Cromwell Seminar Series - Vertical Datum Improvement


In June 2016 LINZ released New Zealand Vertical Datum 2016 (NZVD2016). This improved datum supersedes NZVD2009, providing more accurate orthometric heights and vertical datum relationship models which provide better constancy with the 13 historic local vertical Datums.

Topics covered by the workshop include:

• Height Modernization

• The improvement of NZVD2016

• Height determination and accuracies


Rachelle Winefield - Geodetic Surveyor at Land Information New Zealand

Rachelle Winefield is a Geodetic Surveyor at the National Geodetic Office at Land Information New Zealand. Her interests include vertical reference systems. Rachelle holds a BSurv from Otago (2007) and a MSc (geophysics; to be conferred in December 2016), from Victoria University of Wellington.

Rachelle is a member of NZIS and current chair of the Positioning and Measurement Stream.

Bruce Robinson - Director at Global Survey Limited -B.Surv (Credit)

Director of Global Survey Ltd (Leica Geosystems, NZ agent.) Special interest around changing GNSS technology and its integration with, IT, and Communication technology to improve spatial data capture and analysis for client delivery. Previously a licensed cadastral Surveyor both in New Zealand and South Africa.

Venue:Golden Gate Lodge

Address:Barry Avenue, Cromwell, Central Otago



Phone: 03 445 1777

Registration Fee:Members:$190.00 + Gst -Non-members:$240.00 + Gst

For further information contact Vanessa Delegat on 04 471 1774 or email:

NZIS Event Registration Form.pdf

NOTE: Your CPD points will automatically be added to your Dashboard after the event takes place.

  • 4.00 CPD points
  • 25/11/2016 - 25/11/2016
  • 09:30 - 12:30
  • Cromwell   TBA   Cromwell   NZ
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