National Atlas of India (Selected Maps)
India · 1968
Related Reviews & Articles
A suggestion to include a few more maps in the National Atlas of India
Narvedeshwar Prasad · 1968
This paper discusses the interdependence between national and regional atlases. Coordinated by the Commission on National Atlases of the International Geographic Union, atlas compilation worldwide follows two basic concepts: synthesizing geographical sciences through cartography and providing systematic maps for planning and scientific purposes. National atlases, bounded by country borders, feature comprehensive thematic maps and serve as historical documents of a period, while regional atlases are more flexible in theme selection, emphasizing analytical maps that reflect both current conditions and development potential. Despite differences in scale, content, and function, the two types of atlases complement rather than substitute each other.
A suggestion to include a few more maps in the National Atlas of India
Narvedeshwar Prasad · 1972
A national atlas is essential for portraying a comprehensive geographical perspective of a nation. This paper suggests additions to the preliminary edition of the National Atlas of India (1957) to enhance its utility. Proposed maps include a retro-azimuthal projection centered on India to clarify directional relationships with the world, and a set of four maps depicting mean January and July sunshine hours, annual total sunshine, and generalized isolines of radiation for agricultural planning. Further suggestions cover irrigational potentiality in unirrigated areas, distribution of economic timbers, commercial fruits and spices, and poultry farms. Socio-economic maps are recommended for educational facility coverage, radio broadcasting stations with frequencies, district-wise living standards based on per capita expenditure, and food grain surplus/deficit regions. Supplementary illustrations include monthly solar altitude graphs for five cities, a graphic of the equation of time, comparative mountain peak elevations, and river lengths. These additions aim to provide a more complete and practical reference for diverse users.
Cartographic representation of data in the National Atlas of India
G. K. Dutt · 1968
This study examines the cartographic techniques employed in the preparation of socio-economic maps at a scale of 1:6,000,000 for the National Atlas of India. It finds that traditional dot symbols of varying sizes and colors remain effective for depicting agricultural product distribution, while proportional circles were replaced by proportional squares, as seen in urban population maps. The combination of circles and squares proved effective for representing two related types of information, such as on livestock markets and fairs. For manufacturing production concentrated in specific belts, proportional sectors of circles with distinctive colors were used to depict multiple industrial commodities. When production data were available in multiple units, proportional squares and circles were used concurrently with sectors. If the variety of production at a location did not exceed two, semicircles with suitable colors were more effective. For maps depicting occurrence rather than production, pictorial symbols resembling the represented articles were adopted, arranged in a line when multiple were needed. A critical analysis of the overall effectiveness of these techniques in information representation is also attempted.
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