Should active control networks replace passive control networks?
Blick, Graeme & Nic Donnelly
A geodetic infrastructure has traditionally consisted of physical (passive) geodetic marks in the ground and associated data, including coordinates and datum. Over the past two decades, there has been a move away from providing passive geodetic marks to providing active control networks via Continuously Operating GNSS Reference Station (CORS) networks. Many countries are discouraging the ongoing maintenance and development of passive control networks in favor of developing CORS. In actively deforming countries such as New Zealand there is a strong driver to maintain a passive control network to supplement a national CORS network such as PositioNZ. This paper considers whether active control networks (CORS) can completely replace passive control networks (traditional marks in the ground). The paper considers use of active and passive networks following several recent large earthquakes in New Zealand.
Event: FIG Working Week 2012 : Territory, environment, and cultural heritage
Only personal, non-commercial use of this document is allowed.