- Branche: Earth science
- Number of terms: 93452
- Number of blossaries: 0
- Company Profile:
Founded in 1941, the American Congress on Surveying and Mapping (ACSM) is an international association representing the interests of professionals in surveying, mapping and communicating spatial data relating to the Earth's surface. Today, ACSM's members include more than 7,000 surveyors, ...
The radius of that circle within which a specified percent of the errors in horizontal location occur on a map.
Industry:Earth science
Photography taken at the same time that the location and orientation of the camera are obtained from an inertial-navigation system and recorded. The method has been used in taking aerial photographs.
Industry:Earth science
The pressure exerted by a force of 1 Newton on an area of 1 square meter. It is a unit of pressure and is equal to 10 dynes per square centimeter or to 105 bars.
Industry:Earth science
An instrument for measuring the area of a planar figure mechanically, by tracing the perimeter of the figure. Alternatively, an instrument which serves to determine the value of a definite integral mechanically by tracing the line which represents the function to be integrated. The curve need not be smooth but it must be smooth. The planimeter consists, in its simplest form, of a rod and the tracing arm, on one end of which is mounted the stylus which follows the perimeter. The other end of this arm may be constrained to motion along a straight line or it may be made to move in a circular path by being joined by a hinge to one end of another rod, the polar arm, whose other end is fix (to a pivot). The first form is called a linear planimeter; the second form is called a polar planimeter. Other common forms are the rolling planimeter and the suspended planimeter. The one most often used for calculating areas of regions on maps is the polar planimeter.
Industry:Earth science
(1) The motion of a celestial object relative to a group of objects of the same kind. (2) That part of proper motion which is caused by a star's own motion as distinguished from the observer's motion.
Industry:Earth science
A small distance applied to the length of a meridian to create the curves of the top and bottom latitudes of a graticule.
Industry:Earth science
A more or less irregular surface representing the upper limit of permafrost.
Industry:Earth science
Pressure exerted at any point upon a confined liquid is transmitted undiminished in all directions.
Industry:Earth science
The investor's goals expressed in terms of risk and return and included in the policy statement.
Industry:Earth science
