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Accurately mapping railroad corridors is essential for reliable maintenance, structural planning, and effective change detection. With Global Mapper Pro’s collection of point cloud processing, terrain analysis, and automated breakline extraction tools, railroad analysis becomes efficient and approachable—whether your data comes from a drone survey or an existing digital eleva...
Satellite-derived bathymetry, also referred to as SDB, is a method used to study the depth of a body of water from aerial imagery. While multi-beam sonar and airborne lidar are reliable techniques, collecting this data can be costly depending on the size and scale of the survey. On href="https://www.bluemarblegeo.com/blog/podcast/satellite-derived-bathymetry-maps-making-wa...
Global Mapper® is a comprehensive GIS application built to make mapping and analysis workflows more efficient for users of all levels of expertise. A key part of any GIS project is data visualization — transforming raw spatial information into visuals that tell a sto...
When working with geospatial data, understanding file formats is essential to managing, sharing, and visualizing information effectively. From raster imagery and vector features to 3D models and point clouds, each file type can play a vital role in GIS workflows.
In this article, we’ll answer some of the most common questions about...
A coordinate reference system (CRS) is a set of parameters that distinguish the geographic coordinates of where things are in the world. In other words, a CRS defines how your data lines up with real-world locations so everything appears where it should on the map. When viewing, analyzing, or editing GIS data, having the correct CRS is essential for maintaining spatial accura...
