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Oceanic eddies are also usually made of water masses that are different from those outside the eddy. That is, the water within an eddy usually has different temperature and salinity characteristics to the water outside the eddy. There is a direct link between the water mass properties of an eddy and its rotation.
In high-volume water flows, holes can subtly aerate the water, enough to allow craft to fall through the aerated water to the bottom of a deep 'hole'. Some of the most dangerous types of holes are formed by low-head dams , and similar types of obstructions. In a low-head dam, the 'hole' has a very wide, uniform structure with no escape point ...
Coast – Area where land meets the sea or ocean; Coastal plain – Area of flat, low-lying land adjacent to a seacoast; Col – Lowest point on a mountain ridge between two peaks; Complex crater – Large impact craters with uplifted centres; Complex volcano – Landform of more than one related volcanic centre
This is an accepted version of this page This is the latest accepted revision, reviewed on 26 December 2024. Vortex or tornado occurring over a body of water For a pipe carrying water from a roof, see Downspout. For regrowth on trees, see Water sprout. For the performance act of regurgitating fluids, see Water spouting. A waterspout near Thailand in 2016 Part of a series on Weather Temperate ...
The Doña Ana County Flood Commission in the U.S. state of New Mexico defines an arroyo as "a watercourse that conducts an intermittent or ephemeral flow, providing primary drainage for an area of land of 40 acres (160,000 m 2) or larger; or a watercourse which would be expected to flow in excess of one hundred cubic feet per second as the result of a 100 year storm event."
Rotating masses of water called eddies are common in the ocean. The newly revealed pairs, however, churn through the water up to ten times faster than their single counterparts, and are connected ...
An overflow of water which submerges land that is usually dry. Flooding may occur when water bodies such as rivers, lakes, or oceans escape their boundaries by overtopping or puncturing levees, or it may occur when precipitation accumulates on saturated ground more rapidly than it can either infiltrate or run off. flumen. Also beaver's tail. fog
Area of occurrence: North America (particularly in central and southeastern regions of the United States colloquially known as Tornado Alley), South Africa, much of Europe (except most of the Alps), western and eastern Australia, New Zealand, Bangladesh and adjacent eastern India, Japan, the Philippines, and southeastern South America (Uruguay and Argentina)