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Height above mean sea level is a measure of a location's vertical distance (height, elevation or altitude) in reference to a vertical datum based on a historic mean sea level. In geodesy, it is formalized as orthometric height. The zero level varies in different countries due to different reference points and historic measurement periods.
This is a list of countries and territories by their average elevation above sea level based on the data published by Central Intelligence Agency, [1] unless another source is cited. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1.
The following is a list of the world's major cities (either capitals, more than one million inhabitants or an elevation of over 1,000 m [3,300 ft]) by elevation. In addition, the country, continental region, latitude and longitude are shown for all cities listed.
Housing development in the Tijuana Hills has led to eradication of many seasonal mountain streams. This lack of natural drainage makes places within the city vulnerable to landslides during the rainy season. The varied terrain of Tijuana gives the city elevation extremes that range from sea level to 790 meters (2,590 ft).
Height (m) Height (ft) Comments 1 La Rinconada Peru: 5101 16728 Highest city in the world, 30,000 inhabitants. [1] 2 Parinacota Chile: 4400 14435 Highest settlement in Chile. 3 Mina Pirquitas Argentina: 4340 14240 Highest settlement in Argentina. 4 Cerro de Pasco Peru: 4330 14232 Highest city of over 50,000 inhabitants (70,000). 5 Colquechaca ...
Pressure as a function of the height above the sea level. There are two equations for computing pressure as a function of height. The first equation is applicable to the atmospheric layers in which the temperature is assumed to vary with altitude at a non null lapse rate of : = [,, ()] ′, The second equation is applicable to the atmospheric layers in which the temperature is assumed not to ...
For example, if a station reports that the 500 mb [i.e. millibar] height at its location is 5600 m, it means that the level of the atmosphere over that station at which the atmospheric pressure is 500 mb is 5600 meters above sea level. This is an estimated height based on temperature and pressure data."
Aviation altitude is measured using either mean sea level (MSL) or local ground level (above ground level, or AGL) as the reference datum. Pressure altitude divided by 100 feet (30 m) is the flight level , and is used above the transition altitude (18,000 feet (5,500 m) in the US, but may be as low as 3,000 feet (910 m) in other jurisdictions).