What does hypsography mean?
Hypsography is the art or science of representing elevation and landform on maps and charts. Its most familiar application is the use of contour lines, each joining points of equal height, to show slopes, ridges, valleys, plateaus, and other features of relief. Shading, hachures, and other visual techniques may also supplement this information. The word is related to hypsometry, but the two terms are not exact synonyms: hypsometry is principally concerned with measuring elevation, whereas hypsography emphasizes the description and cartographic representation of differences in height. Geographers may also use hypsography when examining how relief influences climate, vegetation, drainage, settlement, and human movement. Although "topography" is more widely understood, hypsography remains a precise and useful term in cartography and physical geography, especially when referring specifically to the graphic representation of elevation.
nounThe art or technique of representing the elevation and relief of the earth's surface on maps, especially through contour lines. The term is also used more broadly for the study and description of differences in height.
- The art or method of depicting the heights, slopes, and relief of the earth's surface on maps, particularly with contour lines.
- The study or description of the elevation and distribution of landforms.
"Careful hypsography allows a climber to recognize steep slopes and narrow passes at a glance."
"The map's hypsography clearly shows the ridge running between the two valleys."
"Geographers use hypsography to analyze how elevation affects climate, settlement, and drainage."
The plural is uncommon, as the term is normally used as a mass noun for the field or method.
"Detailed hypsographies reveal the structure of the surrounding mountain range."
Hypsography is how mountains leave their contours on the page: every closed loop records a level, turning rugged terrain into readable lines.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does hypsography come from?
The word comes from Greek hýpsos, meaning "height," and the combining form -graphia, derived from graphein, "to write." It thus literally refers to writing or describing height. The same Greek elements underlie related terms such as hypsometer, an instrument for measuring altitude, and hypsometry, the measurement of elevation.
Related word forms
How hypsography is actually used
This is a specialized term used mainly in cartography, geography, surveying, and physical geography. It is less common than the broader terms "topography" and "relief mapping."
Easily confused with hypsography
Hypsometry is the measurement of elevation, whereas hypsography is the cartographic representation of elevation and landform.
Orography refers to the study or description of elevated landforms, while hypsography specifically concerns their representation on maps.