Mean Sea Level - the height of the sea surface midway between its average high and low water positions ...
Mean Sea Level (MSL) The average height of the surface of the sea at a particular location for all stages of the tide over a 19-year period. This is usually determined from the hourly height readings of the tide gage at that site.
Mean Sea Level
(MSL) (1) The average sea surface level for all stages of the tide over a 19-year period, usually determined from the hourly heights observed above a fixed reference level. (2) In aerology, the reference surface for all altitudes.
mean sea level—The average height of the surface of the sea for all stages of tide; used as reference for elevations throughout the U.S.
Mean Sea Level (MSL)- The average height of the sea surface, based upon hourly observation of the tide height on the open coast or in adjacent waters that have free access to the sea.
MEAN SEA LEVEL
The average height of the sea surface water level.
Mean sea level pressure (MSLP or SLP) is the pressure at sea level or (when measured at a given height on land) the station pressure reduced to sea level by an appropriate altitude dependant formula.
Mean Sea Level. It is necessary to convert the pressure readings to equivalent mean sea level pressures, ...
MEAN SEA LEVEL (MSL) - The average height of the sea which is used as a reference for elevations in aviation.
MECHANICAL TURBULANCE - Turbulance created by obstacles near the ground as air passes close to them.
MSL - Mean Sea Level. Often used to describe altitude or elevation. Pressure altitude is measured in barometric units and is relative to MSL.
MSLP - Mean Sea Level Pressure. See also SEA LEVEL.
MSL- Mean sea level.
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NOAA- Natural Oceanic and Atmospheric Administration; parent agency of the National Weather Service in the Department of Commerce.
MSLP: Mean sea level pressure.
NCDC: National Climatic Data Center. Located in Asheville, North Carolina, the agency that archives climatic and forecast data from the National Weather Service.
MSLP - Mean sea level pressure.
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NCEP - National Centers for Environmental Prediction. Central computer and communications facility of the National Weather Service; located in Washington, DC.
In 1971 the mean sea level for 1966-1968 was assigned the value of zero on the Australian Height Datum at thirty tide gauges around the coast of the Australian continent.
The increase in mean sea level caused by the "piling up" of water on the coastline by wind.
Windward
Upwind, or the direction from which the wind is blowing: the opposite of leeward.
Refer to mean sea level. SEA LEVEL PRESSURE The atmospheric pressure at mean sea level, usually determined from the observed station pressure. SEA MILE A unit of length distinguished from a nautical mile.
Sea level pressure The atmospheric pressure at mean sea level either directly measured by stations at sea level or empirically determined from the station pressure and temperature by stations not at sea level.
sea level pressureThe atmospheric pressure at mean sea level.sensible heat fluxThe time rate of flow for the energy transferred from a warm or hot surface to whatever is touching it, typically air.
A trough on a mean sea level pressure chart, (or an upper air contour chart) can be picked out by an arrangement of isobars (contours) which are concave towards an area of low pressure (low contour height) along a particular axis, ...
Low-level clouds (0-2 km above mean sea level)
stratus (S) - extensive, shallow cloud sheet, often yielding drizzle or light rain ...
climatological station elevation"The elevation above mean sea level chosen as the reference datum level for all climatological records of atmospheric pressure in a given locality; not necessarily the same as station elevation.
This "zero" can be referenced (usually within ten feet of the bottom of the channel) to mean sea level, or to any other recognized datum.
NOAA National Weather Service - Cite This Source - This Definition ...
SEA LEVEL PRESSURE
The atmospheric pressure at mean sea level, usually determined from the observed station pressure.
SEA MILE
A unit of length distinguished from a nautical mile. One sea mile is equivalent to 1,000 fathoms (6,000 feet).
The heights are referenced to Mean Sea Level (MSL). A circular stair-step appearance often occurs due to echo beam top limitations.
Sea level pressure The atmospheric pressure at mean sea level.
Secondary air pollutants Pollutants that form when a chemical reaction occurs between a primary air pollutant and some other component of air.
Sea level pressure The atmospheric pressure at mean sea level.
Semiarid See Steppe.
Sensible heat transfer Movement of heat from one place to another as a consequence of conduction or convection or both.
Vertical distance of a point on or affixed to the surface of the ground, measured from mean sea level; contrast with altitude (1), which is a vertical distance of a point not necessarily affixed to the ground.
In meteorology, this often refers to the conversion of the observed value of an element to the value that it theoretically would have at some selected or standard level, usually mean sea level.
ELEVATION The measure of height with respect to a point on the earth's surface above mean sea level. Sometimes referred to as station elevation.
ALTIMETER SETTING
The pressure value to which an aircraft altimeter scale is set so that it will indicate the altitude above mean sea level of an aircraft on the ground at the location for which the value was determined.
In hydrologic terms, a reference "zero" elevation for a stream or river gage. This "zero" can be referenced (usually within ten feet of the bottom of the channel) to mean sea level, or to any other recognized datum.
ZFP
Zone Forecast Product ...
Mountain meteorology: meteorology of a mountainous or topographically complex area.MSL: above mean sea level.
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Sea Level The datum against which land elevation and sea depth are measured. Mean sea level is the average of high and low tides.
This is one of the most important formulas in meteorology and has been used for generations to standardize barometric pressure readings taken from all kinds of landscape elevations to mean sea level values.
The altitude above MSL indicated on the altimeter when set to a local altimeter setting.
Pressure Altitude:..The altitude in the atmosphere where the pressure is the same.
True Altitude:.........The actual altitude above "Mean Sea Level".
Although the pressure is referred to mean sea level, all other elements on this chart are presented as they occur at the surface point of observation.Surface-based ConvectionConvection occurring within a surface-based layer, i.e.
Quasi-nonhydrostatic (QNH) Pilots, air traffic control (ATC) and low frequency weather beacons use this pressure setting to refer to the barometric altimeter setting that causes the altimeter to read altitude above mean sea level within a certain ...
Cloud bases and tops are always Mean Sea Level (MSL) unless noted. Ceilings are always above ground level.
 See also: Sea level, Weather, Pressure, Temperature, Atmosphere
  
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