What is Surfer?

Surfer is a powerful 2D and 3D mapping, modeling, and analysis software package primarily used in the earth sciences. It's used to create high-quality maps and models from various data formats, including gridding irregularly spaced data into uniform grids, contour maps, surface maps, watershed delineation, volumetrics, and performing advanced spatial analysis. It's commonly used for visualization and analysis in geology, hydrology, environmental science, and other fields that require visualizing data in a spatial context.