PROJECTIONS FOR WORLD MAPS1

Blending World Map Projections

The idea of designing a new map projection via combination of two projections is well established. Some of the most popular world map projections in use today were devised in this manner. One construction method is to combine two source projections along a common parallel (for example, Goode’s homolosine combines the sinusoidal and the Mollweide projections). A second method calculates the arit...

Spatial Representation with Aspect Maps1

This paper describes the aspect map approach to model the processing of geographic maps. Geographic maps are described as spatial representation media which play an important role in many processes of human spatial cognition. We focus on the aspectuality of representation and therefore deal with aspect maps: spatial organization structures in which one or more aspects of geographic entities are...

World Population in 2050: Assessing the Projections

Joel Cohen was asked by the conference organizers to focus a critical eye on demographic projections and to give special attention to the outlook for the elderly and for total dependency ratios. He was very faithful to his assignment. I have only a few points to raise about his paper before going on to discuss one issue that he did not cover (and was not asked to cover) but that I think should ...

Population Projections and World Population Trends

Graphical design of world map projections

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to da...