Online Lessons
NGS, in partnership with The COMET Program, has developed a series of self-paced lessons on geodetic and remote sensing topics. Create a free MetEd user account to gain access to the courses below and many others that may be of interest. You will have the option of printing out a certificate upon successful completion of the quiz at the end of each lesson.
* Please note, if you created a MetEd user account before August 2025, you will need to create a new account to access MetEd’s updated learning management system.
These lessons are rated by skill level:
0 = Suitable for non-scientists1 = Requires basic scientific literacy
2 = Requires some prior knowledge of the topic
Understanding Heights and Vertical DatumsSkill Level: 0
GNSS Positioning: Survey Planning and Data AcquisitionSkill Level: 1
Foundations of Global Navigation Satellite SystemsSkill Level: 2
Gravity for Geodesy I: FoundationsSkill Level: 2
Gravity for Geodesy II: ApplicationsSkill Level: 2
For additional educational resources, visit the National Ocean Service Education page for students and educators.
