Agenda

Webinar instructions will be emailed before the date of the webinar.

Please log into the webinar 15 – 30 minutes before start time.

Tuesday, January 9, 2024
9:00 am – 4:30 pm CST

 

Presented by: Dr. Thomas H. Meyer

Introduction

  • The length and orientation of the Albuquerque International Airport’s main runway by inversing geodetic coordinates at its end points
  • Converting the end-point coordinates to UTM, SPC83, SPC22, and ground coordinates
  • Re-computing the length and orientation using the grid coordinates, and seeing all the results are different

Earth Models: Reference Ellipsoids

  • Semi-major and semi-minor axes, flattening, first and second eccentricit
  • Radii of curvature, Gaussian curvature
  • Clarke 1866, GRS 80, WGS 8

Datums, Reference Systems, and Reference Frame

  • International Terrestrial Reference System
    • ECEF
    • US NSRS
  • International Terrestrial Reference Frames: ITRFxx, NAD83(xxxx), WGS84, NATRF2
  • Connection to the Global Positioning System and other GNSSs
  • Time-dependent positioning

Geodetic Coordinates

  • XYZ
  • Geodetic Longitude, latitude, and height
    • λφh ↔ XYZ
  • East, North, up
    • ENU ↔ XYZ
  • Reconciling GNSS coordinates with total-station observations

Geodetic Distances and Directions

  • Geodesics
  • The forward problem
  • The inverse problem

Grid Coordinates

  • Conformal projections
    • Point-scale factor
    • Grid convergence
    • Reducing geodesic distances to the mapping plane
  • SPC83
  • UTM

The Effect of Elevation

  • Topographic enlargement
  • Elevation factor
  • Reducing slope distances to a reference ellipsoid

Low-distortion Map Projections

  • SPC22

 

Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

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Credits

Engineers
6.5 PDHs*

Land Surveyors
6.5 PDHs*

 

Continuing Education Credit Information

This webinar is open to the public and is designed to qualify for 6.5 PDHs for professional engineers and land surveyors in most states that allow this learning method.

*This course is not approved for New York engineers or surveyors. Please refer to specific state rules to determine eligibility.

HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider No. 0004647), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700) and North Carolina (S-0130).

HalfMoon Education is an approved continuing education sponsor for land surveyors licensed in Indiana (License No. CE10600325), Maryland, and North Carolina (S-0130). This course has been approved for 6.5 PDHs for land surveyors in Missouri and Florida.

Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (multiple attempts allowed).

On-Demand Credits

The preceding credit information only applies to the live presentation. This course in an on-demand format may not be eligible for the same credits as the live presentation; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate.

Speakers

Dr. Thomas H. Meyer, Ph.D.

Professor of Geodesy, University of Connecticut

Dr. Meyer is a professor in the Department of Natural Resources and the Environment at UConn’s College of Agriculture, Health and Natural Resources (CAHNR). He is a member of the American Society of Civil Engineers and the American Society for Photogrammetry and Remote Sensing, and he is a fellow and past president (2016, 2019) of the American Association for Geodetic Surveying. Dr. Meyer is a past president (2006-2007) of the Geomatics Society of New England (previously known as the New England Section ACSM) and a member of the editorial boards of the Journal of Surveying Engineering and Surveying and Land Information Science. Dr. Meyer earned his Ph.D. degree from Texas A&M University (College Station, 1998) where he was a research associate in the Mapping Sciences Laboratory. He was named a UConn Teaching Fellow (2015), and he has taught geomatics courses at the graduate and undergraduate levels in geodesy, geographic information science, digital terrain modeling, spatial statistics, and global navigation satellite system surveying. Dr. Meyer has authored an undergraduate-level geodesy textbook and numerous peer-reviewed papers about surveying and mapping, and he teaches professional education seminars for surveyors throughout New England and the United States.