Sunday 14^th of March 1999:

30. Working day for FIG-Commission 5 Steering Committee members

17.45-19.00 Dinner at NLS (only for FIG 5 Steering Committee members)

Monday 15^th of March 1999:

08.00-09.00 Registration at NLS (L. Boberg, M. Lilje, T. Lithén)

09.00-11.00 Opening ceremony: Chair J-M Becker

J-M Becker, chair FIG Commission 5. Introduction (15 min)

K. P. Schwarz, President IAG: The changing world of geodesy and surveying (40 min)

J. Ollén: Director General National Land Survey: The National Land Survey of Sweden today and tomorrow: (30 min)

J-M Becker: History and evolution of height determination techniques (30 min)

Slideshow with pictures of Sweden (5min)

11.00-11.20 Coffee

11.20-13.00 TS 1: Advance in techniques and instrumentation for terrestrial height determination: Chair M. Kasser

H. Ingensand: The evolution of digital levelling techniques - limitations and new solutions

T. Seto, M. Chiba, T. Nagao and M. Muraki: Results of test and experiments with SDL30 digital level

J. Kakkuri: The rapid precise levelling system - dream or reality

G. Pauchard: New automated real-time 3-D total station, possibilities and limitations

M. Menzel: The development of levels at Carl Zeiss during the past 25 years with special focus on the optical level NI 002 and the digital Level DiNiÒ 11

H.F. Wennström: Information about the exhibition at Karteum - NLS

13.00-14.00 Lunch

14.00-15.20 TS 2: Applications of modern terrestrial height determination techniques: Chair H. Ingensand

W. Wehmann: Experience with various digital levels in both motorised and conventional on foot levelling in east Germany

M. Lilje: The production line used in the third precise levelling in Sweden

T. Lithén and P.O. Eriksson: Motorised Trigonometric Levelling (MTL) for precise levelling – the Swedish tests and results

K.E. Schmidt and C. Jepsen: The use of Motorised Trigonometric Levelling (MTL) in Denmark

15.20-15.40 Coffee

15.40-17.00 TS 3a: Heighting using satellites or other techniques: Chair P. A. Cross

E.W. Grafarend: Sensitive high-speed railway track control

H. Duqenne: Levelling by GPS - the state of the art in France

M. Higgins: Heighting with GPS - overview of possibilities and limitations

R. Jäger: State of the art and present developments of a general approach for GPS-based height determination

Break 10 minutes

17.10-18.10 TS 3b: Heighting using satellites or other techniques: Chair M. Higgins

P. A. Cross: Accuracy achievable by GPS in practical engineering and surveying applications

N. El-Sheimy and Y. Gao: Multi-sensor systems for height determination

G. Roberts: Height control of construction plant by GPS and GLONASS

18.10-19.30 Opening ceremony of the technical exhibition at Karteum by Joakim Ollén (Director General of NLS)

20.00-22.00 Dinner at the City Council Hall, Gävle (Centre of town)

08.30-09.50 TS 4a: Quality Control: Chair H. Heister

S. Csepregi: Some questions on precise height measurements

M. Kasser and J-M Becker: Error sources in high precision levelling - How to minimise their effect on the heights!

T. Fischer: Manufacturing of levelling rods - Methods, Calibration, Accuracy, etc

M. Takalo: On behaviour of invar rods with aluminium frame used in third precise levelling

of Finland

10. Coffee

10.10-11.10 TS 4b: Standards: Chair J. Kääriäinen and O. Altan

H. Heister: Checking, testing and calibration of geodetic instruments

J. Simek and V.Slaboch: Present state of standardisation in surveying Profession

J-M Becker: The new updated ISO standards concerning levelling instruments

Break 5 minutes

11.15-12.55 TS 5: Different aspects: Chair Y. Gao

A. Dodson: Ocean tide loading effects on heights

V. Sedlák: To a contents of deformation vector problem

T. Ambrozic, B. Stopar and G. Turk: Approximation of a local geoid surface by artificial neural network

V. Saaranen and J. Mäkinen: Computation of postglacial land uplift from the three precise levellings in Finland.

B-G Reit: The influence of heights on datum transformations

12.55-13.50 Lunch

13.50-15.30: TS 6: Height Networks: Chair K. P. Schwarz

J. Ihde: Status of the European height systems UELN and EUVN

J. Simek: Heights and vertical control in the Czech Republic: Evolution and present state

M. Poutanen: Use of GPS in unification of vertical datums and detection of levelling network errors

G. Steinberg and H.Papo: The future of vertical geodetic control

W. Augath: The future of levelling networks

50. Coffee

15.50-16.50 TS 7: How to fulfil the User needs: Chair J. Kakkuri

P.O. Eriksson: The requirements on the monumentation of height benchmarks

S. Villadsen and N. Andersen: The implementation of a new common height datum in Denmark

M. Kasser: Best use of different height determination techniques

16.50-18.00 Break – Visit to the exhibition at Karteum - NLS

18.00-19.15: SPECIAL SESSION: Chair J-M Becker

K. P. Schwarz: Some Trends in Geomatics: Multi-sensor systems and global georeferencing

L-E. Eriksson (Governor of the County of Gästrikland): (to be specified)

19.15-22.00 Dinner and possibility to visit the exhibition at Karteum - NLS

08.50-10.30 TS 8: How to meet the End-users needs? : Chair Björn Engen and W. Augath

A. Ellman, A. Torim, N. Abols, J. Kaminskis and E. Sleiteris: Different solutions adopted to modernise the height networks in the Baltic countries

P. Nörgård: High Precision GPS makes challenges to realisations of Reference Systems.

M. Le Pape: Direct access to the French digital Height Databank via Minitel

D. Norin: Requirements from urban users of heights, examples from the city of Stockholm

J. Kääriäinen: Precise levellings in Finland

10.30-10.50 Coffee

10.50- 12.30 TS 9: National reports: Chair A. Ellman and S Villadsen

S. Villadsen: National report on the activities in Denmark

B. Engen: The Norwegian levelling activities today and in the future. Problems and expectations

L. E. Engberg: The Swedish geodetic networks today and in the future.

G. Busics: The past and the future of the levelling networks in Hungary

S. Lundquist: Experiences of technical co-operation in Zambia and Mozambique

12.30-13.20 Lunch

20. Panel Discussion and Summary of the seminar:

J-M Becker, K. P. Schwarz, M. Kasser, H. Ingensand, J. Kakkuri, W. Augath, P Cross, H Heister, S Villadsen, M Higgins

40. Coffee

14.40-17.00 Technical visits and demonstrations at NLS (5 stations): J-M Becker, P.O. Eriksson, M. Lilje, H-F. Wennström,etc.

Practical demonstration of Motorised Levelling ( J-M Becker)

	Demonstration of the control centre of SWEPOS (the national network of permanent reference stations) (G. Hedling)
	The National Historical Map Centre - Swedish maps from several centuries (G Wiking)
	The production of modern digital maps. (T Lithén)
	Laser interferometer comparator in action - calibration of levelling rods (L Boberg)
	Visit at the exhibition at Karteum - NLS.

Note: The Exhibition at Karteum will be open 14.40 - 17.00 (H-F Wennström)

Local organising committee: Jean-Marie Becker, Mikael Lilje, Per-Ola Eriksson, Lena Boberg and Thomas Lithén