Category Archives: map making

Aspect of Map Projection

The aspect describes the mutual position of the axis of the earth and the axis of the projection. The axis of the earth (black) and the axis of a projection with transverse aspect (red) Axis of a Projection The axis … Continue reading

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Defining Map and Different Types of Maps

The field of geography relies on many different types of maps in order to study the features of the earth. Some maps are so common and others are not so common mainly handled by professionals. What Is a Map? Simply … Continue reading

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New U.S. Datum Requires Location Corrections

A new datum or geospatial reference system is being introduced in the United States to become the official datum in 2022.  Pam Fromhertz of the NOAA National Geodetic Survey gave an overview of the reasoning behind the new datum, technical … Continue reading

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Choosing a Map Projection

   Every map must begin, either consciously or unconsciously, with the choice of a map projection and its parameters. The cartographer’s task is to ensure that the right type of projection is used for any particular map. A well chosen map … Continue reading

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