Downstream - In the same direction as a stream or other flow, or toward the direction in which the flow is moving.
Dry Adiabat - A line of constant potential temperature on a thermodynamic chart. See Fig. 6, sounding.
downstream"The direction toward which a fluid is moving, usually implying the horizontal component of the mean direction or direction of the basic current; the opposite of upstream.
Downstream Slope: The slope or face of the dam away from the reservoir water. This slope requires some kind of protection (e.g. grass) from the erosive effects of rain and surface flow.
The region downstream from a wind speed maximum in a jetstream (jet max), in which air is moving away from the region of maximum winds, and therefore is decelerating.
Ice Twitch Downstream movement of a small section of an ice cover. Ice twitches occur suddenly and often appear successively.
Impermeable Material that does not permit fluids to pass through it.
Downdraft - A small-scale column of air that rapidly sinks toward the ground, usually accompanied by precipitation as in a shower or thunderstorm. A downburst is the result of a strong downdraft.
Downstream - In the same direction as a ...
Occurs when prevailing wind direction is from the same direction as the elevated terrain and often produces fair weather conditions.
Downstream- In the same direction as a stream or other flow, ...
Travel TimeIn hydrologic terms, the time required for a flood wave to travel from one location to a subsequent location downstream.
Left Exit RegionUsed interchangably with Left Front Quadrant; the area downstream from and to the left of an upper-level jet max (as would be viewed looking along the direction of flow).
Drains (Relief Wells)In hydrologic terms, a vertical well or borehole, usually downstream of impervious cores, grout curtains or cutoffs, ...
Flood ProfileIn hydrologic terms, a graph of elevation of the water surface of a river in flood, plotted as ordinate, against distance, measured in the downstream direction, plotted as abscissa.
catanadromous Fish that swim downstream to spawn. Chernozem (Tchernozem) A major group of dark-colored zonal soils with a rich and deep humus horizon occurring in temperate-to-cool, subhumid climates.
Speeds are of the order 80-130 knots (40-65 m/s), but may be as high as 180 knots (90 m/s), and downstream of main continental land masses in late winter/early spring, in excess of 200 knots (100 m/s).
Hydrologic terms, upstream flooding caused by downstream conditions such as channel restriction and/or high flow in a downstream confluence stream.
NOAA National Weather Service - Cite This Source - This Definition ...
Downstream, the entire community of Daly River - more than 400 people - was evacuated, and every building inundated.
Left Front Quadrant (or Left Exit Region) - The area downstream from and to the left of an upper-level jet max (as would be viewed looking along the direction of flow).
Air passing over a mountain oscillates up and down as it moves downstream (as shown in the diagram below). Initially, stable air encounters a mountain, is lifted upward and cools through expansion as it rises.
The boundary layer is not moving fast enough to balance the pressure gradient and so its path is partly downstream and partly across the stream from the concave bank toward the convex bank, driven by the pressure gradient.
The upper portion of a cumulonimbus cloud that becomes flat and spread-out, sometimes for hundreds of miles downstream from the parent cloud. It may look smooth or fibrous, but in shape, it resembles a blacksmith's anvil.
EXIT REGION- Region of a trough or jet streak where the winds leave the feature. This is the downstream region from the trough axis or jet streak center. ...
wake - The region of turbulence immediately to the rear of a solid body in motion relative to a fluid. Under certain conditions a series of vortices may form in the wake and extend downstream; ...
Delta The fan-shaped area at the mouth or lower end of a river, formed by eroded material that has been carried downstream and dropped in quantities larger than can be carried off by tides or currents.
The part of a valley or canyon wall against which a dam is constructed. Right and left abutments are those on respective sides of an observer looking downstream.
Abutment Seeping ...
Warnings are statements of imminent danger and are issued for relatively small areas near and downstream from the severe storm or flood. For example, Tornado Warning, Severe Thunderstorm Warning, Flash Flood Warning, Winter Storm Warning.
The lake behind the dam was about 20 or 30 feet below the spillway. Officials from the corps or the Delaware River Basin Commission could not estimate how much flooding the dams prevented downstream.
 See also: Weather, Surface, Air, Cloud, Pressure
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