06/01/1989 12141

PHOTOGRAMMETRY TECHNICIAN 2

DEFINITION: This is advanced technical work in photogrammetry. An employee in this class performs a wide variety of duties requiring the application of complex photogrammetric methods and procedures to the production of large scale engineering topographic maps. Work involves advanced independent technical duties associated with orientation and operation of highly complex and precise computer aided stereoscopic photogrammetric equipment; serving as a field project coordinator in obtaining geodetic survey data; and using computer aided drafting work stations in the preparation of computer files of digital topographic maps. The employee may function at times in a lead worker capacity. Work is assigned with a minimum of instruction by a technical supervisor who reviews completed work for quality compliance.

EXAMPLES OF WORK: Orients and operates the most complex stereoscopic computer aided plotting, measuring, digital recording and automated drafting instruments and work stations used in the production of graphic and digital topographic mapping and related design data.

Serves as a field project coordinator in directing the activities of a geodetic survey corps to establish accurate ground survey control data for the preparation of topographic maps and basic control monumentation for the densification of high order geodetic control reference system.

Prepares large scale and complex topographic maps; and provides guidance to personnel assisting in less complex drafting and scribing phases.

Performs a final edit and review of conventionally scribe drafted and computer aided drafted topographic maps for accuracy, completeness, and adherence to standards.

Performs related duties as required.

REQUIRED KNOWLEDGE, SKILLS, AND ABILITIES: Knowledge of the application of stereoscopic mapping instruments.

Knowledge of geodetic field survey theory, methods, and techniques as applied to topographic mapping control.

Knowledge of photogrammetric theory, methods, and techniques, as applies to the production of large scale topographic maps for engineering.

Knowledge of algebra, geometry, and trigonometry.

Knowledge of computer equipment systems and use of mapping applications software.

Ability to use computer aided stereoscopic mapping instruments.

Ability to operate electronic geodetic surveying instruments.

Ability to use drafting and scribing instruments.

Ability to identify and digitally compile features observed in the stereoscopic model.

Ability to operate instruments requiring normal three-dimensional vision, color perception, visual acuity, and manual dexterity.

Ability to work at a steroplotting instrument and a video display terminal alternately and routinely for extended period of time.

Ability to understand and follow oral and written instructions.

Ability to establish and maintain effective working relationships with associates.

Physical condition and ability to work outdoors throughout the year and walk cross country and work adjacent to highways.

MINIMUM EXPERIENCE AND TRAINING: One year as a Photogrammetry Technician 1.

                                                                                                                                                      or

Two years of experience in the operation of stereoscopic plotting instruments used in the production of topographic maps or geodetic field surveys and an Associate's Degree in an appropriate engineering technology.

                                                                                                                                                     or

Any equivalent combination of experience and training.