bench mark
The height above sea level of any point on Earth's surface is called its elevation.
Elevation
Elevation is measured from Mean Sea Level, or MSL. That's the average vertical point where the Earth's seas meet land. In theory, that would be a common level throughout the Earth. In reality, there are many variations, complicated further by the fact that the Earth is not a perfect sphere. A standard coordinate frame for the Earth called the World Geodetic System is gradually gaining acceptance. Its use would assure consistency in elevation measurements. Increasingly GPS (global-positioning satellite) measurement of elevation is being used, resulting in changes in some long-known elevation numbers. For example, Colorado's famous Pikes Peak has "always" been known to have a summit elevation of 14,110 feet, but it was recently remeasured at 14,115 feet.
The optical horizon is the point at which the sky appears to meet the Earth's surface when viewed from a specific location. It is also known as the visible horizon and may be affected by factors such as elevation and atmospheric conditions.
well elevation is the distance in a particular location between the surface and where the surface of the sea would be at a 90 degree angle measurement (if up to sea level then it's a negative elevation, down to sea level it's a positive elevation). So the elevation of a city would either be the lowest or highest natural (not manmade like a building) point in the city or the average elevation of the city(i'm pretty sure it's this) or the average of the lowest and highest point in the city.
The reading on a leveling rod held at a point of known elevation is called a backsight reading. This reading is used as a reference point to determine the elevation of other points during leveling surveys.
Elevation. "The elevation of a geographic location is its height above a fixed reference point, often the mean sea level."
Elevation. "The elevation of a geographic location is its height above a fixed reference point, often the mean sea level."
Elevation. "The elevation of a geographic location is its height above a fixed reference point, often the mean sea level."
Elevation. "The elevation of a geographic location is its height above a fixed reference point, often the mean sea level."
Elevation. "The elevation of a geographic location is its height above a fixed reference point, often the mean sea level."
To determine the lowest possible elevation of point B, we need additional context such as the geographic location, surrounding topography, or specific parameters defining point B's relationship to other points. If point B is at a specific location in a mountainous region, for example, its lowest elevation could be influenced by nearby valleys or features. Without this information, it's impossible to accurately provide the lowest elevation of point B.
The geographical term for heights is elevation. Elevation is the vertical distance of a location above a reference point, such as sea level.
The height above sea level of any point on Earth's surface is called its elevation.
Elevation. "The elevation of a geographic location is its height above a fixed reference point, often the mean sea level."
Illinois does not have mountains. It is known as the Prairie State for a reason. The highest point is a hill called Charles Mound which has elevation 1235 feet.
Boiling point elevation