Missouri Code of State Regulations
Title 2 - DEPARTMENT OF AGRICULTURE
Division 90 - Weights, Measures and Consumer Protection
Chapter 62 - First and Second Order Horizontal and Vertical Control
Section 2 CSR 90-62.040 - Acceptance and Publication by Missouri Department of Agriculture

Universal Citation: 2 MO Code of State Regs 90-62.040

Current through Register Vol. 49, No. 18, September 16, 2024

PURPOSE: The division is amending this rule to modernize the language and terms in this rule.

(1) The following information will be submitted for each control survey that is to be evaluated for inclusion into the Missouri Geographic Reference System (MO GRS) as a first or second order station.

(A) A sketch will be submitted showing all stations occupied during the control survey. In addition to occupied stations, the sketch should show other existing horizontal or vertical stations located within or near the project area

(B) A legend on the sketch should show the following information:

Project Name

General Locality

Name of organization performing observations

Date of project start and completion

(C) A north arrow and graphic scale should appear on the sketch. All station symbols should be labeled with the station name. When stations are spaced too closely together to be clearly depicted on the network sketch, an inset shall be used.

(2) A report shall be submitted for each project and shall be signed and sealed by the professional land surveyor or professional engineer in responsible charge. The report shall be the main source of information for judging whether or not the stations should be accepted as MO GRS stations. It shall be the responsibility of the professional land surveyor or professional engineer to supply sufficient information in the report to facilitate inclusion of the stations in the MO GRS.

(3) The report shall contain a clear description of the survey procedures and equipment used in the field. This includes, but is not limited to, the information entered into the field log and auxiliary information such as logistics, preanalysis , satellite selection results (if Global Positioning System (GPS) survey), personnel involved, and difficulties encountered.

(4) In the report there shall be a clear description of the procedures used in the office. This includes, but is not limited to, computer software and hardware used to process observations, options used (if any), data editing performed, source of orbital data (if GPS survey), parameters adjusted and held fixed, results of self-validation and any difficulties encountered.

(5) The following shall be included for GPS surveys. The version number and date of the GPS software used must be reported. For GPS surveys, the professional land surveyor or professional engineer must also specifically report the baselines rejected for the project. All parameters used for any coordinate transformations shall be presented and any scaling of the covariance matrix by the professional land surveyor or professional engineer must be described in detail. If the covariance matrix has been scaled, the scale factor used must also be presented. These results must be reported for all single base line and network solutions. Statistical testing of the survey results from the network solution, including analysis of variance factors, semi-major axis of two- (2-) dimensional (horizontal) or three- (3-) dimensional ninety-five percent (95%) (horizontal and vertical) relative confidence regions between all directly connected pairs of stations, residuals and residual outliers shall be provided. In addition, the results of any self-validation checks must be reported including, but not limited to, comparisons of any repeated single base line solutions.

(6) For traverse surveys, all field data used to determine directions, distances, azimuths, and elevations, as well as the adjustment calculations, shall be submitted along with the name of the software used in the adjustment. The data submitted shall show the final results of the adjustment and the error analysis.

(7) Only those stations meeting the requirements of 2 CSR 90-62.030, 2 CSR 90-62.040, 2 CSR 90-62.050, and 2 CSR 90-62.060 will be accepted for publication in the MO GRS.

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