- Industry: 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, ...
An optical system isolating a very narrow portion of the spectrum for viewing or recording, and allowing selection of the portion isolated.
Industry:Earth science
A relief map made by forming a plastic material into the desired shape.
Industry:Earth science
An aerial photograph taken with the optical axis of the camera as nearly vertical as possible, so that the resultant photograph lies approximately in a horizontal plane. The optical axis is usually kept within 5<sup>o</sup> of the vertical.
Industry:Earth science
(1) A township line or range line forming part of the perimeter of a surveyed region. (2) The controlling lines around the perimeter of an independent resurvey.
Industry:Earth science
(1) A committee composed of citizens appointed by the chief executive or legislative body of a city, village or other governmental body, whose purpose is to review plans for subdivision submitted to them for approval and to advise upon, approve or otherwise act upon such applications. (2) A staff of professional planners hired by one or more governmental organizations to develop comprehensive plans, review plans for subdivision, study matters having to do with planning and advise the governmental organization on such matters.
Industry:Earth science
A large body of salt water, or of inland seas surrounded by land, which may have one or more narrow openings to the ocean or to another sea.
Industry:Earth science
Information shown on a map or chart and calling special attention to something such as, a region considered dangerous.
Industry:Earth science
The product of the distance between two magnetic poles by the average strength of the poles' magnetic fields.
Industry:Earth science
The quantity (n-1) x 106, in which n is the index of refraction. For light traveling in air, the N-unit (written N) has a value of about 300.
Industry:Earth science
(1) That portion of the principal surface which lies sufficiently near the optical axis that it can be considered planar.
Industry:Earth science
