Elevation Angle angle of beam with respect to the ground
The second is the angle of the beam with respect to the ground; called the "elevation angle".
elevation of ivory point"Same as barometer elevation.
elevation"1.
elevation - 1. A measure (or condition) of height, especially with respect to the height of a point on the earth's surface above a reference plane (usually mean sea level), as "station elevation.
elevation
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.
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.
Elevation Angle The vertical pointing angle of the antenna. The WSR-88D antenna can vary from -1° to +60°.
elevation: vertical distance from sea level to a point affixed to the ground. The elevation of a mountain, for example, may be 10,000 feet.
Elevation The angle at which an antenna must be pointed above the horizon for optimal reception from a spacecraft.
Elevation
Elevated Convection
Convection occurring within an elevated layer, i.e., a layer in which the lowest portion is based above the earth's surface. Elevated convection often occurs when air near the ground is relatively cool and stable, e.
ELEVATION - Height of a mountain or terrain above sea level or MSL. Also a degree measure from 0 to 90 degrees of an apparent position above the horizon where 0 degrees is the horizon.
As elevation increases, fewer air molecules are above. Therefore, atmospheric pressure decreases with increasing altitude. The following relationship is a first-order approximation:
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The elevation here is slightly short of 1,000 ft. Visibility is about 30 miles.
The elevation in mountainous terrain where precipitation changes from rain to snow.
Sounding ...
Altitude- Elevation above sea level.
Anemometer- An instrument used to measure wind speed.
At the higher elevations of southeastern Australia snow often persists for weeks or months at a time. In most years there is enough snow above about 1500 metres for a viable ski industry.
Field elevation The officially designated elevation of an airport above mean sea level, taken as the highest point on any of the runways of the airport. Same as airport elevation.
Bankfull Stage/Elevation: An established river stage/water surface elevation at a given location along a river which is intended to represent the maximum water level that will not overflow the river banks or cause any significant damages from ...
It is used as a reference for elevations above and below. Refer to mean sea level. SEA LEVEL PRESSURE The atmospheric pressure at mean sea level, usually determined from the observed station pressure.
or more between peaks and lulls.G/KGGrams per KilogramGageIn hydrologic terms,
1) A device for indicating the magnitude or position of a thing in specific units, when such magnitude or position undergoes change, for example: The elevation of ...
Global warmingA theory that increased concentrations of greenhouse gases are causing an elevation in the Earth's surface temperature. Good visibilityMore than 10 kilometers.
Some evacuations of people and/or transfer of property to higher elevations. *Major Flooding* - extensive inundation of structures and roads. Significant evacuations of people and/or transfer of property to higher elevations.
Either of two colored luminous spots that appear at roughly 22 degrees on both sides of the sun at the same elevation. They are caused by the refraction of sunlight passing through ice crystals.
DrawdownIn hydrologic terms, the lowering of the surface elevation of a body of water, the water surface of a well, the water table, or the piezometric surface adjacent to the well, resulting from the withdrawl of water therefrom.
past climate analogs The reconstructing of past climates at a given locality from modern climatic conditions in a different elevation or latitudinal zone to infer past climatic conditions.
These volume scan strategies tell the radar how many elevation angles will be used during a single volume scan (a volume scan is the completion of a sequence of elevation angles), ...
lapse rateThe rate at which an atmospheric variable (usually temperature) decreases with elevation.latent heatThe heat that is either released or absorbed by a unit mass of a substance when it undergoes a change of state (e.g.
This dish has the capability to rotate 360 degrees in azimuth and up to 20 degrees in elevation allowing the radar to cover a huge volume of atmosphere.
The elevation of the Palmer Divide runs roughly between 6,000 and 7,500 feet, peaking at Monument Hill.
Radiosondes are generally designed to sample the atmosphere up to an elevation of 19 miles, at which point the balloon may burst and the instrument package released will parachute back to the Earth's surface.
Tilt Sequence - Radar term indicating that the radar antenna is scanning through a series of antenna elevations in order to obtain a volume scan.
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As elevation increases, fewer air molecules are present. Therefore, atmospheric pressure always decreases with increasing height. A column of air in cross section, measured from sea level to the top of the atmosphere, would weigh approximately 14.
If I had to make a recommendation, I would say that the wind instruments should be placed at an elevation of perhaps 10 m, on a slender pole, in an open area a distance of 100 m from any obstruction or building.
Air is cooler at higher elevations because it is farther from the warmth radiated from the Earth's surface...
normal lapse rate is a global average rate of temperature reduction with elevation (6.4 °C/1000 m) ...
A radar scanning strategy in which sweeps are made at successive antenna elevations (i.e., a tilt sequence), and then combined to obtain the three-dimensional structure of the echoes.
Heavy Snow- usually means snowfall of four air inches or more in twelve hours or less, or six inches or more in twenty-four hours or less in lower elevation; in higher elevations it means twelve inches or more in twelve hours or less, ...
CEILOMETER An instrument that is used to measure the angular elevation of a projected light on the base of a cloud.
An instrument that is used to measure the angular elevation of a projected light on the base of a cloud. It measures the angle of the cloud base included by the observer (or machine), the ceiling light and the illuminated spot on the cloud.
Contour line A line that connects points of equal elevation above a reference level, most often sea level.
Contrail (condensation trail) A cloudlike streamer frequently seen forming behind aircraft flying in clear, cold, humid air.
sea level: the imaginary line from which sea depth and land elevation are measured.
stratosphere: region between the troposphere and mesosphere, extending from 10 to 30 miles above the Earth's surface.
(return to top)T ...
VCP - an acronym for Volume Coverage Pattern. The VCP is the sequence of elevation angles that a NEXRAD radar is programmed to use to scan the atmosphere. The NEXRAD operator can choose to scan using one of four possible VCPs.
Jet stream - fast moving, high elevation stream of wind.
Lake effect storm - small but intense snowstorm downwind of an open lake.
Altimeter An aneroid barometer calibrated to read in altitude or elevation.
Altocumulus clouds (Ac) Middle clouds consisting of roll-like patches or puffs forming a wavy pattern.
OROGRAPHIC- Air flowing from one elevation to another due to forced lifting or sinking due to the slope of the land surface (i.e. orographic uplift) ...
Parhelion or Parhelia (plural) : A bright, colored portion of a solar halo which forms on points 22° either side of the sun and at the same elevation. These luminous spots are caused by the refraction of light by ice crystals.
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.
The rate of decrease of temperature with elevation. It is most often measured with a radiosonde.
Equilibrium vapor pressure(6) ...
It is created when air flows downhill from a high elevation, raising the temperature by adiabatic compression. Examples include the Chinook wind and the Santa Ana wind. Classified as a katabatic wind. (Weather Channel Glossary) ...
Environmental lapse rate The rate of decrease of temperature with elevation. It is most often measured with a radiosonde.
Lapse rate: the rate of decrease of air temperature with increase of elevation vertically above a given location.
altimeter setting—The value to which the scale of a pressure altimeter is set so as to read true altitude at field elevation.
It is associated with the location and motion of the high and low pressure areas of the middle latitudes, and therefore, is variable in position, elevation, and wind speed.
After sunrise, incoming solar radiation counteracts this loss of heat, but only after a lag - which can be up to an hour or so in winter with a low solar elevation.
 See also: Weather, Temperature, Atmosphere, Water, Surface
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