Weather map motion. Two-dimensional streamlines based on wind speeds at various levels show areas of convergence and divergence in the wind field, which are helpful in determining the location of features within the wind pattern. A popular type of surface weather map is the surface weather analysis, which plots isobars to depict areas of high pressure and low pressure. Cloud codes are translated into symbols and plotted on these maps along with other meteorological data that are included in synoptic reports sent by professionally trained observers. The use of weather charts in a modern sense began in the middle portion of the
Condition of possibility Condition of possibility Condition of possibility ("Bedingungen der Möglichkeit") is a philosophical concept made popular by Immanuel Kant. A condition of possibility is a necessary framework for the possible appearance of a given list of entities. It is often used in contrast to the unilateral causality concept, or even to the notion of interaction. For example, consider a cube made by an artisan. All cubes are three-dimensional. If an object is three-dimensional, then it is an extended object. But extension is an impossibility without space. Therefore, space is a condition of possibility because it is a necessary condition for the