TBA4245 - Geodesy


Examination arrangement

Examination arrangement: Portfolio assessment
Grade: Letters

Evaluation form Weighting Duration Examination aids Grade deviation
Approved exercises 30/100
Written examination 70/100 4 hours C

Course content

Geometry of the reference ellipsoid, datum, geoid. Conformal Gaussian map projection of the ellipsoid. Satellite geodesy (GNSS/GPS), centeral GNSS errors. Transformation of GNSS satellite baslelines to a map projection (plane). Estimation of coordinates and heights by least squares adjustment. Reliability analyses of observations and networks.
The content of this course is under revision, due to changes of lecturers. The topic reliability analysis might be moved down to the course TBA4236 Theoretical geomatics. The reliability analysis will in that case be replaced with topics from satellite and physical geodesy.

Learning outcome

The students should have knowledge of:
- Transformation of GNSS baselines to observations in the map projection (plane) and national vertical datum.
- Geometry of the reference ellipsoid, and calculation of coordinates on the reference ellipsoid.
-The general conformal map projection of the ellipsoid onto the plane
-Central sources of errors when doing observations with GNSS (GPS).
-Estimation of coordinates and heights, quality control of observations and reliability analysis of geodetic networks.
-Recent topics in satellite geodesy (SAR interferometry and GRACE observations of ice mass changes)

The students are able to:
- Carry out calculations on the ellipsoid by using the two geodetic main tasks
- Calculate coordinates in the map projection (plane) from GNSS observations
- Carry out and understand reliability tests as described in the Norwegian Geodata standard issued by the Norwegian Mapping Authority
- Understand and mitigate multipath, ionospheric and tropospheric errors on GNSS signals
- Understand recent topics in satellite geodesy

General competence:
The candidate can:
- Understand the theoretical basis for calculations on the ellipsoid and on the map projection (plane)
- Understand the theoretical basis for calculations and reliability analysis of coordinates and heights
-Advanced understanding of GNSS and satellite geodesy (recent satellite geodesy missions)
-Understand and use professional terminology within the discipline
-Work independently and in team and take the necessary initiatives
-Identify common fields between this discipline and other professional disciplines and be open for inter disciplinary approach and cooperation.

Learning methods and activities

Lectures. Computations and laboratory excersises.

Compulsory assignments

  • Exerecises

Further on evaluation

Portfolio assessment is the basis for the grade in the course. The portfolio includes a final written exam (70%) and evaluation of one exercise (30%). The results for the parts are given in %-scores, while the entire portfolio is assigned a letter grade. If there is a re-sit examination, the examination form may be changed from written to oral. For a re-take of an examination, all assessments during the course must be re-taken

Specific conditions

Exam registration requires that class registration is approved in the same semester. Compulsory activities from previous semester may be approved by the department.

Course materials

Hofmann-Wellenhof et al: "GNSS". Compendia published at the department.

More on the course



Version: 1
Credits:  7.5 SP
Study level: Second degree level


Term no.: 1
Teaching semester:  SPRING 2021

No.of lecture hours: 3
Lab hours: 2
No.of specialization hours: 7

Language of instruction: English

Location: Trondheim

Subject area(s)
  • Geomatics
  • Geodesy
  • Nautic
  • Photogrammetry
  • Map subjects
  • Technological subjects
Contact information
Course coordinator: Lecturer(s):

Department with academic responsibility
Department of Civil and Environmental Engineering



Examination arrangement: Portfolio assessment

Term Status code Evaluation form Weighting Examination aids Date Time Digital exam Room *
Spring ORD Approved exercises 30/100 INSPERA
Room Building Number of candidates
Spring ORD Written examination 70/100 C
Room Building Number of candidates
  • * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.

For more information regarding registration for examination and examination procedures, see "Innsida - Exams"

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