Conference and Seminar Proceedings

Technical Seminar on Reference Frame in Practice

 - Reference Frames, Datum Unification and Kinematics

1-2 May 2016 at Rydges Latimer, Christchurch, New Zealand

Sunday 1 May 2016

08:30 – 09:00 Welcome and Opening Remarks

Mr. Nic Donnelly (Convenor), Prof. Rudolf Steiger (FIG Council), Prof. Volker Schwieger (FIG Comm 5), Mr Gary Johnston (IAG), Dr. John Dawson (UN-GGIM-AP), Miss Rachelle Winefield (NZIS)

09:00 – 10:30 Session 1: Introduction to 3D Reference Frames / Datums

Prof. Chris Rizos (Australia) - presented by Mr Nic Donnelly (New Zealand)
Global reference systems and frames: ITRS / ITRF / WGS-84; transformations; determination of ITRF; contribution of geodetic techniques to ITRF: VLBI, GNSS, DORIS, SLR; the relationships between global/local reference frames and global positioning technologies.

10:30 – 11:00 Morning Tea

11:00 – 12:30 Session 2: Introduction to Vertical Reference Frames / Datums 

Prof. Bill Kearsley  (Australia)                                        
Gravity and geopotential numbers; physical heights (dynamic, orthometric, normal); reference surfaces (geoids and quasigeoids); levelling datums; GNSS heighting.
[handouts - 2a] [handouts - 2b]

12:30 – 13:30 Lunch

13:30 – 15:30 Session 3: Kinematic Frames and Deformation Modelling

Dr Chris Pearson (New Zealand):
Deformation Modelling 1
Kinematic vs plate-fixed frames; sources of deformation; observing deformation (CORS, GNSS campaigns); dislocation modelling; example of HTDP software for modelling in USA.

Dr Chris Crook (New Zealand):
Deformation Modelling 2
Role of deformation models in transforming between global and local frames; user requirements for deformation modelling; forward and reverse patches; example of New Zealand deformation model.

15:30 – 16:00 Afternoon Tea

16:00 – 17:30 Session 4: Case Studies 1

Mr Basara Miyahara (Japan) and Dr Koji Matsuo (Matsuo):
Case study of Japan
Semi-dynamic datum of Japan; deformation model of Japan, including the 2011 Tohoku earthquake; geoid and gravity change due to large earthquakes including the Tohoku earthquake.

Dr Dan Roman(United States):
Case study of USA
Current horizontal and vertical datums in USA; proposed new kinematic datum; GRAV-D project for a centimetre geoid; proposed new vertical datum.

Mr Graeme Blick (New Zealand):
Case study of New Zealand
New Zealand Geodetic Datum 2000; airborne gravity collection and new vertical datum; requirements for a modern geodetic datum.

19:00 – 22:00 Seminar Dinner – Rydges Latimer

Monday 2 May 2016

09:00 – 10:30 Session 5: Case Studies 2

Brief Datum Case Studies – ICG-supported delegates
Brief presentations from ICG-supported delegates discussing current geodetic infrastructure, reference frames and plans for the future in their countries; discussion of challenges for developing nations.

Charisma Cayapan  (Philippines)

Joanna Kuczynska-Siehien (Poland)

Andrick Lal (Fiji)

Niraj Manandhar (Nepal)

Asakaia Tabuabisataki (Fiji)

Dr John Dawson(Australia):
Case Study of Australia
GDA94 and its relationship to ITRF (14-parameter transformation); user requirements for modernised reference frames in Australia; proposed two-frame system (plate-fixed and kinematic); deformation modelling.

Mr Neil Ashcroft (Singapore) – Presentation on behalf of Leica

Mr Paul Drummond (New Zealand) – Presentation on behalf of Trimble

10:30 – 11:00 Morning Tea

11:00 – 12:30 Session 6: International Geodesy Initiatives

Dr John Dawson(Australia):
Asia-Pacific Reference Frame; relationship to ITRF; benefits of connecting to APREF; contributing to APREF; role of UN-GGIM in geodesy; United Nations resolution on geodetic reference frames and infrastructure. [handouts ]

Mr Larry Hothem (United States):
Geodetic Initiatives at International Organization for Standardization (ISO)
Role of ISO; ISO/TC211 (Geomatics); Geodetic Standards; Geodetic Registry.
[handouts ]

Mr Nic Donnelly (New Zealand): SNAP Least Squares Adjustment Software
Introduction to the freely available SNAP geodetic adjustment software;reference frame transformations; utilising deformation and geoid models; coordinate calculation via least squares adjustment.

12:30 – 13:30 Lunch

13:30 – 15:30 Session 7: Geodetic Infrastructure and GIS

Mr Richard Stanaway (Australia):
A template for the development of a modern national reference frame
Physical infrastructure, connection to ITRF, estimating a velocity field/deformation model, vertical datums, geoid models, estimation of transformation parameters from legacy datums, local plane grids, GIS configuration using proj4 and wkt formats.
[handouts ]

Ms Ruth Neilan (New Zealand):
The International GNSS Service
Introduction to the products and activities of the International GNSS Service (IGS).

Dr Suelynn Choy (Australia):
A brief introduction to Multi-GNSS.

15:30 – 16:00 Afternoon Tea

16:00 – 17:30 Session 8: Geodetic Software

Dr John Dawson (Australia):
SINEX Manipulation Software
SINEX manipulation for geodetic applications.

Mr Ryan Ruddick (Australia):
RTKLIB Software
Introduction to RTKLIB open source GNSS software.

Dr Chris Pearson (New Zealand):
SNAP Least Squares Adjustment Software – Nepal Case Study
Use of the SNAP software for doing calculations using a deformation model after the 2015 Nepal earthquake.

17:30 Closing Remarks – FIG Commission 5