measure

Articles

• Location
  6 August 2004, by D. P.

  The term designates in the first place the position of an object on the earth surface by means of an explicit reference system, which is often the system of geographical coordinates. Those coordinates, essential for locating the object, represent the geometrical part of the G.I.S. It will sometimes be said that they are used to define absolute location of an object, even though any measure defining this location necessarily refers to a conventionally defined marker. The measure of absolute (...)

• Marine current
  26 December 2013, by A. H.

  A current is a moving mass of water, the displacement of which occurs in three dimensions, both on the surface and in the depths. In the marine environment, currents (and masses of water) differ from the surrounding waters in their speed of movement, temperature and salinity. Although marine currents are a phenomenon that has been known for a long time, if only from the drift of ships from their set courses, it is only in the 18th century that the different water masses in the oceans began (...)

• Measure
  6 August 2004, by L. S.

  Operation of measure(ment) consists in attributing values to phenomena of interest in the frame of geographical questioning. On the one hand, it is used to characterise attributes of studied objects, and in these cases comes before any processing. On the other hand , it plays a role downstream, to characterise spatial forms, to describe nature and intensity of relations, to qualify similarities, etc. In the first case, measure is apprehended in the phase of acquisition of information and (...)