It means the same thing.
A contour line (also isoline or isarithm) of a function of two variables is a curve along which the function has a constant value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level
the distance between mean sea level and any given contour line
the closer the lines are the steeper the ground because each line signifies a different height above sea level.
The change in the elevation between isolines is called a contour line. Contour lines on a topographical map resemble a volcano.
All points on a contour line represent locations with the same value of the variable being plotted, such as elevation or temperature. Each contour line indicates a specific level or value of the variable, and points on the line have that exact value.
A contour line below sea level is called a bathytherm.
On a map, a contour line connects points of the same height below or above sea level. The elevation would stay the same if you followed a contour line.
A line on a map joining points of equal height above or below sea level.
shows the elevation above sea level.
Isobar for atmospheric pressure, isotherm for temperature, or contour for height above (below) sea level.
This is a long line of rocks or sand, the top which can be above or below the sea level.
A contour line (also isoline or isarithm) of a function of two variables is a curve along which the function has a constant value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level
contour are imaginary lines that drawn on a map joining places having the same height above mean sea level.
A contour line represents a certain vertical height above the the contour line shown drawn below. Contour lines are a means of representing 3D hills and mountains on a 2D flat paper. Maps should show the height between contour lines: 50 metres between contour lines is common.
Contour lines are spaced at a regular height above sea level - every 50 metres, for example. The highest point of a hill may be just above the highest contour line. Therefore a spot or summit height symbol may be used to mark the highest point on the map.
A contour line represents a certain vertical height above the the contour line shown drawn below. Contour lines are a means of representing 3D hills and mountains on a 2D flat paper. Maps should show the height between contour lines: 50 metres between contour lines is common.
When a V-shaped contour line points downhill, it means that the contour line is under very low elevation. And incase your wondering about when the contour line is uphill, it means that the elevation level is very high.