To calculate the atmospheric pressure using the height of the mercury column in a barometer, we can follow these steps:1. Identify the given values: - Height of the mercury column (Hm) = 760 mm - Density of mercury (ρm)
How does the atmospheric pressure change with increase in height above the sea level? View Solution An altimeter is an aneroid barometer which makes use of the change in atmospheric pressure with the change in height above the sea level (altitude). What is the approximate value of atmospheric...
The height of smallest change is near 85 km. The largest January and July departures from standard occur near 65 km in the arctic where the minimum January value is 65 percent of standard and the maximum in July is 130 percent of standard. A pressure increase near 60 km of more than ...
In the homosphere each gas exerts a partial pressure, the product of the total atmospheric pressure and the concentration of the gas. Thus as oxygen represents about 21% of the composite gases, the partial pressure of oxygen is about 21% of the atmospheric pressure at any altitude within the...
1. Low pressure troughs tend to move toward the region of greatest height falls 2. Ridges build most strongly into regions with the greatest height rises
Millibar, unit of air pressure in the metric system, commonly used in meteorology, equal to 100 pascals, 1,000 dynes per square cm (about 0.0145 pounds per square inch), or slightly less than one-thousandth of a standard
Atmospheric pressure forces the mercury to rise up the tube. At sea level, the column of mercury will rise (on average) to a height of 29.92 inches or 760 millimeters. Why not use water instead of mercury? The reason is that at sea level, the water column would be about 34 feet ...
Precisions on measurements are usually about 0.5°C for temperature, 0.5 hPa for pressure and about 2% for relative humidity. In addition to ground-based weather stations, measurements of the height-dependent profiles of state variables are needed to well estimate atmospheric effects up to the top...
When one type of air mass overlies another, conditions change with height. Characteristics typical of an unstable air mass are: cumuliform clouds, showery precipitation, rough air (turbulence), and good visibility. Characteristics of stable air include: stratiform clouds and fog, continuous ...
due to the particle surface tension, saturatedvapor pressureand the difference of physical and chemical properties, water vapor cannot condensate on its surface and the corresponding size of aerosol particles has no significant change, so the particle shows no apparent hygroscopic growth characteristics,...