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 first piece of information you need to determine elevation is the reference point or datum. This serves as the starting point for measuring height above or below a specific level, such as sea level or ground level.
A point of known elevation and location is called a benchmark. Benchmarks are established to provide a reference point for measuring heights and locations of other points in the area.
The common term for measuring land is surveying.
The word to describe the height above sea level of a geographic point is "elevation."
Elevation
The starting point for elevation is typically referred to as the base or ground level. This is the point from which the measurement of elevation or height above sea level begins.
When measuring motion, the starting point is referred to as the "initial position" or "reference point." This helps establish a baseline for measuring distance or displacement.
The first piece of information you need to determine elevation is the reference point or datum. This serves as the starting point for measuring height above or below a specific level, such as sea level or ground level.
the prime meridian is the starting point when measuring the longitude
the equator
Ernst Otto Beckmann is not known for having his own method for measuring the boiling point elevation. Beckmann used ebullioscopy, which is the method for measuring the boiling point elevation, and cryoscopy, which is the method for measuring freezing point depression, to determine molecular masses of objects. He invented a thermometer to differentiate between temperature differences and values. This thermometer is known as the Beckmann Thermometer.
A point of known elevation and location is called a benchmark. Benchmarks are established to provide a reference point for measuring heights and locations of other points in the area.
The starting point would be the equator. Lines of latitude run parallel to the equator.
For Latitude, the Equator is the zero point. For Longitude, the Prime Meridian at Greenwich UK, is the starting point of zero.
The total elevation gain of the hiking trail is the overall increase in height from the starting point to the highest point along the trail.
No, not all topographic maps have a 0 meter contour line as a starting point. The starting point for the contour lines on a map is typically determined by the elevation of the area being mapped. In some cases, the starting point may be a higher or lower elevation depending on the region being mapped.
The car starting point