ephemeral stream

الإنجليزية - الإنجليزية

تعريف ephemeral stream في الإنجليزية الإنجليزية القاموس.: A channel at the upstream terminus of an intermittent stream that has flow only in direct response to precipitation; a stream that flows only during or immediately after periods of precipitation See also intermittent and perennial streams; means a stream which meets both of the following requirements: It flows only in direct response to precipitation in the immediate watershed or in response to the melting of a cover of snow and ice; and It has a channel bottom that is always above the local water table; A stream that flows only part time usually during snow melt periods or following rainstorms; A stream that flows only part-time usually during snow melt periods or following rainstorms; A stream, or reach of a stream, that flows only in direct response to precipitation It receives no protracted supply from melting snow or other source, and its channel is, at all times, above the water table; A stream or part of a stream that flows only after precipitation, and whose channel is always above the water table; A stream or portion of a stream that flows only in direct response to precipitation It receives little or no water from springs and no long continued supply from snow or other sources Its channel is at all times above the water table; A stream or part of a stream that flows only in direct response to precipitation or snowmelt Its channel is above the water table at all times; A stream whose channel lies above the water table and that flows only during or immediately after periods of precipitation; Streams that contain running water only sporadically, such as during and following storm events; A stream or portion of a stream that flows only in direct response to precipitation It receives little or no water from springs and no long-continued supply (less than a month and often only during storm events) from snow or other sources Its channel is at all times above the water table