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A surface-advected plume has the typical structure of a river plume as described in the section river plume structure. In the region near the mouth the initial momentum of the river outflow is the dominant mechanism, after which other processes such as wind forcing and the Coriolis effect take over.
An atmospheric river (AR) is a narrow corridor or filament of concentrated moisture in the atmosphere. Other names for this phenomenon are tropical plume, tropical connection, moisture plume, water vapor surge, and cloud band. [1] [2] Composite satellite photos of an atmospheric river connecting Asia to North America in October 2017
The definition: An atmospheric river (AR) is a long plume of moisture that stretches from the tropics or subtropics into higher latitudes, often thousands of miles long. These thin ribbons of ...
A river plume embedded into a ROFI reproduce a continuous process of transformation of freshwater discharge. Initially, river discharge enters the shelf sea from a river mouth and forms a sub-mesoscale (with spatial extents ~1-10 km) or mesoscale (with spatial extents ~10-100 km) water mass referred to as a river plume.
Plume shapes can be influenced by flow in the ambient fluid (for example, if local wind blowing in the same direction as the plume results in a co-flowing jet). This usually causes a plume which has initially been 'buoyancy-dominated' to become 'momentum-dominated' (this transition is usually predicted by a dimensionless number called the ...
This atmospheric river plume of moisture is known as the "Pineapple Express" because of its connection to Hawaii. The second system is now approaching the West Coast. Current Precipitable Water
Some varieties of flumes are used in measuring water flow of a larger channel. When used to measure the flow of water in open channels, a flume is defined as a specially shaped, fixed hydraulic structure that under free-flow conditions forces flow to accelerate in such a manner that the flow rate through the flume can be characterized by a level-to-flow relationship as applied to a single head ...
The plume is initially laminar, but transition to turbulence occurs in the upper third of the image. The image was made by Gary Settles using a one-meter-diameter schlieren mirror. The general form for the Reynolds number flowing through a tube of radius r (or diameter d ):