millibar


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millibar

a cgs unit of atmospheric pressure equal to 10--3 bar, 100 newtons per square metre or 0.7500617 millimetre of mercury

millibar

[′mil·ə‚bär]
(mechanics)
A unit of pressure equal to one-thousandth of a bar. Abbreviated mb. Also known as vac.

millibar

A unit of measurement of pressure. In the standard atmosphere, air exerts a pressure of one bar at sea level. A bar is equal to 106 dynes per square centimeter. One bar = 1000 millibars = 750.8 mm Hg = 29.53 in Hg. The average sea level pressure is 1013.2 millibars or 29.92 in of mercury. Altimeter settings used to be given in millibars but now are more likely to be given in hPa (hectopascals). The values of millibars and hectopascals are the same.
References in periodicals archive ?
Even taking into account the questionable accuracy of the fitting functions, the values of the disturbing force explain "ad abundantiam" why the region of the intermediate pressures between millibar and nanobar was avoided by the experimenters.
Sparks at this pressure with pressure of 1018 millibars has been developed over Tehran and even has reached to Eastern parts of Iran which due to making temperature inversion and lack of air ventilation in lower layers, weather of the region will be entirely sustainable and the pollution will relatively be high, which in graph 5, amount of pollution at some stations for 9 November 2009 have been shown.
To create wind direction maps for Africa [using National Centers for Environmental Prediction-National Center for Atmospheric Research (NCEP-NCAR) Reanalysis Project database and software (NOAA NCEP-NCAR 2006], we used mean monthly sea level pressure [SLP; in millibars (mb)] and mean monthly geopotential values for three altitude levels: 1,000 mb (150 to ~ 200 m), 925 mb (700 to ~ 800 m), and 850 mb (~ 1,500 m) covering the whole African continent (NOAA NCEP-NCAR 2005).
During a similar event in 1998 a temporary weather station near the top of Everest recorded a sudden fall in pressure of 16 millibars.
Category Barometric Winds Pressure 1 Above 980 118 to 153 millibars kilometers per hour (74 to 95 miles per hour) 2 965 to 979 154 to 177 millibars kilometers per hour (96 to 110 miles per hour) 3 945 to 964 178 to 209 millibars kilometers per hour (111 to 130 miles per hour) 4 920 to 944 210 to 250 millibars kilometers per hour (131 to 155 miles per hour) 5 Below 920 More than 250 millibars kilometers per hour (155 miles per hour) Category Storm Damage Surge 1 1.
The top two panels of the figure, sea level pressure in millibars, show an example of regional shifting climatic patterns.
The lowest pressure of 949 millibars was over Edinburgh, but the greatest official wind speed of all was 107mph recorded at Aberporth Met Office , near us at Gwbert.
For every drop in atmospheric pressure of 10 millibars, the risk of DVT rose two per cent.
The record-breaking barometer reading of 951 millibars was taken yesterday in East Yorkshire.
Seismologists have assumed that faults would not budge unless stresses jumped or dropped by more than 100 millibars, yet the variations in atmospheric pressure are only one-tenth that figure, say Gao and Silver.
Key New Features: -- Heads Up Display -- Customize your maps and use the heads up display to control terrain settings (road or aerial), overlay (radar or satellite with radar), opacity, and play/pause loop (much faster over Edge) -- Time Stamp on Radar -- View the time stamp of the radar and satellite loop in the heads up display -- Animated Satellite -- View animated satellite with radar -- Data Caching -- View previously cached weather conditions when a network connection is not available -- Unit Conversion -- Choose inches or millibars of pressure or Celsius or Fahrenheit temperature -- Notification alert when there is a loss of network coverage (cellular or WiFi)
Professor Philippe Amouyel, an epidemiologist at Lille University School of Medicine, who led the study, said: "When atmospheric pressure rose by 10 millibars above sea level there was an 11 per cent increase of heart attack rates, and when pressure dropped by 10 millibars there was a 12 per cent increase.