Question: What is Full Form of MSL?
Answer: The datum for measuring elevation as well as altitude would be “Mean Sea Level” (MSL).
“Mean Sea Level” refers to the Earth’s imaginary horizontal surface as given by this WGS84 geoid.
The median elevation of this sea during high as well as low tide has been measured as median sea level. This is not reliant on just about any one location, whether within India or elsewhere. All altitudes have been measured from median sea level, this serves as a global reference point.
Median sea level seems to be a worldwide metric that serves as a starting point for calculating heights as well as elevations. This is calculated at any given location by averaging actual hourly tidal levels over this 19-year timeframe.