Request for Input for 2008/2009 Geodetic Control Programme

Updated

The recommendation period for the 2008/2009 geodetic control programme closed at the end of May 2008. The recommendations are currently under consideration, with the programme scheduled to be published in December 2008.

Introduction

LINZ carries out annual geodetic control surveys to upgrade existing marks and extend control into developing areas. We also maintain survey mark beacons and other mark protection structures.

Valuable feedback is provided by the survey profession, other interest groups and members of the public that helps us decide which marks and areas to survey and maintain.

2008/09 Geodetic Survey Programme

LINZ is putting together the 2008/09 geodetic survey programme so that this work can begin in August 2008.

The programme for this year will be nationwide, focusing on both the continued upgrading of important geodetic marks that have not yet been surveyed and adjusted in terms of NZGD2000 (ie less than 5th order NZGD2000 marks), as well as increasing the density of survey control marks in rapidly developing areas where survey activity is concentrated.

Last year, with input from geodetic network users, we were able to:

• upgrade approximately 950 marks to 5th Order standard, and
• maintain beacons and protection structures on approximately 300 existing control marks across the country.

In addition to this work, the programme has funded the:

• ongoing data capture and re-adjustment of NZGD1949 control to 5th Order standard, and
• continuing development, upgrade and maintenance of the PostioNZ network to facilitate the use of GPS technologies in the control network.

Request for input

LINZ relies on the knowledge surveyors and others working in local areas to meet the requirements for geodetic control. We would appreciate any information you have about:

• developing areas that require increased geodetic control
• areas where there are gaps and inconsistencies within the existing control, and
• existing high order geodetic marks that require physical maintenance.

Included for your information are the schedules of marks and areas included in the 2007/2008 programme currently underway.

• 2007/08 Survey Control (xls 363KB)
• 2007/08 Maintenance (xls 465KB)
• 2007/08 Control Areas (View in Google Maps)

Contact details

Please forward any recommendations for marks to be upgraded or maintained and priority areas for new marks by the end of May 2008 to: