Cartographers and Photogrammetrists

Cartographers and Photogrammetrists typically perform the following tasks: • Compile data required for map preparation, including aerial photographs, survey notes, records, reports, and original maps. • Delineate aerial photographic detail, such as control points, hydrography, topography, and cultural features, using precision stereoplotting apparatus or drafting instruments. • Prepare and alter trace maps, charts, tables, detailed drawings, and three-dimensional optical models of terrain using stereoscopic plotting and computer graphics equipment. • Study legal records to establish boundaries of local, national, and international properties. • Inspect final compositions to ensure completeness and accuracy. • Revise existing maps and charts, making all necessary corrections and adjustments. • Identify, scale, and orient geodetic points, elevations, and other planimetric or topographic features, applying standard mathematical formulas. • Collect information about specific features of the Earth, using aerial photography and other digital remote sensing techniques. • Examine and analyze data from ground surveys, reports, aerial photographs, and satellite images to prepare topographic maps, aerial-photograph mosaics, and related charts. • Build and update digital databases. • Determine map content and layout, as well as production specifications such as scale, size, projection, and colors, and direct production to ensure that specifications are followed. • Determine guidelines that specify which source material is acceptable for use. • Select aerial photographic and remote sensing techniques and plotting equipment needed to meet required standards of accuracy. • Travel over photographed areas to observe, identify, record, and verify all relevant features. • Estimate resources, such as production hours, required for projects. • Use drone technology to capture high-resolution images and data for map creation and updating.