of fundamental importance in determining the physical and ecological characteristics of a river or stream, but actual flow measurements are only available for a small minority of stream segments, mostly on large rivers. Flows for all other streams must be extrapolated or modeled. Modeling is also necessary to estimate flow regimes under future climate conditions. Forest Service managers can use these models to learn more about their forests.

Copyright Text: http://www.horizon-systems.com/NHDPlus/NHDPlusV2_data.php

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