Millibar - A pressure unit of 1000 dynes cm-2, often used for reporting atmospheric pressure where one millibar equals 1 hectopascal (hPA).
Millibar(mb) A unit for expressing atmospheric pressure. Sea level pressure is normally close to 1013 mb.
millibar (abbreviated mb.)—An internationally used unit of pressure equal to 1,000 dynes per square centimeter. It is convenient for reporting atmospheric pressure.
mist—A popular expression for drizzle or heavy fog.
Millibar (mb) One thousandth of a bar, a unit of atmospheric pressure. The average atmospheric pressure at sea level is 1.01325 bars or 1013.25 mb. See pascal (Pa), atmospheric pressure.
Millibar. The metric measurement of air pressure. A millibar is 1000 dynes per square centimeter, or 100 pascal (Pa). Surface pressure averages around 1013 millibars.
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Millibar- A metric unit of air pressure measurement.
Monsoon- A wind that in summer blows from the sea to a continental interior, bringing copious rains.
Millibar
The old unit used to measure barometric pressure. Replaced by hectoPascal.
Moderate breeze ...
1 millibar (or hectopascal/hPa), is equivalent to 0.02953 inches of mercury (Hg). It is therefore only necessary to multiply a reading in millibars by the latter figure, to achieve the required conversion. E.g. for 1023 mbar, multiply by 0.02953=30.
850 Millibar Chart. Approximately 5,000 feet above sea level.
1. "Green"shaded areas indicate areas where the temperature - dew point depression is less than 5 degrees Celsius, and are areas of high moisture content.
2.
500 millibar level height (in a standard atmosphere this is near 5,500 meters (18,000 ft)
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Browse Related Terms: angstrom (Å), H7, H8, Hectopascal, HPA, MB, Micron, Millibar ...
500 millibar level height (in a standard atmosphere this is near 5,500 meters (18,000 ft)
H7
height of the 700 millibar level. In a standard atmosphere this is near 3,000 meters (10,000 ft) ...
bar, millibar.
kilogram-force, or kilopond, per square centimetre (technical atmosphere).
gram-force and tonne-force (metric ton-force) per square centimetre.
barye (dyne per square centimetre).
kilogram-force and tonne-force per square metre.
To convert millibars (mb) to inches of mercury (in Hg), divide the millibar reading by 33.86:
in Hg = mb / 33.
Mid-Latitudes- The areas in the northern and southern hemispheres between the tropics and the Arctic and Antarctic circles.
Millibar- A metric unit of atmospheric pressure. 1 mb = 100 Pa (pascal).
It is determined by lifting an air parcel to 500 millibars and then comparing its temperature to that of the environment. If the parcel is colder than its new environment, then the atmosphere is more stable.
01 millibar. Pascal's law A hydrostatic principle that pressure supplied to an enclosed fluid is transmitted undiminished to every portion of the fluid and to the walls of the containing vessel.
hPaHectopascal- A unit of pressure equal to a millibar (1 hPa = 1 mb).
- The temperature a parcel of air would have if
a) it was lifted until it became saturated,
b) all water vapor was condensed out, and
c) it was returned adiabatically (i.e., without transfer of heat or mass) to a pressure of 1000 millibars.
Reference is usually made to the manually produced 6- to 10-day Northern Hemisphere prognoses for mean 500 millibar heights and mean 500 millibar height anomalies. Discussions may also refer to the method of operational ensemble predictions.
Pressure is usually measured in millibars, 1 mb = 103 dyne/cm2. Distance is conveniently measured in the length of a degree of latitude, which is 111 km or 69 mi. Then, a pressure gradient of 1 mb per degree of latitude is 8.993 x 10-5 dyne/cm2/cm.
BNBlowing SandBNDRYBoundaryBombPopular expression of a rapid intensification of a cyclone (low pressure) with surface pressure expected to fall by at least 24 millibars in 24 hour.
The most common unit used is the millibar (1 millibar equals 1000 dynes cm−2).
The layer most often used in meteorology is between 1000 and 500 millibars.
2 millibars (mb), dew will form when the ground reaches 45 degrees Fahrenheit (F). The relative humidity for air containing 10.2 mb of water vapor is simply 100% times 10.2 mb divided by the saturation vapor pressure at the actual temperature.
A measure of the mass of air above a given point. Usually expressed in millibars (mb) or hectopascals (hPa). Also known as atmospheric or barometric pressure (pressure measured by a barometer).
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Standard atmospheric pressure A pressure of 1013.26 millibars (mb), 29.92 inches of mercury (Hg), 760 millimeters (mm) of mercury, 14.7 pounds per square inch (lb/in.2), 101,326 pascals (Pa).
BAROMETER - Instrument used to measure the pressure of the air. Common units are MILLIBARS (MB) and INCHES of mercury (IN/Hg).
PRESSURE: The force exerted by the weight of air above a given point, usually expressed in millibars (mb) or inches of mercury (in. Hg).
Barometer - An instrument used to measure air pressure. The international standard of measurement is the kilopascal although millibars and inches of mercury are also commonly used.
Air density Mass per unit volume of air; about 1.275 kg per cubic meter at 0 ·C and 1000 millibars.
barometer, as a consequence of gravitational attraction, or equivalently, the force exerted by molecules of air acting on a unit area of any surface. See also station pressure and sea level corrected pressure. The units of pressure are the millibar, ...
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