- 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, ...
A photograph used in photogrammetry. The term is little used and there seems to be little justification for its use.
Industry:Earth science
An aerial photograph taken with the optical axis of the camera deliberately pointed away from the vertical. Vertical photographs are usually taken with the optical axis of the camera kept within 5<sup>o</sup> of the vertical. Oblique photographs could therefore be defined as photo-graphs taken with the optical axis more than 5<sup>o</sup> from the vertical.
Industry:Earth science
An assemblage of aerial photographs brought to a common scale by printing each photograph to a scale obtained by measuring distances on a map and making corresponding distances on the mosaic true to scale.
Industry:Earth science
A circle, on the celestial sphere, all points of which have the same celestial latitude.
Industry:Earth science
An actual, real pendulum, as contrasted to a hypothetical, non existent pendulum. The motion of a physical pendulum cannot be described exactly by mathematical formulas.
Industry:Earth science
An additional printing, usually in a distinctive color, onto a map which is complete in itself. Overprints may be used to reproduce specialized information on a general map (e.g., aeronautical information on a topographic map) or to incorporate revised data without having to change existing plates.
Industry:Earth science
Lands granted to a railroad and located on each side of the railroad. The location of the lands became fixed upon adoption of a center line. Indemnity lands were selected in lieu of place lands which had already been granted for other purposes.
Industry:Earth science
Any one of the many factors determining the greatest altitude at which photographs can be taken without violating the specifications for the map to be compiled from the photographs. Among these factors are the configuration and albedo of the terrain to be photographed, the transparency of the atmosphere and the capabilities of the photographic and photogrammetric systems to be used. The term is usually used in a collective sense to denote the set of all contributing factors.
Industry:Earth science
