Search results
Results from the WOW.Com Content Network
In hydrology, crest is the highest level above a certain point (the datum point, or reference point) that a river will reach in a certain amount of time. This term is usually limited to a flooding event and from ground level.
A typical warning will state the forecast point covered by the warning, the current flood stage, the established flood stage, and the expected crest, which is issued by the River Forecast Center. The crest will usually occur at least six-seven hours after the start of the event and the flooding can be caused by heavy rain in the vicinity of the ...
Example graph of stream stages showing Action Stage, Flood Stage, Moderate Stage, Major Stage, and Record Stage on a river. Flood stage is the water level, as read by a stream gauge or tide gauge, for a body of water at a particular location, measured from the level at which a body of water threatens lives, property, commerce, or travel. [1]
Crest (hydrology), the highest level above a certain datum or reference point that a river will reach in a certain amount of time Crest (physics) , the section of a wave that rises above an undisturbed position
A crest is a point on a surface wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point of the wave. When the crests and troughs of two sine waves of equal amplitude and frequency intersect or collide, while being in phase with each other, the result is called constructive ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Since most of these devices operate by controlling the water surface elevation being stored or routed, they are also known as crest gates. In the case of flood bypass systems, floodgates sometimes are also used to lower the water levels in a main river or canal channels by allowing more water to flow into a flood bypass or detention basin when ...
Use the Sign-in Helper to locate your username and regain access to your account by entering your recovery mobile number or alternate email address.; To manage and recover your account if you forget your password or username, make sure you have access to the recovery phone number or alternate email address you've added to your AOL account.