- 行业: 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, ...
(1) A line of levels, a series of lines of levels, or a combination of lines or parts of lines of levels that, together with a continuous series of measured differences of elevation, extends continuously from a starting point through a sequence of intermediate points back to the starting point. (2) The set of consecutive measurements of distances and directions from a starting point to a remote point and back to the starting point.
Industry:Earth science
The meridian of 97<sup>o</sup> 27' 28. 4" west longitude. All Dominion Land Surveys are based on this meridian.
Industry:Earth science
A classification into 8 classes, as proposed by Tobler (1962), based on the functional relations required to determine either the Cartesian or polar coordinates in any given graticule.
Industry:Earth science
(1) A reproduction from a series of images. (2) A printer's proof made by exposing color separation negatives one after the other in register on a single sheet of photographic paper. It is used in checking and editing. It is also called a composite print.
Industry:Earth science
That image, of a pointlike source, whose largest diameter is the least of those of the other images of that point, for different distances of the focal plane. i.e., the smallest circle of confusion, as measured by the largest diameter of the image. The plane on which the circle of least confusion lies is often taken as the focal plane.
Industry:Earth science
As a boundary between states or nations, the main channel of a navigable stream is the deepest and most navigable channel as it was at the time the boundary was surveyed. The main channel of a non navigable stream was decided to be, in a particular case (boundary between Oklahoma and Texas, 1923) to be the median line between gradient lines on each bank.
Industry:Earth science
(1) The excess of the Earth's equatorial diameter over its polar diameter. (2) That part of the Earth lying outside a sphere having the Earth's polar diameter as its diameter.
Industry:Earth science
In Spanish law, a species of community in property enjoyed by husband and wife, the property being divisible equally between them on the dissolution of the marriage. The property does not include what they held as separate property at the time of contracting the marriage.
Industry:Earth science
