# Adjustment computations and reliability analysis in land surveying Study plans 2016-2017 - GEO2151 - 10 ECTS

## Expected learning outcomes

In the end of this course, the student should be able to:

• Understand and explain the main principles og least squares adjustment
• Use the most common Norwegian sotwares for adjustment computations for levelling-, GNSS- and total station observations
• Understand an explain relevant Norwegian standards for adjustment computations and corresponding documentation
• Do adjustment in practice on a given dataset
• Assess the quality of observations, background data and the outcoming results of an adjustment
• Deliver professional reports of adjustment computations

## Topic(s)

- Introduction/repetition of linear algebra
- Least squares adjustment (the parameter method)
- Development og error equations for  leveoobservatio types levelling, total station, GNSS baseline, GNSS point observation
- Weight functions for the same observation types as above
- The theory behind multiple t-test, Chi-square test, F-test, confidence intervals, inner and outer reliability
- Adjustment computations by means of the most common Norwegian softwares and corresponding Norwegian standards
- Additional parameters in least squares adjustment (scale, rotation and deflection of the vertical)
- Simulation and planning of reference point measurement

Lectures
Group works
Tutoring

## Form(s) of Assessment

Oral exam, individually
Exercises

## Form(s) of Assessment (additional text)

•  Assignsments (60%)
•  Oral exam (40%)
•  Both assignments and exam must be passed to pass the course

Assigments: 4 assignmentsm which can be delivered individually or in group. All assignments must be passed. The assignsment grade is based on all 4 assisgnments, which counts 60% of the total course grade.

Assignsments that is not passed can be granted another delivery after appointment with teacher.

Alphabetical Scale, A(best) – F (fail)

## External/internal examiner

Two sencors from GUC

External sencors are being used periodically, next time spring 2020.

## Re-sit examination

Oral exams that is not passed can be granted another attempt after appoint with teacher.

## Coursework Requirements

The course work requirements must be conducted on campus NTNU in Gjøvik. Time of completion given at semester start. The students must deliver and passe 4 assignments before they are permitted for exam.

## Teaching Materials

- Since the course relies heavily on Norwegian professional standards and the Norwegian variant of least squares adjustment and associated statistical tests, all the written course material is also in Norwegian.

- Skogseth, T. (2014). Grunnleggende landmåling. Oslo: Universitetsforlaget (ISBN: 978-82-05-44934-3).
- Instrument- og programvaremanualer (oppdateres jevnlig på nett eller som innebygde systemhjelpfiler)
- HiG: Egne kompendier og notater i utjevningslære, analyse, datum, transformasjoner (oppdateres jevnlig)
- Kartverket (2005). Geodatastandarden (oppdateres ved www.kartverket.no)
- Kartverket (2009). Grunnlagsnettstandarden (oppdateres ved www.kartverket.no)
- Kartverket (2009). Satellittbasert posisjonsbestemmelse (oppdateres ved www.kartverket.no)
- Kartverket (2011). Stedfesting av matrikkelenhets- og råderettsgrenser (oppdateres ved www.kartverket.no)
- Kartverket (2009). Koordinatbasert referansesystem (oppdateres ved www.kartverket.no)