A grid map is a type of cartographic technique that divides a region into equal-sized units, often squares or hexagons, to facilitate easy reference and measurement.

Cartography is the art and science of creating and using maps, charts, and other graphic representations of geographic information.

The Mercator projection is a cylindrical map projection that is commonly used to represent the entire world on a flat surface. It is known for its ability to preserve angles and directions, making it useful for navigation.

A topographic map is a type of map that primarily depicts landforms and elevations. It uses contour lines to represent the shape and height of the terrain.

An isoline map is a type of cartographic technique that uses isolines to connect points of equal value, such as temperature or elevation. It allows for the visualization of spatial patterns and trends.

Reprojection is the process of transferring geographic information from one map projection to another. It involves converting coordinates from one projection system to another to ensure accurate representation and analysis.

A choropleth map is a type of cartographic technique that uses different colors or shades to represent different categories or ranges of data on a map. It is commonly used to visualize the spatial distribution of statistical data.

Photogrammetry is the process of creating a map from aerial or satellite imagery. It involves using specialized techniques to extract accurate measurements and geographic information from photographs.

The Mercator projection is commonly used for navigation and marine charts because it preserves angles and directions, making it useful for plotting courses and determining distances.

A digital elevation model (DEM) is a three-dimensional representation of a geographic area. It is commonly used to visualize terrain and elevation data, and is often generated from topographic maps or aerial imagery.

A symbol map is a type of cartographic technique that uses symbols or icons to represent specific features or objects on a map. It is commonly used to display point data, such as cities, landmarks, or natural resources.

A time series map is a type of cartographic technique that shows the distribution of a particular phenomenon over time. It is commonly used to visualize trends and changes in data over a period of time.

The Robinson projection is commonly used for world maps and atlases because it provides a balanced representation of the Earth's landmasses and oceans, while minimizing distortions in size and shape.

A thematic map is a type of cartographic technique that shows the spatial relationship between different features or objects. It is commonly used to visualize the distribution of specific themes or topics, such as population density, land use, or climate patterns.

The azimuthal equidistant projection is commonly used for polar regions because it preserves distances and directions from a central point, making it useful for navigation and polar exploration.