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A centimetre of water [1] is a unit of pressure. It may be defined as the pressure exerted by a column of water of 1 cm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity, so that 1 cmH 2 O (4°C) = 999.9720 kg/m 3 × 9.80665 m/s 2 × 1 cm = 98.063754138 Pa ≈ 98.0638 Pa, but conventionally a nominal maximum water density of 1000 kg/m 3 is used, giving ...
The mass of the oceans is approximately 1.35 × 10 18 metric tons, or about 1/4400 of the total mass of the Earth. The oceans cover an area of 3.618 × 10 8 km 2 with a mean depth of 3,682 m, resulting in an estimated volume of 1.332 × 10 9 km 3. [7]
The name "Long Lake" is common among Michigan's 11,037 inland lakes which cover 1,305 square miles (3,380 km 2) of inland water. [5] This should not be confused with the other current and former Long lakes in Michigan , including the one in the vicinity of Long Lake Township , which is near Traverse City on the opposite side of the Lower ...
Bathymetric chart – Map depicting the submerged terrain of bodies of water; Echo sounding – Measuring the depth of water by transmitting sound waves into water and timing the return; Hydrography – Measurement of bodies of water; National Irrigation Congress – Agricultural pressure group
It can also be simply explained as the depth below which the ground is saturated. The water table is the surface where the water pressure head is equal to the atmospheric pressure (where gauge pressure = 0). It may be visualized as the "surface" of the subsurface materials that are saturated with groundwater in a given vicinity.
Bathymeric charts showcase depth using a series of lines and points at equal intervals, called depth contours or isobaths (a type of contour line). A closed shape with increasingly smaller shapes inside of it can indicate an ocean trench or a seamount, or underwater mountain, depending on whether the depths increase or decrease going inward.
The high-water records were broken for several months in a row in 2020. [17] Historic low water Lake levels tend to be the lowest in winter. The normal low-water mark is 1.00 foot (30 cm) below datum (577.5 ft or 176.0 m). In the winter of 1964, Lakes Michigan and Huron reached their lowest level at 1.38 feet (42 cm) below datum. [16]
Belleville Lake is a fresh water artificial reservoir located mostly within Wayne County in the U.S. state of Michigan. [3] A very small portion extends west into Washtenaw County . [ 2 ] The lake was created from the construction of the French Landing Dam and Powerhouse along the Huron River in 1925.