GEOG 1001 10.10.16
GEOG 1001 10.10.16 Geog 1001
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This 2 page Class Notes was uploaded by Melanie Basinger on Monday October 10, 2016. The Class Notes belongs to Geog 1001 at University of Cincinnati taught by Nicholas Dunning in Summer 2016. Since its upload, it has received 2 views. For similar materials see Introduction to Physical Geography in Geography at University of Cincinnati.
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Date Created: 10/10/16
Introduction to Physical Geography 10.10.16 Floods River stage: water level in a river at a given time River regime: normal pattern of river stages throughout a year Floodcrest: the highest level a river reaches following a storm Recurrence interval: the average length of time before an event (e.g. flood) of the same magnitude is repeated; also known as return period Drainage Systems: Watersheds and Stream Responses Watershed (drainage basin): surface area drained by a single stream and its tributaries Drainage divide: highland between (dividing) watershed o Watersheds and drainage divides can be defined at many scales ranging from the three principal drainage divisions of North America (draining to the Pacific, Atlantic, and Arctic Oceans), to those of individual river systems and streams Hydrograph: graph of a stream’s response to an input of precipitation Quickflow (overland flow): the portion of water in a stream that originates as overland runof Baseflow (slow flow): the portion of water in a stream that originates soil water interflow or groundwater discharge The shape of a watershed can afect the arrival time of runof in a downstream location because the configuration of tributaries efects the distance between headwater and downstream locations The direction that a storm travels across a watershed can afect the arrival time of water in a downstream location because it efects the time distribution of rainfall within the watershed QUIZ QUESTION #20: Which of the following “storage spaces” is water the most likely to remain the longest before being “flushed” (replaced by new water)? Deep groundwater aquifers QUIZ QUESTION #21: Clearing a forest and building a large shopping mall and parking lot in the upper portion of a small watershed is likely to? Increase quickflow, reduce baseflow, reduce average volume of water in the stream QUIZ QUESTION #22: Which of the following will influence flood behavior in a watershed? Amount of paved area in the watershed, direction of storm movement across the watershed, shape of the watershed, and the existing soil moisture conditions
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