Details for Surveying and Mapping Technicians
Description
Perform surveying and mapping duties, usually under the direction of a surveyor, cartographer, or photogrammetrist to obtain data used for construction, mapmaking, boundary location, mining, or other purposes. May calculate mapmaking information and create maps from source data, such as surveying notes, aerial photography, satellite data, or other maps to show topographical features, political boundaries, and other features. May verify accuracy and completeness of topographical maps.
Tasks
- Position and hold the vertical rods, or targets, that theodolite operators use for sighting to measure angles, distances, and elevations.
- Check all layers of maps to ensure accuracy, identifying and marking errors and making corrections.
- Design or develop information databases that include geographic or topographic data.
- Monitor mapping work or the updating of maps to ensure accuracy, inclusion of new or changed information, or compliance with rules and regulations.
- Produce or update overlay maps to show information boundaries, water locations, or topographic features on various base maps or at different scales.
- Determine scales, line sizes, or colors to be used for hard copies of computerized maps, using plotters.
- Compile information necessary to stake projects for construction, using engineering plans.
- Identify and compile database information to create requested maps.
- Operate and manage land-information computer systems, performing tasks such as storing data, making inquiries, and producing plots and reports.
- Compare survey computations with applicable standards to determine adequacy of data.
- Analyze aerial photographs to detect and interpret significant military, industrial, resource, or topographical data.
- Research and combine existing property information to describe property boundaries in relation to adjacent properties, taking into account parcel splits, combinations, or land boundary adjustments.
- Calculate latitudes, longitudes, angles, areas, or other information for mapmaking, using survey field notes or reference tables.
- Compare topographical features or contour lines with images from aerial photographs, old maps, or other reference materials to verify the accuracy of their identification.
- Trace contours or topographic details to generate maps that denote specific land or property locations or geographic attributes.
- Provide assistance in the development of methods and procedures for conducting field surveys.
- Trim, align, and join prints to form photographic mosaics, maintaining scaled distances between reference points.
- Answer questions and provide information to the public or to staff members regarding assessment maps, surveys, boundaries, easements, property ownership, roads, zoning, or similar matters.
- Complete detailed source and method notes describing the location of routine or complex land parcels.
- Adjust and operate surveying instruments such as prisms, theodolites, electronic distance measuring equipment, or electronic data collectors.
- Collect information needed to carry out new surveys, using source maps, previous survey data, photographs, computer records, or other relevant information.
- Conduct surveys to ascertain the locations of natural features and man-made structures on the Earth's surface, underground, and underwater, using electronic distance-measuring equipment, such as GPS, and other surveying instruments.
- Enter Global Positioning System (GPS) data, legal deeds, field notes, or land survey reports into geographic information system (GIS) workstations so that information can be transformed into graphic land descriptions, such as maps and drawings.
- Perform calculations to determine earth curvature corrections, atmospheric impacts on measurements, traverse closures or adjustments, azimuths, level runs, or placement of markers.
- Prepare cost estimates for mapping projects.
- Prepare topographic or contour maps of land surveyed, including site features and other relevant information, such as charts, drawings, and survey notes.
- Record survey measurements or descriptive data, using notes, drawings, sketches, or inked tracings.
- Search for section corners, property irons, or survey points.
- Set out and recover stakes, marks, or other monumentation.
- Supervise or coordinate activities of workers engaged in surveying, plotting data, drafting maps, or producing blueprints, photostats, or photographs.
Interests
- Realistic - Realistic occupations frequently involve work activities that include practical, hands-on problems and solutions. They often deal with plants, animals, and real-world materials like wood, tools, and machinery. Many of the occupations require working outside, and do not involve a lot of paperwork or working closely with others.
- Conventional - Conventional occupations frequently involve following set procedures and routines. These occupations can include working with data and details more than with ideas. Usually there is a clear line of authority to follow.
Education, training, experience
- Education - Most occupations in this zone require training in vocational schools, related on-the-job experience, or an associate's degree.
- Training - Employees in these occupations usually need one or two years of training involving both on-the-job experience and informal training with experienced workers. A recognized apprenticeship program may be associated with these occupations.
- Experience - Previous work-related skill, knowledge, or experience is required for these occupations. For example, an electrician must have completed three or four years of apprenticeship or several years of vocational training, and often must have passed a licensing exam, in order to perform the job.
Knowledge
- Customer and Personal Service -Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.
- Clerical -Knowledge of administrative and clerical procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and other office procedures and terminology.
- English Language -Knowledge of the structure and content of the English language including the meaning and spelling of words, rules of composition, and grammar.
- Engineering and Technology -Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.
- Design -Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.
- Mathematics -Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.
- Computers and Electronics -Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.
- Geography -Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life.
Skills
None found.
Related careers
None found.
