Geographical Base

Geographical Base

 

or geographic base of a map, elements of a thematic map that are not part of its special content. The geographic base facilitates orientation and the elucidation of laws governing the distribution of the phenomena relating to the map’s theme. The theme and purpose of a map determine the content and character of the geographic base. On small-scale thematic maps of the world and of continents the geographic base is frequently restricted to the depiction of the coastline, major rivers and lakes, and large cities. On maps with larger scales the geographic base may also indicate such phenomena as vegetation, relief, lines of communication, political and administrative boundaries, glaciers, and swamps. The geographic base is particularly detailed and graphic on maps designed for practical use, where it ensures the spatial localization of depicted phenomena.

In the compilation of thematic maps the geographic base serves as a kind of framework for cartographic representation and the plotting of specific content. In the compilation of serial thematic maps and atlases a standard geographic base is often prepared, which is then used for a number of interrelated maps.

IU. G. KEL’NER

References in periodicals archive ?
Apart from an expanded geographical base, Onyx CFO Brian Henry said the combined entity would have complementary selling efforts because Onyx sells to the mid-market and above while Pivotal sells to the mid-market and below.
Only this commitment, finally, will allow social historians to deal directly with new challenges, such as the changing geographical base for historical inquiry--challenges that vitally affect social history's role in the discipline as a whole, and which could lead to exciting conceptual breakthroughs in comparative analysis or assessments of globalization.
With Super League still looking to expand its geographical base, South Wales is seen as an area of great potential by many in rugby league circles.
Expands firm's position in the heavy truck market, adds steel, broadens its geographical base and obtains additional unused capacity.
Nolte, who will assume the role of Chairman Emeritus and key advisor to the boards of both companies, said: "From Nolte's perspective the merger with Vertical V strengthens our organization and provides attractive opportunities for the company and its staff to expand its geographical base as well as its service line.
Together, the group will be able to provide a wider range of supported housing services to communities and cover a wider geographical base, sharing resources and costs.
Sales director Mark Lavender said: "To develop the company we have to start to broaden our geographical base.
He will name his new team and is expected to include fresh faces, with an emphasis on young politicians and minorities u both in his team and in the National Executive, in order to expand the party's social and geographical base.
He pointed out that Etisalat was today one of the largest telecommunications companies world wide providing services to more than 85 million subscribers from geographical base of 1.
Because of its narrow geographical base, English rugby league has a relatively small player pool when compared with Australian rugby league, which is a very popular sport in the big eastern seaboard cities in Australia and the surrounding hinterlands.
Mr Parsons said, "Our geographical base is South Wales, the West Country, and moving into the Midlands.
The funding will be used to create new revenue streams, expand the team - particularly in Poland where WAYN's back office operations are managed; enlarge the geographical base of the company and increase the range of online and offline products offered, including a tailored trip planner; expand the ability to share experiences with others using rich media content; and provide exclusive travel and lifestyle benefits to its members.
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