Swash consists of two phases: uprush (onshore flow) and backwash (offshore flow). Generally, uprush has higher velocity and shorter duration than backwash. Onshore velocities are at greatest at the start of the uprush and then decrease, whereas offshore velocities increase towards the end of the backwash. The direction of the uprush varies with the prevailing wind, whereas the backwash is always perpendicular to the coastline.
|
|
That something can even produce an uprush of joy as one dies.
|
|
Turning, his eyes widened in horror as he saw an uprush of bubbles.
|
|
No physical pain has ever matched that morning's uprush of killing fear, the hammering heart.
|
|
In this uprush of spirit, her red hair seemed even to bristle and to glisten.
|
|
The uprush or swash of water carries a highly corrosive load of sand, gravel, and cobbles.
|
|
The onshore and offshore sediment transport by swash thus plays a significant role in accretion and erosion of the beach. There are fundamental differences in sediment transport between the uprush and backwash of the swash flow. The uprush, which is mainly dominated by bore turbulence, especially on steep beaches, generally suspend sediments to transport. Flow velocities, suspended sediment concentrations and suspended fluxes are at greatest at the start of the uprush when the turbulence is maximum.
|
|
They came down towards him, fitfully, eddyingly, and passed aside out of the uprush from the fan.
|
|
So, hard upon the uprush of the first German air-fleet, these Asiatic swarms took to the atmosphere.
|
|
Jenna closed her eyes, light dancing around her, her long hair blowing backwards from a sudden uprush of air.
|
|
It was the first uprush of the strong rising tide, and they might yet be carried to a deep-water landing.
|
|
But the follower's wing tip chases the leader's along the same path and thus catches the vortex's helpful uprush of air.
|
|
Wave run up is the uprush of water from wave action on a shore barrier intercepting the 100-yearreturn period water level.
|
|
I must bear witness to my conviction that we are beholding a tremendous inrush or uprush of good into man and his world.
|
|
The beachface is the planar, relatively steep section of the beach profile that is subject to swash processes (Figure 2). The beachface extends from the berm to the low tide level. The beachface is in dynamic equilibrium with swash action when the amount of sediment transport by uprush and backwash are equal. If the beachface is flatter than the equilibrium gradient, more sediment is transported by the uprush to result in net onshore sediment transport.
|
|
The fall of the water, the expanding, towering uprush, the fillets, the side jets, the base surge and the fallout are compounded in an awful nuclear sublime, from which it is hard to drag oneself away.
|
|
He appears to be on the ropes, although at the same time he is the beneficiary of an uprush of public support and may be contemplating an auction for his future services that will make him richer still.
|
|
Made in the same way as all the others, but cast in ice-blue resin, Elegantka II resembles some kind of climatic uprush, something like a small tornado, yet also like a vertical glacier rising out of the earth.
|
|
Figure 3. Beach cusp morphology. Uprush diverges at the cusp horns and backwash converges in the cusp embayments. (Modified from Masselink & Hughes 2003) The beach cusp is a crescent-shaped accumulation of sand or gravel surrounding a semicircular depression on a beach.
|
|
The height of the berm is governed by the maximum elevation of sediment transport during the uprush. The berm height can be predicted using the equation by Takeda and Sunamura (1982) : Zberm=0.125Hb^{5/8}(gT^2)^{3/8}, where Hb is the breaker height, g is gravity and T is the wave period.
|
|
As ocean surface waves come closer to shore they break, forming the foamy, bubbly surface called surf. The region of breaking waves defines the surf zone. After breaking in the surf zone, the waves (now reduced in height) continue to move in, and they run up onto the sloping front of the beach, forming an uprush of water called swash. The water then runs back again as backswash.
|
|
By Sunday afternoon, 18 hours after the alarm was raised in Pudding Lane, the fire had become a raging firestorm that created its own weather. A tremendous uprush of hot air above the flames was driven by the chimney effect wherever constrictions narrowed the air current, such as the constricted space between jettied buildings, and this left a vacuum at ground level. The resulting strong inward winds fueled the flames.See firestorm and Hanson (2001), 102–05.
|
|
When the gas bubble collapses, the hull will tend to fall into the void in the water, creating a sagging effect. Finally, the weakened hull will be hit by the uprush of water caused by the collapsing gas bubble, causing structural failure. On vessels up to the size of a modern frigate, this can result in the ship breaking in two and sinking. This effect is likely to prove less catastrophic on a much larger hull, for instance that of an aircraft carrier.
|
|
During World War II, on 26 November 1942, one engine, number 2365, was working an afternoon New Romney to Ashford passenger train through the Romney Marshes near Lydd when she was attacked by a low-flying German fighter aircraft. Cannon fire from the plane caused the dome on the top of the engine's boiler to burst, but no railway staff or passengers were hurt. Either by actual contact as he misjudged his dive, or in the sudden uprush of steam from the boiler, the pilot lost control of his plane and, as it crashed, he was flung out and drowned in a dyke. The engine was reboilered and returned to service on the New Romney branch early the following year.
|
|