Physical Geography
Dominique Steinbach, tool coordinator and software developer, University of Basel, Switzerland
Formal description of physical geography, general subclasses, related classes, and properties.
Universities of Basel, Bern, and Zürich, Switzerland
2020-06-11
Hans Cools, MD, knowledge engineer, ontologist, software developer, University of Basel, Switzerland
earth place has name literal
Ort auf Erde hat Namenliteral
Relating a place on Earth to its name literal.
earth place has identifier literal
Ort auf Erde hat Identifikatorliteral
Relating a place on Earth to its identifier literal.
Relating a place of a point or space on the Earth's surface to its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface.
has elevation
hat Höhenmeter
hat Längengrad
has longitude
Relating a place of a point or space on the Earth's surface to its geographic coordinate specifying the east-west position of that point, based on the World Geodetic System (WGS) standard. The coordinate is expressed as the angle in the equatorial plane between a meridian plane containing the surface point and a by convention allocated prime meridian plane at 0 degrees longitude. The IERS Reference Meridian is used here as prime meridian.
Points with the same longitude lie on a meridian or semi-circle between the poles. There are different longitudes, depending on the abstracted shape of the earth as spherical or ellipsoid, and other aspects. The decimal value can be converted to a sexagesimal using an N3 rule stating: [decimal degrees - (decimal degrees modulus (%) 1)]° [decimal degrees % 1 x 60 - decimal degrees % 1 x 60 % 1]' + [decimal degrees % 1 * 60 % 1 * 60]''
Relating a place of a point or space on the Earth's surface to its geographic coordinate specifying the north–south position of that point, based on the World Geodetic System (WGS) standard. The coordinate is expressed as the angle between the equatorial plane and the normal, for a sphere from the center, to the surface at that point.
Points with the same latitude lie on a circle around the Earth parallel to its equator. There are different latitudes, depending on the abstracted shape of the earth as spherical or ellipsoid, and other aspects. The decimal value can be converted to a sexagesimal using an N3 rule stating: [decimal degrees - (decimal degrees modulus (%) 1)]° [decimal degrees % 1 x 60 - decimal degrees % 1 x 60 % 1]' + [decimal degrees % 1 * 60 % 1 * 60]''
has latitude
hat Breitengrad
Place on earth, positionable using the World Geodetic System (WGS) standard.
place on Earth
Ort auf Erde