Mapping science

Mapping science

The systemic study of the processes and designs involved with map making.

Industry: Earth science

Add a new term

Contributors in Mapping science

Become a Contributors

Mapping science

Accuracy testing

Earth science; Mapping science

Testing, by sampling, whether or not a map complies with specified standards of accuracy. It cheques both relative and absolute accuracies of distances, lengths, and elevations shown on the map. ...

Auto-centering

Earth science; Mapping science

The interchange of instrument with target, sub tense bar, etc. , on a tripod in such a manner that centering over the marker is maintained automatically.

45o astrolabe

Earth science; Mapping science

A prismatic astrolabe in which the prism directs the line of sight at a 45° angle to the horizontal.

Baldwin solar chart

Earth science; Mapping science

A diagram designed for orienting a planetable by means of the Sun's shadow.

Apothem

Earth science; Mapping science

The perpendicular from the centre of a regular polygon to one of the sides. Also spelled apothegm.

Self indexing alidade

Earth science; Mapping science

An alidade containing a damped pendulum which automatically brings the index mark of the vertical arc to the correct reading on the scale even if the base of the alidade is not quite level.

Barrier island

Earth science; Mapping science

A narrow, sandy island exposed to the open ocean on one side and separated on the other side from the mainland by a narrow, shallow lagoon or embayment. There is a prominent chain of barrier ...