What is the primary role of geodesists?

The primary role of geodesists is to utilize datums, which are reference frameworks that help accurately describe the shape and size of the Earth, to fit a mathematically defined spheroid to specific locations on the planet. This involves a detailed understanding of the Earth's geometry, measurements, and variations in gravitational fields, allowing geodesists to create precise coordinate systems that are essential for various applications in surveying, navigation, and mapping.

The work of geodesists is foundational for ensuring that other geographic and mapping activities are accurate and reliable. By defining how the Earth is represented in a coordinate system, they facilitate the integration and comparison of spatial data across different regions and datasets.

While creating topographic maps, managing natural resources, and monitoring climate change involve geographic information, they fall under the broader categories of cartography, resource management, and environmental science, whereas the specific function of geodesists is crucial for establishing the mathematical framework that governs all spatial data.