New Sydney (Terrey Hills) Radar

September 2009

The new Sydney radar was commissioned on 9 September 2009, see:

Completed Terrey Hills
	radar (photo: Andrew Treloar) Looking up from base of
	Terrey Hills radar (photo: Andrew Treloar)

April 2009

The Bureau of Meteorology is putting the finishing touches on Sydney’s new Doppler radar with the public launch only a few months away following extensive calibration, testing and training.

The new radar is located at Terrey Hills in northern Sydney and will be the fifth of six new high resolution Doppler radars to come online as part of the Australian Government's $62.2 million dollar radar upgrade project. The new Doppler has twice the resolution of the existing Sydney radar at Appin and its Doppler capability allows the display of wind flows associated with weather systems as well as rainfall intensity. Once the radar is operational, both Doppler wind flow and rainfall intensity will be available on the Bureau's website.

Ongoing operational benefits will include:

  • Improved short term forecasts and warnings of severe weather, including hail, damaging winds and tornadoes
  • Improved radar-derived rainfall rates for use in flood warning applications
  • Improved short term forecasts of rainfall
  • Enhanced tracking of the movement and strength of wind changes such as southerly busters, cold fronts and sea breezes.

The series of photos below shows the radar at different stages of construction:

November 2008

fig1

The first 5m tower section in place.

fig2

Second 10m section lowered into place.

fig3

Joining the two sections involved lining up the bolt holes. There are approximately 80 bolts, each 54mm in diameter.

fig4

Aligning the two sections before bolting them together.

fig5

Adding the final 'cone' section (7m). The tower height is now 22m to the top of the cone.

fig6

Skyline view from the top of the cone. The radar has an unobstructed view of the sky above Sydney.

fig7

Lowering the 5 metre pedestal that allows the radar dish to rotate.

fig8

February 2009

Attaching the radar dish. The dish is 8m in diameter.

fig9

March 2009

The protective radome was installed by specialised riggers. Around 50 panels and about 5000 bolts were used. The height of the dome alone is roughly equivalent to a three storey building.

fig10

The dome is completed.